速溶酶解发酵乳化饲料对犊牛生长性能、养分消化率及瘤胃发酵参数的影响  

Effect of enzymatic hydrolysis and fermentation of emulsified feed on calf growth performance,nutrient digestibility and rumen fermentation parameters

作　　者：汪秀娟 王德平 WANG Xiujuan;WANG Deping(Animal Health Supervision Institute of Huoqiu County,Anhui,Liu'an,Anhui Province 237400,China;Anhui Guangtong Biological Technology Co.,Ltd.,Liu'an,Anhui Province 237000,China)

机构地区：[1]安徽霍邱县动物卫生监督所,安徽六安237400 [2]安徽广通生物科技有限公司,安徽六安237000

出　　处：《中国饲料》2022年第15期31-36,共6页China Feed

摘　　要：为研究速溶酶解发酵乳化饲料对犊牛生长性能、养分消化率及瘤胃发酵参数的影响,试验选取100头中国荷斯坦犊牛,随机分成5组,每组20头牛。对照组不添加速溶酶解发酵乳化饲料,试验组添加速溶酶解发酵乳化饲料,试验期55 d。结果表明:犊牛日粮中添加速溶酶解发酵乳化饲料后,试验1、2、3、4组腹泻率较对照组显著降低71.40%、92.20%、94.26%和95.54%(P<0.05),干物质消化率较对照组显著提高3.37%、5.73%、8.57%和10.77%(P<0.05),粗蛋白质消化率较对照组显著提高4.91%、7.95%、9.59%和11.60%(P<0.05),60日龄犊牛瘤胃乙酸/丙酸含量较对照组显著降低6.54%、10.48%、15.32%和18.55%(P<0.05),60日龄犊牛瘤胃丁酸含量较对照组显著提高3.37%、7.47%、9.37%和11.86%(P<0.05),其他生长性能指标、养分消化率指标和瘤胃发酵参数指标均有不同程度的改善。结果提示,速溶酶解发酵乳化饲料可明显提高犊牛生长性能,促进瘤胃发育健全。Select 100 Chinese Holstein calves and randomly divide them into 5 groups with 20 cows in each group.The control group did not add enzymatically fermented emulsified feed,and the test group added enzymatically fermented emulsified feed to study the effect of enzymatically fermented emulsified feed on calf growth performance and rumen fermentation parameters.The results showed that after adding instant enzymatically fermented emulsified feed to calf diets,the diarrhea rates of test groups were significantly lower than the control group by 71.40%,92.20%,94.26%and 95.54%(P<0.05).Compared with the control group,the dry matter(DM)digestibility was significantly increased by 3.37%,5.73%,8.57%and 10.77%(P<0.05),and the crude protein(CP)digestibility was significantly increased by 4.91%,7.95%,9.59%and 11.60%compared with the control group(P<0.05),the content of acetic acid/propionic acid in the rumen of 60-dayold calves was significantly lower than that of the control group by 6.54%,10.48%,15.32%and 18.5%(P<0.05).The content of butyric acid in the rumen of 60-day-old calves was significantly increased by 3.37%,7.47%,9.37%and 11.86%(P<0.05),other growth performance indicators,nutrient digestibility indicators and rumen fermentation parameters have been improved to varying degrees.The results indicated that enzymatic hydrolysis fermented emulsified feed could significantly improve the growth performance of calves and promote the development of the rumen.

关 键 词：速溶酶解发酵乳化饲料 犊牛 开口料 生长性能 养分消化率 瘤胃发酵 

分 类 号：S816.6[农业科学—饲料科学]