| [causes of degeneration of cultures of thermoactinomyces vulgaris]. | passage of cultures of thermoactinomyces vulgaris on a peptone-maize medium causes their degeneration which is manifested in an impaired formation of the sporulating aerial mycelium, and in an increase of the amount of non-germinating spores in populations. the process of degeneration depends on the following conditions: the location of the inoculated material (spores) on the surface of a solid growth medium, which is determined by the technique of inoculation; the state of the spores (degenerat ... | 1977 | 882014 |
| [degradation of cellulose by micromonospores]. | sodium benzoate is suggested as an inhibitor of cellulose decomposing bacteria and fungi for detecting and counting micromonospores. cellulose decomposing micromonospores were found in the zone adjacent to the roots of winter wheat and maize; their number, cellulose decomposing activity, morphological, physiological, and antagonistic properties were determined. pasteurization of the material taken from colonies grown on cellulose is recommended for isolation of pure cultures. | 1977 | 895557 |
| intensive fattening of beef cattle on rhodes grass pastures on the lilongwe plain, malawi. | beef fattening experiments were conducted in two wet seasons with malawi zebu (mz) and friesian x malawi zebu (f x mz) steers grazing nitrogen-fertilised rhodes grass pastures. the effects of stocking rate (5,7-5 or 10 steers/ha) and level of supplement (maize: madeya (maize bran) fed to steers at either 0-6 or 1-5 per cent of liveweight) were investigated over a 100 day period. neither stocking rate nor supplement had an effect on daily liveweight gain but gain per hectare increased significant ... | 1977 | 906096 |
| [behavior of various muscule and serum enzymes in sausage pigs fed with damp maize with added propionic acid]. | | 1977 | 911477 |
| digestibilities of nitrogen compounds in rumen bacteria and in other components of digesta in the small intestine of the young steer. | 1. mixed bacteria were obtained from the rumen contents of steers and were taken at different times after the animals had been given different feeds. the feeds contained [15n]urea and in some experiments na2 35so4 so that the bacteria were labelled with these isotopes. 2. samples of labelled bacteria were subjected to a simulated abomasal digestion with pepsin and the digests were infused with a non-absorbed marker, polyethylene glycol, into the duodenums of test steers equipped with re-entrant ... | 1977 | 911740 |
| [the effect of physical shape of dried green feed and of various sources of starch on the site of digestion of carbohydrates and proteins and on the protein synthesis in the cow rumen]. | the experiments were performed on cows with duodenal bridge fistulae to study the influence of the physical form of roughage (forage rye, chopped or pelleted) and of the starch source (barley or maize) on the place of carbohydrate digestion and on microbial protein synthesis. the organic matter digested in the stomachs contained more than 90% carbohydrates. their digestibility was not found to be influenced by the physical form of the roughage and by the kind of starch source. feeding pelleted r ... | 1977 | 921539 |
| nitrogen metabolism in calves. effect of giving different amounts of dietary casein with and without formaldehyde treatment. | i. calves were given a basal diet of straw and flaked maize (12 g nitrogen/kg dry matter (dm)) or diets with some flaked maize replaced by untreated (ut) casein or formaldehyde-treated (ft) casein to give 19, 29 or 34 g n/kg dm. 2. at all intakes rumen ammonia concentrations were lower and amounts of total-n, non-ammonia-n and amino acid-n entering the duodenum were high when ft-rather the ut-casein supplements were given. 3. direct measurement of casein entering the duodenum indicated that givi ... | 1976 | 952834 |
| [endocrine and spermatogenic testicular function. 2. correlations between food protein quality, testosterone level in testes, spermatogenesis and nuclear volume of interstitial cells of leydig in the adult rat]. | male adult wistar rats were given different food proteins through 21 days, including casein and four-per-cent methionine (k diet), maize gluten with amino acid added (m + as diet), maize gluten alone (m diet), and casein with four-per-cent methionine mixed one to three with gelatin (k/g diet). testicular testosterone levels per 100 g live weight were about 411 ng (in animals aged 130 days) or 326 ng in animals aged 160 days) following 21 days of k or m + as feeding (rrp = ten per cent). roughly ... | 1976 | 962478 |
| [relationship between food protein quality and adrenal cortex function. 7. relationship between activity of selected liver and small intestine hydrolases and adrenal cortex function]. | male wistar rats received 10% true digestible crude protein of varying quality (maize gluten (mk) = low protein quality; maize gluten + lysine, tryptophan, threonine, isoleucine (mk + as) = high protein quality) for a period of three weeks. the trial was carried out to investigate the activity of the two enzymes leucine-arylamidase (lna) and aminotripeptidase (tp) in the liver and the mucosa of the small intestine and that of alpha and gamma amylases and of total amylases in the mucosa of the sm ... | 1976 | 962581 |
| [studies on endocrine and spermiogenic testis function. iii. relationships between the quality of dietary proteins, testosterone content of the testes and cell nucleus volume of the leydig cells during postnatal developme-t of rats]. | male wistar rats, aged 15 days, received different qualities of feed proteins through 80 days (absorbable crude protein-rrp = ten per cent). for experimentation, the animals were subdivded into four groups. the first group was given casein plus four per cent methionine (k), the second maize gluten with amino acid added (m + as), the third maize gluten only (m), and the fourth casein plus four per cent methionine mixed one to three with gelatin (k/g). live weight increases after ten days of feedi ... | 1976 | 985008 |
| quantitative evaluation of the oxidation of an exogenous glucose load using naturally labeled 13c-glucose. | maize glucose was used as a natural tracer for studies of metabolism. it is richer in 13c than common vegetables and foods derived from these, and the c02 formed from it is consequently richer in 13c than the co2 expired by man fed on a diet of common vegetables. the quantitative results, obtained by measurement of delta 13c of the expired co2 and of vco2 during the oxidation of an exogenous glucose load (about 100 g) in eight normal subjects over 7 hr, have shown a consumption of 28.64 +/- 1.44 ... | 1976 | 994839 |
| the possibility of dietary protective factors in duodenal ulcer. ii. an investigation into the effect of pre-feeding with different diets and of instillation of foodstuffs into the stomach on the incidence of ulcers in pylorus-ligated rats. | rats pre-fed on a south indian diet show a much higher incidence of ulceration of the stomach after pyloric ligation than those on a north indian diet. removing vegetables and pulses from the north indian diet deprives it of its protective effect. staple foodstuffs with a high buffer content (unmilled rice, unrefined wheat and a millet [ragi]) placed in the stomach after pyloric ligation are also protective, but those with a low buffer content (milled rice, tapioca, sorghum and maize) are not pr ... | 1976 | 995789 |
| [studies on endocrine and spermatogenic testicular function. 5. relationship between dietary protein quality and blood plasma levels of free and bound testosterone in adult rats]. | the blood plasma content of testosterone-linking globulins, free testosterone, and total testosterone in 80 adult wistar rats which received different qualities of feed proteins was determined by means of balancing dialysis and ultracentrifugation, using 3h-testosterone. the first group received casein with four per cent methionine added, the second maize gluten complement with amino acid, and the third casein with methionine and gelatin in a 2:3 ratio, while the fourth group was fed pure maize ... | 1976 | 999422 |
| effect of dietary nitrogen source on carbohydrate metabolism in the rumen of the young steer. | 1. steers, fitted with simple rumen and duodenal cannulas, were given diets of approximately equal parts of flaked maize and hay (a) (containing 16 g nitrogen/kg dry matter (dm) or diets of flaked maize and straw supplemented with decorticated groundnut meal (b), fish meal (c), or heated (d) or unheated (e) soya-bean meal (containing 24 g n/kg dm). chromic oxide was given as a marker with the feeds, and flows of different combined sugars at the duodenum estimated from the values for sugars:marke ... | 1976 | 1009076 |
| leukoencephalomalacia: a mycotoxicosis of equidae caused by fusarium moniliforme sheldon. | when 2 horses were dosed with cultures of a fusarium moniliforme isolate that had previously caused only hepatosis, 1 developed brain oedema and hepatosis, and the other only leukoencephalomalacia. a 3rd horse developed both leukoencephalomalacia and hepatosis after being dosed with another isolate obtained from maize which was associated with a natural outbreak of the nervous form of the disease. since leukoencephalomalacia and hepatosis could be induced by the same culture material, it was con ... | 1976 | 1012650 |
| [histological studies on cow intestinal mucosa and electron microscopic studies of the ruminal epithelium of cows fed a deficient diet for a prolonged time]. | histological and histochemical studies were carried out on the gastro-intestinal mucosa of three experimental cows (roughages/maize silage) and three control animals. the animals were slaughtered on termination of the long-term trial. mucosa samples were taken, for further study, from the rumen, the duodenum, the jejunum, the large intestine and the appendix. histochemical analysis did not reveal any essential differences in the activities of non-specific esterase, alkaline and acid phosphatase ... | 1976 | 1016051 |
| [pathomorphologic changes in the ruminal acidosis of sheep]. | acute and subacute and spontaneous rumen acidosis was experimentally induced in 20 sheep and two lambs after feeding of barley, maize or glycose. the inner organs of those animals then were examined for morphological changes. the changes recorded from experimental acidosis were analogous to those observed after spontaneous outbreaks. hyperaemia and blood leakage were macroscopically observed underneath the rumen mucous membrane which could be easily pulled off. the same signs sometimes were mani ... | 1976 | 1020999 |
| [changes in the protein content and their amino acid makeup in the muscles in feeding rats corn with an increased lysine content]. | the biochemical indexes of the rat muscles were studied as affected by maize with a higher content of lysin. it is shown that a month after an increase in the body weight and mass of muscles are more pronounced in the rats which were fed maize with a higher content of lysin. the latter, evidently, is due to an increase in the content of sarcoplasmatic proteins, rna, as well as macroergic compounds, atp and creatine phosphate, in the muscle of the animals under experiment. the qualitive composit ... | 1976 | 1021906 |
| [toxicologic evaluation of irradiated corn starch by long term experimentation with rats]. | maize starch pasteurized by irradiation was fed to ofa rats (sprague dawley derived) in an uncooked form (irradiated at 300 krad.) and in a cooked form (irradiated at 300 and 600 krad.) at dietary level of 62%. a six month toxicity trial was performed with uncooked starch and a 24 month trial with cooked starch. at the same time a reproduction study was conducted, over 3 generations with 2 litters per generation, using both uncooked and cooked irradiated starch. the parent generation (fo) was ra ... | 1976 | 1026431 |
| [comparative physiological effects of partially hydrogenated herring and rapeseed oils in the rat. 1. mean-term effects on growth, organ weights and heart histology]. | two partially hydrogenated herring oils, containing 15% or 30% of c 22: 1, supplemented or not with linoleic (maize oil), have been fed for 16 weeks to growing rats (15% by weight in the diet), and their effects have been compared to those of peanut oil (controls), and to those of 2 mixtures of rapeseed oil and peanut oil having similar c 22:1 contents (15% and 30%). on the basis of equal amounts of ingested food, the growth of the rats is lower with herring and rapeseed oil than with peanut oil ... | 1976 | 1029425 |
| body lipids of guinea pigs exposed to different dietary fats from mid-gestation to 3 months of age. | pregnant guinea pigs were fed one of three diets: a control low-fat diet, or a high-fat diet containing maize oil or beef dripping. at birth some animals were killed and the remainder reared on the same diet as their mothers till 3 months old. body weight, weight of various adipose tissue depots, size and number of fat cells were measured. animals fed high-fat diets were fatter than control animals. on all diets females were fatter than males. in both instances the increase in adipose tissue mas ... | 1976 | 1029821 |
| body lipids of guinea pigs exposed to different dietary fats from mid-gestation to 3 months of age. ii. the fatty acid composition of the lipids of liver, plasma, adipose tissue, muscle and red cell membranes at birth. | pregnant guinea pigs were fed one of three diets: a commercial low-fat diet, or a high-fat diet containing maize oil or beef dripping. the young were killed at birth and the fatty acid composition of the lipids of the liver, plasma, adipose tissue, quadriceps muscle and red cell membranes was determined. compared with those fed the commercial diet the tissue of the young of mothers fed maize oil had an increased percentage of linoleic acid whereas in those of the young of mothers fed beef drippi ... | 1976 | 1029822 |
| body lipids of guinea pigs exposed to different dietary fats from mid-gestation to 3 months of age. iii. the fatty acid composition of the lipids of plasma, adipose tissue, liver and muscle at 3 months of age. | pregnant guinea pigs were fed one of three diets: a 'control' low-fat diet, or a high-fat diet containing maize oil or beef dripping. offspring were reared on the same diet as their mothers and when they were 3 months old, fatty acid compositions of the lipids of the adipose tissue, blood plasma, liver and muscle were analysed. the proportion of linoleic acid was elevated in both the storage triglycerides and the tissue phosphoglycerides of animals fed 'maize' diet whereas in the 'beef' group th ... | 1976 | 1029823 |
| [carbamide phosphate in sheep feeding]. | experiments were carried out in 1975 with feeding urea-phosphate to year-old sheep of the black face plevenska breed in the course of three months. results showed that giving urea-phosphate instead of urea produces a favourable effect on the digestibility of nutrient matter, the coefficient of digestibility of the test group sheep rising as follows: for fats--11.12 at p less than 0.001; for proteins--5.10 at p less than 0.01; for phosphorus--10.0 per cent (p less than 0.01); etc. dietary nitroge ... | 1976 | 1030871 |
| [development and differentiation of mycelium of trichothecium roseum in submerged culture]. | ontogenesis of trichothecium roseum during biosynthesis of trichothecin was studied during submerged cultivation on maize and synthetic media. growth of the fungus is polycyclic; several generations of the submerged mycelium develop from the submerged conidia on the maize medium, and from the submerged conidia, chlamydospores and budding mycelium on the synthetic medium. differentiation of the mycelium favours biosynthesis of the antibiotic. the nuclei in the cells of the submerged mycelium diff ... | 1976 | 1034193 |
| [protein utilization of mixed feed rations in lactating pigs with reference to the essential amino acid content of the feed proteins. 2. report. utilization of the feed proteins in the use of soy bean extraction residue, waste liquor yeast, horse bean meal fish meal and maize gluten for a basic ration]. | nitrogen trials were performed on lactating pigs to investigate the utilization of protein from some feeding rations. the basal ration fed to the sows consisted of ground barley+oats+flaked potatoes or ground barley+sugar beet chips. the basal ration was supplemented with a protein source. the protein feeds used were extracted soya bean meal, horse bean meal, fish meal, maize gluten and waste liquor yeast. data for the average biological value of the dietary proteins were as follows (in the give ... | 1976 | 1035091 |
| [fatty acids in 80 brands of edible vegetable oil and in 14 brands of mayonnaise (author's transl)]. | the fatty acid patterns have been defined in 80 commonly used table oils chosen at random and of 14 brands of mayonnaise commercially available in west germany. in addition, sterols of the various mayonnaises were analysed. the oils could be grouped into 8 different categories: 12 oliver oils, 8 maize oils, 14 soya oils, 5 linseed oils, 22 sunflower oils, 3 safflower oils, 5 groundnut oils, and 8 rapeseed oils. as a result of the analyses, it is in almost every case a question of a pure variety ... | 1976 | 979069 |
| use of a whey protein concentrate as a supplement to maize, rice and potatoes: a chemical and biological evaluation using growing rats. | liquid whey has long been known to contain proteins of high nutritional value, but their use in human nutrition has been complicated by the high lactose and low protein contents of the whey. modern technological processes of gel filtration and ultrafiltration have made possible the production of whey protein concentrates (wpc) low in lactose. in this investigation, the supplementary effect of wpc on maize and rice proteins was compared with the corresponding effect of dried skim milk (dsm). prot ... | 1975 | 1113195 |
| protein quality of two varieties of high-lysine maize fed alone and with black beans or milk to normal and depleted weanling rats. | opaque-2 corn, modified high-lysine corn with vitreous endosperm, and common corn were compared in rat growth studies. corn alone supplied 8.6% protein; and at both 8.6 and 11.4% protein, corn furnished 60% of the protein and either milk or black beans supplied 40%. the modified corn, which also was high in both lysine and tryptophan, did not differ significantly from opaque-2 corn in its ability to stimulate growth and nitrogen deposition in both well-nourished and partially protein-depleted ra ... | 1976 | 941863 |
| management of deer for experimental studies with foor-and-mouth disease virus. | red, sika, fallow, roe and muntjac deer adapted to captivity in experimental units designed for working with foot-and-mouth disease. the red, sika and fallow deer readily accepted rolled oats and hay as their staple diet. this diet was replaced for the roe and muntjac deer with flaked maize, calf starter pellets and green browse. etorphine/acepromazine ans xylazine were found to be suitable sedatives for detailed examination of the tongue and oral cavity of the various species of deer and gav ... | 1975 | 1136125 |
| production of sterigmatocystin. | a procedure for the isolation of pure sterigmatocystin is described. it involves cultivation of an appropriate fungus on sterile maize, and extraction and column chromatographic purification of the crude extract. with this method sterigmatocystin may be obtained at a fraction of its commercial cost. aspergillus versicolor seemed to be the best producer (5-12 g/kg) in 250 ml erlenmeyer flasks. the yield dropped markedly with increasing flask size. | 1975 | 1141192 |
| the nutritive value of barley compared with maize in broiler diets. | | 1975 | 1144398 |
| studies on the fortification of cane sugar with iron and ascorbic acid. | 1. the feasibility of improving iron nutrition by fortifying cane sugar with fe and ascorbic acid was studied. 2. it was found to be possible to add a number of fe salts together with ascorbic acid to sugar without affecting its appearance or storage properties. 3. the absorption of fe from fortified sugar eaten with maize-meal porridge or made into jam or biscuits was measured in ninety-four volunteer multiparous indian women using the 59-fe erythrocyte utlization method. 4. the absorption of f ... | 1975 | 1148151 |
| [toxin production by fusarium species and occurrence of the toxins in agricultural products]. | in rainy autumnal weather and unfavourable storage conditions, certain agricultural products may be severely infested with fusarium species also in hungary. since 1970 the authors have detected more than 200 fusarium infestations in maize, wheat and mixed fodder. the fusarium toxins were detected thin-layer chromatographically after extraction with chloroform and purification by means of solumn chromatography. apart from f-2 (zearalenone) which is the most frequent toxin, other ultraviolet activ ... | 1975 | 1152976 |
| an evolutionary comparison of plant histones. | histones were extracted from chromatin of the following: a moss (polytrichum juniperinum); the primitive vascular plants psilotum nudum and equisetum arvense; a fern (polypodium vulgare); the gymnosperms fir (abies concolor), yew (taxus canadensis) and gingko biloba; the dicotyledonous angiosperms tobacco (nicotiana tabacum) and maple (acer saccharinum); and the monocotyledonous angiosperms corn (zea mays) and lily (lilium longiflorum). the histones were subjected to polyacrylamide gel electroph ... | 1975 | 1164518 |
| effect of diet on the metabolism of labelled tocopherol in sheep. | 1. eighteen crossbred wethers were allotted at random (six per treatment) to each of the following diets: (1) maize-silage; (2) grass-silage; and (3) chopped hay. after 6 months a single oral dose of d-alpha-[5-me-3h]tocopherol was given to each sheep on these three treatments. 2. blood plasma, rumen liquor and urine radioactivity were measured for 4 d and, at the end of this period, the animals were killed and tissue distribution of 3h was determined. 3. maize-silage generally contained less al ... | 1977 | 870021 |
| effects upon glucose metabolism of feeding a low- or high-roughage diet at two levels of intake to sheep. | 1. to determine the effect of diet and level of energy intake on glucose metabolism in sheep, four dietary treatments consisting of feeding a low-roughage (lr) and a high-roughage (hr) diet at each of two intake levels estimated to provide 586 and 1172 kj (140 and 280 kcal) digestible energy (de)/kg body-weight-0.75 per d were given to each of eight yearling rams in four different time periods each of 4 weeks duration. both diets contained 140 g crude protein/kg using ground maize, mixed hay and ... | 1975 | 1167784 |
| purification of a catalase inhibitor from maize by affinity chromatography. | | 1975 | 1168463 |
| body fat of british and dutch infants. | the fatty acids in the body fat of 41 british and 37 dutch infants between birth and 1 year were determined. at birth linoleic acid contributed 1-3% of the total fatty acids of the body fat in infants in both countries. by one month its proportion in the fat of the dutch infants was about 25% and by four months 32-37%; in the fat of the british infants it was never more than 3%. in the dutch infants this large increase in the linoleic acid percentage was accompanied by a fall in the percentage c ... | 1975 | 1168521 |
| utilization of ribonucleic acid and deoxyoligomer primers for polyadenylic acid synthesis by adenosine triphosphate: polynucleotidylexotransferase from maize. | the atp:polynucleotidylexotransferase isolated and purified from maize seedlings catalyzes the synthesis of polyadenylic acid by the sequential addition of 80 to 200 amp moieties from atp to the 3'-hydroxyl terminus of either ribo- or deoxyoligomers. copurification of the rna and dna-primed activities, identical metal cofactor and reaction requirements for either primer and identical heat inactivation curves with either primer strongly suggest that both primers are utilized by the same enzyme. | 1975 | 1168636 |
| nutritional studies on east african herbivores. 1. digestibilities of dry matter , crude fibre and crude protein in antelope, cattle and sheep. | 1. a series of digestibility trials was done using four animals of each of the following species: friesian cattle (bos taurus), boran zebu cattle (bos indicus), corriedale sheep, fat-tailed sheep, eland (taurotragus oryx pallas), coke's hartebeest (alcelaphus buselaphus cokei günther), thomson's gazelle (gazella thomsonii günther) and bush duiker (sylvicapra grimmia l.). 2. two batches of pelleted food were prepared from ground maize cobs, cassava, whs (a-e) were prepared containing 65 (a)-135 ( ... | 1975 | 1172929 |
| the effects of choline and inositol on hepatic lipid metabolism and the incidence of the fatty liver and kidney syndrome in broilers. | 1. diets high in wheat and low in protein (18%) produced 5 to 6% mortality from fatty liver and kidney syndrome (flks) in broiler chicks whereas there were no deaths from flks in birds fed on a maize/barley diet containing 20% protein. 2. supplementation of the wheat-based diets with choline or inositol (2-5 g additive/kg diet) did not affect the incidence of flks or liver lipid metabolism. 3. the wheat-based diet did not significantly affect the activities of hepatic lipogenic enzymes suggestin ... | 1975 | 1192232 |
| experimental phomopsis leptostromiformis mycotoxicosis of pigs. | the susceptibility of the domestic pig to intoxication by the causative mycotoxin of lupinosis was established experimentally. the symptomatology and pathology of the disease produced by the administration of toxic cultures of the fungus, phomopsis leptostromiformis (kühn) bubák ex lind to pigs are described. the toxin induced severe loss of weight and, in many cases, posterior paresis or paralysis. the principal gross lesions were generalised icterus, orange-red discoloration of the liver, neph ... | 1975 | 1195271 |
| [efficiency of various b vitamins in zein base diets]. | lots of growing rats consume ad libitum rations based on zein (diets a), or zein partially supplemented in lysine and tryptophan (= protein quality of maize) (diets b), or zein supplemented in amino acids to fill totally its deficiencies (diets c). the diets contain 15 mg of niacin, 1.5 mg of thiamine, 2.5 mg of riboflavin and 1.5 mg of pyridoxine per kg. the efficiency of these vitamins is estimated according to their hepatic amounts. compared with the diet a, the liver of animals of diet b con ... | 1977 | 844946 |
| selective effect of a maize diet in reducing serum and brain tryptophan contents and blood and brain serotonin levels. | | 1975 | 1207379 |
| [niacin efficiency in zein base diets]. | lots of growing or adult rats consume ad libitum diets based on zein (12 p. 100 of protein) (diets a), or on zein partially supplemented by lysine and tryptophan (= protein quality of maize) (diets b), or on zein supplemented by amino acids to fill its deficiencies totally (diets c). the diets contain 15 mg of niacine per kg. the diets a 1, b 1 and c 1 receive an addition of 10 mg of supplementary niacin. the efficiency is estimated by the amount of niacin and tryptophan in blood plasma and in l ... | 1977 | 844944 |
| [dialdehyde starches and their hygienic evaluation]. | the paper carries some information on modified starches. tests were staged on albino rats (males and females) to investigate samples of maize dialdehyde starches with the degree of oxidation of 0 (control), 5, 10 and 25 per cent. for 20--25 days the animals were fed on a synthetic diet in which the whole of the starch was replaced with the dialdehyde starch. as demonstrated, the 25% oxidation starch produced an adverse effect on the rats, viz. the animals lagged in the weight gain, suffered from ... | 1975 | 1229112 |
| studies on liver sulphurylase activity in rats: vitamin-a-deficient and low-protein diets. | studies on the sulphurylation of phenols by livers from normal and vitamin-a-deficient rats showed a significant reduction in sulphurylating activity in the acute stage of deficiency. at the 'plateau stage' of deficiency, decrease in this activity was marginal and was not significant. rats consuming a 6% casein diet had a significantly lower liver sulphurylating activity when compared to those fed 12 and 18% casein diets. comparative data on the sulphurylating activity of rats maintained on diet ... | 1975 | 1232600 |
| [studies of the influence of nutritional factors on the ruminal mucosa. 1. structure and functional state of the ruminal mucosa after feeding of extreme rations and abrupt change in nutrition]. | different rations were used in successive experimental periods (dried green feeds (i), fresh green feed from sugar beet tops (ii), concentrates (iii, iv), and maize silage (v), to test the effect they have on the structure and oxidative functions of the ruminal mucosa in cattle. rations i, ii, iv, and v were both energy and protein equivalent. biopsy specimens from ruminal papillae were taken on the day when rations were suddenly changed and on the 21st and 22nd day of the feeding period; they w ... | 1975 | 1233943 |
| [relationship between the quality of dietary proteins and the functional status of the adrenal cortex. variations in the content of transcortion, free corticosterone and total corticosterone in the blood plasma of rats fed with proteins of various quality]. | growing male wistar rats were used to test in which way variations in the quality of dietary proteins (10% absorbable crude protein; casein supplemented with 4% methionine (k); casein/gelatine (1 : 3); maize gluten supplemented with 4 amino acids; and maize gluten) influenced the binding capacity of blood plasma for corticosterone, and the concentration of corticosteroid-binding globulin ("cbg"), total corticosterone, free corticosterone and albumin-bound corticosterone in blood plasma. the bind ... | 1975 | 1233956 |
| [relationship between the quality of dietary proteins and the functional status of the adrenal cortex. 5. content of corticosterone and cortisol in the liver and in the mucosa of the small intestine of rats fed with proteins of various quality (estimation of binding capacity for corticosteroids)]. | relationships between the quality of dietary proteins and the functional state of the adrenal cortex. (5) content of corticosterone and cortisol in the liver and in the mucosa of the small intestine of rats fed proteins of varying quality (estimation of the binding capacity for corticosteroids). growing male wistar rats were used to investigate in which way the quality of dietary proteins (maize gluten and maize gluten supplemented with amino acids) influenced the content of corticosteroids in t ... | 1975 | 1233957 |
| [influence of thermal and mechanical treatment of animal feed on the true digestibility of amino acids. 3. influence of pelleting coarsely-ground cereals on the true digestibility of amino acids]. | it was found that different procedures of heat treatment influenced the true digestibility of nitrogen and of the amino acids in cereals. in view of the fact that under practical feeding conditions pelleting is the most widely used procedure studies were made in trials with young pigs fed coarsely ground barley or maize of pellets of these as sole diet. | 1975 | 1233964 |
| identification of erwinia sp., causing stalk rot of maize in egypt. | the physiological characteristics, pathogenic propensities, and the sensitivity towards certain antibiotics of the causal bacterium of stalk rot of maize, isolated in egypt, were studied. different isolates of erwinia carotovora and e. atroseptica were included for comparative studies. the antibiotic sensitivity tests (including erythromycin) are of no value in differentiating between e. carotovora and e. atroseptica. the cultures of the causal bacterium of stalk rot of maize showed physiologica ... | 1978 | 749412 |
| [studies on the use of wheat rich in crude proteins in the feeding of broilers. 2. carcass yields and carcass composition]. | studies were made to investigate whether the the substitution of maize for high-protein wheat fed in combination with different protein in fattening rations to broilers would influence the carcass yields and chemical carcass composition of broilers. the described dietary regime was not found to have a significant influence on the different criteria of carcass composition (roaster carcass, flesh, abdominal fat, total proportion of utilizable parts) with the exception of the relative proportion of ... | 1975 | 1233971 |
| changes with diet in the composition of phosphatidyl choline of sheep bile. | bile phosphatidyl choline from sheep, in contrast to that from nonruminants, contains low levels of the normal range of polyunsaturated fatty acids. a comparison has been made of the composition of bile phosphatidyl cholines from sheep receiving either a control diet, a control diet supplemented with unprotected maize oil, or a control diet supplemented with soybean oil or tallow that had been protected against hydrolysis and hydrogenation of the rumen. the composition of bile phosphatidyl choli ... | 1975 | 1237773 |
| [studies on the endocrine and spermiogenic functions of testes. i. relationship between the quality of dietary protein and testosterone content in testicular tissue of pubertal rats]. | growing, male wistar rats were fed for 21 days one of four qualitatively different proteins, as follows: 1. casein and 4% methionine (group k) 2. maize meal and amino acid supplement (group m + as) 3. maize meal alone (group m) 4. casein plus 4% of a 1:3 mixture of methionine and gelatin (group k/g) (these rations constitute a decreasing range of biological activity of the diet.) after 21 days of feeding these rations, the testosterone content per 100 g body weight averaged 80 ng in groups k and ... | 1975 | 1241656 |
| resistance to ketosis during prolonged fasting by rats fed on a diet containing undecanoic acid, an odd-carbon-number fatty acid. | 1. sixty-four male rats were fed on a nutritionally complete diet containing 30% of the dietary energy as fat. for thirty-two rats (control) the fat source was maize oil; for the remaining thirty-two rats (experimental) the fat source was triundecanoin-maize oil (7:3, w/w). 2. after 6 weeks, groups of control and experimental rats were fasted and killed on days 0, 1, 2, and 4 of the fasting period. in the experimental group, adipose-tissue fatty acids contained, on average, 246 mmol undecanoic a ... | 1976 | 1244841 |
| [effect of metal ions on the lipolytic activity of rhizopus microsporus]. | various metal ions have different effect on the lipolytic activity of rhizopus microsporus in the course of cultivation on nutrient media having diverse composition. the fungus particulary requires metal ions for the production of lipase on a mineral medium. additional introduction of microelements into a medium containing maize extract has no significant effect on the lipolytic activity. active biosynthesis of lipase by the culture requires zinc. | 1978 | 745554 |
| protein quality of some representative latin american diets by rat bioassay. | a study of the protein quality of twelve different food-mixtures common to latin america, was performed by rat bioassay. the individual foods were cooked and dried and then mixed in the appropriate proportions resembling the original meals. rats of the sprague-dawley strain were used for the bioassays. special emphasis was given to the methodology of the slope-ratio techniques preconized by hegsted and his associates who have claimed that classical bioassays overestimate the nutritive value of p ... | 1976 | 1271122 |
| [coffee pulp and hulls. xi. chemical characteristics of silaged coffee pulp with napier grass (pennisetum purpurem) and corn plant (zea mays)]. | various physical and chemical changes that occur during the process of preparation of coffee pulp silage with the addition of molasses and forage, were identified and measured quantitatively. three types of silage were prepared in duplicate in laboratory concrete silos, 45 cm wide and 50 cm high. the silages contained the following components: coffee pulp (epc), pulp and napier grass (epcn), and pulp with corn fodder (epcm). on a fresh basis, the last two contained equal proportions of coffee pu ... | 1976 | 1275634 |
| aflatoxins and kwashiorkor in durban, south africa. | the present investigation has indicated that maize seeds stored under various simulated seasonal conditions show a spectrum of fungi that appear as a succession. the aflatoxin-producing fungus, aspergillus flavus, is favoured by storage conditions of high temperature and humidity (summer and autumn seasons). this coincides with the more frequent admission of children suffering from kwashiorkor at king edward viii hospital in durban. aflatoxin analysis was undertaken on 74 children diagnosed at k ... | 1992 | 1280037 |
| membrane proteins synthesized but not processed by isolated maize chloroplasts. | one-dimensional maps of proteolytic fragments generated by digestion with staphylococcus aureus protease in sodium dodecyl sulfate (sds) were used to identify three polypeptides synthesized by isolated zea mays chloroplasts. this technique does not depend upon proper incorporation of the newly synthesized polypeptides into a more complex structure for their identification. the only preliminary purification required is electrophoretic separation on sds-polyacrylamide gels. the pattern of radioact ... | 1978 | 701358 |
| [processing, targeting and import into the mitochondria and peroxisomes of proteins coded by nuclear genes]. | i have herein discussed two gene-enzyme families in maize whose protein products participate to purge toxic oxidants from cells, and are thus of importance to all aerobic organisms. we have demonstrated that plant mitochondria import precursor proteins (i.e., presod-3) in a manner analogous to other eukaryotic cells. the "transit peptide" (tp) of presod-3 is 31 amino acid long and has similar properties to other reported tps for mitochondrial and chloroplastic proteins. import to peroxisomes is ... | 1992 | 1294925 |
| [the nitrogen metabolism in the large intestine of ruminants. 8. metabolism of intracecally infused 15n-urea with a supplement of pectin in heifers]. | three heifers with live weights of 255, 261 and 300 kg were supplied with ileo-caecal re-entrant cannulas, jugular vena catheters and bladder catheters. the ration consisted of 4 kg maize silage and 4 kg wheat straw pellets. in a previous period 50% of the digesta flow was collected over 12 h/d on 5 consecutive days and stored in a deep-freeze. during the main period the re-entrant cannulas were disrupted and the flowing digesta was quantitatively collected. precollected digesta and pectin were ... | 1992 | 1296559 |
| [comparative study of the chemical composition and nutritive value of runner bean (phaseolus coccineus) and of common bean (phaseolus vulgaris)]. | scarlet beans (phaseolus coccineus) is an important food grain legume in the diet of rural populations living in the highlands of méxico, guatemala and other countries of latin america. the present study was conducted to obtain more chemical and nutritive data on this grain legume, because of its importance in agricultural production systems and due to the role it plays in rural diets. ten samples were purchased in the highland markets of guatemala, to compare their physical, chemical and nutrit ... | 1992 | 1308649 |
| is5: a mobile enhancer of transcription in escherichia coli. | the cryptic bgl operon of escherichia coli is activated by the spontaneous insertion of mobile dna elements. screening of a collection of such mutations revealed insertion of the 1195-base-pair element is5 into various positions both upstream and downstream of the bgl promoter p0. activation of the operon was in all cases attributable to enhancement of p0 activity. introduction of internal deletions into is5 almost completely abolished p0 enhancement, demonstrating that enhancement is not simply ... | 1992 | 1311089 |
| light microscopy observations of tetrazolium-reducing bacteria in the endorhizosphere of maize and other grasses in brazil. | roots of field-grown tropical maize, panicum maximum jacq. and digitaria decumbens stent., and of sorghum and wheat grown in monoxenic culture with the diazotroph spirillum lipoferum (syn. azospirillum spp.) were examined for tetrazolium-reducing bacteria following incubation of roots in a malate-phosphate buffer-2,3,5-triphenyltetrazolium chloride medium. bacteria were observed between and in cells of the cortex, in intercellular spaces between the cortex and endodermis, in xylem cells, and in ... | 1978 | 667740 |
| role of progesterone and oestradiol in the regulation of uterine oxytocin receptors in ewes. | the interaction between oestrogen and progesterone in the regulation of the uterine oxytocin receptor in sheep was evaluated by measuring the binding of oxytocin to membrane preparations of caruncular and intercaruncular endometrium and myometrium. ovariectomized ewes were assigned in groups of five to each cell of a 4 x 2 factorial design. the four treatments were (a) vehicle (maize oil) for 12 days, (b) progesterone (10 mg day-1) for 9 days, (c) progesterone for 9 days followed by maize oil un ... | 1992 | 1317447 |
| mechanism of ds1 excision from the genome of maize streak virus. | we have previously shown that the maize transposable element ds1 introduced into maize plants by agroinfection can be excised from the genome of geminivirus maize streak virus (msv). excision depended strictly on the presence of an active ac element in the plants. in this study, the excision products or "footprints" left in the msv genome after ds1 excision were extensively characterized and the effects of flanking sequences on ds1 excision were analysed. most types of footprints obtained were c ... | 1992 | 1320185 |
| influence of starches from different sources on protein utilization in rats. | 1. the role of the starch component of cereals and legumes on the utilization of casein-protein was studied. 2. in comparison with maize starch the legume and potato starches caused a significant lowering of net protein utilization (npu). and this reduction in npu could be partially restored by cooking the diets before they were fed to the rats. 3. it is suggested that in npu studies involving rats the experimental diet should always be cooked so that the conclusions drawn may be applicable to h ... | 1978 | 666992 |
| molecular cloning and expression of the gene encoding adp-glucose pyrophosphorylase from the cyanobacterium anabaena sp. strain pcc 7120. | previous studies have indicated that adp-glucose pyrophosphorylase (adpglc ppase) from the cyanobacterium anabaena sp. strain pcc 7120 is more similar to higher-plant than to enteric bacterial enzymes in antigenicity and allosteric properties. in this paper, we report the isolation of the anabaena adpglc ppase gene and its expression in escherichia coli. the gene we isolated from a genomic library utilizes gtg as the start codon and codes for a protein of 48,347 da which is in agreement with the ... | 1992 | 1325205 |
| development and characterization of a generalized gene tagging system for higher plants using an engineered maize transposon ac. | this report describes a series of transposon tagging vectors for dicotyledonous plants based on the maize transposable element ac. this binary system includes the transposase (ts) and the tagging element (ds) on separate t-dna vectors. ts elements include versions in which transcription is driven either by the endogenous ac promoter or by the cauliflower mosaic virus (camv) 35s promoter. ds tagging element includes a gene conferring methotrexate (mtx) resistance for selection and a supf gene to ... | 1992 | 1327269 |
| a study of the protein and amino acid requirements of the growing new zealand white rabbit with emphasis on lysine and the sulphur-containing amino acids. | 1. new zealand white (nzw) rabbits were given, between 4 and 8 weeks of age, a range of diets, based on oats and fish meal, containing from 104 to 255 g crude protein (nitrogen x 6.25; cp)/kg to establish the level of cp below which growth was retarded. 2. in three experiments each diet was fed to four animals and food intake, growth and n balance were measured over 4 weeks. body analysis was also carried out after two of the experiments. 3. the rates of food intake and growth of animals increas ... | 1978 | 638127 |
| nuclear localization signal(s) required for nuclear targeting of the maize regulatory protein opaque-2. | the maize regulatory protein opaque-2 (o2) localizes to the nucleus in both maize and tobacco cells. here we show that in-frame carboxy- and amino-terminal fusions of o2 to reporter protein beta-glucuronidase (gus) were sufficient to direct gus to the nucleus in transgenic tobacco plants and in transiently transformed onion cells. two independent regions of o2 containing 135 and 149 amino acids were identified that were able to redirect gus to the nucleus in both systems. a quantitative biochemi ... | 1992 | 1332794 |
| tourist: a large family of small inverted repeat elements frequently associated with maize genes. | the wx-b2 mutation results from a 128-bp transposable element-like insertion in exon 11 of the maize waxy gene. surprisingly, 11 maize genes and one barley gene in the genbank and embl data bases were found to contain similar elements in flanking or intron sequences. members of this previously undescribed family of elements, designated tourist, are short (133 bp on average), have conserved terminal inverted repeats, are flanked by a 3-bp direct repeat, and display target site specificity. based ... | 1992 | 1332797 |
| [effect of the starch sources barley, corn, potatoes and their ration fractions on the nutrient digestibility and energy utilization in ruminants. 1. comparative studies of nutrient digestibility in cattle and sheep]. | rations with energy parts of 50, 25 and 10% from barley, maize and potatoes were investigated comparatively by means of total metabolism experiments with oxen with a view to arriving at a more precise estimation equation of net energy fat for cattle. parallel to the investigations with oxen the energy and nutrients digestibility of the rations in wethers was measured. the crude fibre content of the rations ranged from 166 to 271 g and the starch content from 69 to 330 g/kg dm. the daily starch i ... | 1992 | 1338356 |
| [new analytic criteria for the characterization of wines]. | isotopic analysis, determination of radioactivity are factors allowing a better characterization of wines. the analysis of the composition in stable isotopes of the constituants of wine can provide new analytic criteria for characterizing wines. thus, the concentration of 13c in ethanol can allow the disclosure of an addition of cane sugar or maize sugar to the musts. a study of the composition in stable isotopes of the water of wines of a certain region made it possible to show a correlation be ... | 1978 | 573085 |
| excision of a transposable element from a viral vector introduced into maize plants by agroinfection. | the geminivirus maize streak virus (msv) was used as a vector to introduce the maize transposable element dissociation (ds) and to study its excision in maize plants. msv carrying ds1 in its genome was introduced into maize plants by agroinfection. excision of the ds1 element from the msv genome was detected only when functions from the transposable element activator (ac) were supplied in trans, either endogenously by the recipient maize plant or by co-transformation with agrobacterium carrying ... | 1992 | 1338948 |
| [determination of lysine requirement in growing rats as based on the catabolism rate of 14-c- and 15-n-labeled lysine]. | male wistar rats (weighing some 80 g at the start of the experiment) were fed diets containing maize gluten as protein carrier and which was supplemented with amino acids (except lysine) in such way that their concentrations came up to the requirement norms. lysine was gradually supplemented this resulting in 10 diets of different lysine content (1.6-10.6 g lysine/16 g n). on the 7th experimental day, 4 animals of each group were labelled with 14c-lysine and subjected to 2-hour measuring of 14co ... | 1978 | 556575 |
| incidence of fusarium moniliforme sheld. in zea mays l. in the rainforest zone of nigeria. | 45 seed samples from 7 states of the rainforest zone of nigeria (ogun, ondo, oyo, bendel, anambra, imo, and cross river) were screened for phytopathogen incidence. whereas drechslera maydis was found in 30 and cephalosporium maydis in 79% of the samples were infected by fusarium moniliforme, with 70% of the samples showing heavy infection. in view of the widespread nature of this economically important fungus on maize in the main cultivation area of nigeria, the necessity for routine laboratory ... | 1979 | 550860 |
| polyploidy and domestication: the origin and survival of polyploids in cytotype mixtures. | the origin and survival of a polyploid in a mixture of this polyploid and its parent(s) is reviewed. with several examples a picture is drawn of the interference of cytotypes in a mixture of cytotypes. some natural polyploids, both wild and domesticated, are very successful. they, like bread wheat and banana, largely replaced their parents. the same is true for some artificial polyploids like autotriploid hybride sugar beet in europe and autotetraploid perennial ryegrass. but when grown together ... | 1979 | 550834 |
| selective infection of maize roots by streptomycin-resistant azospirillum lipoferum and other bacteria. | the percentage of low-level streptomycin-resistant (20 microgram/ml) bacteria in surface-sterilized or washed maize roots was more than a thousand times higher than that in soil populations. there was also a higher incidence of resistant bacteria in rhizosphere as compared with non-rhizosphere soil and bacteria isolated from maize roots were relatively tolerant to several other antibiotics. azospirillum lipoferum was predominant in surface-sterilized roots of field-grown maize and was low-level ... | 1979 | 540253 |
| potential of plant genetic systems for monitoring and screening mutagens. | plants have too long been ignored as useful screening and monitoring systems of environmental mutagens. however, there are about a dozen reliable, some even unique, plant genetic systems that can increase the scope and effectiveness of chemical and physical mutagen screening and monitoring procedures. some of these should be included in the tier ii tests. moreover, plants are the only systems now in use as monitors of genetic effects caused by polluted atmosphere and water and by pesticides. the ... | 1978 | 367768 |
| zambia: drought in monze. | in monze district, zambia, the population must face the drought of 1991-92, corridor disease (tick-borne east coast fever), and aids. the ministry of agriculture in lusaka acted quick in securing available world stocks in maize which are being targeted to households most at risk of starvation. food and other interventions are also being targeted to aids families to help avoid family breakup and economic ruin. the tradition is that a dead man's relatives may seize belongings, even cooking pot ... | 1992 | 1354798 |
| regulative influence of o-aminobenzoic acid on the biosynthesis of nourseothricin in cultures of streptomyces noursei ja 3890b. iv. bistability of metabolism and the mechanism of action of aminobenzoic acids. | using the semi-continuous cultivation technique we could establish that specifically in streptomyces noursei ja 3890b during growth on a medium supplied with d,l-alanine, nh4+, and maize starch there are two different phenotypes of the organism and stationary states of metabolism, respectively. the expression of either the metabolic state i with an enhanced capacity to oxidative deamination of alanine via the nad+-dependent alanaine dehydrogenase or the metabolic state 2 which may be characteriz ... | 1979 | 231865 |
| evaluation of high-protein supplements in children with protein energy malnutrition. | the present study was designed to test the comparative efficacy of cow's milk, a protein, vitamin and mineral mixture (pvm) and soybean textured vegetable protein (somos) as supplements to maize meal porridge in the dietary treatment of children with protein energy malnutrition (pem). each diet was designed to provide approximately 480 kj/kg with 2 protein/kg from the test protein, and 1,8 g protein/kg from maize. response to treatment was measured by loss of oedema, subsequent weight gain, rate ... | 1979 | 111358 |
| the ncypt1 gene from neurospora crassa is located on chromosome 2: molecular cloning and structural analysis. | small gtp-binding proteins are encoded by ras-like genes and play a central role in cell differentiation and membrane vesicle transport. by screening genomic and cdna libraries of the ascomycete fungus neurospora crassa with zmypt genes from zea mays we have isolated a member of the ypt gene family, ncypt1. the gene resides on a 4 kb fragment of genomic dna and contains four introns, which interrupt the coding sequence of a protein of 203 amino acid residues. the ncytp1 gene was assigned to a si ... | 1992 | 1361212 |
| characterization of maize polyamine oxidase. | some structural and biochemical characteristics of polyamine oxidase (pao) purified from maize shoots have been examined. the enzyme has only alanine as n-terminal amino acid and its n-terminal sequence shows a significant degree of homology with tryptophan 2-monooxygenase from pseudomonas syringae pv. savastanoi. the ph optimum for the stability of the native enzyme is 5, similar to that of the barley leaf enzyme. calorimetric analysis shows a single two-state transition at ph 6 with tm 49.8 de ... | 1990 | 1366693 |
| production of active phosphoenolpyruvate carboxylase of zea mays in escherichia coli encoded by a full-length cdna. | | 1990 | 1368521 |
| plant extracts induce chromosome aberrations and sister-chromatid exchanges in chinese hamster ovary cells and human lymphocytes. | effects of extracts from vicia faba were compared with those of zea mays for the induction of sister-chromatid exchanges (sces) and of chromosome aberrations (cas) in chinese hamster ovary (cho) cells. ca induction by the maize extract was also tested in human lymphocytes. the extracts from roots and leaves of vicia faba induced cas and sces in cho cells. the extracts from maize leaves also induced sces and cas in cho cells, and cas in human lymphocytes. maize extracts were more potent in induci ... | 1992 | 1371591 |
| retrotransposon families in rice. | three families of retrotransposons of rice (tos1, tos2, and tos3) were isolated by using a method based on the sequence conservation of the primer binding site for reverse transcription. this method should be generally applicable for cloning retrotransposon of other plants. one retrotransposon, tos3-1, was studied in detail. tos3-1 is 5.2 kb long, has structures common to retrotransposons, such as long terminal repeats (ltr), a primer binding site complementary to the initiator trna, a polypurin ... | 1992 | 1376404 |
| structural and functional analysis of the bz2 locus of zea mays: characterization of overlapping transcripts. | analysis of the transcription pattern of the bz2 locus revealed that overlapping transcripts are derived from opposite dna strands. the most abundant transcript (sense transcript) has an open reading frame coding for a protein of 241 amino acids, whilst in the antisense orientation no open reading frame has been detected; the antisense transcripts are detected only in those tissues that show high levels of sense transcript. particle gun experiments indicate that the sense transcript is sufficien ... | 1992 | 1376405 |
| epitope mapping reveals conserved regions of an auxin-binding protein. | there is now good evidence that maize (zea mays) auxin-binding protein (abp) functions as a receptor. we have synthesized sequential overlapping hexapeptides to map the epitopes recognized by a number of antisera to abp. only a few regions of the protein are recognized, and these are shown to be exposed on the surface. three epitopes predominate, and these are clustered around, but do not include, the glycosylation site. a comparison is made between these maps of sera against purified abp, maps ... | 1992 | 1377914 |
| contribution of the digestive tract microflora to amylomaize starch degradation in the rat. | to study in vivo the contribution of the bacterial flora to amylomaize starch degradation in the rat, germ-free and conventional rats were fed on a diet containing either a normal maize starch or an amylomaize starch. in germ-free rats maize starch was almost totally digested in the small intestine, whereas 40% of the ingested amylomaize starch reached the caecum and 30% was excreted, despite the very high endogenous amylase activity. study by transmission electron microscopy of germ-free caecal ... | 1992 | 1377949 |
| differences between the anticoccidial potencies of monensin in maize-based or wheat-based chicken diets. | experiments were carried out to investigate why the anticoccidial ionophore monensin is more potent against the coccidium eimeria tenella in chickens fed on a maize-based diet (as in the usa) than in chickens fed on a wheat-based diet (as in the uk). the explanation seems to be that the pathogenicity of e. tenella is lower in maize-fed chickens than in wheat-fed chickens, whether monensin is present in the diet or not. possible reasons for this are suggested. the better survival of maize-fed bir ... | 1992 | 1386703 |
| occurrence of mycotoxins in animal feeds. | a total of 1120 grain samples of oats, wheat, rye, barley, and maize, delivered for processing of mixed feeds for animals, were collected during the years 1975 to 1979 from commercial feed mills located throughout poland. in addition, 625 samples of the commercially mixed feeds and protein concentrates were collected during 1976. for the mycotoxin survey, 751 laboratory samples were chosen at random and analyzed. when applying confirmatory tests neither aflatoxins b1, b2, g1, g2 nor sterigmatocy ... | 1992 | 1387162 |
| sorghum mitochondrial atp6: divergent amino extensions to a conserved core polypeptide. | sorghum mitochondrial atp6 occurs as one copy in the line tx398 and as two copies in is1112c. in is1112c a repeated sequence diverged within the atp6 open reading frames. the two open reading frames (1137 bp, atp6-1; 1002 bp, atp6-2) share an identical conserved region of 756 bp but are flanked 5' by divergent extensions of 246 (atp6-1) or 381 bp (atp6-2). tx398 carried only atp6-2. the breakpoint of the repeated sequence of the conserved core region corresponds to the amino acid sequence ser-pr ... | 1992 | 1387559 |
| serologic studies of the maize stalk rot pathogen erwinia carotovora f. sp. zeae. | with the help of serological techniques, namely microprecipitin, agglutination, and gel diffusion, sixteen isolates of maize stalk rot pathogen were proved to be identical. serological techniques have thus been utilized as an additional tool for identifying the pathogen erwinia carotovora f. sp. zea. it was also established that the pathogen does not perpetuate in the seed, either externally of internally. it could, however, be found through serological tests that infected ears carried the patho ... | 1978 | 96628 |
| weaning practices in ilorin community, nigeria. | the paper examines the knowledge, attitude and practice of weaning in 516 mothers in ilorin community, the capital of kwara state of nigeria. women with a higher level of education and family income breastfed for a shorter period, and tended to wean earlier than the illiterate and low income group (p less than 0.05). two hundred and twenty-eight mothers (44.2%) had commenced weaning by 3 months of age while 433 (83.9%) had done so by 6 months. hunger, indicated by crying after a feed or demandin ... | 1992 | 1390380 |
| effect of dietary fatty acid composition on inositol-, choline- and ethanolamine-phospholipids of mammary tissue and erythrocytes in the rat. | the present study investigated the effect of feeding maize-oil, olive-oil and fish-oil diets, from weaning to adulthood, on rat mammary tissue and erythrocyte phospholipid fatty acid compositions. effects of diet on the relative proportions of membrane phospholipids in the two tissues were also investigated. mammary tissue phosphatidylinositol (pi) fatty acids were unaltered by diet, but differences in phosphatidylethanolamine (pe) and, to a lesser extent, phosphatidylcholine (pc) fractions were ... | 1992 | 1390603 |