| 肉种鸡血浆极低密度脂蛋白质量浓度双向选择的效应 |
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| 引用本文： | 龚道清,张军,李辉.肉种鸡血浆极低密度脂蛋白质量浓度双向选择的效应[J].中国兽医学报,2007,27(3):369-372. |
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| 作者姓名： | 龚道清 张军 李辉 |
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| 作者单位： | 1. 扬州大学,动物科学与技术学院,江苏,扬州,225009
2. 东北农业大学,动物科学与技术学院,黑龙江,哈尔滨,150030 |
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| 基金项目： | 黑龙江科技厅资助项目;江苏省教育厅资助项目 |
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| 摘 要： | 以父母代肉种鸡为材料，以血浆极低密度脂蛋白（very low density lipoprotein，VLDL）质量浓度为选择指标建立肉鸡高脂系和低脂系，个体测定一世代高、低脂系母鸡产蛋性能、种蛋受精率、孵化率、二世代6周龄体质量，观察血浆VLDL质量浓度选择效应。结果显示，一世代低脂系比高脂系早开产6．7d，低脂系40周龄和54周龄产蛋量显著高于高脂系零世代，一世代低脂系种蛋受精率、受精蛋孵化率、入孵蛋孵化率均优于高脂系；二世代高、低脂系6周龄体质量差异不显著。结果表明，对血浆VLDL质量浓度的低向选择使种鸡产蛋性能、种蛋受精率、孵化率产生了有益的间接反应，但对早期体质量没有影响。
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| 关 键 词： | 肉种鸡 血浆VLDL质量浓度 产蛋性能 受精率 孵化率 选择效应 |
| 文章编号： | 1005-4545(2007)03-0369-04 |
| 修稿时间： | 2005-08-29 |
Effects of divergent selection by plasma very low density lipoprotein concentration in broilers |
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| GONG Dao-qing,ZHANG Jun,LI Hui.Effects of divergent selection by plasma very low density lipoprotein concentration in broilers[J].Chinese Journal of Veterinary Science,2007,27(3):369-372. |
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| Authors: | GONG Dao-qing ZHANG Jun LI Hui |
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| Institution: | 1. College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China 2. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China |
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| Abstract: | The chickens studied were from white feather meat-type parents. Fat and lean lines were established using the plasma VLDL concentration as selection criterion. Egg performance, fertility and hatchability of eggs layed by hens in fat line and lean line were measured individually.Selective effects of the egg performance, fertility and hatchability in G1 generation,the body weight at 6 weeks of age in G2 generation between the high and low fat line were compared. The results showed: In G1 generation, day-old of 50% egg production was 6.7 days less in lean than fat line, egg production for 40 weeks and 54 weeks was significantly higher in lean line than fat line. There were better fertility and hatchability of eggs layed by hens in lean line than in fat line in G1 generation.No significant body weight difference between the lean line and fat line was found in G2 generation. The resutls indicated that the selection towards the low plasma VLDL concentration may bring the beneficial indirect effect for laying performance, fertility and hatchability of setting eggs,but no effect on its early body weight. |
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| Keywords: | broiler breeders plasma VLDL concentration egg performance fertility hatchability selectiveeffects |
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