Interaction between Clinical Mastitis, Other Diseases and Reproductive Performance in Dairy Cows

摘要

Reproductive efficiency is an important contributor to dairy farm profitability. Unfortunately, the reproductive performance of dairy cattle has declined steadily over the last few decades (Lucy, 2001). Many factors influence dairy cow fertility including climate and environment, herd characteristics and herd management, genetics and incidence of various diseases. The effect of diseases on reproduction has received more attention during the last 10 years. It has become more evident that reproductivedisorders such as dystocia, retained placenta, ovarian cysts and metritis can decrease reproductive performance of dairy cows. It may not be surprising that diseases that affect reproductive systems can directly affect reproductive performance.