摘要
用两种尼罗罗非鱼和两种奥利亚罗非鱼两两杂交产生 4个杂交组合。 (1)雄性率 :“吉爱×吉奥”>“吉富×吉奥”>“吉富×美奥”>“吉爱×美奥”(p<0 .0 1) ;(2 )绝对生长率 :“吉爱×美奥”>“吉爱×吉奥”>“吉富×美奥”>“吉富×吉奥”(p<0 .0 1) ;(3)早期成活率 :“吉爱×吉奥”>“吉富×美奥”>“吉富×吉奥”>“吉爱×吉奥”(p<0 .0 1)。“吉爱×吉奥”是生产高雄性尼奥杂交鱼最佳亲本组合 。
This paper reports the variation of male rate, growth rate and early survival rate of hybrids ( Oreochromis niloticus × O.Aureus ) from different parental combinations, e.g., GIFT Nile tilapia × Egypt blue tilapia, GIFT Nile tilapia × American blue tilapia, Egypt Nile tilapia × Egypt blue tilapia, Egypt Nile tilapia × American blue tilapia; (1) The male rate was ' Egypt Nile tilapia × Egypt blue tilapia ' > ' GIFT Nile tilapia × Egypt blue tilapia ' > ' GIFT Nile tilapia × American blue tilapia ' > ' Egypt Nile tilapia × American blue tilapia ' ( p< 0.01 ); (2) The absolute growth rate was ' Egypt Nile tilapia × American Blue tilapia ' > ' Egypt Nile tilapia × Egypt Blue tilapia ' > ' GIFT Nile tilapia × American Blue tilapia ' > ' GIFT Nile tilapia × Egypt Blue tilapia ' ( p< 0.01 ); (3) The early survival rate was ' Egypt Nile tilapia × Egypt Blue tilapia ' > ' GIFT Nile tilapia × American Blue tilapia ' > ' GIFT Nile tilapia × Egypt Blue tilapia ' > ' Egypt Nile tilapia × Egypt Blue tilapia ' ( p< 0.01 ). In general, ' Egypt Nile tilapia × Egypt Blue tilapia ' is the best combination for producing hybrids with high male rate. GIFT Nile tilapia also shows a high potential in this aspect.
出处
《水产科技情报》
2000年第2期54-58,共5页
Fisheries Science & Technology Information
关键词
亲本组合
雄性率
生长率
早期成活率
尼奥杂交鱼
Oreochromis niloticus(♀)×O.Aureus() Hybrids parental combination Male rate Growth rate Early Survival rate
