Publications

immunity in chickens to ascaridia galli.		1947	20340869
resistance induced in chickens by infections with the nematode, ascaridia galli.		1948	18861398
the antibody basis of immunity in chickens to the nematode, ascaridia galli.		1949	18108525
the effect of single infections of variable size on the resistance of chickens to the nematode, ascaridia galli.		1949	18108526
comparison of the antitryptic action of the large roundworm of the chicken (ascaridia galli) and the common earthworm (lumbricus terrestris).		1949	18126541
the influence of dietary pteroylglutamic acid and of apa liver extract on the survival and growth of the nematode, ascaridia galli, in chickens fed purified and natural diets.		1950	15413606
effects of aureomycin and vitamin b12 used separately as feed supplements on resistance of chickens to ascaridia galli (schrank).		1954	13161957
age of chickens and the rate of maturation of ascaridia galli.		1955	13252490
immunity and tolerance of chickens to the roundworm, ascaridia galli (schrank).		1955	14391334
[experimental pathology of chicken helminthiasis caused by ascaridia galli (schrank, 1788)].		1956	13392785
studies in helminth enzymology. ii. properties of an inorganic pyrophosphatase from ascaridia galli, a nematode parasite of chickens.		1959	13663909
the anthelmintic action of phenothiazine and piperazine against heterakis gallinae and ascaridia galli in chickens.		1960	13811187
uptake of sulfur-35-labeled carbon disulfide by ascaridia galli (roundworm) and its chicken host.		1960	14410064
on the interaction between heterakis gallinarum, ascaridia galli, "blackhead" and the chicken.		1962	14468131
in vitro uptake of c14-labeled alanine and glucose by ascaridia galli (nematoda) of chickens.		1963	14053102
distribution of carbon-14 in ascaridia galli and the host chicken, given radioactive alanine or glucose.		1964	14266870
[investigations on the effect of hygromycin on ascaridia galli. 1. adult parasites].		1964	5889454
effects of x-irradiation on the development of ascaridia galli, intestinal worm of chickens.		1965	5863820
[the content of various forms of vitamin a in liver microsomes of chicks immunized by ascaridia galli antigen].		1966	5986471
experimental ascaridiasis: influence of chicken age and infective egg dose on structure of ascaridia galli populations.		1967	6080008
statistical estimation of worm burdens (ascaridia galli) in chickens.		1968	5673255
case report--coumaphos, a new anthelmintic for control of capillaria obsignata, heterakis gallinarum, and ascaridia galli in chickens.		1969	5813244
[biocenosis of ascaridia galli, heterakis gallinarum and salmonella gallinarum and its importance in the pathogenesis of chicken typhoid].		1969	5392120
immunity development in chickens to the large intestinal roundworm, ascaridia galli.		1971	5104153
weight changes in chickens placed on different levels of nutrition and varying degrees of repeated dosage with ascaridia galli eggs.		1971	5129803
further investigations on the use of irradiated eggs to develop immunity against ascaridia galli in chickens.		1971	5165018
comparative evaluation of efficacies of dl-tetramisole and piperazine against ascaridia galli in chickens.		1972	5039527
ascaridia galli (nematoda): development and survival in gnotobiotic chickens.		1973	4632462
hatching and in vitro cultivation of the nematode ascaridia galli to the third-stage larva.		1973	4699866
the anthelmintic efficacy of mebendazole and tetramisole against ascaridia galli in chickens.		1973	4774074
[effect of some antibiotics on ascaridia galli in chickens].		1973	4802779
ascaridia galli: effects of immunosuppressive drugs or bursectomy in chickens.		1974	4207913
arrested development and the histotropic phase of ascaridia galli in the chicken.		1975	806547
anthelmintic activity of pyrantel tartrate against ascaridia galli in fowls.	at a dose of 15 mg/kg body weight, pyrantel tartrate was 18-51, 99-63, 100 and 100 per cent effective in chickens treated at 10, 20, 30 and 40 days respectively after infection with ascaridia galli. similarly, 25 mg/kg was 14-44, 100, 100 and 99-63 per cent effective.	1975	1144928
[tetramisol, piperazine, and metrifonate treatment of experimental invasion by ascaridia galli in chickens of differents ages].	the authors studied the anthelminthic effectiveness of a single peroral application of tetramisol (40 mg per 1 kg 1. w.), piperazine (500 mg per 1 kg 1. w.) and metriphonate (50 mg per 1 kg 1.w.) in the artificial invasion by ascaridia galli. a set of 118 chickens of the white leghorn breed were subjected to a single invasion by 3000 or 1500 invasive eggs at the age of 6, 36, and 48 days. the inteseffectiveness and extenseffectiveness of the treatment with the tested preparations were examined o ...	1976	826003
[composition of volatile fatty acids of ascaridia galli (schrank 1788) and their effect on eimeria tenella railliet et lucet 1891].		1976	1024139
energy and nitrogen metabolism of diseased chickens: interaction of ascaridia galli infestation and vitamin a status.	1. effects of ascaridia galli infection on the energy and nitrogen (n) metabolism were studied on groups of 5 cross-bred cockerels aged about 5 weeks and given a diet deficient or adequate in vitamin a at two levels of feeding in respiration chambers. 2. metabolisability of dietary energy was 67% and n retention 33% in infected chickens compared with 71 and 41% respectively, in uninfected chickens. 3. maintenance energy requirement of vitamin a-deficient birds was 882 kj/kgw d compared with 998 ...	1976	1245001
an evaluation of ethyl-6-ethoxybenzothiazole-2-carbamate (sch 18099) for anthelmintic activity in domestic animals.	ethyl-6-ethoxybenzothiazole-2-carbamate (sch 18099) was evaluated for efficacy against natural helminth infections in ponies, pigs, lambs and chickens. sixteen critical trials were conducted in ponies at dosages of 15 to 150 mg/kg. at 15 mg/kg, efficacy against adult and larval oxyuris equi was 100% and 91% and against small strongyles it was 98%. efficacy levels were 95% against strongylus vulgaris and s. edentatus at the 20 mg/kg dosage. in two trials at 100 mg/kg efficacy against parascaris e ...	1977	864223
ascaridia galli in broiler chickens.		1977	867762
[influence of ascaridia-galli invasion on amino acid, protein and aminotransferase (gop, gtp) levels and activities in chickens].	a negative influence of the helminths ascaridia galli on the level of free plasma amino acids and aspartate and alanine aminotransferase activities was demonstrated in the host chick serum. despite the above negative influence single experimental ascaridia galli invasion failed to influence the serum protein level or weight increments in chicks. at low invasion intensity the experimental chicks were able to compensate for the pathogenic effect of the helminth ascaridia galli, manifested by decre ...	1977	411227
[effect of the ph of ascaridia galli egg culture medium on the experimental infection in chickens].	1. a prolonged preservation of ascaridia galli eggs in acid medium when cultivating them under laboratory conditions inhibits considerably the establishment of ascaridia galli in the organism of chickens. the neutralization of medium of egg cultivation 3 days before their application for infesting facilitates the increase of larvae established in the organism. 2. in chickens invaded with ascaridia galli eggs cultivated in medium with ph 8.0, larvae develop in the period of 7--21 days of invasion ...	1978	32803
[facts that explain the host specificity of helminths].	extracts from larvae of trichinella spiralis, mature ascaridia galli and ascaris suum and blood sera of their possible hosts (rats, pigs, chicks, guinea pigs, mice and men) were investigated by the method of electrophoresis in polyacrylamide gel. the protein component was found to be most identical in helminth and its obligate host. the host specificity is supposed to depend on the community of the protein content of the parasite and its host. the data on the difference in protein spectra are gi ...	1978	643309
[action of anthelmintics on the lipid content in the tissues of chicks and ascaridia galli].		1979	452370
a case of adult ascaridia galli in hen's egg.		1980	7251264
efficacy of fenbendazole against helminth parasites of poultry in uganda.	fenbendazole 4% (panacur, hoechst) administered in feed was used to treat chickens infected with ascaridia galli, heterakis gallinarum and railletina spp. it was also used to treat syngamus trachea in broiler birds. there was a marked drop in helminth egg counts in the faeces on the second day of treatment and the faeces became negative by the seventh day after the last treatment. post-mortem examination 15 to 21 days later showed that the drug was 100% effective against ascaridia galli and hete ...	1982	6750887
3, 5-dibromo-2'-chloro-4'-isothiocyanatosalicylanilide, a potent anthelmintic.	the compound, 3, 5-dibromo-2'-chloro-4'-isothiocyanatosalicylanilide, has been tested against various nematode and cestode parasites in experimental and domestic animals. it shoved 100% activity against ancylostoma ceylanicum, a tubaeformis, syphacia obvelata, ascaridia galli, toxocara spp., toxascaris sp., gnathostoma spinigerum, hymenolepis nana, raillietina spp. and taenia spp. in doses 25-70 mg/kg given in single or multiple administrations.	1982	7084406
prevalence of helminth parasites of domestic fowl (gallus domesticus) in uganda.	a survey of helminth parasites of domestic fowl carried out in uganda between 1977 and 1980 showed a high prevalence in both broiler and local poultry. nematodes especially ascaridia galli and heterakis spp. were most prevalent in both groups of birds. syngamus trachea and capillaria spp. also occurred in both groups. strongyloides avium was found only in broiler birds and gangylonema ingluvicola only in local birds. railletina spp. were the only cestodes found and their prevalence was high in b ...	1982	7157477
protofilament number in microtubules in cells of two parasitic nematodes.	the parasitic nematodes, ascaridia galli and trichostrongylus colubriformis, were prepared for electron microscopy with fixatives containing tannic acid, which allowed their microtubule protofilament number to be examined. in contrast to many mammalian tissues, the nematodes did not contain microtubules with 13 protofilaments. ascaridia galli contained microtubules with 11 protofilaments in all tissues examined, including nerve, intestinal, pharyngeal, and hypodermal cells. trichostrongylus colu ...	1983	6687065
monoamine oxidase in adult ascaridia galli.	monoamine oxidase (mao), catalysing oxidative deamination of biogenic monoamines, has been detected in adult ascaridia galli. mao was present in mitochondria and deaminated noradrenaline at the maximal rate, although serotonin, adrenaline, tyramine and dopamine were also degraded but more slowly. of the organs studied, the body wall, female reproductive organ and intestine, the body wall (containing neuronal structures) showed highest mao activity. km value for chick ascarid mitochondrial mao us ...	1983	6668418
flubendazole: safety regarding egg production and reproductive performance of breeder chickens.	in a comparative field trial, 5,950 meat breeder chickens were medicated via feed for 7 consecutive days with 60 ppm of the anthelmintic flubendazole. this treatment cured the birds of an infection with ascaridia galli and capillaria obsignata. a slight but transitory diarrhea was observed in treated chickens. the applied medication did not unfavorably affect egg production, fertility, or hatchability.	1983	6847549
connections between ascaridia galli and the bacterial flora in the intestine of hens.	parasitological dissections of 502 intestinal tracts of hens deriving from big private chicken-farms have been done. in the jejunum of 146 hosts (ext. 29.1%) from 1 to 21 individuals of a. galli were detected. using bacterial selective media and biochemical tests, the microorganisms from the hen's intestinal tracts as well as from the cuticle surface of the nematodes were identified. among them were: grampositive (+) lactobacillus, bacillus, staphylococcus, streptococcus, micrococcus, sarcina, c ...	1985	4061960
dose-titration of fenbendazole in the treatment of poultry nematodiasis.	broiler chickens were fed ad libitum diets containing fenbendazole at various concentrations and durations for the removal of adult ascaridia galli, heterakis gallinarum, and capillaria obsignata. all regimens were 100% effective against a. galli. fenbendazole at doses of 80 ppm for 3 days and 48 or 30 ppm for 5 days was 100% effective against h. gallinarum. c. obsignata was not removed completely by any regimen, but greater than or equal to 95% effectiveness was seen in birds given fenbendazole ...	1986	3814008
establishment of ascaridia galli in betamethasone-treated chickens.	twenty-five day-old white leghorn chickens were each infected orally with 500 (group i), 1000 (group ii) and 2000 (group iii) infective eggs of ascaridia galli and were killed 30 days after the infection. a high percentage of the infecting dose (6.5%) established as adult worms in the intestine of chickens receiving the lowest level of primary infection, but as the amount of primary infection given to birds increased, there was a significant fall in the percentage establishment of adult worms in ...	1987	3629904
effect of parbendazole and piperazine adipate on the activity of some enzymes of ascaridia galli and heterakis gallinae.	adult ascaridia galli and heterakis gallinae obtained from the fowl (gallus gallus) were treated in vitro with 10(-2) to 10(-5) m parbendazole and piperazine adipate for 10-60 min at 38 degrees c. both the compounds at 10(-2) m caused mortality of a. galli and h. gallinae after a maximum of 30 min exposure. the effect of the drugs on the homogenates of the treated worm was investigated. parbendazole (10(-2) m) inhibited malate oxidation by 68% in a. galli and 62% in h. gallinae. piperazine adipa ...	1987	3617427
effect of irradiated ascaridia galli eggs on growth and cell-mediated immune responses in chickens.	growth and cell-mediated immune (cmi) responses were studied in 7-day-old chicks given orally 1000 irradiated (12.5 kr) or normal infective eggs of ascaridia galli. chicks immunised with irradiated eggs showed normal weight gains. cmi responses, as assessed by dinitrofluorobenzene (dnfb)-induced contact and delayed hypersensitivity reactions, were enhanced in the immunised group as compared with healthy controls, suggesting stimulation of cmi responses due to irradiation of a. galli eggs. cmi as ...	1988	3388731
increased susceptibility of lead exposed chickens to experimental infection of ascaridia galli.	two sets of one day old, white leghorn (victoria strain) chickens were each orally exposed to 1.0 mg lead nitrate daily for 7 days and subsequently infected with 15 and 30 a. galli eggs. these experimental chickens exposed to lead harboured significantly greater worm burden when compared to unexposed controls leading strong support to the view that lead exposure significantly suppressed their immune response to a. galli infection. it also indicated that exposure of lead prior to infection greatl ...	1989	2809179
the effect of levamisole and albendazole on some enzymes of ascaridia galli and heterakis gallinae.	ascaridia galli and heterakis gallinae obtained from the common fowl gallus gallus were exposed to 10(-2)-10(-5)m levamisole and albendazole; both compounds caused death of the parasites in vitro. the effect of the drugs was investigated on homogenates of the treated worms. albendazole, at 10(-2)m, inhibited oxaloacetate reduction by 67 and 53% and malate oxidation by 21 and 17% in a. galli and h. gallinae, respectively, whereas 10(-4)m levamisole completely inhibited malate dehydrogenase activi ...	1989	2705287
anthelmintic activity of ivermectin against experimental ascaridia galli infection in chickens.	the efficacy of ivermectin against ascaridia galli infection was evaluated in chickens under controlled laboratory conditions in two separate experiments. in each experiment 22 white leghorn chicks were randomly assigned to three groups of 10 (infected-treated), 9 (infected-control) and 3 (uninfected-control) birds. each bird in the former two groups was orally infected with 1,500 embryonated a. galli eggs. the chicks in the treated group were subcutaneously injected with ivermectin at a dose of ...	1990	2267731
[the influence of an infective dose and the duration of infection with ascaridia galli on trypsin and alpha-amylase activity in the pancreas of chickens fed with diets of different protein levels].	the studies were carried out on the chickens given the diet containing 19% and 11% of protein. on the 7th day of their life one part of the chickens were infected with different doses (125-500) of invasive eggs of ascaridia galli. the other part of the birds were infected with 500 eggs of a. galli and the invasion lasted from 5 to 49 days. in the extracts from pancreas the activities of trypsin and alpha-amylase were measured. no differences were observed between trypsin activity of control and ...	1991	1844784
some pathological and biochemical studies on experimental ascaridiasis in chickens.	during studying the pathogenicity of ascaridia galli for young ross-broiler chickens fed with single doses of 100, 200 and 500 infective eggs, it was found that the infected chickens showed variable decreases in body weight gain and increases in the ratio of liver weight relative to body weight when compared with the control. both decrease and increase was proportionally related with the number of infective eggs given to the chickens. biochemical analysis of muscle and liver tissue of the previo ...	1991	1865892
helminth parasitism of domestic fowl (gallus domesticus l.) in a subtropical high-rainfall area of india.	an investigation into the helminth parasitic infections of domestic fowl in a subtropical area of india, based on an autopsy of 532 chickens, revealed a 90.9% prevalence of infection. 10 species of helminths were encountered, of which capillaria contorta was recorded for the first time from fowls in india. ascaridia galli was the most prevalent species, followed by raillietina spp. and heterakis gallinae. the infection by trematodes appeared to be very rare. the helminth fauna of fowls in this c ...	1991	1930108
a new anthelmintic cyclodepsipeptide, pf1022a.	the novel anthelmintic cyclodepsipeptide pf1022a was isolated from cultured mycelia of mycelia sterilia pf1022 (ferm bp-2671). it showed strong anthelmintic activities against ascaridia galli in chickens. the structure of pf1022a was determined to be cyclo(d-lactyl-l-n-methylleucyl-d-3-phenyllactyl-l-n-meth ylleucyl-d-lactyl-l-n- methylleucyl-d-3-phenyllactyl-l-n-methylleucyl) by spectroscopic analyses and chemical studies.	1992	1624372
scanning electron microscopy of ascaridia galli (schrank, 1788), freeborn, 1923 and a. columbae (linstow, 1903).	the morphology of the two ascaridoid nematodes ascaridia galli and a. columbae was studied by scanning electron microscopy. the two nematodes were compared together and their specific characteristics were established, including lips, cephalic papillae, body cuticle, spicules and caudal papillae of the male.	1994	8077754
a survey into the prevalence of poultry helminths in northwest arkansas commercial broiler chickens.	a 12-month survey was conducted to determine the prevalence of poultry helminths in northwest arkansas commercial broiler chickens. intestinal tracts from market-ready broilers were collected weekly from two commercial broiler companies; a total of 3542 intestinal tracts were collected for parasite enumeration from 67 company a and 52 company b farms. ascaridia galli was found on 37.3% of company a farms and 3.9% of company b farms, raillietina cesticillus was found on 67.2% of company a farms a ...	1994	8002885
evaluation of three water-suspensible formulations of fenbendazole against ascaridia galli infection in broiler chickens.	three formulations of water-suspensible fenbendazole, at target doses of 30.3 or 60.6 ppm in the drinking water, were administered to broilers infected with ascaridia galli. the medication was administered in the water through automatic medicators for 6 hours on 3 consecutive days. three days after treatment, chickens were killed and their worms were counted. efficacy of fenbendazole was 99.2-100% and 69.0-89.6% at administration doses of 60.6 ppm and 30.3 ppm, respectively. worm burden and perc ...	1994	7980286
comparative anthelminthic efficacy and safety of caesalpinia crista seed and piperazine adipate in chickens with artificially induced ascaridia galli infection.	the antiascarid activity of caesalpinia crista linn. seeds, popularly known as karanjwa, was evaluated in chickens of the fumi breed, suffering from artificially induced ascaridia galli infection. eggs per gram (epg) counts were determined in the droppings of chickens prior and after treatment with powdered c. crista at doses of 30, 40 and 50 mg/kg of body weight along with its extracts in water and methanol in amounts representing 50 mg/kg of crude powder. the crude drug at the dose rates of 40 ...	1994	7810393
[activity of alpha-amylase, trypsin and lipase in pancreas and duodenal contents of ascaridia galli infected chickens fed with various proteins].	the study was carried out on astra s chickens which were grown on diets containing 11% and 19% proteins. in homogenized pancreas and duodenal contents from control animals and chickens infected with 500 invasive eggs of ascaridia galli activities of alpha-amylase (fennel method), lipase (cherry-crandall method) and trypsin (anson method) were determined. after 7 weeks of the invasion the activities of these enzymes were higher in duodenal contents and lower in pancreas of infected birds in compa ...	1995	7571639
content of some microelements in chickens with ascaridiasis under combined drug treatment.	the content of zinc, cobalt, and selenium in the intestinal wall of leghorn chickens infected with ascaridia galli was determined by nondestructive neutron-activation analysis. a comparison was made between the infected animals that were treated with piperathrine and those that were given microelements or those that did not receive microelements. age-dependent changes were found in the content of the microelements in the control groups. it is concluded that zinc, cobalt, and selenium are unevenl ...	1995	7479645
[effect of vitamin a and protein levels in the diet of chickens infected with ascaridia galli on activity of digestive enzymes in pancreas and small intestine].	hybrid chickens astra s fed vitamin a deficiency diet containing 11 or 19% protein were infected with 500 invasive eggs of ascaridia galli. one part of them received vitamin a in a dose corresponding to daily requirement, other part in double dose. after 7 weeks the extensity and intensity of ascaridiosis were determined. in pancreas and intestinal contents the activities of alpha-amylase, lipase and trypsin were measured. the invasion index was the highest in the group of chickens fed the prote ...	1995	8834507
the gastro-intestinal helminth infections of domestic fowl in dschang, western cameroon.	three hundred and fifty one chickens purchased from the dschang animal market were examined for gastro-intestinal helminths. ten species were found with the following prevalences: heterakis brevispiculum (59.3%), ascaridia galli (51.6%), hymenolepis carioca (48.4%), dispharynx spiralis (20.8%), tetrameres americana (17.1%), amoebotaenia cuneata (15.1%), raillietina tetragona (14.5%), syngamus trachea (13.7%), hymenolepis cantaniana (5.7%) and capillaria contorta (2.0%). infections were predomina ...	1995	8552845
[the influence of various levels of carotene and protein in the diet on the index of invasion and digestive enzyme activity in chickens infected with ascaridia galli].	chickens 10 days old were infected with 500 eggs of ascaridia galli. they were fed with diet containing 11% or 19% protein. some of them were given beta-carotene in a dose equivalent to daily requirement of vitamin a, others were given double dose of beta-carotene. the intensity and extensity of invasion, the body weight, and activities of alpha-amylase, lipase and trypsin in pancreas and duodenal content were measured. application of beta-carotene (especially in a double dose) caused the decrea ...	1996	8755147
ascaridia galli populations in chickens following single infections with different dose levels.	in all, 3 groups of 20 lohman brown chickens aged 1 day were orally infected with doses of 100, 500, or 2,500 embryonated ascaridia galli eggs, respectively. after 8 weeks, egg counts (eggs per gram of feces, epg) were determined for all animals prior to slaughter. the gastrointestinal tracts were examined for the presence of adult and immature stages of a. galli. all groups had roughly similar worm burdens and, hence, significantly different establishment rates of 14.2%, 2.9%, and 0.5%, respect ...	1997	9211515
a cross-sectional study of helminths in rural scavenging poultry in tanzania in relation to season and climate.	a cross-sectional study on the prevalence of helminths in rural scavenging poultry on six hundred adult chickens selected randomly from six villages in the morogoro region, tanzania during the wet and the dry seasons, was conducted. the trachea and gastrointestinal tract of each bird were examined for the presence of parasites. all chickens were infected with one or several species of helminths, the average being 4.8 +/- 1.7 helminths per chicken during the wet season and 5.1 +/- 1.8 during the ...	1997	9271471
ascaridia galli infections in free-range layers fed on diets with different protein contents.	1. one hundred and twenty 17-week-old lohman brown hens were divided into 4 groups. groups 1 and 3 were given a diet with 180 g protein/kg and groups 2 and 4 were given a diet with 140 g protein/kg. groups 1 and 2 were orally infected with 500 (+/- 50) embryonated ascaridia galli eggs. 2. marked differences in mean weekly weight gain for the 4 groups were observed. 3. hens given 140 g protein/kg had a significant lower mean worm burden of adult a. galli worms and a significant lower weight gain ...	1998	9693829
parasites influence social rank and morphology, but not mate choice, in female red junglefowl, gallus gallus.	parasites can profoundly affect host morphology and behaviour, but previous work has focused on the effects of parasites on males. in the present study, we assessed the effects of infection with the nematode ascaridia galli on the morphology and behaviour, including mate choice, of female red junglefowl. hens infected with a. galli had lower mass and smaller combs than unparasitized birds when sexually mature. parasite status had a significant effect on social rank in all-female flocks, with hig ...	1998	9787041
studies on ascaridia galli in chickens kept at different stocking rates.	the development of ascaridia galli infections was investigated over a period of 378 days in parasite naive chicken flocks ('permanent flocks') kept at different stocking rates and infected by introducing previously infected chickens (seeder birds). the results of this study indicated that differences in stocking rate may lead to different levels of establishment of a. galli infections in chickens. furthermore, significantly higher weight gains were seen in the medium stocking rate (msr) group th ...	1998	18484016
a kinetic model for ascaridia galli populations in chickens treated with mixed salts of copper and zinc.	the action of mixed salts of copper and zinc (basic and neutral) on hisex chickens experimentally infected with ascaridia galli has been studied. the data show that the lowest host mortality and decrease in body weight gain and the highest reduction in nematode loading occurs in infected chickens treated with basic salts (in comparison with infected chickens, untreated or treated with neutral salts). a mathematical model has been proposed to provide a quantitative interpretation of the observed ...	1999	10431370
prevalence of gastrointestinal helminths in different poultry production systems.	a cross-sectional prevalence study of gastrointestinal helminths in danish poultry production systems was conducted on 268 adult chickens selected at random from 16 farms in denmark from october 1994 to october 1995. the trachea and the gastrointestinal tract of each bird was examined for the presence of helminths. in the free-range/organic systems the following helminths were found: ascaridia galli (63.8%), heterakis gallinarum (72.5%), capillaria obsignata (53.6%), capillaria anatis (31.9%) an ...	1999	10579399
helminth parasites of indigenous chickens in oodi, kgatleng district, botswana.	thirteen adult indigenous chickens from oodi, kgatleng district, botswana, were examined for helminth parasites. two species of nematodes, ascaridia galli and heterakis gallinarum, and species of the cestode genus raillietina, were recovered. a. galli and h. gallinarum were the most commonly seen parasites. the nematode a. galli occurred concurrently with raillietina spp.	2000	11212938
prevalence and distribution of gastro-intestinal helminths and haemoparasites in young scavenging chickens in upper eastern region of ghana, west africa.	we conducted a cross-sectional study to determine the prevalence and species of gastro-intestinal helminths and haemoparasites in 100 chickens kept under extensive management systems in ghana, west africa. all the examined chickens (100%) were infected with gastro-intestinal helminths; a total of 18 species were detected. the species and their prevalences were: acuaria hamulosa (25%), allodapa suctoria (20%), ascaridia galli (24%), capillaria spp. (60%), choanotaenia infundibulum (13%), gongylon ...	2000	10821963
effect and repeatability of ascaridia galli egg output in cockerels following a single low dose infection.	three groups of caged 20 tetra-sl cockerels aged 1 day were orally infected with 30, 60 or 125 embryonated ascaridia galli eggs. after 11, 12 and 13 weeks, faecal egg counts (fecs) were determined. all birds were slaughtered after the last sampling. a group of 25 control birds was sampled and slaughtered in parallel. the gastrointestinal tracts were examined for the presence of adult stages of a. galli. a random sample of 10% was also examined for the presence of immature stages of a. galli. the ...	2001	11267756
genetic resistance to ascaridia galli infections in chickens.	ascaridiosis is still a cause of economic losses in modern poultry production systems. improving genetic resistance to this disease provides an attractive alternative for free-range organic poultry producers and will eventually reduce the extensive use of anthelmintic drugs. an experiment was conducted to compare resistance to ascaridia galli infections in lohman brown (lb) and danish landrace (dl) chickens. a self-cure mechanism to a. galli infections was observed in both breeds. however, signi ...	2001	11705656
study of gastro-intestinal helminths of scavenging chickens in four rural districts of amhara region, ethiopia.	a total of 267 rural scavenging chickens were examined from october 1998 to august 1999 in four woredas (districts) of the amhara region, ethiopia. of these chickens, 243 (91.01%) were found to harbour one to nine different helminth parasites and 24 (8.99%) were free of helminth parasites. a significant difference (p < 0.01) was found between the prevalence rates of helminth parasites in the different agro-ecological zones; the highest prevalence was observed in the lowland areas. this suggests ...	2001	11732422
genetic differences of ascaridia galli egg output in laying hens following a single dose infection.	groups of 20-week-old white (lohmann lsl) and brown (lohmann brown) hens were reared under helminth-free conditions and both divided into two subgroups. one subgroup was artificially infected with 250 embryonated ascaridia galli eggs, the other subgroup were kept as uninfected controls. during the following 12-month laying period individual faecal ascaridia egg counts (fec) were performed and bodyweight measured at monthly intervals. laying performance and egg weights were determined daily. the ...	2002	11751005
the effect of plasmodium gallinaceum on a challenge infection with ascaridia galli in chickens.	the effect of a primary infection with the haemoparasite plasmodium gallinaceum on the establishment of a challenge infection with the nematode ascaridia galli in chickens was studied. four groups were infected as follows. group 1: inoculated intravenously with 10(6) p. gallinaceum-infected erythrocytes on day 0; group 2: orally infected with 500 embryonated a. galli eggs on day 10; group 3: infected with p. gallinaceum on day 0 and a. galli on day 10; and group 3: non-infected control birds. th ...	2002	11879963
the effect of concurrent infections with pasteurella multocida and ascaridia galli on free range chickens.	pasteurella multocida and ascaridia galli are observed with high prevalences in free range chickens in denmark, but the impact is unknown. a study was carried out to examine the interaction between a. galli and p. multocida in chickens and the impact on production. five groups, each with 20 18-week-old lohmann brown chickens were infected. group 1 was orally infected with 1000+/-50 embryonated a. galli eggs. group 2 received 10(4) cfu p. multocida intratracheally. group 3 was infected with a. ga ...	2002	11955781
optimal treatment of ascaridia galli-infected chickens with salts of trace elements and a kinetic model for chicken growth.	data from seven experiments with ascaridia galli-infected chickens have been considered. the results of treatment with neutral and basic copper, zinc and copper-zinc salts and inorganic and organic manganese compounds have been compared. an optimal therapy, containing a pure cu basic salt (cu2(oh)3cl) and an organic mn compound (2gly.mncl2.2h2o), is proposed to correct mineral deficiencies and pathological symptoms and to ensure lower mortality and higher gains in body weight. a mathematical mod ...	2002	12018201
a comparison of the prevalence and burdens of helminth infections in growers and adult free-range chickens.	matched samples of 100 chickens of each of growers and adult rural free-range chickens in morogoro, tanzania, were purchased from the beginning to the end of the long rainy season. at necropsy, the trachea, the gastrointestinal tract and the oviduct were examined for helminth infections. the helminth species isolated comprised 18 nematodes and 8 cestodes but no trematodes. tetrameres fissispina is a new record in tanzania. all the chickens harboured at least three different helminth species. gro ...	2002	12094676
ecto-, endo- and haemoparasites in free-range chickens in the goromonzi district in zimbabwe.	a cross-sectional study determined the prevalence of ecto-, endo- and haemoparasites in free-range chickens from the goromonzi district, zimbabwe. fifty young and 50 adult birds were selected randomly. all chickens harboured ecto- and endoparasites, and 32% were infected with haemoparasites. eight different ectoparasites were identified; the more prevalent ones had the following prevalences (young, %; adult, %): argas persicus (6; 14), cnemidocoptes mutans (6; 32), echidnophaga gallinacea (72; 7 ...	2002	12114010
effect of different contents of proteins and vitamin b2 in the feed on the prevalence and infection intensity of ascaridia galli in chickens.	a group of 10-day-old chickens was experimentally infected with a dose of 500 infective eggs of ascaridia galli (schrank, 1788) (nematoda). forty-nine days post infection the chickens were necropsied and the infection intensity and prevalence were determined. the group maintained on the feed containing 11% of protein showed higher infection intensity and prevalence compared to the chickens fed a diet containing 19% of protein. the addition of vitamin b2 to the feed containing 11% protein resulte ...	2002	16894722
the effect of cobalt compounds on uninfected and ascaridia galli-infected chickens: a kinetic model for ascaridia galli populations and chicken growth.	the effect of dietary cobalt from three different sources on uninfected and ascaridia galli-infected hisex chickens, has been studied. the chicken diet was supplemented with 0.06 co2+ kg-1 food either in the form of two glycine-cobalt compounds or mixed zinc-cobalt basic salt. an excess of dietary cobalt in small doses increases the gain of body weight and decreases host mortality. a greater bioefficiency of cobalt was established in infected chickens. a mathematical model has been used to provi ...	2002	12498634
comparative genetic resistance to ascaridia galli infections of 4 different commercial layer-lines.	1. the objective of the study was to compare the establishment and effect of asaridia galli infections in 4 different layer-lines. 2. a total of 160 birds comprising 4 different commercial layer-lines, isa brown, new hampshire, skalborg and a cross of new hampshire(nh) and skalborg (sk), were infected with a. galli eggs. the birds were examined for the presence of parasite eggs and parasites at weeks 3, 6 and 9 post infection (pi). 3. at week 6 pi the chickens of the nh line harboured more larva ...	2003	12828202
investigations on the influence of helminth parasites on vaccination of chickens against newcastle disease virus under village conditions.	prevalence studies have shown that almost 100% of free-range chickens are infected with a wide range of parasites. the infections are mostly subclinical in nature, resulting in production losses and occasionally mortality. newcastle disease (nd) on the other hand, results in high mortality rates during epidemics. nd is a limiting factor for increasing poultry production in many tropical countries, where frequent reports indicate vaccination failures. the aim of our study was to investigate the i ...	2003	14620586
effects of glycine-metal compounds on ascaridia galli-infected chickens expressed by a kinetic model.	the biogenic elements zinc, manganese and cobalt are essential for metabolic processes in animals. compounds of ngly.me2+a. mh2o (me2+=zn2+, mn2+, co2+; a=cl(-), so4(2-), n=1, 2; m=2, 5), as supplements in the diet, were used separately on different experimental groups of male hisex chickens to correct the mineral deficiency caused by ascaridia galli infections. an amelioration of body weight gain, reduction of mortality and restoration of trace element levels were estimated in infected chickens ...	2004	14972033
administration of zn-co-mn basic salt to chickens with ascaridiosis. ii. sex ratio and microelement levels in ascaridia galli and in treated and untreated chickens.	hisex chickens were infected with 1,450 embryonated ascaridia galli eggs and treated with a new synthesized basic mixed salt (zn(x)co(y)mn(1-x-y)) x (oh)6so4 x 2h2o). the worm burden was determined and sex ratios for a. galli of m:f = 1.4 and m:f = 2 in untreated and treated chickens, respectively, were found. a decrease in the mean establishment rate of a. galli in treated chickens was observed. the levels of zinc, cobalt and manganese were determined in liver and muscle of the host and in male ...	2004	15138802
administration of zn-co-mn basic salt to chickens with ascaridiosis. i. a mathematical model for ascaridia galli populations and host growth with and without treatment.	a newly synthesized basic mixed salt (zn(x)co(y)mn(1-x-y)) x (oh)6so4 x 2h2o) was administered to chickens with ascaridiosis. improvement in survival, gain in body weight (of 19.03%) and restoration of microelement content were observed in the treated chickens. an increase in the gain in body weight of 7.62% in uninfected treated chickens was also observed. the establishment of ascaridia galli populations in chickens, and chicken growth in control and infected hosts, untreated and treated, were ...	2004	15138803
host age only partially affects resistance to primary and secondary infections with ascaridia galli (schrank, 1788) in chickens.	two experiments were conducted to compare the effect of chickens' age on resistance to primary and secondary infections with ascaridia galli. in experiment i, three groups, each of 80 female lohman brown chickens, aged one day, one month, or four months were compared. within each group, 54 chickens were infected orally with 500 embryonated eggs and 26 were kept as non-infected controls. weights were recorded weekly and five chickens in each group were slaughtered every 2 weeks for worm counts. a ...	2004	15219363
a structure-activity study of the neuropeptide pf1, sdpnflrfamide, using the dorsal body wall muscle of the chicken nematode, ascaridia galli.	the action of a range of n terminally modified peptides structurally related to the nematode peptide pf1, sdpnflrfamide, has been investigated using a dorsal muscle strip preparation from the chicken nematode, ascaridia galli. acetylcholine contracts this muscle preparation in a concentration-dependent manner when applied in the range 1-100 microm with an ec50 value of 9 microm. these contractions are reduced in the presence of pf1 and its analogues, with a threshold effect of pf1 of around 1 nm ...	2004	15270251
helminth parasites in the intestinal tract of indigenous poultry in parts of kenya.	a study was carried out on 456 indigenous poultry intestinal specimens from various towns in kenya to determine the occurrence and distribution of helminth parasites in the intestinal tract of the birds. of the specimens examined, 414 had parasites whereas the remaining 42 had none, which is an infection rate of 90.78%. the main species of helminths found in the intestines were raillietina sp. (47.53%), heterakis gallinarum (21.33%), ascaridia galli (10.03%), strongyloides avium (9.96%), choanot ...	2004	15214699
influence of dermanyssus gallinae and ascaridia galli infections on behaviour and health of laying hens (gallus gallus domesticus).	(1) the effect of infections with dermanyssus gallinae (poultry red mite or chicken mite) and ascaridia galli (roundworm) on the behaviour and health of laying hens was investigated. (2) six groups of 15 pullets (isa brown) were kept in indoor pens from 18 weeks of age. two groups were artificially infected with d. gallinae, two groups with a. galli and two groups were kept as uninfected controls. the hens were observed for behavioural reactions and physiological changes (weight gain and various ...	2005	15835249