通过背膘厚度表型分析蛋鸡体储的遗传背景

Peer community journal Pub Date : 2024-04-04 DOI:10.24072/pcjournal.412

N. Bedere, Joëlle Dupont, Y. Baumard, Christophe Staub, D. Gourichon, Elleboudt Frédéric, Pascale Le Roy, Tatiana Zerjal

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摘要

在这项研究中，我们有三个主要目标：首先，测试和验证背膘厚度作为蛋鸡整体肥胖指标的表型；其次，估计该性状的遗传参数；第三，研究该性状与其他与生产和身体组成相关的性状之间的表型和遗传关系。为了解决这些问题，对两个品系的母鸡进行了体重、体成分性状（背脂、总脂肪量和血液脂肪因子水平）和蛋数的表型分析。线性混合模型可以估计方差成分并计算

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Genetic background of body reserves in laying hens through backfat thickness phenotyping

In this study, we pursued three primary objectives: ﬁrstly to test and validate the pheno-typing of backfat thickness as an indicator of the overall fatness of laying hens; secondly, to estimate genetic parameters for this trait; thirdly, to study the phenotypic and genetic relationships between this trait and other traits related to production and body composition. To address these questions, hens from two lines under divergent selection for residual feed intake, were phenotyped for body weight, body composition traits (backfat, total fat volume, and blood adipokines levels), and egg number. Linear mixed models enabled to estimate variance components and calculate

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Peer community journal

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