Publications

[use of crotonolactone in aeromonas infection of the carp].		1977	929929
ultrastructural and histochemical investigation of the terminal capillaries in the spleen of the carp (cyprinus carpio l.).	in the spleen of the carp arterial capillaries of a highly differentiated structure have been studied by light and electron microscopy. these capillaries share various structural characteristics with the sheathed capillaries (ellipsoids of schweigger-seidel) of higher vertebrates. the long arterial capillaries of the carp spleen are provided with cuboidal endothelial cells containing filaments approximately 7 nm in diameter. there is no basal lamina. the endothelial cells form various types of c ...	1977	421258
an electron microscopic study of the ultimobranchial body of the crucian carp (carassius carassius).		1977	917462
genetic polymorphism and isoenzyme patterns of lactate dehydrogenase in tench (tinca tinca), crucian carp (carassius carassius) and carp (cyprinus carpio).	isoenzyme patterns and the polymorphism of lactate dehydrogenase (ldh) were investigated in 3 fish species of family cyprinidae, i.e. tench (tinca tinca), crucian carp (carassius carassius) and carp (cyprinus carpio). the isoenzyme patterns were tissue and species specific. in crucian carp subunits with different electrophoretic mobility are present, which are genetically controlled from the b1, b2, a1, a2 and c loci, while the set of loci in carp is b1, b2, a, c1 and c2 and in tench b, a, c. th ...	1977	567944
[immunocytological localization of peptide analogs of alpha-endorphin in several neurons of the lateral nucleus tuberis of carassius auratus l. and cyprinus carpio l].	neurons of the pars lateralis of the n.l.t. of carassius auratus and cyprinus carpio display a positive immunocytological reaction with an anti alpha-endorphin serum. it is assumed that the peptides produced by these neurons are similar, if not identical, with alpha-endorphin, but their morphinomimetic properties have still to be established. peptides of this kind may participate in the regulation of pituitary functions.	1977	413644
vegetalising factor extracted from the fish swimbladder and tested on presumptive ectoderm oftriturus embryos.	vegetalising factor was isolated from swimbladder of crusian carp (carassius auratus) by solubilishing with 8 m urea the precipitate obtained after digesting the swimbladder with collagenase. the urea-soluble fraction vegetalised isolated presumptive ectoderm oftriturus gastrula and produced both undifferentiated mesodermal and endodermal cells. brief heating of the fraction changed its capacity to produce organised mesodermal tissues, such as notochord and somite, and the frequency of induction ...	1977	28304885
the connections of the trigeminal and facial motor nuclei in the brain of the carp (cyprinus carpio l.) as revealed by anterograde and retrograde transport of horseradish peroxidase.	the connections of the rostral and caudal parts of the trigeminal and facial motor nuclei in the carp were studied with the horseradish peroxidase technique. following ionophoretic peroxidase injections in these motor nuclei, retrogradely labeled cells were observed together with anterogradely labeled motor cell processes. several cellular areas in thalamus, cerebellum and medulla oblongata were shown to project to the v and vii motor nuclei. labeled cells were found in the inferior lobe and the ...	1977	903419
studies on ecophysiology of fish parasites: effect of trypanosome infection on the serum cholesterol levels of fishes.	serum cholesterol levels of six species of fresh water fishes were lowered due to trypanosome infection. the percentage of infection in the different species of hosts ranged from 3.27% in clarias batrachus to 16.66% in wallago attu. loss in serum cholesterol level was highest (42.39%) in the spiny eel mastocembelus armotus and lowest in the carp cirrhina mrigala (4.56%). thus hypocholesterolemia was evidently caused in the fishes by trypanosomes.	1977	906626
histological, immuno- and enzyme-histochemical investigations on the adenohypophysis of the urodeles, mertensiella caucasica and triturus cristatus and the caecilian, chthonerpeton indistinctum.	the pituitary glands of two urodelan species (mertensiella caucasica, triturus cristatus) and one one caecilian species (chthonerpeton indistinctum) were examined with histological (alcian blue, brookes' trichrome stain), enzyme histochemical (acid phosphatase, alpha-naphthylacetate-esterase, acetylcholinesterase) and immunofluorescence techniques (anti-carp gth, anti-ovine prolactin, anti-synthetic alpha-msh). in the pituitary gland of mertensiella and triturus six chromophilic cell types could ...	1977	340044
isolation and characterization of the three light chains from carp white muscle myosin.	myosin from carp white muscle contains two mol of "dtnb" light chain (mol. wt 17 500 daltons) and two mol of "alkali" light chains (mol. wt 25 000 and 16 400 daltons). the three light chains have been isolated in pure state and characterized by electrofocusing, ultraviolet absorption, amino acid analysis and tryptic peptide mapping. our results show a great homology between the two carp alkali light chains whereas lc2 seems chemically more different. but the homology of lc1 and lc3 is not so ext ...	1977	79371
identification of respiratory motor neurons in the carp and determination of their firing characteristics and interconnections.	motor neurons of the respiratory muscles of the carp, located in the medulla oblongata, are identified with a signal averaging technique. analysis of the firing characteristics of these neurons provides data on their activity patterns under different circumstances. the results show that, on the one hand, the number of spikes a motor neuron fires per respiratory cycle depends on the respiratory intensity, and can even be as low as one action potential per respiration. on the other hand, with cons ...	1977	200306
[inhibition of corticotropic function by administration of gaba in carp (cyprinus carpio l.)].	the intracardiac injection (50 microgram/g) of gaba to carps clearly inhibits the rise of the plasma cortisol level which occurs usually in response to the blood sampling manipulations. the inhibition starts thirty minutes after injection and lasts till the end of the experiment two hours later. the hypothesis that this neurotransmitter has a regulatory function on the corticotrop cells, especially on the excretion of acth has to be considered.	1977	200377
electro-mechanical noise in atrial muscle fibres of the carp.	steady membrane voltage fluctuations have been observed in atrial muscle fibres of the carp. these voltage fluctuations produce minute mechanical escillations, as revealed by an interference contrast microscope. the steady voltage fluctuations may be related to abnormal automaticity in the heart.	1977	891811
the effects of hypoxia and reoxygenation on force development in myocardia of carp and rainbow trout: protective effects of co2/hco3.	isometrically mounted and electrically paced myocardial ventricular strips of carp have a much higher capacity to develop force during severe hypoxia and to redevelop force after it than those of rainbow trout. when the concentrations of co2 and hco3-in the solutions surrounding the strips were increased together, such that ph remained constant, the force developed during hypoxia increased. the concentration of co2 was raised from 0-4%; that of hco3-from 0-25 mm. the effect was much more pronoun ...	1977	908909
physiology of host parasite relationship: effects on serum alkaline phosphatase levels of fish hosts parasitized by trypanosomes.	serum alkaline phosphatase levels of five species of fresh water fish hosts were altered by trypanosome parasites. the loss in enzymatic activity ranged from 3.91% to 69.91% in the five species of infected fishes as compared to normal level in the healthy hosts. the maximal reduction in the enzymatic activity caused by trypanosomes was observed in the herbivore carp fish cirrhina mrigala and the minimal loss in the fresh water shark wallago attu.	1977	906625
taste responses in the facial lobe of the carp, cyprinus carpio l.	single unitary discharges in the facial lobe of carp, cyprinus carpio l., were studied electrophysiologically in response to chemical stimulation of the chemoreceptors of the facial skin. of 258 neurons recorded, 95% were facilitated by taste stimuli and 5% were inhibited. according to responsiveness to the 4 basic tasting substances, the taste neurons were classified into 5 types: type i which was activated by one stimulus (43% of total neurons), type ii by two (35%), type iii by three (12%), t ...	1977	884525
tectal afferent neurons identified by the retrograde hrp method in the carp telencephalon.		1977	69474
supplementation of a semipurified casein diet for catfish with free amino acids and gelatin.	semipurified diets with casein as the sole protein source were supplemented with gelatin, arginine, cystine, methionine or tryptophan, and fed to channel catfish (ictalurus punctatus) fingerlings. increasing the arginine level from 1.1% to 1.7% of diet by the isonitrogenous substitution of gelatin for casein resulted in a significant enhancement of growth. however, the addition of free arginine, cystine, tryptophan or methionine to casein had little effect on growth or food conversion. these dat ...	1977	874559
interactive effect of chromium compounds and a fungal parasite on carp eggs.	a fungal parasite (saprolegniales) of carp eggs was exposed to hexavalent and trivalent chromium compounds at concentrations identical to those used in a study of the effects of the same compounds on carp eggs hatchability. comparison of data from both experiments revealed that increased egg mortality and increased fungal growth were cooupled at low concentrations of the compounds. a mechanism for the interaction of a chemical stress and a biological stress on carp egg survival in natural system ...	1977	560230
the use of regression methods to study genotype-environment interactions: extending griffing's model for diallel cross experiments and testing an empirical grouping method.	a model combining features of griffing's diallel cross analysis with regression analysis for genotype-environment interactions is introduced using carp data of moav et al. (1975) as an example. an analysis of variance based on this model provides information on the combining abilities of genetic effects and the interactions of these effects with environments from which inferences can readily be made on heterosis and heterosis-environment interactions. applying the empirical grouping method of li ...	1977	268315
organization of purpine degradation in the liver of a teleost (carp; cyprinus carpio l.). a study of its subcellular distribution.	carp liver was fractionated by differential and density gradient centrifugation and assayed for enzymes of purine catabolism. while urate oxidase is an exclusively peroxisomal enzyme, only a very small percentage of the enzymes xanthine oxidase, allantoinase and allantoicase is associated with subcellular or ganelle fractions. there is no general purine catabolizing subcellular compartment. there is some but not yet conclusive evidence for the assumption that urate oxidase is a membrane bound en ...	1977	18664
deep freezing of carp cyprinus carpio l. sperm.		1977	890530
histone 5 from carp erythrocytes.	histone 5 (h5) has been isolated from carp (cyprinus carpio) erythrocytes and identified by its amino acid composition. it was found in very small relative amounts, despite the use of either 50 mm sodium bisulfite or 1.0 mm phenylmethylsulfonyl fluoride to inhibit endogenous protease activity. carp h5 differed significantly from h5's of other lower vertebrates in its amino acid composition, position of elution from amberlite cg-50 ion-exchange columns, and its unusually high electrophoretic mobi ...	1977	870148
[examination of muscular and liver tissues of fish for the presence of aflatoxin b 1].	a method of the determination of aflatoxin b1 in the liver and muscular tissue of carp is described, enabling the capture of 50 ng in one kilogram. extraction and purification were followed by thin-layer chromatography and by identification by means of ultraviolet light with simultaneous comparison with the standard. the examination was performed with 44 samples coming from healthy table carp from the pohorelice farm of the state fisheries national corporation. none of the 44 the pohorelice farm ...	1977	408965
[spring disease of the carp in the fish ponds of crimea].		1977	145071
[electron microscopic study of the peptidergic neurosecretory cells of the preoptic nucleus of carp].	the preoptic neurosecretory cells (nsc) in sexually mature female cyprinus carpio l. have been studied with electron microscope in winter. separate weakly differentiated nsc and differentiated nsc of small and mean size are localized in the ventral part of nucleus preopticus. the big highly differentiated nsc are mostly localized in the dorsal part of nucleus preopticus. among these types of the cells are established the light and dark forms. the "picnomorphic" cells are found only in the dorsal ...	1977	883023
toxicity of pesticides to embryonic stages of cyprinus carpio communis linn.		1977	562315
spreading depression in isolated carp retina.	(1) spreading depression (sd) could be elicited in isolated carp retina by kci application, the concomitants of which were similar to those described in other vertebrates. (2) the threshold for generating sd was greatly reduced by brief immersion of the retina in low ci-ringer's solutions. the properties of sd waves were almost the same with treated and untreated retinas, except for intervals. (3) extracellular negative potential shifts during sd, averaging 4.6 mv in amplitude and 27 sec in dura ...	1977	832120
[brain organization of amia, lepisosteus and polypterus: comparative morphology and quantitative analysys].	the quantitative study of the brain of amia, lepisosteus and polypterus leads to results which are compared to those previously got on the sturgeon and three species of tleosts (the rainbow trout, the carp and the ballan wrasse). the volumetric analysis has been applied at first to the whole brain (encephalization indices) and later to the main subdivision of the brain: telencephalon, diencepahlon... (relation indices and relative volumes). some result are discussed in regard to the various opin ...	1977	894016
isolation and electron microscopy of a rhabdovirus from the acute form of infectious dropsy of carp (spring viraemia of carp).		1977	878734
[size of eggs and larvae of female carp of different ages under normal conditions and following exposure to an elevated dose of zinc sulfate].		1977	871476
subcellular distribution of purine degrading enzymes in the liver of the carp (cyprinus carpio i.).		1977	855707
[starvation metabolism in carp].		1977	844756
[increments of body composition in carp receiving feed of various protein contents].		1977	844754
[rhythmic activity in the retina of fish evoked by adequate stimulation].	distribution of evoked rhythmical responses over the retinal surface and depth was investigated in carp and tench by recording the local electroretinogram and spike activity of ganglion cells. the dependence of the response amplitude-frequency characteristics upon the stimulus intensity and duration was also studied. the rhythmical responses to light "on" and "off" stimuli differed in a number of features, particularly in patterns of their distribution among cellular and synaptic retinal layers. ...	1977	840330
[rhythmic activity of individual elements of the isolated carp retina].	at the level of photoreceptor, bipolar and ganglion cells of the carp isolated retina displayed intracellular oscillations of two types: with frequency of about 6-12 hz, continuously generated in darkness, suppressed by light and slowly recovering, and oscillations with frequency of about 20-50 hz, observed during swithching on and off of light. the latter are components of responses to light of bipolar, amacrine, and ganglion cells. possible role of different structures of the retina in generat ...	1977	832751
adaptive properties of the b-wave and the piii in the perfused isolated carp retina.	1. perfusion of isolated carp retina with a pure oxygen saturated standard solution used in this experiment permitted several continuous hours of erg recordings showing a distinctive b-wave as well as the piii isolated by sodium aspartate. 2. the dark-adapted threshold for the piii required an absorption of 5 to 6 quanta per rod. the 'rod-cone break' in the increment threshold curve for the b-wave was induced at a background intensity of about 2.0 x 10(-2) muw/cm2. 3. both the b-wave and the pii ...	1977	613094
[cell surface immunoglobulin of carp lymphocytes (cyprinus carpio l.)].	molecular size and polypeptide chain composition of cell membrane immunoglobulin (mig) on lymphocytes of carp were studied using lactopreoxidase-catalysed surface radioiodination and sds-polyacrylamide gel electrophoresis. carp lymphocytes prepared from pronephros, blood and thymus carry migm in relatively high quantity. that means about 5-10% of the radiolabelled macromolecular cell surface material precipitates as igm. cell surface igm on carp lymphocytes is present as monomeric igm (m.w. 2200 ...	1977	612094
morphology of the carp hypophysis (cyprinus carpio l.		1977	610487
the evolution of gonadotropins: some molecular data concerning a non-mammalian pituitary gonadotropin, the hormone from a teleost fish (cyprinus carpio l.).	the amino acid and sugar compositions as well as long n-terminal sequences and the c-terminal amino acids of the two subunits of carp gonadotropin, su i and su ii, were determined. an important homology was demonstrated between su i and alpha-subunits and between su ii and beta-subunits of mammalian gonadotropins. moreover su ii was more closely related to the beta-subunit of lh than to the beta-subunit of fsh.	1977	607993
ultrastructure of reorganising visual projections in half tecta of carp kept in constant light.		1977	593555
[microstructure characteristics of the egg envelopes of the carp, cyprinus carpio l].	the patterns of the microstructure of the egg envelopes in c. carpio and its changes during embryogenesis were studied by means of scanning electron microscope. the structure of envelopes was shown to suffer definite changes during the formation of perivitelline space, embryogenesis and prior to hatching.	1977	559994
[influence of a fish meal-free dry food on body composition of carp].		1977	557432
non-cooperative ca(ii) removal and terbium(iii) substitution in carp muscle calcium binding parvalbumin.	close coorelation of atomic absorption measurements for ca(ii) contents indicates that from ph 5.8-7.4 a twentyfold excess of egta1 removes but one of two ca(ii) from carp parvalbumin. thus binding of the two ca(ii) appears to be noncooperative. the maximum in emission intensity observed at a nonintegral 1.4-1.7 equivs of added tb(iii) is shown to be due to quenching by excess tb(iii). the emission intensity at the maximum increased 40% upon dialysis to remove tb(iii) not bound in the cd or ef s ...	1977	411523
[immunofluorescence study of the formation of evolutionary stable lens proteins in chick embryos].	in the lens of fishes (carp, spiny dogfish) beta-crystallins were identified which were characteristic also of reptiles, amphibians, birds and mammals (evolutionary stable beta-crystallins). the dynamics of the formation of such beta-crystallins in 5--14 days old chick embryos was studied by the indirect immunofluorescence method with antisera to fish lens. these proteins are reliably indentified first at the lens sections from 7--8days old chick embryos. at all stages under study these beta-cry ...	1977	406588
on the allosteric transition between the structures of high and low ligand affinity in carp hemoglobin.	the variation of magneto-optical rotatory dispersion with ph for carp deoxyhemoglobin in the presence and absence of inositol hexaphosphate was interpreted as a ph-induced allosteric transition between the structures of high and low ligand affinity (the r and t states in terms of the two state model of cooperativity). increasing the ph from 6 to 11 causes a decrease in the fraction of molecules in the t state from 1 to 0.65. in the absence of inositol hexaphosphate the ph dependence of this frac ...	1976	10981
[bothriocephaliasis in carp].		1976	1028295
[sanguinicoliasis in young carp].		1976	1028293
folding and stability of helical proteins: carp myogen.		1976	978728
effects of carp gonadotropin on ovarian maintenance, maturation, and ovulation in hypophysectomized catfish, heteropneustes fossilis (bloch).		1976	1010306
[receptor responses to amino acids recorded from the surface of the olfactory bulb].	spontaneous activity and evoked responses were studied in different parts of the carp olfactory bulb. application of 10(-3) gaba to the bulb surface elicited some or no changes in the patterns of activity, according to the site of application. this finding suggests the receptor's axons to be the source of activity recorded on the surface of rostral or middle bulb portions. during stimulation with 10(-2)--10(-9) m amino acids, a rapid increase in the spike activity occurred. the concentration-res ...	1976	1010066
preliminary study of the occurrence and distribution of ddt residues in the jordan watershed, 1971.	data obtained from the jordan watershed in 1971 revealed the presence of ddt and its metabolites at various levels along the food chain. detectable levels of sigmaddt in water of the jordan river and two fish ponds ranged from 0.019 to 0.500 ppb, which is 1/10 to 1/500 the maximum level permitted in water by the u.s. government. mean residue in phytoplankton was 0.906 mug/g; in zooplankton the mean was 6.49 mug/g. sigmaddt residue in fish of the jordan watershed averaged 0.37 mg/kg in carp, 2.59 ...	1976	1005067
preparation and properties of carp muscle parvalbumin fragments a (residues 1 leads to 75) and b (residues 76 leads to 108).	the calcium-binding protein (parvalbumin), isolated from carp (cyprinus carpio) muscle, has been specifically fragmented into two polypeptides by tryptic hydrolysis at the single arginine residue at position 75. fragment a contains residues 1 leads to 75 and fragment b is composed of residues 76 leads to 108. the fragments have been characterized according to size, amino acid composition, carboxyl- and aminoterminal analysis. both fragments appear to be homogeneous by these criteria. the intact ...	1976	999890
resonance raman spectra of liganded and unliganded carp hemoglobin in both r and t states.		1976	993506
the interaction between conditioned fish and naive schools of juvenile carp (cyprinus carpio, pisces).	in a circular experimental pool the behaviour of trained juvenile carp placed in naive schools of different size and of different behavioural motivation was studied. it could be shown that the time the trained fish needed to arrive at the feeding place was much shorter when it swam in a habituated school than in a frightened one. this is discussed as a result of the conflict between the conditioned reaction and the various levels of mutual attraction. in the same manner the time elapsing from cs ...	1976	24923748
genetic aspects of the transition from traditional to modern fish farming.	a theoretical model describing the genetic aspect of the transition from traditional to modern animal husbandry is presented. traditional races are characterized by high tolerance to harsh environments but a low rate of response to increased management inputs. modern, artificially-selected breeds are efficient convertors of management inputs to higher production but have a low resistance to harsh environments. thus, under lowinput traditional husbandry, the traditional races are best adapted, wh ...	1976	24414842
control of energy metabolism in fish white muscle.	concentrations of key metabolites were determined in carp white muscle before exercise and after maximal activity. it was found that the concentration of atp decreases by about 65%, adp decreases slightly, and amp remains unchanged. consequently, the level of the free adenylate pool decreases. simultaneously there is an increase in the concentration of imp and nh4+. the increase in imp level and the decrease in adenylate pool are essentially in 1:1 stoichiometry, a result showing that the adenyl ...	1976	131493
polymorphism of transferrin in carp (cyprinus carpio l.): genetic determination, isolation, and partial characterization.	seven transferrin variants (a,b,c,d,e,f, and g) have been found in carp sera (cyprinus carpio l.). genetic analysis involves five variants and agrees with the hypothesis of simple codominant autosomal inheritance at one transferrin (tf) locus in spite of the fact that the carp is a tetraploid in relation to other species of the same family. carp populations from three regions were studied which differed in gene frequencies. individual populations were in hardy-weinberg equilibrium. the polymorph ...	1976	1259703
[evoked potentials in the optic tectum of the carp brain upon electric stimulation of the facial nerve].	the evoked potentials in the carp tectum opticum in response to stimulation of the afferent pathway for chemical nonolfactory reception, the facial nerve, are positive deflections of 5-25 ms latency which do not reverse during microelectrode submersion. according to the evoked potential amplitude and latent period 7 active zones were distingnished in the ipsilateral tectum differing from each other either in one or in both parameters. the dependence of the response evoked by facial nerve stimula ...	1976	1264291
re-examination of horizontal cells in the carp retina with procion yellow electrode.		1976	1258385
stimulation of carp interrenal function by adrenocorticotrophin.	the effect of acth on cortisol concentration in the plasma of the carp has been studied; cortisol was determined using a competitive protein-binding radioassay. blood was sampled at 12.00 h (the diurnal minimum) by cardiac puncture. the plasma cortisol level of undisturbed carp (blood obtained 1--3 min after netting) was 16 +/- 14 (s.e.m.) ng/ml. one hour after injection of acth (1-0 i.u./100 g body wt., i.m.) the level of cortisol increased to 415 +/- 62 ng/ml and reached a maximum of 656 +/- 6 ...	1976	1255049
two-way selection for growth rate in the common carp (cyprinus carpio l.)	the domesticated european carp was subjected to a two-way selection for growth rate. five generations of mall selection for faster growth rate did not yield any response, but subsequent selection between groups (families) resulted in considerable progress while maintaining a large genetic variance. selection for slow growth rate yielded relatively strong response for the first three generations. random-bred control lines suffered from strong inbreeding depression and when two lines were crossed, ...	1976	1248737
histological study of coccidiosis caused in the silver carp and the bighead by eimeria sinensis chen, 1956.		1976	1032457
comparison of frequency characteristics of photopic and scotopic s-potentials in the carp.	frequency characteristics of photopic and scotopic l-type s-potentials were studied in the carp retina, using either an impulse or a sinusoidal light input superimposed on a steady background light of various intensities. the photopic type responses were faster than the scotopic responses if their frequency characteristics were compared without background illumination. however, the difference was not absolute. both types of responses became faster in the presence of background illumination. the ...	1976	1030747
[possibility of tissue accumulation and elimination of 3,4-benzpyrene from the bodies of fish].	one-year and two-year iridescent trout and two-year carp during different periods (from 2 months to 1 year) were given protein-vitamin addition to food containing 3,4-benz-pyrene (bp). the total amount of bp entering the organism of fish for the whole period of the experiment reached 12,6 mg/kg of fish weight in daily dosage ranging from 0.1 to 4.1 m/kg. in fish tissues bp was either not detected at all, or the content of the carcinogen in them did not exceed its amount in the control. in summer ...	1976	1014502
the peculiar structure of the dorsal aorta of carp (cyprinus carpio l.).	the authors describe the moniliform structure of dorsal aorta of the cyprinus carpio l., which has successive swellings and constrictions, strictly corresponding to each vertebra. they discuss the possible physiological significance of the unusual structure of the dorsal aorta.	1976	1010293
[demonstration of intercellular junctions between pigment epithelium and cones in the light-adapted retina of the carp (cyprinus carpio)].		1976	1007032
a seasonal study on the hemoglobins of carp (cyprinus carpio) and yellowfish (barbus holubi) in south africa.		1976	1000943
[accumulation and distribution of cesium-137 in the organs of carp].		1976	997249
comparative morphology, anatomy and histology of the alimentary canal of an indian freshwater major carp, labeo calbasu (hamilton) during the different life-history stages in relation to food and feeding habits.	1. the early life-history stages of labeo calcasu (hamilton) viz., the fries, are zooplankton-feeders (carnivorous). the morphology, anatomy and histology of the alimentary canal during this stage is adapted accordingly. 2. with increase in age, size and body-length, the food and feeding habits of the fish undergo changes from the carnivorous to the herbivorous type (adult) through the omnivorous type (fingerlung). 3. the morphology, anatomy and histology of the alimentary canal gets modified ac ...	1976	984436
[electrotonic interaction of secondary neurons of the carp olfactory bulb].	responses of the olfactory bulb secondary neurons provoked by olfactory tract electrical stimulation were studied in carp, using the intracellular recording technique. spike responses in most neurons were identified as antidromic. values of their latent periods ranged from 2.5 to 55 msec. in addition, two kinds of responses with a constant latent period were revealed: pseudoantidromic spikes and low-amplitude fast depolarizing potentials. it is supposed that both kinds of responses are generated ...	1976	980170
retinal projections in cyprinid fishes: a degeneration and radioautographic study.	the retinal projections of three species of cyprinid fish (cyprinus macrolepidotus, cyprinus carpio, rutilus rutilus) were examined with nauta and fink-heimer methods following enucleation and with radioautography following intraocular injection of [3h]-l-proline. optic tract axons cross completely in the optic chiasma and are distributed to the hypothalamus (nucleus opticus hypothalamicus pars magnocellularis), the thalamo-pretectal region (11 distinct primary optic centers), and the tectum opt ...	1976	974722
[arguliasis of carp].		1976	948857
heart rate and locomotor activity in fish: correlation and circadian and circannual differences in cyprinus carpio l.		1976	1269651
the gonadotropic cells in the pituitary of the black molly, mollienisia latipinna, and other teleosts, identified by the immunofluorescence technique in normal and androgen-treated animals.	using anti-carp-gonadotropic-gamma-globulin, the indirect immunofluorescence technique was applied to sections of the pituitary of 12 teleost species. from the investigated species, the poeciliinae, and especially the black molly, showed a distinct localization of fluorescent cells in the mesoadenohypophysis. strong fluorescence was observed in the ventralmost region, containing the presumed gonadotropic cells; weak fluorescence was observed in the dorsal region, in the presumed thyrotropic cell ...	1976	769990
distribution of selected metals in tissue sample of carp, cyprinus carpio.		1976	1268353
[ultrastructural organization and distribution of synapses of different size of the neurosecretory cells of the carp preoptic nucleus].	with electron microscope two types of synaptic buttons (sb) are found on the nuerosecretory cells (nsc) in the nucleus preopticus of the mature carp. sb type i contain dense core vesicles and synaptic vesicles, whereas sb type ii have only the latter. sb type ii is considered to be functionally more active. the density of sb on the nsc body surface varied inversely proportionally to the nsc size, being in average 1.7+/-0.2 on the section of one small nsc in the ventral part of the nucleus preopt ...	1976	951748
effect of rapid temperature change on mean body temperature and gill ventilation in carp.	carp were transferred from 25 degrees c water to a calorimeter at 15 degrees c or from 15 degrees c water to a calorimeter at 25 degrees c. during cooling, dorsal muscle temperature (tdm) and mean body temperature (tb) were continuously monitored. during the first minutes tb changed rapidly, while tdm changed only slightly. in a 0.468-dg fish, tdm decreased to two-thirds of the final value in 8.05 min, while tb attained this value in 3.6 min. tdm changed faster during heating than during cooling ...	1976	970464
further biochemical studies on carp gonadotropin (c-gth); biochemical and biological comparison of c-gth and a gonadotropin from acipenser stellatus pall. (chondrostei).		1976	955397
[studies on the hard tissues of the pharyngeal teeth of carp].		1976	1072931
light chains of carp and pike skeletal muscle myosins. isolation and characterization of the most anodic light chain on alkaline ph electrophoresis.		1976	1278404
biosynthesis of fatty acids by the carp, cyprinus carpio l., in relation to environmental temperature.	incorporation in vivo of sodium 1-14c-acetate into different lipid classes and fatty acids of total lipids and phospholipids of warm adapted and cold adapted carp livers was studied at 5 c and 22 c, respectively. the fatty acid composition of total lipids and phospholipids was also determined. the level of long chain polyunsaturated fatty acids in both total lipid and phospholipid fraction was higher in cold adapted fish than in warm adapted ones. the distribution of radioactivity among differen ...	1976	1271977
[comparative study of biological effect of purified gonadotropins of sturgeon (acepenser stellatus) and carp (cyprinus carpio)].	a comparison was made of the biological effect of purified gonadotropins of the sevryuga and the carp on the activation of adenyl cyclase in the homogenate of the goldfish ovary, the reaction of spermiation in two species of frogs, and the in vitro maturation of oocytes of two amphibian species and sevryuga. the ratio of specific activities of the preparations under study was shown to vary markedly with respect to test-subject and test-reaction. the data obtained suggest, thus, qualitative diffe ...	1976	934594
studies on glycogenolysis in carp liver: evidence for an amylase pathway for glycogen breakdown.		1976	10130
the survival of carp (cyprinus carpio) outside water.	the possible use of the swimbladder of carp as auxiliary respiratory organ when the animals are exposed to air has been studied. after exposure to air, blood ph and po2 and mean swimbladder o2 concentration decrease and blood pco2 increases in normal animals. exposure to air after ligation of the pneumatic ducts results in increases in blood ph and pco2 and decreases in blood po2 and swimbladder carbon dioxide concentration. possible reasons for these observations are discussed.	1976	8845
synaptic transmission from photoreceptors to bipolar and horizontal cells in the carp retina.	the most important observations in the present study can be summarized as follows: 1. in horizontal and bipolar cells, blocking chemical transmission caused membrane potential changes of the same polarity as the responses to illumination in each cell type. 2. acceleration of transmitter release from the receptor terminals depolarized the horizontal cells, which is the opposite polarity to the light response. 3. stimulation by transretinal current flowing from receptor side to vitreous side depol ...	1976	7385
a somatotopic and functional representation of the respiratory muscles in the trigeminal and facial motor nuclei of the carp (cyprinus carpio l.).	the place of the cells innervating six most important respiratory muscles in the carp (cyprinus carpio l.) were determined by means of the horseradish peroxidase technique. it was found that these muscles are represented in the rostral and caudal subdivisions of the trigeminal and facial motor nuclei. all connections were ipsilateral. the distribution of the various cell populations over the different subnuclei has been related to the function of the respective muscles in the respiratory cycle. ...	1976	1262554
effects of calcitonin and ultimobranchialectomy (ubx) on calcium and bone metabolism in the eel, anguilla anguilla l.	prolonged administration of synthetic salmon calcitonin (sct) to immature female silver eels, maintained in sea water, provoked a decrease of the serum calcium concentration and an increase of both the osteoblastic apposition and of the degree of mineralization of the intercellular matrix in the vertebral bone. the osteoclastic resorption and osteocytic osteolysis were not significantly affected, however the osteoclastic index was reduced. the ultimobranchial body, site of ct secretion, was caut ...	1976	1260486
thyroid follicles in the head-kidney of teleosts.	out of five species of fishes, selected for this investigation, only two have shown the presence of thyroid follicles in their head-kidneys. in tor tor the thyroid follicles are larger than those of cyprinus carpio. they are elliptical in shape in t. tor while spherical in c. carpio. the follicular epithelium in t. tor is thick and prominently built while in c. carpio it is weak in its appearance and structure. the colloid of the follicles in both the cases is uniformely homogeneous, non-vacuola ...	1976	984434
dependence of magneto-optical rotatory dispersion and magnetic circular dichroism of deoxy- and methemoglobin on their quaternary structure.	methods of magnetic optical activity, magneto-optical rotatory dispersion (mord) and magnetic circular dichroism (mcd), were shown to be sensitivie to the quaternary structure of deoxyhemoglobin. the isolated alpha and beta chains, the monomeric hemoglobins (leghemoglobin, fraction iii of chironomus thummi thummi hemoglobin) and hemoglobin in the r state (hemoglobin digested with carboxypeptidases a and b) exhibit in the visible region two mord minima of equal intensities. in native tetrameric h ...	1976	952896
the 18 p-syndrome. report of four cases.	four children, two girls and two boys, were found to have a short arm deletion of chromosome no. 18. three of them exhibit a typical dysmorphy of the face showing retraction of the midface, broad-based, flat nose, hypertelorism, epicanthus, "carp mouth", big, protruding, and low set ears, as well as a variable number of turner-like features, failure of growth, mental retardation, and muscular hypotonia. a newly born child, who died at 2 days of age exhibited severe brain defects of holoprosencep ...	1976	954771
[polymorphism of the median crochets of dactylogyrus vastator nyb., 1924 (monogenoidea) from the crucian carp, carassius carassius l].	there are some variations in the dimensions of anchors depending on the age of the host, localisation and number of parasites. to differentiate such close morphological species as d. vastator and d. crassus it has been suggested to take into account, in addition to taxonomic features, the correlation between the anchor ventroapical length and the bend.	1976	958727
spontaneous ovarian tumors in domestic carp (cyprinus carpio): light and electron microscopy.	massive abdominal enlargement was discovered in 8 adult carp (cyprinus carpio) 4-6 years old, living in breeding ponds of carp fisheries in northern japan. the abdominal enlargements rapidly progressed and the affected fish died within a few months. at necropsy, single or multiple tumors up to 20 cm in diameter were found in the abdominal cavities. ovarian tissue identified within the tumor capsule in 4 fish supported the impression, based on gross anatomic features, that the neoplasm arose in t ...	1976	978770
subunit dissociation in fish hemoglobins.	the tetramer-dimer dissociation equilibria (k 4,2) of several fish hemoglobins have been examined by sedimentation velocity measurements with a scanner-computer system for the ultracentrifuge and by flash photolysis measurements using rapid kinetic methods. samples studied in detail included hemoglobins from a marine teleost, brevoortia tyrannus (common name, menhaden); a fresh water teleost, cyprinus carpio, (common name, carp); and an elasmobranch prionace glauca (common name, blue shark). for ...	1976	1002703
fish swimbladder: an excellent mesodermal inductor in primary embryonic induction.	swimbladder of the crucian carp, carassius auratus, was found to be better as a vegatalizing tissue than other tissues, such as guinea-pig bone marrow, when presumptive ectoderm of triturus gastrulae was used as reacting tissue. swimbladder usually induced assemblies of highly organized mesodermal tissues, such as notochord, somites and pronephric tubules, some of which were covered by mesodermal epithelium without any epidermal covering. a special character of the effect of swimbladder was the ...	1976	1003076
seasonal variations in the histology of the pituitary gland of cirrhinus mrigala (ham.) an indian freshwater major carp, in relation to gonadal activity.	1. seasonal variations in the histology of the pituitary gland of cirrhinus mrigala (ham.), an indian freshwater major carp, in relation to gonadal activity has been studied during a one year period commencing, january, 1971. 2. the proximal pars distalis undergoes a great deal of seasonal variation in size, weight and nature of pituicytes. 3. the percentage composition of acidophils and cyanophils in the proximal pars distalis show a reciprocal relationship during the year. the acidophils predo ...	1976	1020417
[role of structural factor in the kinetics of free-radical oxidation of lipids in the membranes].	kinetics of free radical oxidation of lipids (formation of primary molecular products - hydroperoxides, secondary products - carbonyl substances and "fluorescent pigments") was studied in various membrane fragments, which were distinctly differentiated by their fatty acid composition. the non-enzymatic catalysis of lipoperoxidation in these systems was initiated by addition of fe2+ + ascorbic acid. the membrane fragments were isolated from microsomes and mitochondria of rat liver tissue, externa ...	1976	1030897
[changes in the composition of leukocytes of carp after infection with dactylogyrus extensus (monogenoidea, dactylogyridae) in the light of a new classification of formed elements].	the paper presents new data on the effect of dactylogyrus extensus on the blood of the carp. the data have become available due to a new classification of formed elements worked out by n.t. ivanova. one of characteristic features of dactylogyrosis is eosinophilia. polychromatophil anaemia and anisocytosis were recorded as well.	1976	1035418
evidence for species-specific substrate-site-directed inactivation of rabbit adenylate kinase by n6-(6-iodoacetamido-n-hexyl)adenosine 5'-triphosphate.	adenosine 5'-triphosphate (atp) derivatives bearing iodoacetylamino-n-alkyl substituents [(ch2)nnhcoch2i] on n6 were synthesized as potential atp-site-directed irreversible inhibitors of adenylate kinases from rabbit, pig, and carp muscle. when n was 5 no enzyme was progressively inhibited (inactivated) by 1 mm inhibitor under the test conditions (6 h at 0 degrees); when n was 6 the rabbit enzyme was 76% inactivated by 0.79 mm inhibitor whereas the pig and carp enzymes were unaffected by 2.76 mm ...	1976	187748
further observations upon the hemoglobin systems of thermally-acclimated freshwater teleosts: pumpkinseed (lepomis gibbosus), white sucker (catostomus commersoni), carp (cyprinus carpio), goldfish (carassius auratus) and carp-goldfish hybrids.		1976	4279