平菇处理水稻秸秆在乳山羊上的应用潜力  

Application of rice straw treated by ostreatus on suckling goats

作　　者：刘静霖 LIU Jinglin(LvLiang University,Lvliang,Shanxi Province 033000,China)

机构地区：[1]吕梁学院,山西吕梁033000

出　　处：《中国饲料》2021年第6期115-118,共4页China Feed

基　　金：山西省教育厅2018年度“1331工程”研究专项课题(ZX—18089)。

摘　　要：文章旨在评估用平菇和水稻秸秆混合培养的饲料原料替代常规牧草资源苜蓿草对乳山羊泌乳性能、养分消化、瘤胃发酵及乳成分的影响。试验选择产后5 d,平均体重为(24.21±0.23)kg的泌乳山羊36头,随机分为3组,每组4个重复,每个重复3头。对照组饲喂60%浓缩料+40%苜蓿草,T1和T2组用40%和80%平菇发酵水稻秸秆替代苜蓿草,试验为期4周。结果:对照组乳山羊牧草采食量较T2组显著提高了10.74%(P<0.05),T1组干物质和中性洗涤纤维表观消化率分别较对照组显著提高了7.49%和7.23%(P<0.05),而对照组有机物、粗蛋白质表观消化率分别较T2组显著提高了14.71%和13.44%(P<0.05)。对照组血清球蛋白、肌酸酐、葡萄糖和胆固醇浓度最高(P<0.05),而T1组血清白蛋白浓度最高(P<0.05)。处理组瘤胃pH较对照组显著提高了2.94%和3.10%(P<0.05)。对照组瘤胃挥发性脂肪酸、氨氮、总氮和非蛋白氮浓度均显著高于处理组(P<0.05)。T2组乳中脂肪含量较对照组显著提高了13.62%(P<0.05),对照组与T1组乳山羊的饲料效率(能量校正乳/采食量)较T2组显著提高了32.29%和36.46%(P<0.05)。结论:乳山羊日粮中用40%平菇发酵水稻秸秆可以提高干物质和中性洗涤纤维表观消化率,改善瘤胃微生物蛋蛋白的合成。The purpose of this experiment was to evaluate the effects of ostreatus and rice straw mixed culture as feed raw materials on lactation performance,nutrient digestion,rumen fermentation and milk composition of suckling goats.Thirtysix lactation goats with an average weight of(24.21±0.23)kg 5 days after delivery were selected and randomly divided into 3 groups with 4 replicates in each group and 3 in each replicate.The control group was fed with 60%concentrate+40%lucerne,and T1 and T2 groups were fed with 40%and 80%ostreatus fermented rice straw instead of lucerne for 4 weeks.Results:control group in suckling goats grazing feed intake significantly increased by 10.74%in the T2 group(P<0.05),T1 group and neutral detergent fiber apparent digestibility of dry matter,respectively,were significantly increased by 7.49%and 7.23%than the control group(P<0.05),organic matter and crude protein apparent digestibility and the control group T2 group significantly increased by 14.71%and 13.44%respectively(P<0.05).The serum globulin,creatinine,glucose and cholesterol concentrations in the control group were the highest(P<0.05),while the serum albumin concentrations in the T1 group were the highest(P<0.05).Rumen pH in the treatment group was significantly increased by 2.94%and 3.10%compared with the control group(P<0.05).The rumen concentrations of volatile fatty acids,ammonia nitrogen,total nitrogen and non-protein nitrogen in the control group were significantly higher than those in the treatment group(P<0.05).Compared with the control group,the milk fat content in T2 group was significantly increased by 13.62%(P<0.05),and the feed efficiency(energy corrected milk/feed intake)of the control group and T1 group were significantly increased by 32.29%and 36.46%compared with T2 group(P<0.05).Conclusion:40%ostreatus fermentation of rice straw in the diet of suckling goats can improve the apparent digestibility of dry matter and neutral detergent fiber and improve the synthesis of rumen microbial protein.

关 键 词：平菇 水稻秸秆 乳山羊 

分 类 号：S826[农业科学—畜牧学]