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Seasonal reproductive activity in the testes and seminal vesicles of the catfish, Heteropneustes fossilis (Bloch)
Tests exhibit initiation of spermatogenesis in the mid‐preparatory period, but significant increase in weight of the testes accompanied by active sperMatogenesis occurs during the prespawning period, while seminal vesicles show initiation of secretory activity during the preparatory period. Expand
Effect of pituitary hormones, androgens, and corticosteroids on the seminal vesicles of the castrate catfish, Heteropneustes fossilis (Bloch).
The results suggest that following castration, the resulting high titers of gonadotrophin act on the interrenal cortical cells to produce androgens which, in turn, induce hyperactivity in the seminal vesicles. Expand
Effects of castration and-or hypophysectomy on the seminal vesicles of the catfish, Heteropneustes fossilis (Bloch).
Catfish castrated in the prespawning period of 1966 not only show hyperactive seminal vesicles in that season but also exhibit hypersecretory seminal vESicles in the following breeding season, in spite of the absence of the testes. Expand
Effects of estrogen, SU-9055, and cyproterone acetate on the hypersecretory activity in the seminal vesicles of the castrate catfish, Heteropneustes fossilis (Bloch).
The data indicate that following castration the high level of circulating gonadotrophin induces the interrenals to produce androgens which in turn bring about hypersecretion in the seminal vesicles. Expand
Effect of Extirpation of "Seminal Vesicles" on the Reproductive Performance of the Male Catfish, Heteropneustes fossilis (Bloch)
In teleosts the sex accessory glands attached to the base of the testes are generally called "seminal vesicles," even though they are not derivatives of the Wolffian duct (Weisel 1949). Expand
Hospital Waste Disposal: A Review Article
This i s a review pape r which i s p repa red f rom the surveys o f hospi t a ls and resea rch s tudies . Hosp i ta l was te management in t he wor ld i s a fo rmal d i sc ip l ine and does occupy a… Expand
Effects of exogenous gonadotrophins and gonadal hormones on the testes and seminal vesicles of hypophysectomized catfish, Heteropneustes fossilis (bloch).
While TP or HCG can reinitiate and restore spermatogenesis in the testes and secretory activity in the seminal vesicles of hypophysectomized catfish, FSH singly is virtually ineffective although it can synergize with HCG. Expand
Effects of salmon pituitary gonadotropin, ovine luteinizing hormone, and testosterone on the testes and seminal vesicles of hypophysectomized catfish, Heteropneustes fossilis (Bloch).
- B. I. Sundararaj, S. Nayyar, T. C. Anand, E. Donaldson
- Biology, Medicine
- General and comparative endocrinology
- 1 August 1971
The possibility of one functional gonadotropin regulating the whole maturation phenomenon in the male catfish is discussed, and a dose-dependent response in the testes and seminal vesicles is studied. Expand
Effects of carp gonadotropin on ovarian maintenance, maturation, and ovulation in hypophysectomized catfish, Heteropneustes fossilis (Bloch).
The present data show that c-GTH acts as a potent gonadotropin in the catfish. Expand
Effect of prolactin on the “seminal vesicles” and neural regulation of prolactin secretion in the catfish Heteropneustes fossilis (Bloch)
The results indicate that the neural control of prolactin secretion in the catfish is presumably accomplished by an inhibitory mechanism similar to that demonstrated in the mammals. Expand