Question

how is hormonal stimulation done in fishes

Answer 1

Hormonal stimulation of fishes is done to mature sex cells artificially. Hormones and methods used for stimulation slightly vary for different species of fishes. Hormone that could be used for stimulation is Luteinizing hormone (LH) that trigger ovulation

Answer 2

Hormonal stimulation involves the activities that lead to the maturation of the fish sex cells. The sex cells are artificially expressed from the fish and then treated by the luteinizing hormone. This is done in controlled fish breeding methods.