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银鲫不同雌核发育系的生物学特性比较研究
Authors
朱蓝菲
蒋一珪
Publication date
1 January 1993
Publisher
Abstract
银鲫不同雌核发育系间,以D系银鲫体型最高,其相对体高平均为47%,A系为44.4%,C系为43.7%,B系为41.7%。在生长速度方面以D系生长最快,其次为A系,这两个系的银鲫在含肉量与肌肉蛋白质含量上均无明显差异,但D系银鲫对饵料的利用效率明显高于A系,因此生产上养殖以D系银鲫为母本,红鲤为父本人工繁殖而成的高体型异育银鲫,可提高经济效益10—20%。银鲫4个雌核发育系的卵巢发育进程不同,D系卵母细胞在2月份有个迅速发育期,因而最早进入成熟产卵期。A系成熟产卵期略晚,C系成熟产卵期较迟。银鲫染色体数目
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Institute of Hydrobiology, Chinese Academy Of Sciences
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Last time updated on 15/03/2018