Induction of Ovulation in Tawes, Puntius gonionotus Bleeker by Analogue of LH-RH

Abstract

A study on effect of LH-RH analogue,[D-ser(Bu^t)⁶]LH-RH (1-9) ethylamide (Hoe 766) on ovulation of Tawes, Puntius gonionotus Bleeker was conducted at Aquaculture Department, Faculty of Fisheries, Kasetsart university in June, 1984. The results showed that LH-RH analogue alone could not induce ovulation of Tawes, whereas injection of 100, 150, 210 µg/kg of this hormone preceded the injection of 5 mg/kg progesterone with 6 hours interval yielded successful ovulation. It was concluded that LH-R analogue compared to only a single injection of pituitary suspension with the same successful ovulation result.