饲养密度对夏季舍饲辽宁绒山羊生产性能的影响  

Effect of feeding density on production performance of Liaoning cashmere goats for house feeding in summer

作　　者：徐菁 姜怀志[3] 韩迪 朱延旭 全治国[5] 张明新[2] 王春昕[2] XU Jing;JIANG Huaizhi;HAN Di;ZHU Yanxu;QUAN Zhiguo;ZHANG Mingxin;WANG Chunxin(Changchun Vocational and Technical University,Changchun 130504,China;Animal Science Branch,Jilin Academy of Agricultural Sciences,Gongzhuling 136100,China;College of Animal Science and'Technology,Jilin Agricultural University,Changchun 130118,China;Moderm Agricultural Production Base Construction Engineering Center of Liaoning Province,Shenyang 110034,China;Liaoning Province Liaoning Cashmere Goat Original Seed Farm Co.,Ltd.,Liaoyang 111000,China)

机构地区：[1]长春职业技术学院,长春130504 [2]吉林省农业科学院畜牧科学分院,吉林公主岭136100 [3]吉林农业大学动物科学技术学院,长春130118 [4]辽宁省现代农业生产基地建设工程中心,沈阳110034 [5]辽宁省辽宁绒山羊原种场有限公司,辽宁辽阳111000

出　　处：《黑龙江畜牧兽医》2021年第22期32-36,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家绒毛用羊产业技术体系项目(CARS-39-17);吉林省创新工程项目(CXGC2018JC005);吉林省科技厅科技攻关项目(20190301005NY)。

摘　　要：为了探究全舍饲条件下辽宁绒山羊带羔母羊的饲养密度,试验将216只27月龄辽宁绒山羊母羊和180只3月龄断奶羔羊按照饲养密度随机分成2 m^(2)/只组、2.5 m^(2)/只组和3 m^(2)/只组,共3组,每组3个重复,每个重复成年母羊24只、羔羊20只。试验时间为2016年6月1日至8月31日,测定试验前以及试验期内每月月末试验羊只的体重、直肠温度和血清皮质醇含量,计算每月增重和总增重,分析不同饲养密度对上述指标的影响。结果表明:不同饲养密度下的断奶羔羊和母羊在试验期内体增重以及血清中皮质醇含量均无显著差异(P>0.05);但2 m^(2)/只组的断奶羔羊总增重高于其他两组,2.5 m^(2)/只组母羊总增重高于其他两组;3 m^(2)/只组断奶羔羊直肠温度显著低于其他两组(P<0.05)。说明2 m^(2)/只、2.5 m^(2)/只、3 m^(2)/只的饲养密度均可以满足辽宁绒山羊的生长需求,为了降低养殖成本,建议2 m^(2)/只的饲养密度。In order to explore the effect of feeding density on production performance of ewes of Liaoning cashmere goats with lambs under the condition of full house feeding,a total of 21627 months old Liaoning cashmere goat ewes and 180 three months old lambs were randomly divided into 3 groups:2 m^(2)/head group,2.5 m^(2)/head group and 3 m^(2)/head group.There were 3 replicates in each group with 24 adult ewes and 20 lambs in each replicate.The experimental time last from June 1,2016 to August 31,2016.The body weight,recal temperature and content of serum cortisol of test sheep was measured before the experiment and at the end of each month during the experiment period to calculate the monthly weight gain and total weight gain,and analyzed the effects of different stocking densities on these indicators.The results showed that there were no significant differences in the total gain of body weight,and the content of serum cortisol of weaned lambs and ewes under different feeding densities during the experiment period(P>0.05);but the total gain of body weight of weaned lambs in 2 m^(2)/group were higher than those in the other two groups,the total gain of body weight of ewes in 2.5 m^(2)/group was higher than that of the other two groups;the rectal temperature of weaned lambs was significantly lower than that of in the other two groups(P<0.05).The results indicated that the stocking density of 2,2.5,3 m^(2)/head could meet the growth needs of Liaoning cashmere goats,and in order to reduce the cost of breeding,the feeding density of 2 m^(2)/head is recommended.

关 键 词：辽宁绒山羊 饲养密度 生产性能 直肠温度 皮质醇 

分 类 号：S826[农业科学—畜牧学]