TYPES OF HORMONES USED IN
INDUCING REPRODUCTION
For hormone induced reproduction
(semi artificial or artificial) the following hormones are generally used;
v DOCA
(Desoxycorticosteroid Acetate), 2.5-5 mg per 100 gram of female. A disadvantage
of using this hormone is that it is mostly suspended in oil which causes severe
ulcers on the injected female.
v HCG
(Human chorionic Gonadotropin), 25 I.U. per 100 gram of female. This hormone
works well but it is expensive.
v Common
carp (cyprinus carpio) pituitary
gland material, 3-4 mg per kilogram of female or 1-2 whole pituitaries per
female. In general, the common carp pituitary gland material has to be imported
from aboard which means that it is usually not accessible for small fish farms.
v Pituitaries of the Africa catfish (C. gariepinus). A female catfish will
respond once it is injected with a pituitary of acatfish (male or female) of
equal size. Most commonly sued in Nigeria is ovaprim.
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