Virus dịch tả heo Châu Phi (African Swine fever virus - ASFV) yếu tối nguy cơ đối với bệnh viêm khớp ở heo choai

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Tác giả: Thị Thu Hà Lê, Ngọc Hải Nguyễn, Thị Phương Bình Nguyễn, Trung Quân Nguyễn, Hoàng Anh Thư Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2023

Mô tả vật lý: tr.5

Bộ sưu tập: Metadata

ID: 340958

Thêm vào giỏ Liên kết toàn văn

Heo choai của một trại sản xuất heo thịt có lịch sử bị bệnh ASF vào năm 2019 đã bị bệnh viêm khớp, chủ yếu xảy ra ở heo 6 – 8 tuần tuổi, nhất là heo 8 tuần tuổi, với tỷ lệ loại thải lên đến 30%. Điều trị bằng kháng sinh cho heo bệnh đã không có hiệu quả, dẫn đến tình trạng heo bị viêm khớpvà bị loại thải không được cải thiện. Trong khi đó, heo nái, heo con theo mẹ không có những biểu hiện lâm sàng bất thường liên quan đến bệnh truyền nhiễm. Heo bị bệnh viêm khớp đã được mổ khám và ghi nhận bệnh tích đặc trưng của ASF ở thể dưới cấp và thể mạn tính, với kết quả xét nghiệm PRRSV và ASFV dương tính ở cả 2 nhóm heo 6 tuần và 8 tuần tuổi. Dựa theo đặc điểm lâm sàng, bệnh tích, xét nghiệm và thực tế dịch tễ của bệnh ASF ở Việt Nam và trên thế giới, đãcó cơ sở khoa học để nghi ngờ ASFV có liên quan đến tình trạng bệnh lý viêm khớp gia tăng ở heo choai hiện nay tại Việt Nam.The growing pigs in a pig farm having history of ASF since 2019 were suffered with arthritis occurring mainly in the pigs at 6 - 8 weeks old, especially in the pigs at 8 weeks old, with a culling rate was up to 30%. Using antibiotics to treat the disease pigs was not effective, the arthritis and culling rates were not improved. Meanwhile, the sows, and suckling piglets did not have the clinical manifestations related to the infectious diseases. The autopsy result showed that the infection pigs with arthritis carried the typical lesions of the ASF sub-acute and chronic forms and the samples were positive for PRRSV and ASFV tests in both pig groups at 6 and 8 weeks old. Based on the clinical characteristics, laboratory tests and epidemiological facts of ASF in Viet Nam and in the world, we can suspect that ASF virus is related to the arthritis in the growing pigs currently in Viet Nam.

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