Effects of administration of testosterone on seminal vesicle activity in the catfish Clarias batrachus during preparatory phase: a study correlating changes in testis and serum sex steroid levels.
In the catfish Clarias batrachus administration of testosterone (0.25, 0.5 and 1.0 microgram/g BW for 30 days) during the preparatory phase increased significantly gonadosomatic index (GSI), seminal vesicle-somatic index (SV-SI) and concentrations of proteins, fructose, hexosamines, and sialic acid in the SV and testis in a dose-dependent manner. These stimulatory effects could be correlated positively with the increase of serum testosterone level. Serum estradiol-17 beta was also significantly high in the testosterone groups.
Singh
M S
MS
Department of Zoology, Banaras Hindu University, Varanasi, India.
Joy
K P
KP
D000704:Analysis of Variance; D000818:Animals; D002397:Catfishes / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D004958:Estradiol / Q000097:blood*; D005632:Fructose / Q000032:analysis; D006595:Hexosamines / Q000032:analysis; D008297:Male; D019158:N-Acetylneuraminic Acid / Q000032:analysis; D009929:Organ Size; D011863:Radioimmunoassay; D012669:Seminal Vesicles / Q000187:drug effects*; D013737:Testis / Q000187:drug effects*; D013739:Testosterone / Q000097:blood / Q000494:pharmacology*
D006595:Hexosamines; D005632:Fructose; D013739:Testosterone; D004958:Estradiol; D019158:N-Acetylneuraminic Acid