林甸鸡蛋品质性状的遗传参数估计

发布时间：2018-01-19 00:11

本文关键词： 林甸鸡蛋品质遗传参数　出处：《中国畜牧杂志》2017年09期 　论文类型：期刊论文

【摘要】：为提高林甸鸡蛋品质性状的选育效果,实验选择300日龄林甸鸡,基于动物模型利用REML方法对蛋重(EW)、蛋黄重(YW)、蛋黄比例(AY)、蛋壳重(ESW)、蛋壳强度(ESS)、蛋壳厚度(EST)、蛋白高度(AH)、哈氏单位(HU)、纵径(ELL)、横径(ESL)和蛋形指数(ESI)等11个主要性状进行遗传参数估计。结果表明:除ESS性状的遗传力较低外(h~2=0.15),其余蛋品质性状都属于中等或高等遗传力性状;EW与描述鸡蛋内部特征的YW、AH,以及描述鸡蛋外部特征的ESW、ELL、ESL等性状存在显著的正遗传相关(P9.1E-4),且遗传相关较高;ESW、ESS和EST 3个性状间呈显著正遗传相关。
[Abstract]:In order to improve the breeding effect of egg quality traits in Lindian, 300-day-old Lindian hens were selected. Based on the animal model, the egg weight, yolk weight and yolk ratio of EWN, yolk and yolk were determined by using REML method based on animal model. Egg shell weight, egg shell strength, egg shell thickness, egg shell thickness, protein height, Hull, Hull, vertical diameter of ELL). ESL) and egg shape index (ESI) were used to estimate the genetic parameters. The results showed that the heritability of ESS was lower than that of ESI (0.15). The other egg quality traits were middle or high heritability traits. There was a significant positive genetic correlation between EW and YWN AH, and ESWL ELLE ESL, which described the internal characteristics of eggs, respectively (P9.1E-4). The genetic correlation was higher. There was a significant positive genetic correlation between ESS and EST.
【作者单位】：农业部鸡遗传育种重点试验室黑龙江省普通高等学校动物遗传育种与繁殖重点试验室东北农业大学动物科学技术学院;
【基金】：现代农业产业技术体系建设项目(CARS-42)
【分类号】：S831.2
【正文快照】： 林甸鸡是在我国北方地区寒冷气候条件下,经长期选择形成的优良地方鸡种之一,主产区位于黑龙江省林甸县及周边地区。该品种收录于《中国家禽品种志》(1988)、《中国畜禽遗传资源志:家禽志》(2010)及“国家级畜禽遗传资源保护名录”(2014)。林甸鸡属中等体型,羽色以深麻黄、浅麻

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