Nghiên cứu bệnh lý học lâm sàng trên gia sức mắc tự nhiên bệnh viêm da nổi cục=Clinicopathological on cattle naturally infected with lumpy skin diseases

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Tác giả: Thị Thu Thủy Chu, Văn Chung Đỗ, Thị Ngọc Diệp Hoàng, Ngọc Diệp Huỳnh, Đắc Vinh Lê, Thị Mai Khanh Lê, Xuân Lý Mai, Nam Hùng Nguyễn, Thị Hồng Loan Nguyễn, Văn Thuận Nguyễn, Anh Hùng Phạm, Minh Hằng Phạm, Thành Nhương Phạm, Công Tám Trần, Hùng Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2024

Mô tả vật lý: tr.27

Bộ sưu tập: Metadata

ID: 486384

Thêm vào giỏ

Bệnh viêm da nổi cục (VDNC) là một trong những bệnh do virus, gây thiệt hại lớn về kinh tế cho chăn nuôi trâu, bò ở Việt Nam. Nghiên cứu này được thiết kế để thống kê các dấu hiệu lâm sàng và tổn thương đại thể ở gia súc bị mắc bệnh. Hộ chăn nuôi trâu, bò của 12 tỉnh thuộc 7 vùng sinh thái nông nghiệp đã được chọn trong nghiên cứu này. Các dấu hiệu lâm sàng, tỷ lệ mắc bệnh và tỷ lệ tử vong đã được tính toán. Những thay đổi bệnh lý ở những tổn thương sau khi chết đã được quan sát. Các dấu hiệu lâm sàng chính của gia súc bị nhiễm virus VDNC là sốt cao, chán ăn, chảy nước mũi, chảy nước mắt và tiết nước bọt ở giai đoạn xâm nhiễm. Ở giai đoạn phát ban
có 76,2% số hộ chăn nuôi có gia súc xuất hiện các nốt sần cứng, tròn, không đau, đường kính 0,5 - 5 cm với số lượng thay đổi. Các dấu hiệu lâm sàng khác bao gồm đau đớn và thở mạnh (41,1%), nốt sần hoại tử hình thành mô sẹo (54,3%), và sụt cân (45,8%). Tỷ lệ hộ chăn nuôi có bò mắc bệnh ở mức độ nhẹ hoặc không có triệu chứng lâm sàng là 21,6%. Tỷ lệ mắc bệnh trung bình là 39,5%. Tỷ lệ trang trại có trâu bò phục hồi từ 10 đến 19 ngày là 29,2%. Chín tỉnh có tỷ lệ gia súc chết dưới 10% và ba tỉnh có tỷ lệ gia súc chết trên 20%. Sẹo trên da là biểu hiện di chứng phổ biến nhất
chiếm 66,2% số hộ có gia súc mắc bệnh. Kết quả nghiên cứu đã tập hợp được số liệu về triệu chứng lâm sàng và bệnh tích đại thể của gia súc mắc bệnh VDNC tự nhiên ở Việt Nam. Đây là cơ sở khoa học hỗ trợ cho việc phát triển phương pháp sàng lọc chẩn đoán bênh sớm và đồng thời đóng góp thêm cho kiến thức về bệnh lý VDNC trên toàn cầu.Lumpy skin disease (LSD) is one of the major viral diseases causing great economic loss for the cattle herds raising in Viet Nam. This study was designed to quantify clinical signs and gross lesions among LSD-infected cattle. Cattle households from twelve provinces belonging to seven agricultural ecology zones were selected for this study. The clinical signs, morbidity, and mortality rates were calculated. Pathological changes of postmortem lesions were observed. The main clinical signs of cattle infected with LSDV revealed high fever, anorexia, nasal discharge, lacrimation, and salivation in the invasion phase. In the rash phase, 76.2% of cattle households had cattle appearing hard, rounded, painless nodules from 0.5 to 5cm in diameter with variable number. Other clinical signs included painful and hard breathing (41.1%), the necrotic nodule lesion formed scar tissues (54.3%), and weight loss (45.8%). Mild or absent clinical signs were 21.6% among cattle infected households. The average morbidity percentage was 39.5%. The percentage of farms that had the recover cattle from 10 to 19 days was 29.2%. Nine provinces had an average mortality percentage of cattle under 10%, and three provinces had an average mortality percentage of cattle above 20%. Scars on the skin were the most common manifestation of sequelae, accounting for 66.2% of cattle infected households. These results accumulated data on the clinical symptoms and the gross lesions of cattle naturally infected with lumpy skin diseases in Viet Nam. These data are the scientific basis to support the development of screening methods for early diagnosis and contribute to the global knowledge of lumpy skin disease.

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