Controlled reproduction in African catfish Clarias gariepinus

This breeding experiment is divided into three trial groups. The first trial group consist of 2 males and 3 females Clarias gariepinus which were injected with a calculated amount of synthetic hormone (Human chronic Gonadotropin) according to their measured weight. In the second trial group, there are also 2 females and 3 females C. gariepinus which were injected with a calculated amount of natural hormone (Pituitary extract). The third trial group consist of 2 males and 3 females C. gariepinus which were not injected with anything and therefore serves as control. 85% fertilized eggs were obtained on the synthetic treated C. gariepinus¸while 70% fertilized eggs were obtained on natural hormone treated C. gariepinus. The control trial group yielded no eggs. A one way of variance (ANOVA) conducted between the synthetic and natural hormones induce trial concludes that there is no significant difference between the treatment (P>0.05).

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43-45
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