鲁西黑头羊早期生长发育规律及出栏标准研究  

The patterns of early growth and development of Luxi black-head sheep and the standards for herding

作　　者：侯国生 李长磊 张东福 王兆烂 HOU Guosheng;LI Changlei;ZHANG Dongfu;WANG Zhaolan(Animal Husbandry and Veterinary Industry Development Center,Dongchangfu District,Liaocheng City,Shandong Province,Liaocheng 252000,China;Xingtang Animal Husbandry Co.,Ltd.,Liaocheng City,Shandong Province,Liaocheng 252000,China;Bureau of Agriculture and Rural Affairs,Liaocheng City,Shandong Province,Liaocheng 252000,China)

机构地区：[1]山东省聊城市东昌府区畜牧兽医事业发展中心,山东聊城252000 [2]山东聊城兴堂牧业有限公司,山东聊城252000 [3]山东省聊城市农业农村局,山东聊城252000

出　　处：《养殖与饲料》2024年第2期1-4,共4页Animals Breeding and Feed

基　　金：聊城市重点研发计划(农业良种工程2021LZ03);山东省科技创新引导计划(2020KJYPY050)。

摘　　要：[目的]探究鲁西黑头羊早期生长发育规律,分析育肥最佳出栏时间和体质量,提高鲁西黑头羊养殖综合效益。[方法]选择1日龄鲁西黑头羊羔羊100只,全舍饲饲养条件下测量不同生长发育阶段体尺、体质量等生产性能指标,并结合育种资料进行统计学分析。[结果]鲁西黑头羊公、母羊初生至周岁前各阶段体质量差异显著,周岁至成年体质量差异极显著。初生体质量与3月龄、成年体质量;3月龄与周岁体质量;6月龄与周岁、成年体质量;周岁与成年体质量都呈极显著正相关。鲁西黑头羊公、母羊出生至6月龄体质量呈直线上升趋势,平均日增质量达274 g以上,6月龄平均体质量达45 kg以上,8月龄开始生长速度有所减缓。[结论]鲁西黑头羊早期生长发育速度快,具备专门化肉羊品种的特点,育肥期6~7月龄,体质量49 kg左右出栏,可实现育肥效益最大化。[Objectives]The patterns of early growth and development of Luxi black-head sheep were studied and the optimal time and body mass for herding was analyzed to improve the compre-hensive benefits of breeding the Luxi black-head sheep.[Methods]100 one-day-old Luxi black-head lambs were selected to measure the production performance indexes including body size and body mass at different stages of growth and development under full house feeding conditions.Statistical analyses were conducted based on breeding data.[Results]There were significant differences in body mass between the male and female Luxi black-head sheep at different stages from birth to one year old,and extremely significant differences in body mass from one year old to adulthood.There was a highly significant positive correlation between the body mass of birth and 3 months of age and adult-hood,body mass of 3 months of age and one year old,body mass of 6 months of age and one year old and adult,body mass of one year old and adult.The body mass of male and female Luxi black-head sheep had a linear upward trend from birth to 6 months of age.The average daily weight gain was over 274 g,and the average body weight at 6 months of age was over 45 kg.The growth rate slowed down from 8 months old.[Conclusions]The speed of early growth and development in Luxi black-head sheep was fast,with the characteristics of specialized meat sheep breeds.The fattening pe-riod is 6-7 months old,with a body mass of about 49 kg for herding,which can achieve the maxi-mum benefits of fattening.It will provide the theoretical basis for the further breeding,improvement and comprehensive utilization of Luxi black-head sheep.

关 键 词：鲁西黑头羊 体尺 体质量 生长发育规律 出栏标准 

分 类 号：S826[农业科学—畜牧学]