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微生态制剂对高山美利奴羊生产性能、养分表观消化率、产毛性能和血清生化指标的影响OA北大核心CSTPCD

Effects of microecological agents on production performance,nutrients apparent digestibility,wool production performance,and serum biochemical indexes of Alpine Merino sheep

中文摘要英文摘要

试验旨在探究微生态制剂对高山美利奴羊生产性能、养分表观消化率、产毛性能和血清生化指标的影响.选择2~3岁、体重相近的高山美利奴母羊90只,随机分为3组,每组3个重复,每个重复10只母羊.对照组、试验Ⅰ组和试验Ⅱ组分别在饲粮中添加0、1%和2%的微生态制剂.预试期10 d,正式试验期120 d.结果显示,与对照组相比,试验Ⅰ组、Ⅱ组的羔羊初生重显著提高(P<0.05),母羊产毛量和毛长度显著增加(P<0.05).试验组母羊的干物质、粗蛋白、粗脂肪、中性洗涤纤维表观消化率显著高于对照组(P<0.05).各试验组血清中总蛋白、球蛋白和葡萄糖含量显著高于对照组(P<0.05),尿素氮、胆固醇、甘油三酯含量显著低于对照组(P<0.05).试验组母羊的瘤胃pH值、氨态氮、丁酸浓度显著下降(P<0.05),乙酸水平显著升高(P<0.05).研究表明,在高山美利奴羊饲粮中添加微生态制剂可有效提高羔羊的初生重和母羊产毛量、毛长度,改善母羊的血清生化指标及瘤胃发酵功能,添加量以1%为宜.

The purpose of this experiment was to investigate the effects of microecological agents on the production performance,nutrients apparent digestibility,wool production performance,and serum biochemical indexes of Alpine Merino sheep.Ninety Alpine Merino ewes aged 2~3 years and of similar weight were randomly divided into three groups with three replicates in each group and ten ewes in each replicate.The control group,the test group Ⅰ and the test group Ⅱwere added with 0,1%,and 2%microecological agents in the feed,respectively.The pre-test period was ten days,and the formal test period was 120 days.The results showed that compared with the control group,the newborn weight of lambs in the test group Ⅰ and the test group Ⅱ was significantly increased(P<0.05),and the wool yield and wool length of ewes were significantly increased(P<0.05).The apparent digestibility of dry matter,crude protein,crude fat,and neutral detergent fiber in the test group were significantly higher than that in the control group(P<0.05).The contentrations of serum total protein,globulin,and glucose in the test groups were significantly higher than those in the control group(P<0.05),while the contentrations of urea nitrogen,cholesterol,and triglyceride were significantly lower than those in the control group(P<0.05).The rumen pH value,ammonia nitrogen,and butyric acid concentration of ewes in the test group decreased significantly(P<0.05),while the proportion of acetic acid increased significantly(P<0.05).The study indicates that adding microecological agents to the supplemental diet of Alpine Merino sheep can effectively increase the birth weight of lambs,wool yield and wool length of ewes,and improve serum biochemical indexes and rumen fermentation function of ewes.The appropriate amount of microecological agents is 1%.

文亚洲;王天翔;李岩

甘肃省绵羊繁育技术推广站,甘肃张掖 734031甘肃省畜牧技术推广总站,甘肃兰州 730050

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高山美利奴羊微生态制剂生产性能养分表观消化率产毛性能血清生化指标

Alpine Merino sheepmicroecological preparationproduction performancenutrients apparent digestibilitywool production performanceserum biochemical indexes

《饲料研究》 2024 (010)

17-21 / 5

国家绒毛用羊产业技术体系建设专项资金(项目编号:CARS-39-34);甘肃农业科技项目(项目编号:GNKJ-2018-03、GNKJ-2022-37)

10.13557/j.cnki.issn1002-2813.2024.10.004

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