粗饲料对滩羊生产性能、肉品质及血清生化指标的影响  

Effects of roughage types on production performance,meat quality,and serum biochemical indices of Tan sheep

作　　者：李瑞国 杨慧超 妥强 杨晓斌 高巧仙 石柏灌[5] 辛国省 LI Ruiguo;YANG Huichao;TUO Qiang;YANG Xiaobin;GAO Qiaoxian;SHI Baiguan;XIN Guosheng(Ningxia Feed Engineering Technology Research Center,Ningxia University,Yinchuan 750021,Ningxia,China;Key Laboratory of Conservation and Utilization of Western Characteristic Biological Resources of the Ministry of Education,Ningxia University,Ningxia University,Yinchuan 750021,Ningxia,China;School of Life Science,Ningxia University,Yinchuan 750021,Ningxia,China;Agricultural College,Ningxia University,Yinchuan,750021,Ningxia,China;Ningxia Hiby Analysis&Test Institute,Yinchuan,750021,Ningxia,China)

机构地区：[1]宁夏大学饲料工程技术研究中心,宁夏银川750021 [2]宁夏大学西部特色生物资源保护与利用教育部重点实验室 [3]宁夏大学生命科学学院,宁夏银川750021 [4]宁夏大学农学院,宁夏银川750021 [5]宁夏昊标检测服务研究院,宁夏银川750021

出　　处：《草业科学》2023年第12期3177-3188,共12页Pratacultural Science

基　　金：宁夏重点研发计划项目“宁夏地源性饲料资源高效利用与转化关键技术研究与示范(2019BBF02016)”。

摘　　要：本试验旨在研究日粮中分别添加10%的柠条(Caragana korshinskii)、湖南稷子(Echinochloa frumentacea)、甘草(Glycyrrhiza uralensis)茎叶、枸杞(Lycium barbarum)枝条及葡萄(Vitis vinifera)藤条对滩羊生产性能、肉品质及血清生化指标的影响。试验选取健康、体况相近的雄性滩羊60只,随机分为6组,5个试验组和1个对照组。预饲期11d,正试期59 d。结果表明:1)在生产性能方面,枸杞枝条组平均日采食量最低,为1.30 kg,显著低于对照组及其他试验组(P<0.05);对照组与湖南稷子组平均日增重最高,分别为290.00和272.88 g,枸杞枝条组平均日增重最低,为227.33 g,对照组与湖南稷子相较于枸杞枝条差异显著(P<0.05)。2)在肉品质方面,柠条组肌肉胆固醇最低,为0.44 mg·g^(-1),显著低于对照组和其他试验组(P<0.05);湖南稷子组的肌肉肌苷酸含量最高,为4.12 mg·g^(-1),枸杞枝条组次之,为3.89 mg·g^(-1),显著高于柠条组(P<0.05)。3)在血清生化指标方面,湖南稷子组血清甘油三酯最高,为0.44mmol·L^(−1),显著高于甘草茎叶组及葡萄藤条组(P<0.05),但与照组差异不显著(P>0.05)。综上所述,不同粗饲料对滩羊生产性能、肉品质及血液中糖脂代谢具有一定影响,且柠条、湖南稷子、甘草茎叶、枸杞枝条及葡萄藤条可以缓解粗饲料来源不足所带来的问题,但在生产应用中也应该考虑部分粗饲料的添加在滩羊生产性能所表现的不足。This experiment aimed to study the effect of adding 10%Caragana korshinskii(CK group),Echinochloa frumentacea(EE group),Glycyrrhiza uralensis(GU group),Lycium barbarum branches(LB group),and Vitis vinifera(grape vines)(GV group)to the diet of Tan sheep,on the production performance,meat quality,and serum biochemical indices.For the experiment,60 healthy male Tan sheep with similar body condition(body weight 18.85 kg)were selected and randomly divided into six groups with 10 animals each.The groups comprised five experimental groups and 1 control group.The pre-feeding and trial periods were set as 11 and 59 days,respectively.The results revealed that:1)In terms of production performance,the average daily feed intake of the LB group was the lowest(1.30 kg),significantly lower than that of all other groups(P<0.05)including the control group;the average daily gain was the highest in the control and EE groups(290.00 and 272.88 g,respectively)and the lowest in the LB group(227.33 g),with significant differences between the groups(P<0.05).2)In terms of meat quality,the muscle cholesterol was the lowest at 0.44 mg·g^(-1) in the CK group,significantly lower than that in the control and other experimental groups(P<0.05).The muscle inosincacid(IMP)content was the highest in EE group(4.12 mg·g^(-1)),significantly higher than that in the control,CK,and GU groups(P<0.05),followed by that in the LB group(3.89 mg·g^(-1)),which was significantly higher than that in the CK group(P<0.05).3)With regard to serum biochemical indices,EF group exhibited the highest serum triglyceride levels(0.44 mmol·L^(−1)),significantly different from the GU and GV groups(P<0.05),however,not from the control group(P>0.05).In summary,different roughages have certain effects on the production performance,meat quality,and blood glucose and lipid metabolism of Tan sheep.Furthermore,although the addition of C.korshinskii,E.frumentacea,G.uralensis,L.barbarum branches,and grape vines can alleviate the problems caused by insufficient forage sources,the

关 键 词：粗饲料 饲草资源 滩羊 草畜矛盾 生产性能 肉品质 血清生化 

分 类 号：S826.5[农业科学—畜牧学]