摘要
用人绒毛膜促性腺激素(HCG)、促黄体素释放激素类似物(LRH-A2)、马来酸地欧酮(DOM)组合对尖头金线鲃(Sinocyclocheilus oxycephalus)催产获得成功,用鲤脑垂体5mg/kg和人绒毛膜促性腺激素1000IU/kg组合催产失败。采取2次注射(第1次注射LRH-A22μg/kg,第2次注射LRH-A28μg/kg+DOM3mg/kg+HCG1000IU/kg)催产效果明显;采取遮光孵化,孵化率明显提高。
Artificial reproduction of Sinocyclocheilus oxycephalus was tried in October and November, 2007. S. oxycephalus was collected from Heilongtan Reservoir in Shilin County, Yunnan Province, cultured in down-dam ponds simulating natural condition （600 m2 , water depth 1.0 m, with continuous water flow） and fed with commercial pellets containing 32% crude protein and 12% crude lipid. Matured individuals （males should be over 100 g/ ind. , 2 years old, and females, over 150 g/ind. , 3 years old） were selected and injected with hormone. Injection with 1 000 IU/kg HCG plus 5 mg/kg carp PG was failed to induce spawning, while injection with mixture of HCG, LRH-A2 and DOM induced spawning successfully. Double injections, first time with LRH-A2 2 μg/kg, second time with mixture of LRH -A2 8 μg/kg ＋ DOM 3 mg/kg ＋ HCG 1 000 IU/kg, had a good inducing result. During hatching, shading will improve hatching rate which is obviously higher than unshading one.
出处
《水生态学杂志》
北大核心
2009年第4期143-145,共3页
Journal of Hydroecology
关键词
尖头金线鲃
人工繁殖
催产
孵化
Sinocyclocheilus oxycephalus
Artificial reproduction
Induced spawning
Hatching
