论文部分内容阅读
奶牛乳房炎是由物理、化学或微生物等因素刺激奶牛乳腺所引发的一种炎症反应,其特点是乳汁发生理化性质变化以及乳腺组织发生病理学变化,该病发病率高,导致奶牛产奶量下降、发情期延长、繁殖性能降低;治疗该病会产生高额的费用,治愈率较低;此外,乳房炎导致牛奶品质下降,破坏牛奶营养成分,降低其保健作用,目前我国奶牛存栏量1440余万头,奶牛隐性乳房炎的阳性率也在
Mastitis is caused by physical, chemical or microbiological factors such as milk cow mammary gland caused by an inflammatory reaction, which is characterized by changes in the physical and chemical properties of milk and pathological changes in breast tissue, the high incidence of the disease, resulting in dairy cows Decline, prolonged estrus, reproductive performance reduction; treatment of the disease will have a high cost, the cure rate is lower; In addition, mastitis causes the decline of milk quality, damage the nutritional content of milk and reduce their health effects, the current number of cows in China 1440 More than ten million, the positive rate of dairy cow hidden mastitis is also