摘要
Abstract
This study was based on field survey data from 17 large-scale dairy farms in the Yantai region in September 2024,systematically analyzing the short-term effects and recovery patterns of mandatory foot-and-mouth disease(type OA)vaccination on the reproductive performance of dairy cows.The results showed that within one week after vaccination,the estrus rate,breeding rate,and conception rate of dairy cows decreased by 14.3%,9.8%,and 8.5%,respectively,while the abortion rate slightly increased.One month after vaccination,all reproductive indicators essentially returned to pre-vaccination levels.Vaccination stress,operational standardization,and vaccine adjuvants were identified as the main factors affecting reproductive performance.The study further found a positive correlation between the frequency of sanitary disinfection and the recovery speed of reproductive indicators post-vaccination.Based on these findings,optimization recommendations such as"group-based vaccination and staggered breeding""enhanced nutrition and estrus monitoring",and"establishing a comprehensive disinfection system"are proposed to mitigate the negative impact of vaccination on reproductive performance and improve the effectiveness of autumn foot-and-mouth disease prevention and dairy cow reproductive efficiency.关键词
口蹄疫免疫/奶牛/繁殖性能/免疫应激/饲养管理/卫生消毒/烟台地区Key words
Foot-and-Mouth disease vaccination/dairy cow/reproductive performance/vaccination stress/herd management/sanitation and disinfection/Yantai region
