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carbohydrase activity in the digestive system of some teleost fishes.the activity of carbohydrases in puntius sophore (ham.), channa gachua (ham.) and cirrhinus mrigala (ham.) has been studied. the carbohydrases have been found in the stomach, intestinal bulb, intestine, pyloric caeca and the hepato-pancreas. the hepatopancreas is the main site of production of these enzymes and it is in this organ and the intestine that their activity is highest. their ph optimum lies between 5.4 and 6.4. the enzyme equipment in the teleost is adapted to their respective food an ...197520312
histochemical localization of alkaline and acid phosphatases in the alimentary tract of hatchling of a teleost fish, cirrhinus mrigala (hamilton). 1979226909
fluorescence microscopic studies on sulphomucous of the alimentary canal in an indian freshwater major carp, cirrhinus mrigala (hamilton) by ferric alum-coriphosphine and coriphosphine-thiazol yellow methode. 1978714255
micromorphology and the angioarchitecture of the hypothalamo-neurohypophysial neurosecretory complex of the teleost cirrhinus mrigala (ham.). 1978753174
a histochemical study of the mucous cells in the bucco-pharyngeal region of four indian freshwater fishes in relation to their origin, development, occurrence and probable functions.observations on the origin, development and occurrence of mucous cells in the bucco-pharyngeal region of labeo rohita (ham.), cirrhinus mrigala (ham.), catla catla (ham.) and clarias batrachus (linn.) have been made histochemically, by pas technique. the mucous cells have been found to develop from ordinary epithelial cells of the stratum malpighii which is situated immediately above the basement membrane. the different stages in the development of mucous cells are: 1. formation stage: some of t ...1975811054
histochemical study of the activity of acid and alkaline phosphatases and lipase in the gastro-intestinal tract of cirrhinus mrigala.the sites of the activity of acid and alkaline phosphatases and lipase have been localized in the gastro-intestinal tract of the fresh water fish, cirrhinus mrigala. all the three enzymes experimented have been recorded to be active in the mucosal epithelium of all the portions of the alimentary canal. muscularis and serosa of all the parts of alimentary canal show negative sign for the presence of these enzymes. in the pancreas, both intra-hepatic and extrahepatic, strong activity of these enzy ...1975813483
a histochemical study of the mucous cells in the bucco-pharyngeal epithelium of young cirrhinus mrigala (hamilton), a freshwater carp, (pisces: teleostomi: cypriniformes), in relation to the origin, structure and cytomorphosis. 1977913993
the morpho-histology of the pituitary glands in two freshwater major carps of india, labeo rohita (ham.) and cirrhinus mrigala (ham.).1. the pituitary gland in labeo rohita and cirrhinus mrigala is a small, pear-shaped, whitish, soft body situated in a cavity -- the sella turcica. the gland is of the lepto-dorso basic type. 2. it consists of the neurohypophysis and adenohypophysis. the latter comprises three lobes viz., the rostral pars distalis, the proximal pars distalis and the pars intermedia. 3. the neurohypophysis branches into the pars distalis, extends into the pars intermedia and ramifies extensively. it is composed o ...1976984440
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 ...19761020417
presence of functional renal thyroid in the teleost cirrhinus mrigala (ham). 19761024997
morpho-histology of the intestine in a freshwater major carp, cirrhinus mrigala (hamilton) during the different life-history stages in relation to food and feeding habits.the morpho-histology in relation to food and feeding habits of the intestine in the fry, fingerling and adult of cirrhinus mrigala (hamilton), a freshwater major carp, has been described. the intestine has been observed to be shortest in the fry (carnivorous) and longest in the adults (herbivorous) with intermediate values in the fingerlings (omnivorous). the mucosal folds of the intestine have also been observed to be adapted according to the nature of the dietary prevailing in the different li ...19751200390
on the origin, development and probable functions of taste bud in the lip and bucco-pharyngeal epithelia of an indian freshwater major carp, cirrhinus mrigala (hamilton) in relation to food and feeding habits.1. various developmental stages of taste bud have been observed in the fry, fingerling and adult of cirrhinus mrigala (hamilton). 2. the fries are zooplankton-feeders (carnivorous) and sight-feeders. therefore, functional taste buds are absent in the lip and bucco-pharyngeal epithelia. only formative stages of taste bud are present. some epithelial cells aggregate together to form this structure which has no function in gustation. moreover, the fires have low r. l. g. valle (0.71;..1.20) due to ...19751224765
ontogenetic and comparative analysis of ldh isozymes in the three species of indian major carp.expression patterns of lactate dehydrogenase (ldh) isozyme were investigated in embryonic and post embryonic stages of labeo rohita, cirrhinus mrigala and catla catla using starch gel electrophoresis. species specific and differential enzyme locus (gene) expression patterns were found in ldh up to 18th hr of study. the isozyme up to 36th hr after fertilization seemed to be completely active and showed electrophoretic patterns very similar to those of the adults. comparative analysis of the isozy ...19921521871
in vitro effect of mammalian pituitary hormones on germinal vesicle breakdown in oocytes of major carps, labeo rohita, cirrhinus mrigala, catla catla and cyprinus carpio.among all the mammalian pituitary hormones, luteinizing hormone (lh) was the most potent in vitro inducer of oocyte maturation in l. rohita, c. mrigala, c. catla and c. carpio. it induced significant germinal vesicle breakdown (gvbd) at concentrations of 10, 1, 0.1 and 0.01 micrograms/ml. at the highest concentration used, lh induced 77.9 +/- 5.9, 73.8 +/- 4.6, 50.3 +/- 2.8 and 40.8 +/- 1.4% gvbd in oocytes of l. rohita, c. mrigala, c. catla and c. carpio, respectively. among other hormones, fol ...19892632393
in vitro effects of cyanoketone and epostane on lh-induced germinal vesicle breakdown in oocytes of indian major carps.the effect of cyanoketone (inhibitor of delta 5-3 beta-hydroxysteroid dehydrogenase) and epostane (inhibitor of 3 beta-hydroxysteroid dehydrogenase) on lh-induced in vitro germinal vesicle breakdown (gvbd) in the oocytes of indian major carps, labeo rohita, cirrhinus mrigala, and catla catla, was investigated using five concentrations for each inhibitor. both of these inhibitors could significantly inhibit the lh-induced gvbd at all of their concentrations in l. rohita and c. catla. however, in ...19892920902
cytological changes in the prolactin cells of the pituitary of the freshwater teleost cirrhinus mrigala (ham.), in response to osmotic stress and reserpine. 20123765791
toxicity of four pesticides on the fingerlings of indian major carps labeo rohita, catla catla, and cirrhinus mrigala.fingerlings of labeo rohita, catla catla, and cirrhinus mrigala were exposed to selected doses of four commonly used pesticides carbofuran, ddt, dimethoate, and meta-systox for a period up to 30 days to determine relative toxicological effects, lc50 values for 96 hr, maximum acceptable tolerant concentration, and application factor. the use of early life history tests has been emphasized for toxicological assessments.19863792265
a histochemical study on the adrenal components of the teleost cirrhinus mrigala (ham.).the adrenal components of c. mrigala are embedded in the pronephric cephalic kidney around the post cardinal vein. the cortical cells responded positively to the lipids, ascorbic acid, delta 5-3 beta-hsd, g-6-pd, mao, acid and alkaline phosphatase tests. the presence of intense mao activity may suggest the possible involvement of monoamines in the adrenocortical function. localization of lipids and delta 5-3 beta-hsd show the sites of corticosteroid synthesis. in the chromaffin cells, mao, acid ...19806251648
changes in gonadotrophin, lipid and cholesterol levels during annual reproductive cycle in the freshwater teleost, cirrhinus mrigala (ham.).pituitary gonadotrophin started increasing with gonadosomatic index from preparatory phase but increase in serum gonadotrophin became evident from prespawning phase. however, their peaks were noticed in spawning phase. during other phases of reproductive cycle their values were low except for female pituitary gonadotrophin potency which remained comparatively high during postspawning phase. an increase in ovarian and decrease in testicular lipid started from preparatory phase which continued til ...19846508234
morpho-histology of the hypothalamo-neurohypophyseal system in relation to gonadal maturation in cirrhinus mrigala (ham.), a freshwater indian carp.the hypothalamic neurosecretory centres, their pathway and the role of neurosecretory material responsible for gonadal maturation during its annual cycle is being reported here for the first time in an indian freshwater major carp, cirrhinus mrigala (ham.).19807235262
toxicity of endosulfan to the freshwater fish cirrhinus mrigala. 19817337857
composite fish culture for mosquito control in rice fields in southern india.composite culture of edible fishes (common carp, cryprinus carpio; silver carp, hypopthalmithys molitrix, grass carp, ctenopharyngodon idella; catla, catla catla; rohu, labeo rohita; and mrigal, cirrhinus mrigala) in rice fields in the cauvery delta of tamil nadu, southern india, resulted in 81.0% reduction in the immature mosquito population of anophelines and 83.5% of culicines. analysis of fish feces for mosquito larval head capsules showed that common carp and silver carp are effective larvi ...19947777919
purification and properties of an indian major carp (cirrhinus mrigala, ham.) pituitary thyrotropin.thyroid stimulating hormone (tsh) was isolated and purified from the pituitaries of indian major carp, cirrhinus mrigala, with the help of a sensitive in vitro bioassay system, based on incubating isolated thyroid follicles from murrel, channa gachua. in this assay, addition of test material containing tsh increased thyroxine (t4) release into the medium which was then measured by radioimmunoassay (ria). tsh activity was eluted as one major peak on sephadex g-100 gel filtration (peak i), which a ...19938319876
effect of different concentrations of cryoprotectant and extender on the hatching of indian major carp embryos (labeo rohita, catla catla, and cirrhinus mrigala) stored at low temperaturerohu (labeo rohita), catla (catla catla) and mrigal (cirrhinus mrigala) embryos were examined for hatching success after short-term (8-13 h) storage at low temperature (4 degreesc) using three concentrations of three cryoprotectants, methanol (1, 2, and 3 m), dimethyl sulfoxide (1.282, 1.923, and 2.564 m, equal to 10, 15, and 20%), and glycerol (1.087, 1.63, and 2.174 m, equal to 10, 15, and 20%), separately as well as together with a single concentration of sucrose (0.5 m). the aim was to deter ...19989917348
gonadotropin-releasing hormone stimulates thyroid activity in a freshwater murrel, channa gachua (ham.), and carps, catla catla (ham.) and cirrhinus mrigala (ham.).injections of mammalian gnrh (mgnrh), salmon gnrh (sgnrh), and a homologous murrel, channa punctatus, gnrh (cgnrh) to a murrel, channa gachua, and a carp, catla catla, at a dose of 1 microg/250 g body wt significantly increased plasma thyroxine (t4) levels above control. piscine gnrhs (sgnrh and cgnrh) had significantly greater stimulatory effects compared with mgnrh. to observe whether this stimulatory effect by gnrhs is direct or indirect, thyroid follicles were isolated from hypobranchial mus ...200010764556
role of two plasma vitellogenins from indian major carp (cirrhinus mrigala) in catfish (clarias batrachus) vitellogenesis.complete vitellogenesis (synthesis and incorporation of vitellogenin, vg) in the female catfish, clarias batrachus, during different reproductive phases (preparatory, prespawning, and postspawning) of its annual ovarian cycle is induced by administering heterologous vg (semipurified; ult-i and purified; ha-i and ha-ii) isolated from the indian major carp, mrigal (cirrhinus mrigala). during the prespawning period, ult-i, which contains both ha-i and ha-ii, showed a dose-dependent response in rela ...200111703069
production of superoxide anion by head-kidney leucocytes of indian major carps immunised with bacterins of aeromonas hydrophila.on contact with micro-organisms or any other antigenic particles which are recognised as phagocytosable, the leucocytes of vertebrates raise their oxygen consumption suddenly (respiratory burst). the consumed oxygen is then converted into reactive oxygen species (ros). an effort has been made in the present study to estimate the production of superoxide anion, one of the ros, by the resident as well as activated head-kidney leucocytes of indian major carps. activation was accomplished by immunis ...200211931016
toxicity and residue studies of fenvalerate to some selected freshwater fishes.the toxicity test of fenvalerate were conducted to fresh water fishes labeo rohita (hamilton), catla catla (hamilton), cirrhinus mrigala (hamilton), aplocheilus punchex (hamilton) and ctenopharygodon idellus (valenciennes). the static and continuous flow through tests were employed to determine the lethal concentration (lc50) for 24h, 48h and 96h to the test fish. it was observed that cirrhinus mrigala is more sensitive to this pesticide followed by applochielus punchex, lebeo rohita, catla catl ...200112017257
immunisation of indian major carps against aeromonas hydrophila by intraperitoneal injection.the indian major carps catla catla, labeo rohita and cirrhinus mrigala were immunised against the potent bacterial fish pathogen, aeromonas hydrophila by the intraperitoneal route, in field conditions. two different polyvalent antigen preparations namely, whole cell and extracellular products (ecp) were used. immunisation schedule consisting of a single booster dose given 28 days after priming resulted in a good agglutinating antibody response in the carps. kinetics of the response were similar ...200212201649
high vitamin a content in some small indigenous fish species in bangladesh: perspectives for food-based strategies to reduce vitamin a deficiency.recognising the importance of fish in the bangladeshi diet, the objective of the present study was to screen commonly consumed fish species for vitamin a content to evaluate the potential of fish as a vitamin a source in food-based strategies to combat vitamin a deficiency. samples of 26 commonly consumed fish species and one crustacean were collected in kishoreganj and mymensingh, bangladesh. to obtain edible parts, the fish were cleaned by bangladeshi women according to traditional practices. ...200212396468
utilization of fermented silkworm pupae silage in feed for carps.fermented silkworm pupae (swp) silage or untreated fresh swp pastes were incorporated in carp feed formulations replacing fishmeal. the feed formulations were isonitrogenous (30.2-30.9% protein) and isocaloric (me = 2905-2935 kcal/kg). feeding under a polyculture system consisting of 30% each of catla (catla catla), mrigal (cirrhinus mrigala) and rohu (labeo rohita) with 10% silver carps (hypophthalmychthys molitrix) was carried out in ponds to evaluate the nutritive quality of swp silage. survi ...200312421005
alterations in the biochemical constituents of muscles of cirrhinus mrigala following exposure to and withdrawal from metals. 200312478431
responses of isolated scale melanophores of a fresh water carp, cirrhinus mrigala (ham.) to zidovudine.zidovudine (azt) induced concentration related aggregation in c. mrigala melanophores. denervated melanophores failed to respond to azt. specific and nonspecific alpha adrenoceptor antagonists completely blocked the responses of fish melanophores to azt. histamine and prostaglandin antagonists also inhibited aggregation of the melanophores induced by azt. the results suggest that azt may release a mixture of neurotransmitter like substances, which cause the aggregation of this fish melanophores.200212561973
evidence for presence of gaba-ergic receptor mediated dispersion in isolated scale melanophores of a carp, cirrhinus mrigala ham.effects of gaba-ergic agonists and antagonists were examined on the melanophores of a carp c. mrigala in vitro. gaba and baclofen both induced concentration - related dispersion in fish melanophores. denervation of the melanophores by reserpine treatment potentiated the sensitivity of the melanophores to gaba. while denervation by cooling treatment inhibited the sensitivity of the melanophores to gaba, atropine, bicuculline and pentylenetetrazole all inhibited the dispersal responses of the mela ...200212561974
studies of some biochemical changes in the tissues of catla catla (hamilton), labeo rohita (hamilton) and cirrhinus mrigala (hamilton) exposed to nh3-n, no2-n and no3-n.biochemical changes, total proteins, glycogen, aspartate and alanine (aat and alat) amino transferases were studied with exposure of sublethal concentrations of nh3-n, no2-n and no3-n to the freshwater fish catla catla (hamilton), labeo rohita (hamilton) and cirrhinus mrigala (hamilton). depletion in the food reserves and enzyme activity was observed in all the three fish species exposed to these toxicants. hence, the concentrations of nh3, no2 and no3 in water need to be monitored in water qual ...200212674377
oilcakes as protein sources in supplementary diets for the growth of cirrhinus mrigala (ham.) fingerlings: laboratory and field studies.five isonitrogenous diets (1-5) with 40% protein using oilcakes as protein sources were formulated and fed to cirrhinus mrigala fingerlings maintained both under laboratory and field conditions. water soaking of oilcakes for 24 h before incorporation in the diets helped in the reduction of antinutrient factors (phytase and tannins). live weight gain in fish fingerlings fed on a diet containing groundnut oilcake (gnoc) was significantly (p < 0.05) enhanced in comparison to the other dietary treat ...200312688472
reproduction phase-related expression of gnrh-like immunoreactivity in the olfactory receptor neurons, their projections to the olfactory bulb and in the nervus terminalis in the female indian major carp cirrhinus mrigala (ham.).the reproductive biology of the indian major carp cirrhinus mrigala is tightly synchronized with the seasonal changes in the environment. while the ovaries show growth from february through june, the fish spawn in july-august to coincide with the monsoon; thereafter the fish pass into the postspawning and resting phases. we investigated the pattern of gnrh immunoreactivity in the olfactory system at regular intervals extending over a period of 35 months. although no signal was detected in the ol ...200312957480
nitrite toxicity in indian major carps: sublethal effect on selected enzymes in fingerlings of catla catla, labeo rohita and cirrhinus mrigala.the effects of 96-h sublethal exposure of nitrite (1, 2, 4, 8 and 10.4 mg l(-1)) on selected enzymatic activities in serum and tissues of fingerlings of catla (catla catla), rohu (labeo rohita) and mrigal (cirrhinus mrigala) were studied for the first time in these species. all three species responded almost identically to nitrite exposure. with increasing nitrite concentration, reduction in activities was observed in acetylcholinesterase (ache) in brain and liver; alkaline phosphatase (alp) in ...200415313441
dietary requirement of tryptophan for growth and survival of the indian major carp, cirrhinus mrigala (hamilton-buchanan) fry.the experimental diets (40% protein) contained graded levels of tryptophan (0.60, 0.75, 1.00, 1.25, 1.50, 1.75%) of dietary protein. each test diet was fed to triplicate groups of mrigal fry twice daily at 10% of the total biomass for 8 weeks. the dietary tryptophan requirement was estimated by plotting weight gain against dietary levels of tryptophan using two separate regression equations, the point of intersection of two equations was taken as optimum level, which occurred at 0.48% of the die ...200315332510
toxicity and bioaccumulation of chlorpyrifos in indian carp catla catla (hamilton), labeo rohita (hamilton), and cirrhinus mrigala (hamilton). 200415669740
ontogeny of gnrh-like immunoreactive neuronal systems in the forebrain of the indian major carp, cirrhinus mrigala.gnrh immunoreactivity appeared in the medial olfactory placode very early in the development of cirrhinus mrigala. the immunoreactive elements were divisible into distinct migratory and non-migratory components. the migratory component appeared as a patch of intensely immunoreactive cells located close to the olfactory epithelium in day 6 post-fertilization larvae. subsequently, these neurons migrate caudally along the ventromedial aspect of the developing forebrain and enroute give rise to gnrh ...200515748717
accumulation of fenvalerate and related changes in lactate and succinate dehydrogenases activity in functionally different tissues of the freshwater fish, cirrhinus mrigala (hamilton).acute toxicity (lc50) of fenvalerate at 96 h to the freshwater fish cirrhinus mrigala was 6 microg/l. the accumulation of fenvalerate at different exposure periods (1, 2, 3, 4 d) on different tissues, namely gill, muscle, and liver, was first confirmed by thin layer chromatography and quantified with gas liquid chromatography. gill accounted for the maximum accumulation of fenvalerate followed by muscle and liver. enzyme assay indicated an increased activity of lactate dehydrogenase, whereas the ...200415803954
the effect of chlorpyrifos, an organophosphate in acetyl cholinesterase activity in freshwater fishes.the freshwater fish catla catla, labeo rohita and cirrhinus mrigala are exposed to the toxicant chlorpyrifos, an organo phosphate commonly used in agriculture as well as in aquaculture. the effect was studied on the enzyme acetyl cholinesterase activity which was inhibited in the selected tissues of the fish. in different tissues and in brain, the maximum inhibition was observed.200516114464
behavioural changes in freshwater fish, cirrhinus mrigala (hamilton) exposed to cypermethrin.the toxicity of insecticide cypermethrin to the freshwater fish, cirrhinus mrigala was studied using static bioassay method. the 96 h lc50 was found to be 5.13 microg/l. increase in opercular movement, loss of equilibrium, increase in surface behaviour, change in body colour, increase secretion of mucus, irregular swimming activity, rapid jerk movement, 's' jerky, partial jerk, and aggressiveness were observed in fish exposed to lethal concentration of cypermethrin. but in sub lethal concentrati ...200516114475
biochemical changes induced by chlorpyrifos, an organophosphate compound in sublethal concentrations to the freshwater fish catla catla, labeo rohita and cirrhinus mrigala.freshwater fishes, catla catla, labeo rohita and cirrhinus mrigala were exposed to sublethal concentration of the pesticide chlorpyrifos an organophosphate pesticide. biochemical changes in total glycogen, total proteins, lactate dehydrogenase (ldh), alanine amino transferase (alat) and aspartate amino transferase (aat) and nucleic acids, deoxy and ribose, were estimated in the tissues of fishes exposed to the toxicant chlorpyrifos technical grade. the decrease in total glycogen and proteins ove ...200516334264
reproduction phase-related expression of beta-endorphin-like immunoreactivity in the nucleus lateralis tuberis of the female indian major carp cirrhinus mrigala: correlation with the luteinising hormone cells-ovary axis.the present study aimed to determine whether beta-endorphin immunoreactivity (bep-ir) in the neurones of the nucleus lateralis tuberis (nlt) is linked to the seasonal cycle and shows correlation with the number of luteinising hormone (lh) cells in the pituitary gland and ovaries in the teleost, cirrhinus mrigala. although lh cells were moderately immunostained during the resting phase (december to january), the morphological profile suggested increased synthetic and secretory activity during the ...200616629830
changes in nitrogen metabolism of the freshwater fish cirrhinus mrigala following exposure to cypermethrin.we studied the effect of a synthetic pyrethroid insecticide, cypermethrin, on some aspects of nitrogen metabolism in the gills, liver, and muscle tissue of the indian major carp, cirrhinus mrigala. free amino acid levels and protease activity showed an elevation in all tissues following exposure to lethal (5.13 microg/l) and sublethal (1.026 microg/l) doses of cypermethrin, with significant changes noticed on day 4. the normal condition was restored only at a sublethal concentration.200616639881
dietary branched-chain amino acid valine, isoleucine and leucine requirements of fingerling indian major carp, cirrhinus mrigala (hamilton).three 8-week growth experiments were conducted to quantify the requirements of the fingerling cirrhinus mrigala for the dietary branched-chain amino acids valine (experiment 1), isoleucine (experiment 2) and leucine (experiment 3). six isonitrogenous (400 g/kg) and isoenergetic (17.90 kj/g) test diets were formulated with a gradation of 2.5 g/kg for each test amino acid, valine (7.5-20 g/kg), isoleucine (5.0-17.5 g/kg) and leucine (7.5-20 g/kg), and fed to randomly stocked fish in circular troug ...200616925849
the effects of fenvalerate on different tissues of freshwater fish cirrhinus mrigala.the histopathological changes of fenvalerate on the gill, kidney, liver and intestine tissues of the cirrhinus mrigala were determined by light microscopy. the fish were exposed to two sub-lethal concentrations of fenvalerate (1.5-3.0 ppb). the most common gill changes at all concentrations of fenvalerate were epithelial hyperplasia, epithelial necrosis, desquamation and lamellar fusion. besides, epithelial lifting, oedema, swelling at the tips of secondary lamellae and curling of secondary lame ...200717365330
cypermethrin induced protein metabolism in the freshwater fish cirrhinus mrigala (hamaliton).the effect of cypermethrin on protein content of the gill, liver, and muscle tissue was estimated in fish, cirrhinus mrigala. fish were exposed to lethal and sublethal concentrations of cypermethrin (5.13 microg/l and 1.026 microg/l) for 1, 2, 3, 4 and 1, 7, 14, 21 days. the glutamine and urea levels were significantly increased in all tissues, whereas depletion of the ammonia level occurred on all the exposure days. at sublethal concentrations at 21 days, however, the ammonia level increased an ...200717569246
the effects of monocrotophos to different tissues of freshwater fish cirrhinus mrigala.the histopathological effects of monocrotophos on the gill, kidney and intestine tissues of the cirrhinus mrigala were determined by light microscopy. the changes in the gills were characterized by epithelial hyperplasia, aneurysm, epithelial necrosis, desquamation, epithelial lifting, oedema, lamellar fusion and curling of secondary lamellae. pycnotic nuclei in tubular epithelium, hypertrophied epithelial cells of renal tubules, contraction of the glomerulus and expansion of space inside the bo ...200717619798
[organization of olfactory system of the indian major carp labeo rohita (ham.): a study using scanning and transmission microscopy].catla catla, labeo rohita, and cirrhinus mrigala are important alimentary fish in india. their reproduction (breeding) depends on season. the fish perceive external factors-stimuli and chemical signals through the olfactory system that plays the key role in the central regulation of reproduction. however, in the available literature, any electron microscopy data on organization of olfactory elements in these fish are absent. we have studied ultrastructure of the olfactory organ in male l. rohita ...200717725034
effect of phenol on haematological components of indian major carps catla catla, labeo rohita and cirrhinus mrigala.the effect of phenol on haematological components of indian major carps, catla catla, labeo rohita and cirrhinus mrigala were observed. after exposure to sublethal concentrations of 5.17 mg l(-1), 6.06 mg l(-1) and 6.99 mg l(-1), the number of red blood cells, haemoglobin content and packed cell volume all decreased but the glucose level increased. the order of decrease in the haematological components of the three fish is in the order of catla catla > labeo rohita > cirrhinus mrigala.200717915746
influence of ph and water hardness upon nickel accumulation in edible fish cirrhinus mrigala.the freshwater fingerlings of cirrhinus mrigala were exposed to nickel in acidic medium ph = 6.0 (5.8-6.2), alkaline medium ph = 9.0 (8.8-9.2) and water hardness (40 mg/l) of caco3. the study indicates that nickel accumulation was significantly influenced by ph and hardness of water the concentration was found to be significantly higher at ph = 9.0 than at ph = 6.0. also the presence of hardness in water results in reduced toxicity of nickel.200717929771
free cyanide-induced biochemical changes in nitrogen metabolism of the indian major carp cirrhinus mrigala.we studied the effect of free cyanide on several aspects of nitrogen metabolism in the gills, liver, and muscle tissue of the indian major carp, cirrhinus mrigala. free amino acid levels and protease activity were elevated following exposure to lethal and sublethal doses of free cyanide. at the lethal concentration, significant changes were noticed on day 4 for both parameters. the normal condition was restored only at the sublethal concentration.200718380169
hepatotoxic potential of malathion in the freshwater teleost, cirrhinus mrigala (hamilton).freshwater edible fish, cirrhinus mrigala, were exposed to a sublethal concentration (3 microl/l) of commercial grade malathion (50% ec) for 5, 15, or 25 days. after each exposure period, the liver was removed to study biochemical alterations. an increase in free amino acids, protease activity, and acetylcholine (ach) levels, in contrast to decrement in total, structural, and soluble proteins, and acetylcholine esterase (ache) activity were observed at 5 and 15 days of exposure, but on day 25 of ...200718380172
prevalence of zoonotic trematodes in fish from a vietnamese fish-farming community.the prevalence of fish-borne zoonotic trematode (fzt) metacercariae was investigated in fish farmed by rural households in nghe an province, located in northern vietnam. in total, 716 fish, including tilapia (oreochromis niloticus) and 6 carp species, i.e., grass carp (ctenopharyngodon idellus), bighead carp (aristichthys nobilis), mrigal (cirrhinus mrigala), common carp (cyprinus carpio), silver carp (hypophthalmychthys molitrix), and roha (labeo rohita), collected from 53 fish farms were exami ...200818564743
antibacterial properties of fish mucus from channa punctatus and cirrhinus mrigala.extracts and preparations made from the animal origin were used extensively in folk and modern medicine for treating many human diseases. in the present study efforts have been made to find the antimicrobial effect of the mucus of two bottom dwelling fresh water fishes namely, channa punctatus and cirrhinus mrigala. fish mucus were tested against ten pathogenic bacteria such as escherichia coli, klebsiella oxytoca, klebsiella pneumoniae, lactobacillus vulgaris, proteus mirabilis, pseudomonas aer ...200818700685
cloning, nucleotide sequence and phylogenetic analyses, and tissue-specific expression of the transferrin gene in cirrhinus mrigala infected with aeromonas hydrophila.transferrin partial complementary dnas were cloned from the livers of five species in four genera of indian carps (indian major carp species: labeo rohita, catla catla and cirrhinus mrigala; medium carp: puntius sarana; minor carp: labeo bata) subsequent to polymerase chain reaction amplification with published heterologous primers or self-designed primers derived from conserved regions of transferrin cdna sequences. the partial transferrin cdnas of the five species of carps had sizes from 624 t ...200918718662
sublethal effects of heavy metals on biochemical composition and their recovery in indian major carps.studies were conducted to assess the effects of sublethal exposure of heavy metals cadmium, arsenic and zinc for 45 days on indian major carps, labeo rohita, cirrhinus mrigala and catla catla. heavy metal treatments in general showed significant reduction in carbohydrate and lipid contents content in muscles as well as in gills in all the three fish species. the order of reduction of muscle and gill carbohydrate and lipid content due to different treatments was cd+as+zn>cd+as>as+zn>cd+zn>cd>as>z ...200918775601
metal concentrations in water, sediment, and fish from sewage-fed aquaculture ponds of kolkata, india.the concentrations of lead, cadmium, chromium, copper, and zinc were investigated in the sewage-fed pond water, sediment, and the various organs of labeo rohita, catla catla, cirrhinus mrigala, oreochromis mossambicus, and cyprinus carpio cultured in sewage-fed ponds, kolkata, india. among the metals, cadmium, lead, and zinc were detected in water and, except lead, were below the water quality guideline levels for the protection of freshwater aquatic life proposed by ceqg (canadian environmental ...200918998223
characterization of igm of indian major carps and their cross-reactivity with anti-fish igm antibodies.indian major carps (imc), rohu (labeo rohita), catla (catla catla) and mrigal (cirrhinus mrigala) were immunized with bovine serum albumin and the serum immunoglobulin m (igm) was purified by affinity chromatography. the heavy and light chain of igm of all the three species of imc were about 88 and 26kda, respectively. anti-fish igm antibody against all the three species were raised in mice and the reaction of anti-fish igm antibodies with igm of all the three species of imc were studied by west ...200919063976
distributions of metals in the food web of fishponds of kolleru lake, india.the distributions of trace metals (pb, cd, cr mn, zn and cu) in water, sediment, plankton and four fish species (labeo rohita, catla catla, pangasius pangasius and cirrhinus mrigala) from fishponds of kolleru lake, india were determined using atomic absorption spectroscopy. the concentrations of lead (0.01-0.03mg/l) and copper (0.01-0.08mg/l) in water and cadmium (3.0-9.0mg/kg), chromium (47-211mg/kg) and copper (10-64mg/kg) in sediment were above the epa threshold effects level (tel) and are of ...200919070365
goat serum as an alternative to establish cell culture from indian major carp, cirrhinus mrigala.serum from goat, calf, and chicken sources were evaluated in terms of attachment, growth, and proliferation of explants of indian major carp, cirrhinus mrigala. the attachment of explants viz. heart, liver, and kidney was directly proportional to the concentration of the serum. among these sera, the highest percentage of attachment, growth, and proliferation was recorded for 10% goat serum and 15% newborn calf serum without affecting their cell morphology. on contrary to these sera, chicken seru ...200919118441
morphological specializations of the buccal cavity in relation to the food and feeding habit of a carp cirrhinus mrigala: a scanning electron microscopic investigation.the buccal cavity of an herbivorous fish, cirrhinus mrigala, was investigated by scanning electron microscopy to determine its surface ultrastructure. the buccal cavity shows significant adaptive modifications in relation to food and feeding ecology of the fish. the buccal cavity of the fish is of modest size and limited capacity, which is considered an adaptation with respect to the small-sized food items primarily consumed by the fish that could be accommodated in a small space. modification o ...200919123241
role of waterborne copper on survival, growth and feed intake of indian major carp, cirrhinus mrigala hamilton.the effect of copper on survival, growth and feed intake of indian major carp, cirrhinus mrigala (hamilton) fry (0.92 +/- 0.28 g) was studied for 60 days. survival rates of the fish exposed to control (0.02), 0.10, 0.15 and 0.23 mg l(-1) copper were 100%, 83 +/- 3%, 58 +/- 6%, and 50 +/- 4%, respectively. average daily growth was significantly (p < 0.05) lower at 0.15 and 0.23 mg l(-1) of copper. there was almost no growth at 0.23 mg l(-1) of copper. feed intake rates reduced significantly (p < ...200919165406
microbiological quality of finfish and shellfish with special reference to shiga toxin-producing escherichia coli o157.the objective of this study was to determine the microbiological quality of fish and shellfish from kolkata, india, with special emphasis on e. coli o157. fresh and ice-preserved labeo rohita, catla catla, cirrhinus mrigala, oreochromis mossambica, heteropneustesfossilis, clarias batrachus, and penaeus monodon were examined for total heterotrophic bacteria and coliform loads and presence of e. coli and e. coli serotype o157 by culture method. while the total plate count of bacteria was within ac ...200819241559
surface ultrastructure of gill arches and gill rakers in relation to feeding of an indian major carp, cirrhinus mrigala.the surface ultrastructure of the gill arches and the gill rakers of an herbivorous fish, cirrhinus mrigala was investigated by scanning electron microscopy. these structures show significant adaptive modifications associated with the food and feeding ecology of the fish. closely lying short gill rakers and narrow inter-raker channels on the gill arches are associated to filter and retain food particles. prominent epithelial protuberances on the gill rakers and the gill arches enable the taste b ...200919261316
bioaccumulation and depuration of chromium in the selected organs and whole body tissues of freshwater fish cirrhinus mrigala individually and in binary solutions with nickel.contamination of aquatic ecosystems with heavy metals has been receiving increased worldwide attention due to their harmful effects on human health and other organisms in the environment. most of the studies dealing with toxic effects of metals deal with single metal species, while the aquatic organisms are typically exposed to mixtures of metals. hence, in order to provide data supporting the usefulness of freshwater fish as indicators of heavy metal pollution, it has been proposed in the prese ...200919402427
chelating efficacy of cana(2) edta on nickel-induced toxicity in cirrhinus mrigala (ham.) through its effects on glutathione peroxidase, reduced glutathione and lipid peroxidation.in this age of modern biology, aquatic toxicological research has provided potential tools for ecotoxicologic investigations. heavy metals primarily affect protein structures and induce a stress in the organisms. the present investigation was carried out to assess the effect of nickel chloride on the selected organs of the freshwater fish cirrhinus mrigala and how cana(2) edta counters its effects as an antidote. toxicity experiments were conducted for different exposure periods and also in cert ...200919632651
antimicrobial resistance and in vitro gene transfer in bacteria isolated from the ulcers of eus-affected fish in india.the occurrence of drug resistance and plasmid-mediated transferability was investigated in 15 aeromonas isolates collected from the ulcers of epizootic ulcerative syndrome (eus)-affected fishes katla (catla catla), mrigel (cirrhinus mrigala) and punti (puntius sp.).200919709369
impact of cypermethrin on na(+)-k (+), ca (2+) and mg (2+) atpases in indian major carp, cirrhinus mrigala (hamilton).activities of atpase in different organs of cirrhinus mrigala exposed to cypermethrin with lethal (5.13 microg/l) and sublethal (1.02 microg/l) concentration was investigated. decrease of na(+)-k(+)-atpase activity was observed in gills, liver and muscle to about 60.22%, 22.13% and 48.89% respectively, by lethal concentration. whereas in sublethal concentration activity was increased to about 7.84%, 10.70% and 5.96%. similarly, in case of mg(2+)-atpases activity as 57.61%, 48.82% and 28.59% for ...201019823759
effect of dietary spirulina on reduction of copper toxicity and improvement of growth, blood parameters and phosphatases activities in carp, cirrhinus mrigala (hamilton, 1822).the effect of spirulina supplementation on reduction of copper toxicity based on food utilization, phosphatases activities and selected haematological parameters was studied in a freshwater cultivable fish c. mrigala. metal concentration in medium, body tissues and fecal matter was also analysed. sublethal exposure of c. mrigala fed spirulina-free diet significantly reduced the consumption and growth rates, phosphatases activities and haematological parameters. however, the above parameters enha ...200919957889
reproduction phase-related variations in the gnrh immunoreactive fibers in the pineal of the indian major carp cirrhinus mrigala (ham.).we studied gnrh immunoreactivity in the pineal gland of the indian major carp cirrhinus mrigala during different phases of reproductive cycle. in the resting phase (december-january), gnrh immunoreactive (-ir) fibers were organized as paired fascicles above the posterior commissure that ascend in the stalk and distribute widely in the pineal gland. the gnrh-ir fiber density significantly declined (p<0.001) during the preparatory phase (february-april) and the fibers disappeared thereafter. while ...200520035452
inhibitory effect of pistia tannin on digestive enzymes of indian major carps: an in vitro study.aquatic weeds are one of the major unconventional feed ingredients tested for aquafeed formulation. tannin content in the water lettuce, pistia, has been quantified (26.67 mg g(-1); dry weight) and graded levels of which (12.5-200 μg) have been incorporated in the reaction mixtures to evaluate any change in the in vitro activity of the principal digestive enzymes from the three indian major carps (imc), namely rohu (labeo rohita), catla (catla catla) and mrigala (cirrhinus mrigala). result of th ...201020369287
fish-borne zoonotic trematodes in cultured and wild-caught freshwater fish from the red river delta, vietnam.nam dinh province in red river delta, vietnam, is an endemic area for the human liver fluke clonorchis sinensis, but little is known about its occurrence in the fish intermediate host in this region. a cross-sectional study was carried out to identify fish-borne zoonotic trematodes (fzt) species diversity and to estimate the prevalence and infection densities of fzt in three major types of fish: cultured species and self-recruiting species from family ponds and wild-caught species from irrigatio ...201020370427
biochemical and stress responses of rohu labeo rohita and mrigal cirrhinus mrigala in relation to acclimation temperatures.the biochemical and stress responses of two indian major carps, rohu labeo rohita and mrigal cirrhinus mrigala were studied after acclimating them to four preset temperatures (26, 31, 33 and 36 degrees c) for 30 days. the blood glucose and liver glycogen levels showed an inverse trend in both the species and were significantly different in l. rohita at higher temperatures. the decrease in the liver glycogen level of c. mrigala, however, was not significant. plasma cortisol levels increased signi ...200920735648
simple gas chromatographic method for the quantification of total cholesterol in fish meats.six fish species-cirrhinus mrigala (morakhi), labeo rohita (danbhro), catla catla (thalli), wallago attu (jarko), ctenopharyngodon idella (grass), and cyprimus carpio (gulfam)--commonly found in the pakistani indus river, were selected for fat and cholesterol evaluation. fat content was quantified by the folch method and cholesterol content was determined by a simple gc method. the application of the proposed method to quantify cholesterol content revealed variations among the six breeds evaluat ...201020922959
application of sensory and microbial analysis to assess quality of fish in siliguri city of west bengal, india.sensory and certain microbial analyses were applied to assess the quality of raw fish sold at a market in siliguri cityof west bengal, india. in regular surveys undertaken during june to august 2008, a particular fish species was randomly selected, its source was noted and a sensory analysis, the quality index method (qim) was applied to assess its quality raw fish samples were also collected and a small quantity (about 1 g) of scales oran upper layer of the skin surface (forscale-less fish samp ...201021387907
observation on prevalence of ectoparasites in carp fingerlings in two districts of west bengal.the present study has been carried out to find out the prevalence of ectoparasites of carp fingerlings during different months of the year 2008-2009. four groups of ectoparasites viz. myxozoan, ciliophoran, monogenean and crustacean were recorded from 400 fingerlings of rohu (labeo rohita), catla (catla catla), mrigal (cirrhinus mrigala), bata (labeo bata), common carp (cyprinus carpio) and lata (channa punctatus) collected from different ponds of nadia and hooghly district of west bengal from j ...201021526033
methyl mercury in fish-a case study on various samples collected from ganges river at west bengal.this study investigated the presence of total mercury (hg) and organic mercury levels in the muscle of 19 common fresh water fish species captured from river ganges, west bengal, india. the total mercury level found in our study may not cause any toxic effect, but the methyl mercury (mehg) level in some freshwater fish species was surprisingly very high and toxically unacceptable. the results of mercury analysis in various specimens indicated that some fish muscles tended to accumulate high leve ...201121713467
fenvalerate induced changes in the ach and associated ache activity in different tissues of fish cirrhinus mrigala (hamilton) under lethal and sub-lethal exposure period.the disruption of acetylcholinesterase activity in freshwater fish cirrhinus mrigala (hamilton) is demonstrated in the present study using acetylcholine chloride as substrate. fish, c. mrigala on exposure to lethal and sub-lethal concentration of synthetic pyrethroid insecticide, fenvalerate showed inhibition in the activity of the ache suggesting decrease in the cholinergic transmission and consequent accumulation of ach in the tissues, namely, gill, muscle, liver and brain. this might have lea ...200521783569
histopathology of lambda-cyhalothrin on tissues (gill, kidney, liver and intestine) of cirrhinus mrigala.the histopathology of lambda-cyhalothrin, a synthetic pyrethroid pesticide, on the gill, liver, intestine and kidney tissues in fish, mrigal (cirrhinus mrigala), which is one of indian major carp species were determined by light microscopy. the fish were experimentally exposed to sub-lethal concentrations (0.3ppb and 0.6ppb) of lambda-cyhalothrin for 10 days. tissues were normal in the control group. epithelial hyperplasia, aneurism, epithelial necrosis, desquamation, epithelial lifting, oedema, ...200721783823
surface ultrastructure of the gill filaments and the secondary lamellae of the catfish, rita rita, and the carp, cirrhinus mrigala.surface ultrastructures of gill filaments and secondary lamellae of rita rita and cirrhinus mrigala, inhabiting different ecological habitat, were investigated to unravel adaptive modifications. r. rita is a sluggish, bottom dwelling carnivorous catfish, which inhabits regions of river with accumulations of dirty water. it retains its viability for long time if taken out of water. c. mrigala is an active bottom dwelling indian major carp, which lives in relatively clean water and dies shortly af ...201221956840
inductive expression of toll-like receptor 5 (tlr5) and associated downstream signaling molecules following ligand exposure and bacterial infection in the indian major carp, mrigal (cirrhinus mrigala).toll-like receptors (tlrs) are one of the key components of innate immunity. among various types of tlrs, tlr5 is involved in recognizing bacterial flagellin and after binding, it triggers myeloid differentiation primary response gene 88 (myd88)-dependent signaling pathway to induce pro-inflammatory cytokines. in this report, we analyzed the expression profile of tlr5 and its associated downstream signaling molecules like myd88 and tumor necrosis factor (tnf) receptor-associated factor (traf) 6 ...201222085689
histochemical analysis of glycoproteins in the gill epithelium of an indian major carp, cirrhinus mrigala.glycoproteins were analyzed by a range of histochemical methods in the epithelium of gills of cirrhinus mrigala, a valuable food fish of great economic importance cultured extensively in india. the gills consist of gill arches, gill rakers, gill filaments and secondary lamellae. major components of the epithelium of gill arches and gill rakers are epithelial cells, mucous goblet cells, rodlet cells, lymphocytes, eosinophilic granular cells and taste buds. in contrast, in the gill filament epithe ...201222177215
induction of toll-like receptor (tlr) 2, and myd88-dependent tlr- signaling in response to ligand stimulation and bacterial infections in the indian major carp, mrigal (cirrhinus mrigala).toll-like receptor 2 (tlr2) is a member of tlr family. it recognizes a wide range of bacteria and their products, and is involved in inducing innate immune responses. in this article, we reported inductive expression of tlr2 and myeloid differentiation primary response gene 88 (myd88)-dependent signaling in the indian major carp, mrigal (cirrhinus mrigala) which is highly commercially important fish species in the indian subcontinent. ontogeny analysis of tlr2, myd88 and traf6 (tnf receptor asso ...201122207179
comparative analysis of innate immune parameters of the skin mucous secretions from certain freshwater teleosts, inhabiting different ecological niches.the innate immune system of fish is considered first line of defense against a broad spectrum of pathogens. being a component of innate immunity and lying at the interface between fish and the aqueous environment, skin mucus plays a frontier role in protecting fish from infections. in the present study, skin mucus of cirrhinus mrigala, labeo rohita, catla catla, rita rita and channa punctata, inhabiting different ecological niches, was analyzed to characterize potential innate immune factors suc ...201222350522
acute and sublethal effects in an indian major carp cirrhinus mrigala exposed to silver nitrate: gill na+/k+-atpase, plasma electrolytes and biochemical alterations.due to prolonged use of silver in many applications, it enters into the freshwater and affects the aquatic organisms. fingerlings of cirrhinus mrigala were exposed to acute and sublethal concentrations of silver nitrate and the alterations of gill na(+)/k(+)-atpase, plasma electrolytes and biochemical parameters were assessed. the median lethal concentration of silver nitrate to the fish c. mrigala for 96 h was found to be 0.107 mg/l (with 95% confidence limits). 1/10th of lc 50 96 h value (0.01 ...201222366066
effects of ibuprofen on hematological, biochemical and enzymological parameters of blood in an indian major carp, cirrhinus mrigala.in the present investigation, the most commonly used pharmaceutical drug ibuprofen (ib) was exposed to an indian major carp cirrhinus mrigala under static bioassay method to estimate its toxicological effects for a period of 35 days. the median lethal concentration (lc 50) of ib to the fish c. mrigala for 24h was found to be 142 ppm. in sublethal treatment (1/10th of lc 50 24h value, 14.2 ppm), a significant decrease in erythrocyte (rbc), mean cellular hemoglobin concentration (mchc) and plasma ...201222418069
nutrients budget and effluents characteristics in polyculture of scampi (macrobrachium rosenbergii) and indian major carps ponds using organic inputs.experiments were conducted for the study of nutrient budget in farmers' ponds (0.4-0.6 ha) in orissa, india, at stocking densities of 0.30-0.38/m(2) for scampi (macrobrachium rosenbergii) and 0.60-0.70/m(2) for indian major carps (catla catla, labeo rohita and cirrhinus mrigala). the average initial body weights of scampi and the major carps were 0.02 and 8-10 g, respectively. the culture period was 272-292 days. feed was the main input. the fcr (feed conversion ratio) varied from 1.78 to 1.83. ...201222864442
the first evidence of cholinesterases in skin mucus of carps and its applicability as biomarker of organophosphate exposure.the presence of cholinesterase (che) activity in skin mucus of three carps, cirrhinus mrigala, labeo rohita, and catla catla and its applicability as biomarker of the organophosphorus insecticide exposure were investigated. biochemical characterization, using specific substrates and inhibitors, indicated that measured esterase activity in skin mucus was mainly owing to ches. significant difference in the proportion of acetylcholinesterase and butyrylcholinesterase activities was observed in skin ...201422887814
short-term mercury exposure on na(+)/k(+)-atpase activity and ionoregulation in gill and brain of an indian major carp, cirrhinus mrigala.recently mercury pollution has been increased considerably in aquatic resources throughout the world and it is a growing global concern. in this study, the 96 h lc50 value of waterborne mercuric chloride for cirrhinus mrigala was found to be 0.34 mg/l (with 95% confidence limits). fingerlings of c. mrigala were exposed to 0.068 and 0.034 mg/l of mercuric chloride for 96 h to assess the na(+)/k(+)-atpase activity and ionoregulation (na(+), k(+) and cl(-)) in gill and brain. results showed that na ...201322944584
complete mitochondrial genome sequence of cirrhinus mrigala (hamilton, 1822).the complete mitochondrial genome of cirrhinus mrigala was determined using the polymerase chain reaction. the mitogenome (16,594 bp) has the typical vertebrate mitochondrial gene arrangement, including 13 protein-coding genes, 22 trna genes, two rrna genes and one control region. the overall base composition on the heavy strand was as follows: a: 32.0%, g: 15.5%, c: 28.0%, t: 24.55% and the a+t content: 56.5%. the control region contains a dinucleotide repeat motif, (ta)14, a termination-associ ...201322994312
effects of water borne iron on spawn of indian major carps (catla catla (ham.), labeo rohita (ham.) and cirrhinus mrigala (ham.)).effects of water-borne iron on indian major carps spawn were evaluated in the present study. ferrous sulphate was used to prepare different test iron concentrations. mrigal had the lowest 96 h lc(50) value of 0.30 ± 0.06 mg l(-1) while rohu had the highest value of 0.73 ± 0.06 mg l(-1) of iron. accumulation of iron in mrigal spawn was highest whereas it was lowest in catla. abnormal behaviour and reduced growth were observed in chronic toxicity. application factors were calculated to establish a ...201223052582
bioaccumulations of aluminum and the effects of chelating agents on different organs of cirrhinus mrigala.the study of biological indicator organisms may be more informative than analyzing water or sediments for monitoring heavy metal pollution in the aquatic environment. non-essential elements enter into the animals and accumulate at the different organs so that chelating agents are most versatile and effective antidotes to eliminate the metals toxicities. the aim of our present study is to find out bioaccumulations of aluminum and the effects of chelating agents dfo and dfp in muscle, gill, kidney ...201223063109
a cross-sectional study on the potential transmission of the carcinogenic liver fluke opisthorchis viverrini and other fishborne zoonotic trematodes by aquaculture fish.throughout southeast asia and china, eating raw and or partially cooked cyprinid fish causes liver (hepatobiliary) disease and cancer (cholangiocarcinoma) due to fishborne zoonotic trematodes (fzt), in particular clonorchis sinensis and opisthorchis viverrini. the primary source of transmission is by native fish, but aquaculture fish are also reported to have high infective potential. here, a cross-sectional survey of fzt in fish farms was conducted in an endemic area in khon kaen province, thai ...201323320421
analysis of lactate and malate dehydrogenase enzyme profiles of selected major carps of wetland of calcutta.the east calcutta wetland (ecw), a ramsar site in india, acts as the only sink for both city sewages as well as effluents from the surrounding small-scale industries and is alarmingly polluted with heavy metals. the three best edible major carp species rohu (labeo rohita,), catla (catla catla,) and mrigala (cirrhinus mrigala) were undertaken to monitor lactate dehydrogenase (ldh) and malate dehydrogenase (mdh) by cellulose acetate electrophoresis (cae) to assess the effects of pollutants, if any ...201223360005
record of the species of tripartiella (lom, 1959) from fishes of manipur.survey on trichodinid ciliophorans from the fresh water fishes of manipur revealed three known species of the genus tripartiella from the gills of major carps labeo rohita (hamilton); cirrhinus mrigala (hamilton); catla catla and ciprinus carpio. these are redescribed in this communication.201223542123
glycoproteins in the buccal epithelium of a carp, cirrhinus mrigala (pisces, cyprinidae): a histochemical profile.glycoproteins (gps) were visualized histochemically in the secretory cells - the mucous goblet cells (the type a and the type b), the rodlet cells and the epithelial cells in different regions of the buccal cavity of cirrhinus mrigala. the type a mucous goblet cells, the type b mucous goblet cells, the rodlet cells and the epithelial cells elaborate gps with oxidizable vicinal diols and gps with sialic acid residue without o-acyl substitution. the type a mucous goblet cells, in addition, contain ...201423551209
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