Bệnh chân móng trên bò sữa ở huyện Đức Trọng, tỉnh Lâm Đồng

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Tác giả: Thanh Hải Dương, Đức Danh Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 636 Animal husbandry

Thông tin xuất bản: Khoa học kỹ thuật chăn nuôi 2021

Mô tả vật lý: 80 - 85

Bộ sưu tập: Metadata

ID: 401387

Thêm vào giỏ Liên kết toàn văn

Bệnh chân móng là bệnh gây thiệt hại thứ 3 trên bò sữa - sau bệnh viêm vú và bệnh sinh sản. Bò mắc bệnh chân móng thường giảm sức sản xuất và khả năng sinh sản, tốn kém trong quá trìnhđiều trị và tăng tỷ lệ loại thải. Nghiên cứu được thực hiện trên 1946 bò sữa của 91 hộ chăn nuôi tại huyện Đức Trọng, tỉnh Lâm Đồng nhằm đánh giá hiện trạng về bệnh chân móng ở đàn bò sữa nuôi trong nông hộ. Bệnh chân móng được đánh giá thông qua điểm di chuyển bằng cách quan sát dáng đi và sống lưng của bò khi di chuyển. Điểm này được đánh giá từ cấp độ 1 (chân móng bình thường) đến 5 (bò có 3 chân trở lên bị đau). Điểm cấp độ 2-3 bò bị đau chân tiềm ẩn và điểm 4-5 là bò đau châm móng lâm sàng. Những bò có điểm di chuyển từ 2 trở lên sẽ được gọt móng để đánh giá bệnh tích. Kết quả nghiên cứu cho thấy bệnh chân móng xảy ra ở tất cả các hộ chăn nuôi với tỷ lệ 14,8% tổng đàn. Bò đau chân móng lâm sàng (điểm di chuyển mức độ 4) chiếm tỷ lệ cao nhất (39,58%). Bệnh chân móng xảy ra ở cả 4 chân nhưng tỷ lệ bị ở chân sau cao hơn chân trước (Pp<
0,05). Loét đáy móng và tổn thương đường trắng là 2 bệnh tích thường gặp ở đàn bò sữa nuôi trong nông hộ của huyện Đức Trọng, tỉnh Lâm Đồng., Tóm tắt tiếng anh, Lameness is the third most expensive health problem of dairy animals after mastitis and infertility. Affected animals show poor production and reproduction performance, added costs of treatment, culling and replacement result in losses to farmers. The study was conducted on 1946 dairy cows raising in 91 households in Duc Trong district, Lam Dong province to evaluate the current status of lameness in dairy cows. Locomotion score (LS) have been used to identify and classify of severity of lameness based on observation of cows standing and walking (gait), with special emphasis on their back posture. Visually scored on a scale of 1 to 5, where a score of 1 reflects a cow that walks normally and a score of 5 reflects a cow that is three-legged lame. Generally, LS of 2 and 3 are considered to represent sub-clinically lame cows
whereas LS of 4 and 5 represent those cows that are clinically lame. Cows scoring 2 or higher have been exanimated and trimmed to evaluate lesion. The result showed that lemeness occurs in all household with the rate of 14.8% of the herd. The clinical lame (LS 4) is highest, accounted for 39.58%. Lameness appeared to all the 4 limbs, however the incidence is higher in the hind limbs than the front limbs. Sole ulcers and white line lesion are 2 of the most common lesions in dairy cows raising in households in Duc Trong district, Lam Dong province.

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