Thực trạng bệnh ở buồng trứng trên đàn bò sữa tại công ty cổ phần giống bò sữa Mộc Châu - Sơn la=Situation of ovarian diseases in dairy cow at Moc Chau dairy breed jointstock company

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Tác giả: Duy Quang Bùi, Thanh Long Sử

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2017

Mô tả vật lý:

Bộ sưu tập: Báo, Tạp chí

ID: 71752

Thêm vào giỏ

Moc Chau is a locality having about 60 years of dairy cattle farming experience in Viet Nam. However, up to date, ovarian diseases in the dairy cows, such as late estrus or artificial insemination for several times but the cows are not pregnant, which are still problematic. In this study, exam, surveillance and sorting of the ovarian diseases of cow during the period from parturition to 90 days afterward in Moc Chau were carried out. The studied result showed that after parturition the cows suffering with ovarian disease accounted for 55.56% which consisted of corpus luteum disease (16.42%), ovarian cyst (22.39%) and inactive ovary (56.72%). The incidence of these disorders was varied by seasons. In spring and summer, the cows carrying ovarian cyst shared about 40% and 20%, respectively. In autumn, the cows suffering from inactive ovary disease accounted for 23.68%. In winter, 54.54% of cow number were suffered with corpus luteum disease. In the second litter, the cows were more susceptible with ovarian cyst and inactive ovary. Meanwhile in the third litter, the cows were vulnerable to prolonged luteal phase. In other hands, the cows with BCS 4 were often suffered with ovarian cyst. The inactive ovary and prolonged luteal phase were often identified in the cows with 2.5Mộc Châu là địa phương có gần 60 năm kinh nghiệm nuôi bò sữa, nhưng cho đến nay, bò sữa nuôi ở ở Mộc Châu vẫn mắc phải một số bệnh như chậm động dục hay thụ tinh nhiều lần khi bò động dục mà không có chửa. Khám, theo dõi và phân loại bệnh buồng trứng của bò sữa ở ở Môc Châu từ khi đẻ cho đến 90 ngày sau đẻ đã được thực hiện trong nghiên cứu này. Kết quả nghiên cứu cho thấy tỷ lệ bò bị mắc bệnh buồng trứng sau khi đẻ là 55,56%. Bệnh chủ yếu do thể vàng tồn lưu chiếm 16,42%, do u nang buồng trứng chiếm 22,39% và buồng trứng không hoạt động chiếm 56,72%. Ở Ở các mùa vụ khác nhau thì bò bị mắc các bệnh buồng trứng cũng khác nhau. Ở mùa xuân và mùa hạ, bò bị mắc bệnh u nang buồng trứng chiếm tỷ lệ là 40,0% và 20,0%. Ở mùa thu, bệnh buồng trứng không hoạt động chiếm tỷ lệ là 23,68% và mùa đông thì ì bệnh thể vàng buồng trứng chiếm tỷ lệ là 54,54%. Bò đẻ lứa thứ hai thường hay mắc bệnh u nang buồng trứng và buồng trứng không hoạt động, trong đó bệnh thể vàng tồn lưu lại chiếm tỷ lệ cao ở ở lứa đẻ thứ ba. Bò có thể trạng gầy thường hay mắc bệnh buồng trứng không hoạt động, còn bò có thể trạng béo thì thường bị mắc bệnh u nang buồng trứng. Trong khi đó, bò có thể trạng bình thường thì lại hay mắc bệnh buồng trứng không hoạt động và thể vàng tồn lưu.

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