纯系蛋鸡不同产蛋周龄蛋品质变化规律研究

发布时间：2018-12-15 12:30

【摘要】：为进一步分析纯系蛋鸡育种群体的品系特性,以新杨绿壳纯系蛋鸡和洛岛红纯系蛋鸡为研究对象,比较两个纯系3个产蛋周龄(26、40和60周龄)的蛋品质。结果:(1)新杨绿壳纯系蛋鸡除了蛋壳比例以外,其他指标均受产蛋周龄的极显著影响,蛋重和蛋黄比随着周龄的增加而增加,而蛋黄颜色、蛋白高度、哈夫单位和蛋壳强度随着周龄增加而下降;40周龄蛋壳厚度和蛋壳重显著高于其他周龄(P0.01)。(2)洛岛红蛋鸡的蛋黄比、蛋白高度、蛋壳重和哈夫单位与前者相同;40和60周龄蛋黄颜色极显著低于26周龄(P0.01);40周龄蛋重和蛋壳比例显著大于26和60周龄(P0.01);26周龄蛋壳强度极显著高于其他周龄,40周龄蛋壳强度最低。综上,纯系蛋鸡26周龄内部蛋品质最好。
[Abstract]:In order to further analyze the strain characteristics of pure layer breeding population, the egg quality of two pure lines (2640 and 60 weeks old) was compared with that of Luodaohong pure layer and Xinyang green shell layer. Results: (1) except the proportion of egg shell, the egg weight and yolk ratio increased with the increase of egg age, and the color of egg yolk and the height of egg protein were significantly affected by the egg weight and yolk ratio. The strength of Hafu unit and eggshell decreased with the increase of week age. The egg shell thickness and eggshell weight at 40 weeks of age were significantly higher than those of other week-old (P0.01). (2) Luodao red laying hens, and the egg yolk ratio, protein height, eggshell weight and Hafu unit were the same as those of the former. The yolk color at 40 and 60 weeks was significantly lower than that at 26 weeks (P0.01), the egg weight and egg shell ratio at 40 weeks were significantly higher than those at 26 and 60 weeks (P0.01), the eggshell strength at 26 weeks was significantly higher than that at other weeks, and the eggshell strength at 40 weeks was the lowest. In conclusion, the inner egg quality of pure line hens was the best at 26 weeks old.
【作者单位】：上海市农业科学院;云南农业大学动物科学技术学院;国家家禽工程技术研究中心;
【基金】：上海科技兴农种业项目(沪农科种字(2014)第5号) 现代农业产业技术体系建设专项资金(CARS-41-K05) 上海市农业科学院卓越团队建设计划资助
【分类号】：S831

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