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血浆VLDL浓度双向选择对蛋鸡生产性能的影响 被引量:1

Effect of plasma VLDL concentration selecting on performance of layer chickens
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摘要 以雅发褐壳蛋鸡为供试材料 ,在零世代和一世代双向选择的基础上 ,应用血浆极低密度脂蛋白(VLDL)浓度对体腹脂性状继续进行双向选择 ,比较了高低脂系的生产性能 ,并研究了二世代母鸡中后期血浆VLDL浓度与上述性状的相关程度 ,进一步探讨了血浆VLDL浓度的双向选择效应。研究结果表明 ,二世代前期(19~ 4 3周 )产蛋量高脂系较高 (P <0 .0 5 ) ,在中后期 (44~ 6 2周 )低脂系产蛋量较高 (P <0 .0 5 ) ,全期 (19~ 6 2周 )产蛋量高、低脂系间差异不显著 (P >0 .0 5 ) ;二世代母鸡血浆VLDL与前期 (19~ 4 3周 )产蛋量呈显著的正表型相关 (P <0 .0 5 )和中等程度的正遗传相关 ,与中后期 (44~ 6 2周 )产蛋量呈显著的负表型相关 (P <0 .0 5 )和中等程度的负遗传相关 ,与全期产蛋量呈极低的正表型相关 (P >0 .0 5 )和正遗传相关。二世代母鸡蛋重低脂系较高 ,但两系间差异不显著 (P >0 .0 5 )。血浆VLDL浓度与蛋重呈较低的负表型相关和中等程度的负遗传相关 ,表明对血浆VLDL浓度的低向选择有可能使中后期蛋重提高。
出处 《江苏农业科学》 CSCD 北大核心 2004年第5期88-91,共4页 Jiangsu Agricultural Sciences
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二级参考文献4

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  • 2团体著者,家畜生理学,1980年
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