Bệnh viêm da nổi cục trên bò tại Tỉnh Trà Vinh và Đồng Tháp

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Tác giả: Thị Liên Khai Lý, Quốc Cường Nguyễn, Ngọc Tiên Tiền

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.25

Bộ sưu tập: Metadata

ID: 346685

Thêm vào giỏ Liên kết toàn văn

Nghiên cứu được thực hiện nhằmxác định tỷ lệ nhiễmbệnh, các yếu tố nguy cơ và đặc điểmgen P32 của virus gây bệnh viêm da nổi cục (VDNC) trên bò tại tỉnh Trà Vinh và tỉnh Đồng Tháp từ tháng 10 năm 2021 đến tháng6 năm 2022. Kết quả nghiên cứu cho thấy có 187 hộ xảy ra dịch bệnh VDNC từ 1.459 hộ chăn nuôi bò
chiếm tỷ lệ 12,82% và chiếm 91,67% so vớisố hộ kiểm tra (187/204).Từ 187 ổ dịch tại hai tỉnhTrà Vinh và ĐồngTháp đãxác định được 516 con bò bị bệnh VDNC trên 1.285 con khảo sát
chiếm tỷ lệ 40,16%. Tỷ lệ bò bị bệnh VDNC ở tỉnh Trà Vinh là 41,46% và ở tỉnh Đồng Tháp là 38,46% (tương đương nhau với P=0,477). Bò mắc bệnh VDNCphụ thuộc vào độ tuổi, phương thức chăn nuôi, giới tính. Tỷ lệ bò bệnh chết là 9,11%. Các triệu chứng phổ biến ở bò mắc bệnh VDNC là sốt, nổi nốt sần, mệt mỏi, hoại tử hình nón ngược, phù nề mặt, ức, chân. Các yếu tố nguycơ ảnh hưởng đến bệnh VDNC bao gồm: các hộ chăn nuôi bò ở gần nhau (<
100m), gần chợ (<
150m), không có mùng che côn trùng, không sát trùng định kỳ, do con người, côn trùng chân đốt như ruồi, muỗi làm lây lan bệnh.Đặc điểm di truyền của virus gây bệnh VDNC đang lưu hành tại tỉnh Trà Vinh và Đồng Tháp có sự tương đồng 100% với các chủng phát hiện trước đó tại Việt Nam và ở Tân Cương (Trung Quốc).This study was performed to determine the prevalence, risk factors, and P32 gene characteristics of lumpy skin disease (LSD) in cattle in Tra Vinh and Dong Thap provinces from October 2021 to June 2022. The studied result showed that there were 187 cattle raising households out of 1,459 surveyed households positive with cattle LSD, accounting for 12.82%, and 91.67 % compared to the testing households (187/204). From 187 outbreaks in Tra Vinh and Dong Thap provinces, there were 516/1,285 surveyed cattle infected with LSD, accounting for 40.16%. The ratio of cattle disease in Tra Vinh was 41.46% and in Dong Thap was 38.46% (similarity with P=0.477). The cattle were infected with LSD depending on age, husbandry methods, and gender. The mortality rate was 9.11%. The common symptoms of LSD cattle included fever, multiple skin nodules, tired, inverted conical zone of necrosis, face, brisket, and leg edema. The risk factors affecting to the disease included the cattle household farms were close to each other (<
100m), near markets (<
150m), there was not insect nets, regularly disinfecting, humans and arthropod insects as flies and mosquitoes transferred pathogen. The genetic characteristics of the LSD virus circulating in Tra Vinh and Dong Thap provinces were 100% similar to those of the virus strains previously determined in Viet Nam and in Xinjiang (China).

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