摘要
杂交鲤1^#(高寒鲤♀×建鲤♂)、2^#(高寒鲤♂×建鲤♀)体色为青灰色,全鳞,纺锤形,杂交鲤3^#(高寒鲤♀×镜鲤♂)、4^#(高寒鲤♂×镜鲤♀)为纺锤形,一部分青灰色,全鳞,另一部分为淡黄色,散鳞。二龄鱼的体长/体高为2.28-2.80,体长/头长为3.40-3.75,尾柄长/尾柄高为1.02-1.22,空壳质量/体质量的指数为89.6%-91.5%。杂交鲤3#、4#生长快,群体产量比建鲤高11.3%-61.2%。几种杂交鲤抗寒力均较强,自然越冬成活率一、二龄鱼均超过95%,是适合北方地区养殖的优良鲤鱼杂交种。
The Hybrid No. 1 ( Cold tolerant common carp ♀ × Cyprinus carpio Var. jian ♂ ) and Hybrid No. 2 ( Cold tolerant common carp ♂ × Cyprinus carpio Var. jian ♀ ) were characterized by blue - grey in colour, whole scales and fusiform in body form. The Hybrid No. 3 ( Cold tolerant common carp ♀ × Cyprinus carpio L. mirror ♂ ) and hybrid No. 4( Cold tolerant common carp ♂ x Cyprinus carpio L. mirror ♀ ) had blue - grey to light yellowish body colour, and whole scales or scattered scales. The 2 - year old hybrids had a body length/body height ratio of 2.28 - 2.80, body length/head length of 3.40 - 3.75, caudal peduncle length/caudal peduncle height of 1.02 - 1.22, and the dressed/body weight of 89.6% -91.5%. There were better growth and 11.3% -61.2% higher yields in Hybrid No. 3 and Hybrid No. 4 than those in Cyprlnus carpio Var. jian. The 1 -2 year old hybrids had high cold - resistance with over 95% survival rate during wintering in ponds.
出处
《水产科学》
CAS
北大核心
2007年第11期619-621,共3页
Fisheries Science
关键词
杂交鲤
形态学
生长
越冬
hybrid
morphology
growth
cold - resistance