奶牛腹泻非感染性因素的调查分析  

Investigation and analysis of non-infectious factors causing diarrhea in dairy cow

作　　者：蒋传珠 JIANG Chuanzhu(Yunnan Vocational and Technical College of Agriculture,Kunming 650212,China)

机构地区：[1]云南农业职业技术学院,昆明650031

出　　处：《养殖与饲料》2023年第9期15-17,共3页Animals Breeding and Feed

摘　　要：[目的]探索引起奶牛腹泻的非感染性因素,了解其发病规律,为奶牛的饲养管理提供参考。[方法]对468头奶牛进行为期365 d的跟踪调查分析。[结果]奶牛腹泻发病率为45.5%,死亡率为0.9%;奶牛饲喂青绿饲料越多,其发病率越高,差异显著;夏季奶牛腹泻发病率分别比春、秋、冬季高20.4个百分点、18.8个百分点和12.2个百分点,且差异显著;随着奶牛生产胎次和产奶量的增加,发病率显著升高;第2个泌乳月的奶牛腹泻发病率分别比第1、3、4、5个以上泌乳月的高31.2个百分点、14.4个百分点、44.2个百分点和43.1个百分点,且差异显著。[结论]奶牛腹泻与饲料、季节、生产胎次、产奶量及泌乳月有关。[Objectives]To explore the non-infectious factors causing diarrhea in dairy cow and to understand their incidence patterns.It will provide reference for the feeding and management of dairy cows.[Methods]A 365-day follow-up investigation and analysis was conducted on 468 dairy cows.[Results]The incidence and the mortality of diarrhea in dairy cows was 45.5%and 0.9%,respectively.The more green feed cows were fed,the higher their incidence,with a significant difference.The inci-dence of dairy cow diarrhea in summer was 20.4 percentage point,18.8 percentage point and 12.2 per-centage point higher than that in spring,autumn and winter,respectively,and the difference was signifi-cant.With the increase of parities and milk yield of dairy cows,the incidence increased significantly.The incidence of diarrhea in dairy cows in the second lactation month was 31.2 percentage point,14.4 percentage point,44.2 percentage point and 43.1 percentage point higher than that in the first,third,fourth and fifth lactation months respectively,and the difference was significant.[Conclusions]Diarrhea in dairy cows is related to feed,season,parity,milk yield,and lactation month.

关 键 词：奶牛 腹泻 非感染性因素 调查分析 泌乳月 发病规律 

分 类 号：S858.23[农业科学—临床兽医学]