摘要
本研究采用配对试验设计,选择年龄、胎次、产奶量、泌乳天数相近的荷斯坦牛30头,随机分成两组,每组15头,对照组饲喂基础饲粮,试验组在基础饲粮基础上饲喂复合霉菌毒素吸附剂20g/(头·d),其他饲养管理方式不变。预饲期7d,正试期63d,分别测定产奶量、乳成分、血液生化指标、抗氧化能力及免疫调节功能指标。结果表明,饲粮中添加复合霉菌毒素吸附剂对奶牛产奶量及乳成分无显著影响(P>0.05),试验组较对照组乳中黄曲霉毒素、玉米赤霉烯酮和伏马毒素分别降低了13.36%(P<0.05)、8.64%(P<0.05)、3.75%(P>0.05),血清中黄曲霉毒素、玉米赤霉烯酮和伏马毒素分别降低20%(P<0.05)、14.62%(P<0.05)、13.88%(P<0.05)。两组血液生化指标及抗氧化指标差异不显著(P>0.05),试验组的IL-1、IL-6水平低于对照组,但差异不显著(P>0.05),TNF-α含量显著低于对照组(P<0.05)。以上结果提示在不影响泌乳牛正常生产性能情况下,使用复合霉菌毒素吸附剂可以降低奶牛体内及乳中霉菌毒素的残留。
Thirty Holstein dairy cows with similar age, parity, milk yield and lactation days were randomly divided into two groups, 15 cows in each group. The control group was fed with basic diet. The experimental group was fed with compound mycotoxin adsorbent 20 g/(d·head) in the basic diet. The trial lasted 70 days, including adaptation period of 7 days and experimental period of 63 days. The results showed that, there was no significant effect on the performance and milk composition of dairy cows by adding compound mycotoxin adsorbent in diet(P>0.05).Compared with the control group, aflatoxin, zearalenone and fumonisin in the milk of the experimental group decreased by 13.36%(P<0.05), 8.64%(P<0.05), 3.75%(P>0.05), respectively. And aflatoxin, zearalenone and fumonisin in the serum decreased by 20%(P<0.05), 14.62%(P<0.05), 13.88%(P<0.05), respectively. There was no significant difference in blood biochemical and antioxidant indexes between the experimental group and the control group(P>0.05). IL-1 and IL-6 in the experimental group were lower than those in the control group, but the difference is not significant(P >0.05), while TNF-α in the experimental group was significantly lower than that in the control group(P<0.05).
作者
白阳
王泽栋
李莲
韩兆玉
王根林
BAI Yang;WANG Ze-dong;LI Lian;HAN Zhao-yu;WANG Gen-lin(College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095)
出处
《中国奶牛》
2019年第6期12-17,共6页
China Dairy Cattle
基金
江苏省农业科技自主创新资金项目(CX(17)1005-01)
江苏现代农业(奶牛)产业技术体系(JATS[2018]291)
关键词
泌乳荷斯坦牛
霉菌毒素
产奶性能
血液生化指标
Lactating Holstein cows
Mycotoxin
Milk performance
Blood biochemical parameters
