Induced Spawning of Labeo Rohita Using Synthetic Hormones

“Ovaprim-C” manufactured by a Canada-based company, M/s Syndel laboratories, is in use world over today for induced spawning of fishes. Ovaprim-C contains 20 μg of Salmon gonadotropin releasing hormone (GnRH) and 10 mg of domperidone ml. The high cost and viscosity of Ovaprim proved a prohibitive factor. Another synthetic hormone “Ovatide” has been manufactured by a Mumbay based M/s Hemmo Pharma for the same purpose. The main ingredient of ovatide is a synthetic peptide protein, which is analogous to naturally occurring gonadotropin releasing hormone GnRH and dopamine antagonist. Ovatide composed of 20 μg of Salmon GnRH and 10 mg of domperidone per milliliter. However, Ovatide is cheap and less viscous as compared to Ovaprim. Present research was planned to work out the efficacy and usefulness of both the hormones using Rohu (Labeo rohita) at Government Fish Seed Hatchery, Bahawalpur, Punjab. A comparison was carried out for both the drugs for fecundity, fertilization, and hatching rate during the induced spawning of rohita administered single dose of each hormone. Ovatide performed much better than Ovaprim.