摘要
【目的】为探究非遗传因素对羔羊初生重的影响,对肉用的杜泊羊和湖羊的初生重进行测定,分析了两个品种间初生重的差异。【方法】利用SAS9.2软件进行最小二乘方差分析。【结果】杜泊羊的初生重极显著高于湖羊(P<0.01),且出生年份、性别和出生类型对于杜泊羊和湖羊的初生重均有极显著性影响(P<0.01);出生月份对于湖羊和杜泊羔羊的初生重均有显著性影响(P<0.05)。【结论】出生年份、月份、性别、出生类型等非遗传因素对不同绵羊品种初生重影响不同,在估算种羊初生重的遗传参数时,应考虑到非遗传因素的影响,从而对育种值进行准确的估算。
【Objective】In order to explore the influence of non-genetic factors on birth weight of lambs,the birth weights of Dorper sheep and Hu sheep for meat were determined,and the difference of birth weight between the two breeds was analyzed.【Methods】The least square analysis of variance was performed by SAS9.2 software.【Results】The results showed that the birth weight of Dorper sheep was extremely significantly higher than that of Hu sheep(P<0.01).Birth year,sex and birth type had significant effects on the birth weight of Dorper sheep and Hu sheep(P<0.01).The birth month had a significant effect on the birth weight of both Hu sheep and Dorper lambs(P<0.05).【Conclusions】Non-genetic factors such as birth year,month,sex,and birth type had different effects on the birth weight of different sheep breeds,and the influence of non-genetic factors should be considered when estimating the genetic parameters of birth weight of breeding sheep,so as to accurately estimate the breeding value.
作者
李延伸
才加甫
张梦华
木合塔帕·买买提江
陈雪艳
孙子涵
杨会国
依明·苏来曼
LI Yanshen;CAI Jiafu;ZHANG Menghua;MUHETAPA·Maimaitijiang;CHEN Xueyan;SUN Zihan;YANG Huiguo;YIMING·Suleiman(College of Animal Science,Xinjiang Agricultural University,Urumqi 830052 China;Xingmuyuan Agricultural Liability Co.,LTD.,Bayingoleng Mongolian Autonomous Prefecture,Bohu,Xinjiang 841400,China;Institute of Animal Science,Xinjiang Academy of Animal Scienced,Urumqi 830011,China)
出处
《草食家畜》
2023年第4期1-7,共7页
Grass-Feeding Livestock
基金
上海合作组织科技伙伴计划及国际科技合作计划项目“肉羊遗传评估与分子育种服务平台的建立”(2020E01033)
新疆维吾尔自治区农区高效肉羊品种选育推广计划(2020-2025年)(xjnqry-g-2204)
2022年度新疆维吾尔自治区“天山英才”-“三农”骨干人才培养项目(2022SNGGNT071)。
关键词
非遗传因素
初生重
杜泊羊
湖羊
non-genetic factor
birth weight
Dorper sheep
Hu sheep
