A total of eighteen fishes belonging to two families Claridae and Chichlidae were encountered in this study. Out of the eighteen fishes, nine (50%) were found to harbour mostly parasites of the class Nematoda
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.
