Changes in Ovarian Maturity in the Tropical Walking Catfish, Clarias batrachus Reared under 23-25.DEG.C..
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Changes in Ovarian Maturity in the Tropical Walking Catfish ,
To investigate the changes in ovarian maturity in the tropical walking catfish, 15 females and 15 males (7 months old) were maintained under constant warm water temperature (23-25•Ž) and natural photoperiod until the age of 31 months old. Blood and ovarian oocytes were sampled monthly. Histological observation of the oocytes revealed that 10-31 months old females always possessed mature oocytes...
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In the present study, a total of 868 walking catfish, Clarias batrachus, were collected during the period of April, 2012 to March, 2015, to evaluate the prevalence of helminth parasites from different parts of Tripura, Northeast India. Of these, 606 fish were found to be infected with one genus of trematode viz., Astiotrema, two genera of cestode viz., Lytocestus and Djombangia and one genus of...
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1. Effects of endosulfan, malathion and carbaryl on circulating T4, T3 and T3/T4 ratio in the freshwater catfish, C. batrachus have been studied during reproductively active phases, i.e. vitellogenic and post-vitellogenic phases of its annual reproductive cycle. 2. Endosulfan provoked a significant increase in T4 and a decrease in T3 as well as the T3/T4 ratio. 3. Malathion decreased T3 and T3/...
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Blood is collected from experimental animals for a wide range of scientific purposes including; hematology, clinical biochemistry parameters, immunology, studies in bacteriology, parasitology and investigations in reproductive performance and health. The number of methods employed to collect blood from fish include; the puncture of caudal vein, dorsal aorta or cardiac vessels and the severance ...
متن کاملDistribution of External Taste Buds in Walking Catfish (Clarias batrachus) and Piranha (Serrasalmus nattereri)
Raji, A.R. and Norozi, E. 2010. Distribution of external taste buds in walking catfish (Clarias batrachus) and piranha (Serrasalmus nattereri). J. Appl. Anim. Res., 37: 49-52. To determine the distribution of external taste buds (TB), 3 specimen each of the two species of aquarium fishes: Walking catfish (Claris batrachus) and Piranha (Serrasalmus nattereri), were studied. In walking catfish TB...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1992
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.58.2033