HIỆN TRẠNG BỆNH VÀ KHÁNG SINH SỬ DỤNG Ở CÁ RÔ PHI (Oreochromis sp.) NUÔI TẠI HẢI DƯƠNG, BẮC NINH VÀ BẮC GIANG

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Tác giả: Thị Mây Lê, Thị Nguyện Nguyễn, Thị Vân Phan, Thị Mỹ Hạnh Trương, Thị Thành Vinh Trương

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2023

Mô tả vật lý: tr.410-414

Bộ sưu tập: Metadata

ID: 339865

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Cá rô phi (Oreochromis sp.) là một trong những đối tượng nuôi cá nước ngọt có sản lượng cao, đáp ứng được nhu cầu tiêu thụ nội địa cũng như yêu cầu xuất khẩu. Tuy nhiên, nghề nuôi vẫn còn gặp nhiều khó khăn, đặc biệt dịch bệnh và quản lý kháng sinh trong quá trình nuôi. Mục đích của nghiên cứu này nhằm cung cấp dữ liệu ban đầu về hiện trạng bệnh và thuốc kháng sinh sử dụng tại vùng nuôi cá rô phi ở Hải Dương, Bắc Ninh và Bắc Giang. Phương pháp điều tra phỏng vấn trực tiếp người nuôi theo bộ câu hỏi được áp dụng. Kết quả cho thấy, cá nhiễm bệnh có dấu hiệu điển hình như đục mắt, lồi mắt, khoang bụng tích dịch hay gan thận sưng chuyển màu nâu hoặc đen với tỷ lệ cao (88,9 - 100%) vào thời điểm tháng 5-8 trong năm. Cá bệnh được trị bệnh bằng kháng sinh, nhưng hiệu quả không cao mặc dù liều sử dụng đã được tăng lên 1,5-2 lần so với hướng dẫn ở bao bì và sử dụng liên tục 5-7 ngày cho 1 đợt dùng. Hộ nuôi ở Bắc Giang và Hải Dương sử dụng Amoxicillin phổ biến với tỷ lệ lần lượt tương ứng 77,8 và 28,6%, trong khi đó ở Bắc Ninh người nuôi cá sử dụng kháng sinh kết hợp Doxycycline+ Florfenicol là phổ biến với 55,6%.Tilapia (Oreochromis sp.) is one of the key freshwater fish culture species, pointing domestic consumption as well as export requirements. However, Tilapia farming still faces many difficulties, including disease outbreaks and antibiotic management during farming. The study aims to provide initial data on disease status and antimicrobial used in tilapia farming areas in Hai Duong, Bac Ninh and Bac Giang provinces. The method of face -face interview with farmers according to the questionnaire was applied. The results showed that diseased fish have typical clinical signs such as cloudy eyes, pop eyes, fluid accumulation in the intestine/abdominal cavity or livers and kidneys, turn brown or black which are infected with a high rate (88.9-100%) from May to August every year. Antimicrobial are commonly used to treat fish diseases, however the effectiveness of the treatment was low, although the dose has been increased 1.5-2 times compared to the instructions in the package and used continuously for 5-7 days for once use time. Amoxicillin is commonly used in Bac Giang and Hai Duong with the rate of 77.8 and 28.6%, respectively, while in Bac Ninh, the combination antibiotic Doxycycline + Florfenicol is popular with 55.6%.

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