《中国畜牧兽医》 ›› 2018, Vol. 45 ›› Issue (5): 1266-1273.doi: 10.16431/j.cnki.1671-7236.2018.05.018

• 动物营养与饲料科学 • 上一篇    下一篇

新型预混料对奶牛酒精阳性乳防治作用的研究

田帅1, 叶耿坪1, 唐新仁1,2   

  1. 1. 上海光明荷斯坦牧业有限公司, 上海 200436;
    2. 光明乳业股份有限公司, 上海 201103
  • 收稿日期:2017-07-21 出版日期:2018-05-20 发布日期:2018-05-19
  • 通讯作者: 唐新仁 E-mail:tangxinren2016@163.com
  • 作者简介:田帅(1989-),男,河南周口人,硕士,畜牧师,研究方向:预混料和奶牛健康,E-mail:tianshuai@brightdairy.com
  • 基金资助:

    长三角乳及乳制品协同监管服务平台开发及应用示范项目(16395810103)

Effect of the New Premix on Prevention and Treatment of Alcohol Positive Milk in Dairy Cow

TIAN Shuai1, YE Gengping1, TANG Xinren1,2   

  1. 1. Shanghai Bright Holstan Co. Ltd., Shanghai 200436, China;
    2. Bright Dairy and Food Co.. Ltd., Shanghai 201103, China
  • Received:2017-07-21 Online:2018-05-20 Published:2018-05-19

摘要:

为了验证针对酒精阳性乳(alcohol positive milk,AMP)发病机理制作的新型预混料对奶牛酒精阳性乳的防治效果,本研究设计了试验1和试验2:在试验1中,根据泌乳天数、酒精阳性乳程度,采用完全随机区组方法将100头荷斯坦泌乳后期牛分为对照组、低剂量(LDG)、中剂量(MDG)和高剂量组(HDG),每组5个重复,每个重复5头牛,各组在日粮中依次添加0、50、100和150 g/(头·d)新型预混料,试验期26 d,3 d为1个采样周期;在试验2中,按照试验1的分组方法,将370头荷斯坦泌乳后期奶牛分为对照组和试验组,每组185头,在日粮中依次添加0和100 g/(头·d)新型预混料,试验期35 d,每5 d为1个采样周期。将奶样与等量的75%中性酒精混合,通过观察奶样状态判断酒精阳性乳发生程度。试验1结果表明,与对照组相比,在日粮中添加50 g/(头·d)新型预混料对酒精阳性乳的发生率有一定的影响(P>0.05);日粮中添加100和150 g/(头·d)新型预混料能显著降低酒精阳性乳发生率(P<0.05),尤其对降低强阳性酒精阳性乳发生率效果极显著(P<0.01),但两组之间差异不显著(P>0.05)。试验2结果表明,到试验结束时,日粮中添加100 g/(头·d)新型预混料可使酒精阳性乳总发生率降低75.73%,强阳性酒精阳性乳发生率降低90.82%。以上结果表明,新型预混料能有效防治奶牛酒精阳性乳的发生,且日粮中新型预混料的最佳添加量是100 g/(头·d)。

关键词: 酒精阳性乳; 新型预混料; 防治; 添加量

Abstract:

Two experiments were designed to verify the effect of new premix on prevention and treatment of alcohol positive milk (APM) in dairy cow.In the experiment 1,according to lactation days and the occurrence degree of APM,100 late lactation Holstein cows were divided into four groups in the completely randomized block method.Treatments were:Control group,low dose group (LDG),medium dose group (MDG),and high dose group (HDG) with 0,50,100 and 150 g new premix per cow per day,respectively.Each group included 5 replicates with 5 cows in every replicate.The test period was 26 days and 3 days was one sampling period.In the experiment 2,according to the grouping method of experiment 1,370 late lactation Holstein cows were divided into control group (n=185) and the test group (n=185) with 0 and 100 g new premix per cow per day,respectively.The test period was 35 days and 5 days was one sampling period.Milk samples were mixed with an equal amount of 75% neutral alcohol to detect agglutination reactions.The results of experiment 1 showed that cows fed 50 g new premix had a few effect to decrease the incidence of APM (P>0.05) compared with control group.However,cows fed 100 and 150 g new premix could significantly decrease the incidence of APM (P<0.05),especially the incidence of strong APM (P<0.01).There was no significant difference for incidence of APM between the cows fed 100 and 150 g new premix (P>0.05).The results of experiment 2 showed that the rate of the total APM and strong APM were decreased by 75.73% and 90.82% in cows fed 100 g new premix by the end of the experiment,respectively.In conclusion,the new premix could prevent and treat the APM effectively,and the effective addition of the new premix in the diet should be 100 g per cow per day.

Key words: alcohol-positive milk (APM); new premix; prevent and treat; addition amount

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