2000•Shuichan ke ji qingbaoRequires access
Study on Male Rate, Growth Rate and Early Survival Rate of Hybrids [ Oreochromis niloticus (♀)×O.Aureus ()] from Different Parental Combinations
Ze Zhu
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Abstract
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.