Yếu tố nguy cơ liên quan đến huyết thanh dương tính virus PRRS mức hộ chăn nuôi ở tỉnh Phú Thọ và Quảng Ninh

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Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2019

Mô tả vật lý: tr.12

Bộ sưu tập: Metadata

ID: 294349

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A cross-sectional study was conducted in 200 household pig farms in Phu Tho and Quang Ninh provinces from July-October 2017 to determine the prevalence of antibody to PRRSV and to identify possible risk factors associated with sero-positivity of this virus. The selected farms were visited, and interviewed to collect the information on farm characteristics and husbandry practices and 400 serum samples. The studied results showed that a series of farm sanitary and management practices relating to biosafety and epidemic prevention, such as: Input/output together measure
Isolation of new animal before introduction into the pig herd were not paid attention
More than 13% of households discharged pig manure directly into rivers and lakes and the rate of PRRS vaccination was very low, reaching only 9% in Phu Tho province and 20% in Quang Ninh province. The everage PRRSV sero-prevalence in unvaccinated animals varied between 15% and 20% in Phu Tho province and Quang Ninh province. The main risk factors associated with PRRSV sero-positivity including pig farms located near the public ponds, animal wastes were untreated
and pens were not cleaned and disinfected periodically.Một nghiên cứu cắt ngang được thực hiện trên 200 hộ chăn nuôi lợn ở tỉnh Phú Thọ và tỉnh Quảng Ninh từ tháng 7 đến tháng 10 năm 2017 nhằm bước đầu khảo sát sự lưu hành kháng thể kháng virus PRRS và xác định các yếu tố nguy cơ có liên quan đến tình trạng huyết thanh dương tính đối với virus này. Thông tin về đặc điểm trang trại và các biện pháp thực hành trong chăn nuôi và 400 mẫu huyết thanh đã được thu thập. Kết quả nghiên cứu cho thấy một số biện pháp thực hành và quản lý trang trại liên quan đến an toàn sinh học, phòng ngừa và kiểm soát dịch bệnh trong chăn nuôi lợn chưa được các hộ chăn nuôi chú trọng, đó là: Thực hiện biện pháp cùng nhập-cùng xuất
cách ly lợn mới mua
còn trên 13% số hộ chăn nuôi không xử lý chất thải. Tỷ lệ số hộ tiêm phòng vacxin lợn tai xanh rất thấp, ở tỉnh Phú Thọ tỷ lệ tiêm phòng chỉ đạt 9% và ở tỉnh Quảng Ninh tỷ lệ này là 20%. Tỷ lệ lưu hành huyết thanh dương tính virus PRRS ở lợn chưa tiêm phòng là 20% và 15% ở tỉnh Phú Thọ và tỉnh Quảng Ninh. Các yếu tố nguy cơ liên quan đến huyết thanh dương tính virus PRRS bao gồm chăn nuôi lợn gần ao hồ công cộng, không xử lý chất thải chăn nuôi, không định kỳ sử dụng hóa chất khử trùng chuồng trại.

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