产犊月份与奶牛隐型乳房炎的发病及产奶量的关系研究  

Relationship of Calving Month with Incidence of Subclinical Mastitis and Milk Production

作　　者：甘宗辉[1] 张亚琴[1] 冀德君[1] 刘珊[1] 杨章平[1] 毛永江[1] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《中国牛业科学》2013年第1期25-29,共5页China Cattle Science

基　　金：国家自然科学基金3127407;国家863项目2008AA10Z144;江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：[目的]为了探索产犊月份与奶牛隐型乳房炎的发病情况和产奶量之间的关系。[方法]采集江苏盐城某集约化奶牛场2 564头泌乳牛的DHI记录,利用隐型乳房炎测试液检测隐型乳房炎发病情况,并利用Spss软件进行统计分析。[结果]显示:产犊月份在6月份时,305d产奶量最低;在8月份时,则最高。几乎每个产犊月份与其余月份之间的305d产奶量均呈现显著性差异(P<0.05)。产犊月份在6、7月时,隐型乳房炎的发病率最高,产犊月份在4、5月时,隐型乳房炎的发病率最低。产犊月份与隐型乳房炎的发病程度和305d产奶量均为显著性相关。[结论]最优产犊月份在9、10月份,这期间产犊容易取得较高的产奶量、较低的隐型乳房炎发病率和较轻的发病程度。[Objective]This study was to explore the relationship of calving months with incidence of subclinical mastitis and milk production. [Method]DHI records from 2,564 first lactation cows were col lected in an intensive dairy farms in Yancheng,Jiangsu,and the incidence of subclinical mastitis of these dairy cows were detected using mastitis testing kit. The data were statistically processed using SPSS soft ware. [Result]The results showed that：Calving month in June related with the lowest 305-day milk yield, while August related with the highest milk yield. For other calving months, there existed significant differ ence almost between each month and the other month. When the Calving month was in June and July,the highest incidence of latent mastitis was observed and the lowest incidence was observed in April and May Calving month was also significantly correlated with subclinical mastitis degree, and subclinical mastitis de gree was significantly correlated with 305-day milk yield. [Conclusion]These results recommended that a better calving month would be in September or October,and thus a higher milk yield,tower subclinical inci dence and lesser degree would be expected.

关 键 词：产犊月份 隐型乳房炎 产奶量 

分 类 号：S858.23[农业科学—临床兽医学]