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ARS Home » Southeast Area » Stoneville, Mississippi » Warmwater Aquaculture Research Unit » Research » Publications at this Location » Publication #341630
Research Project: Genetics, Breeding and Reproductive Physiology to Enhance Production of Catfish

Location: Warmwater Aquaculture Research Unit

Title: Hormone preparation, dosage calculation, and injection technique for induced spawning of foodfish

Author
item Chatakondi, Nagaraj
item BUTTS, IAN - Auburn University
item DUNHAM, REX - Auburn University

Submitted to: Southern Regional Aquaculture Center
Publication Type: Other
Publication Acceptance Date: 8/27/2017
Publication Date: 9/18/2018
Citation: Chatakondi, N.G., Butts, I.A., Dunham, R.A. 2018. Hormone preparation, dosage calculation, and injection technique for induced spawning of foodfish. Southern Regional Aquaculture Center. P. 1-6.

Interpretive Summary: Many fish species destined for farming or restoration do not reproduce under captive conditions and require either an environmental or hormonal manipulations or both to induce final maturation, accelerate and synchronize spawning. Ovulating hormones approved by FDA or exempted under Investigational New Animal Drug approval process are appropriate to induce spawn food fish. However optimal doses of ovulating hormones and conditions vary for different food fish species. Recent improvements on hormone induced-spawning of food fish that include approved hormones, dose, preparation, handling, and storage guidelines are suggested. These guidelines can be followed to propagate food fish species under controlled hatchery conditions. This publication will equip with basic knowledge to hormonally induce-spawn food fish species to maximize reproductive performance to meet their hatchery needs either for farming or stocking natural waters.

Technical Abstract: Reliable spawning and fry production of food species is critical for successful commercial production. Environmental stimuli often fail to trigger the requisite hormone cascades for gamete formation, final oocyte maturation, and ovulation in fish held under captive conditions. In general, environmental and hormonal manipulations are two means to reproduce fish under controlled conditions. Environmental manipulations can be time consuming, expensive, and unreliable. Hormone preparations for induced gamete development is a preferred method for propagation of several fish species. Hormones approved by US FDA or procured under INAD process. Recent improvements in hormone preparation, dosage calculation, and injection techniques for inducing food fish is provided in this publication.