Journal of Aquaculture (한국양식학회지)
- Volume 5 Issue 2
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- Pages.109-115
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- 1992
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- 1226-0193(pISSN)
Induced and Multiple Spawnings by Human Chorionic Gonadotropin Injection of the Loach, Misgurnus mizolepis (Teleostomi : Cobitidae)
태반성 성선 자극 호르몬 (Human Chorionic Gonadotropin) 처리에 의한 미꾸라지의 산란 유도 및 연중 다산란 유도를 위한 연구
- KIM Dong Soo (Department of Aquaculture, National Fisheries University of Pusan) ;
- KIM Jong Hyun (Department of Aquaculture, National Fisheries University of Pusan) ;
- PARK In-Seok (Marine Biotechnology Lab., KORDI)
- Published : 1992.11.01
Abstract
Effects of intraperitonial injections of human chorionic gonadotropin (HCG) on ovulation and spawning of the loach, Misgurnus mizolepts, were investigated. Matured females spawned successfully by a single dose of 6 IU (HCG) per gram body weight. Spawning usually occured 13 to 25 hours after hormone injection. Most of the eggs were fertilized and hatched normally. Fertilization rate, hatching percentage and Pseudo-gonadosomatic index were not correlated with increasing HCG doses. For the study of multiple spawning of this species, fatness, hepatosomatic and gonadosomatic indices of artificially spawned females were checked for 42 days after first spawning. According to this result, females could spawn again 40 days after first spawning.
미꾸라지 양식시 기본 요건인 종묘의 안정적 공급을 위하여 호르몬 처리에 의한 산란 유도와 연중 다산란 유도 가능성을 조사하였다. 미꾸라지는 어체중 g당
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