Effect of two pesticides on ovarian 32P uptake and gonadotrophin concentration during different phases of annual reproductive cycle in the freshwater catfish, Heteropneustes fossilis (Bloch)

1980 ◽  
Vol 22 (1) ◽  
pp. 190-200 ◽  
Author(s):  
H. Singh ◽  
T.P. Singh
Keyword(s):  
Reproductive Cycle ◽  
Heteropneustes Fossilis ◽  
Annual Reproductive Cycle ◽  
Freshwater Catfish ◽  
32P Uptake

Thyroid hormone profile during annual reproductive cycle of diploid and triploid catfish, Heteropneustes fossilis (Bloch)

2006 ◽  
Vol 147 (2) ◽  
pp. 126-132 ◽  
Author(s):  
Angshuman Biswas ◽  
Samita Kundu ◽  
Sumedha Roy ◽  
Jhuma De ◽  
Mitali Pramanik ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Reproductive Cycle ◽  
Heteropneustes Fossilis ◽  
Annual Reproductive Cycle ◽  
Hormone Profile

EFFECT OF METHALLIBURE ON GONADOTROPHIC CONTENT, OVARIAN 32P UPTAKE AND GONADOSOMATIC INDEX IN THE FRESHWATER CATFISH, HETEROPNEUSTES FOSSILIS (BLOCH)

1977 ◽  
Vol 72 (3) ◽  
pp. 321-327 ◽  
Author(s):  
T. P. SINGH ◽  
R. B. RAIZADA ◽  
AJAY KUMAR SINGH
Keyword(s):  
Pituitary Gland ◽  
Blood Serum ◽  
Marked Reduction ◽  
Gonadosomatic Index ◽  
P Uptake ◽  
Ovarian Activity ◽  
Heteropneustes Fossilis ◽  
Freshwater Catfish ◽  
32P Uptake

SUMMARY Gonadotrophin content in the pituitary gland and blood serum as well as ovarian 32P uptake were studied in response to methallibure treatment in H. fossilis. There was a marked reduction in the gonadotrophic activity of the pituitary gland and blood serum within 3 weeks of methallibure treatment (100 μg/g). A simultaneous significant reduction was also recorded in the ovarian activity of these fish. The fall in ovarian activity caused by methallibure could not be prevented by the administration of LH, FSH or LH + FSH. After cessation of methallibure treatment, LH + FSH (50 μg each) administration restored ovarian activity. It is evident from these results that methallibure alters the secretion of gonadotrophin, and also prevents its action on the ovary.

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