气候是否影响台湾长白母猪残馀凋落物性状的变异?

IF 1.2 4区 农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Kai-Hsiang Lin, Ruei-Syuan Wu, E. Lin
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引用次数: 0

摘要

热胁迫对台湾主要坝种长白的产仔性状有不利影响。本研究旨在评估热应力在母猪怀孕期间的影响,以估计台湾长白种的遗传参数。收集了2008年至2021年11657窝垃圾的性能记录和天气数据。气候效应是按比例定义的,从凉爽到炎热的气候1到5。齐次残差分析表明,总出生数(TNB)和活产数(NBA)的遗传力分别为0.164±0.014和0.111±0.014,残差方差分别为10.338和9.164。异质残差分析表明,TNB和NBA的残差方差分别为8.934-11.113和8.196-9.810。TNB的群体年气候效应残差方差在气候1和气候3-5中存在显著差异(p<0.01)。在NBA中,气候1和2的残差方差显著低于气候3和5(p<0.01),因此,TNB和NBA的遗传力是估计的。此外,在异质残差分析中,残差方差可能与气候效应相互作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Does the climate influence the variance of residual in litter traits of Taiwan Landrace sows?
Heat stress adversely affects the litter traits of Landrace, the primary dam breed in Taiwan. This study aimed to evaluate the effects of heat stress during sow pregnancy with homogeneous and heterogeneous residuals to estimate the genetic parameters of the Taiwan Landrace. Performance records for 11,657 litters and weather data from 2008 to 2021 were collected. The climate effect was defined proportionally from cool to hot for climates 1 to 5. The homogeneous residual analysis showed that the heritabilities of the total number born (TNB) and number born alive (NBA) were 0.164 ± 0.014 and 0.111 ± 0.014 with residual variances of 10.338 and 9.164, respectively. The heterogeneous residual analysis showed that, the residual variances for TNB and NBA were 8.934-11.113 and 8.196-9.810, respectively. For TNB, the residual variance in the Herd-Year-Climate effect differed significantly in climate 1 from climates 3 to 5 (p < 0.01). In NBA, the residual variance was significantly lower in climates 1 and 2 than in climates 3 and 5 (p < 0.01). In conclusion, heritability was estimated for TNB and NBA. In addition, residual variances could interact with the climate effect in heterogeneous residual analysis.
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来源期刊
Canadian Journal of Animal Science
Canadian Journal of Animal Science 农林科学-奶制品与动物科学
CiteScore
2.30
自引率
0.00%
发文量
51
审稿时长
6 months
期刊介绍: Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.
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