EM发酵玉米秸秆饲喂陕北白绒山羊效果研究

为研究EM发酵玉米秸秆饲喂陕北白绒山羊效果,试验选择16只健康状况良好的1周岁空怀期陕北白绒山羊,将其随机分成A、B两组,每组8个重复,每个重复1只。试验基础日粮为苜蓿干草200g＋精料补充料200g。A组饲喂基础日粮＋常规玉米秸秆;B组饲喂基础日粮＋EM发酵玉米秸秆,试验中A、B两组自由采食秸秆。试验共40d,其中预饲期18d10结果显示：（1）B组平均干物质采食量显著高于A组（P〈0.05）,其中玉米秸秆采食量较A组高22.53%（P〈0.05）;（2）B组DMD、GED和CPD分别较A组高3.65%（P〈0.05）、4.18%（P〈0.05）和8.02%（P〈0.01）;（3）B组平均日增重和饲料转化效率分别为45.45g和74.19g/kg,极显著高于A组的22.27g和39.32g/kg（P〈0.01）。综上所述,EM发酵的玉米秸秆可以达到开发秸秆粗饲料、减少资源浪费、减少公害、降低生产成本的目的。

Research on Effect of EM-fermented Corn Straw on Shaanbei White Goats

To estimate the application value of EM-fermented corn straw for Shaanbei White Cashmere goats,a total of 16one-year-old healthy ewes were divied into 2group：group A and B,with 8replicates per group.The basal diet contained 200 g alfalfa hay and 200 g concentrate supplement.The goats were fed on basal diet＋ corn straw in group A and basal diet＋ EM-fermented corn straw in group B,respectively,and ewes in both group were accessible to take corn straw.The experiment lasted 40-d including 18-d adjustment.The results showed：（1）the average DMI of group B was significantly higher than that of group A（P〈0.05）,and the corn straw intake was 22.53% higher than that in group A（P〈0.05）;（2）the DMD,GED and CPD of group B was 3.65%（P〈0.05）,4.18%（P〈0.05）and 8.02%（P〈0.01）higher than that of group A,respectively.（3）The ADG（45.75g）and FCR（74.19g/Kg）of group B were（P〈0.01）22.27 g and 39.32g/Kg higher than that in group A,respectively.In conclusion,EM-fermented technique could improve the application value of corn straw for Shaanbei white cashmere goat.