【摘要】 为调查分析规模化奶牛场卵巢囊肿发生的原因,采用现场调查、收集产犊记录、发情配种记录、受胎记录、产奶记录、疾病诊疗记录等,结合临床症状,辅助超声检查的方法共收集394头患卵巢囊肿病例,对227头进行了鉴别诊断,其中190头患卵泡囊肿,包括3头过渡态,37头患黄体囊肿,未区分鉴别患卵泡囊肿和黄体囊肿的有167头。对卵巢囊肿奶牛囊肿位置、直径、体况、胎次、空怀天数、日产奶量进行了分析。奶牛卵泡囊肿与黄体囊肿发病率比较,卵泡囊肿的发病率高(P<0.01)。患卵泡囊肿疾病的奶牛囊肿直径2.5～3.0 cm组比<2.5 cm组的发病率高(P<0.01),囊肿直径>3.0 cm组比<2.5 cm组的发病率高(P<0.01)。卵泡囊肿奶牛体况评分(BCS)≥3组比BCS<3组的发病率高(P<0.01),卵泡囊肿奶牛经产牛比头胎牛的发病率高(P<0.01)。卵泡囊肿奶牛产后天数<120 d组比120 d-180 d的发病率高(P<0.01)。黄体囊肿奶牛BCS≥3比BCS<3的发病率高(P<0.05),产后天数>180 d比120-180 d的发病率高(P<0.05)。卵泡囊肿奶牛不同产奶量组发病率差异不显著(P>0.05)。本试验将为奶牛临床卵巢囊肿的防治提供数据支撑。更多还原

【Abstract】 The purpose of this study was to analyze the cause of bovine ovarian cysts in large-scale dairy farms. A total of 394 dairy cows were diagnosed as ovarian cysts according to field investigation, records of calving, estrus, pregnancy, milk production, diagnosis and treatment of disease, and by combining with clinical symptoms and ultrasound examination. The results showed that 227 dairy cows were diagnosed as different types of ovarian cysts, of which 190 were follicular cyst, including 3 with transitional state and 37 with luteal cysts. But other 167 dairy cows were not clinically confirmed as either follicle cysts or luteal cysts. After analyzing the location and diameter of cysts, body condition, parity, empty days and daily milk production, it was found the incidence of luteal cysts was significantly higher than that in follicular cysts(P<0.01). And others comparison groups, such as diameter of cysts(2.5-3.0 cm) vs. diameter of cysts(<2.5 cm), diameter of cysts(>3.0 cm) vs. diameter of cysts(<2.5 cm), follicle cysts with body condition score(BCS)≥3 vs. that with BCS<3, multipara cows vs. first fetal cows, postpartum less than 120 days vs. those of 120-180 days,also showed that the former ones were statistically higher than the latter ones(P<0.01). The similar results were also found in groups of follicle cysts with corpus luteum cyst BCS≥3 vs. those of BCS<3, and postpartum more than 120 days vs. those of 120-180 days(P<0.05), but no significant difference in groups of different milk production(P>0.05). The study will provide technical support for control of ovarian cysts in dairy cows.更多还原