HORMONE INDUCED SPAWNING IN FISH
Keywords:
spawning, reliable, growth, impossible, fish gonadotropinAbstract
Commercially important tropical freshwater and marine fishes are spawned with pituitary homogenate , human chorionic gonadotropin ( HCG) and semi purified fish gonadotropin .
Many fish spawn in environments that are nearly impossible to stimulate in hatchery . Hormone induced spawning is the only reliable method to induce reproduction in fishes . Luteinizing hormone releasing hormone ( LHRHa) are widely used for inducing ovulation . For marine species such as milkfish , a single LHRHa injection appears to be affected .
The hormone secreted by pituitary gland stimulates growth development, maturity and Ovulation of eggs . These hormone secreted from pituitary are proteins or peptides.
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