平武红鸡的选育研究

发布时间：2018-01-19 16:14

本文关键词： 平武红鸡表型选育提纯均匀度　出处：《家畜生态学报》2017年05期 　论文类型：期刊论文

【摘要】：为提高平武红鸡的外观一致性与种源纯度,并充分挖掘平武红鸡的资源价值,对平武红鸡开展了3个世代的表型选育。研究采用个体表型选择,筛淘羽色、胫色和肤色等质量性状不符个体,并对繁殖性能和生长性能等指标进行了测定。结果表明,经选育平武红鸡的表型杂合率由G0世代的31.38%分别降至G1、G2、G3世代的1.55%、0.88%和0.34%,外观一致性提升显著(P0.05)。平武红鸡种蛋受精率由81.1%提升至91.23%,孵化率也超过85%。自4周龄起公鸡体重开始显著高于母鸡(P0.05),而各羽色母鸡间差异不显著(P0.05)。总之,经过3个世代的高强度选育,平武红鸡纯度提升明显,为平武红鸡的优势性状挖掘与利用奠定了基础。
[Abstract]:In order to improve the appearance consistency and provenance purity of Pingwu Red Chicken and fully tap the resource value of Pingwu Red Chicken, three generations phenotypic breeding of Pingwu Red Chicken was carried out. Individual phenotypic selection was used to screen the feather color. The quality characters such as shank color and skin color were not individual, and the reproductive performance and growth performance were measured. The phenotypic heterozygosity of Pingwu Red Chicken was decreased from 31.38% in G0 generation to 1.550.88% and 0.34% in G1G2G3 generation, respectively. The appearance consistency was improved significantly (P0.05). The fertilization rate of Pingwu red chicken eggs increased from 81.1% to 91.23%. The hatching rate was also over 85.The weight of the cock was significantly higher than that of the hen (P0.05) since the age of 4 weeks, but there was no significant difference among the hens. After three generations of high intensity breeding, the purity of Pingwu Red Chicken was improved obviously, which laid a foundation for the mining and utilization of the dominant traits of Pingwu Red Chicken.
【作者单位】：绵阳市农业科学研究院畜牧研究所;绵阳市畜牧兽医站;
【基金】：四川省科技厅应用基础研究面上项目(2017JY0114) 绵阳市农业科学研究院科技创新项目基金(2014011)
【分类号】：S831
【正文快照】： 中国是鸡种资源最丰富和驯化最早的国家之一,列入2014年农业部《国家级畜禽遗传资源保护名录》的国家级地方鸡种就有22个,其他地方鸡种多达百余个。《全国肉鸡遗传改良计划(2014-2025)》预计到2025年将培育肉鸡新品种40个以上[1],因此利用好地方鸡种质资源至关重要。为充分利

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