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Compensatory Hypertrophy Of The Remaining Ovary And The Effects Of Methallibure In The Unilaterally Ovariectomized Tilapia Aurea
(University of Nairobi, 1976)
In Tilapia aurea unilateral ovariectomy resulted in a compensatory hypertrophy of the remaining ovary. The compensatory hypertrophy is manifested by: (a) an increase in the number of dividing oogonia; and (b) hypertrophy ...
Histological studies on the testes of pond specimens of Tilapia nigra (Gunther) (Pisces: Cichlidae) and their implications of the pituitary-testis relationship
(University of Nairobi, 1970)
T. nigra pond specimens were studied histologically and histochemically to investigate the relative development of the spermatogenetic and the interstitial tissue elements. The earliest phases showed active spermatogenesis ...
Failure of mammalian TRH to stimulate thyroid function in the
(University of Nairobi, 1973)
Synthetic TRH in doses as high as 100 μg per 50 g (average) lungfish produced no change in radioiodine metabolism in the thyroid gland. In similar animals 1.0 IU of bovine TSH clearly was stimulatory.
Methallibure studies on Tilapia: II. Effect of tilapia pituitary homogenate (TPH), human chorionic gonadotropin (HCG) and testosterone propionate (TP) on the testes of Methallibure-treated Tilapia nigra
(University of Nairobi, 1974-07)
In Methallibure-suppressed T. nigra testes high and low doses of TPH and HCG stimulate a qualitatively similar reactivation of spermatogenesis resulting in a significant elevation of testicular weight and G.S.I.; interstitial ...
Effect of chorionic gonadotrophin on testicular histology and testosterone production in Tilapia leucosticta (Teleostei: Cichlidae
(University of Nairobi, 1970-10)
Eight adult male T. leucosticta were given daily injections of 500 IU human chorionic gonadotrophin (Pregnyl, Organon) intraperitoneally for 1 week. These fish showed marked increases in testicular size, gonosomatic index, ...
Methallibure studies on tilapia. III. Effects of tilapian partially purified pituitary gonadotrophic fractions on the testes of Methallibure-treated Sarotherodon spirulus (= Tilapia nigra)
(University of Nairobi, 1979-12)
Tilapian fish Sarotherodon spirulus (= Tilapia nigra) were treated with the gonadotrophic inhibitor, methallibure, for 9 weeks during the last 2 of which they were divided into a control group and 8 experimental groups. ...