Tình hình nhiễm cầu trùng trên bò tại Tỉnh Sóc Trăng

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Tác giả: Ái Tiên Lư, Hồ Bảo Trân Nguyễn, Hữu Hưng Nguyễn

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.54

Bộ sưu tập: Metadata

ID: 346587

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A survey on the prevalence of bovine coccidiosis was conducted in Soc Trang province from October, 2021 to May, 2022. The objective of study aimed to determine the prevalence and identification of Eimeria species. A total of 363 cattle fecal samples were collected from three different cattle age groups: under 6 months old, 6-12 months old, and over 12 months old in the surveyed areas for identifying coccidiosis. The studied result showed that 38.57% of cattle raising in Soc Trang province were infected with Eimeria species. The cattle at all ages were infected with coccidiosis. The highest infection rate was found in the cattle age group under 6 months with 60.00%, followed by the cattle age group at 6-12 months old with 45.67% and the lowest infection rate was found in the cattle age group over 12 months old with 17.73%. The infection intensity with Eimeria species of fecal samples at level 1+, 2+, 3+ was 67.86%, 25.71%, and 9.29%, respectively. The appeared frequency of Eimeria spp. in diarrhea fecal samples (62.86%) was higher than that in the normal fecal samples (58.33%). Five different Eimeria species were identified, including E. bovis, E. zuernii, E. alabamensis, E. canadensis, and E. auburnensis. Among them, E. bovis (16.12%) and E. zuernii (8.82%) were considered to be the two highly virulent species causing coccicosis in cattle in Soc Trang province
followed by 3 species: E. alabamensis, E. canadensis and E. auburnensis with the appeared rate was 7.16%, 6.61%, and 5.51%, respectively. The cattle raising in Soc Trang was infected at the same time with 2, 3, 4, 5 Eimeria species with the infection rate was 27.86%, 11.43%, 9.29%, and 7.14%, respectivelyKhảo sát tình hình nhiễm cầu trùng trên bò tại tỉnh Sóc Trăng được thực hiện từ tháng 10 năm 2021 đến tháng 5 năm 2022, nhằm xác định tỷ lệ nhiễm và định danh các loài noãn nang cầu trùng trên bò tại địa bàn khảo sát. Kết quả phân tích 363 mẫu phân bò thu thập ở 3 nhóm tuổi: <
6 tháng, 6-12 tháng và >
12 tháng tuổi trên địa bàn khảo sát cho thấy đàn bò tại tỉnh Sóc Trăng bị nhiễm cầu trùng với tỷ lệ là 38,57%. Bò ở mọi lứa tuổi đều nhiễm cầu trùng, trong đó bò <
6 tháng tuổi có tỷ lệ nhiễm cao nhất (60,00%), kế đến là bò ở giai đoạn 6-12 tháng tuổi chiếm 45,67% và >
12 tháng tuổi chiếm 17,73%. Trong số các mẫu phân nhiễm cầu trùng, số mẫu có cường độ nhiễm ở mức 1+ chiếm tỷ lệ cao nhất (67,86%), kế đến là các mẫu có cường độ nhiễm cao ở mức 2+ và 3+ chiếm tỷ lệ lần lượt là 25,71% và 9,29%. Dựa vào trạng thái phân, tần số xuất hiện các loài noãn nang cầu trùng Eimeria spp. trong những mẫu phân tiêu chảy (62,86%) cao hơn so với mẫu phân có trạng thái bình thường (58,33%). Kết quả định danh phân loại noãn nang cầu trùng bằng hình thái học cho thấy có sự hiện diện 5 loài noãn nang cầu trùng gồm Eimeria bovis, Eimeria zuernii, Eimeria canadensis, Eimeria auburnensis và Eimeria alabamensis. E. bovis (16,12%) và E. zuernii (8,82%) là 2 loài cóđộc lực cao và có khả năng gây bệnh cho bò tại tỉnh Sóc Trăng, theo sau đó là E. alabamensis, E. canadensis và E. auburnensis với tỷ lệ nhiễm lần lượt là 7,16%
6,61% và 5,51%. Bò nuôi tại tỉnh Sóc Trăng nhiễm ghép 2 loài cầu trùng là phổ biến nhất với tỷ lệ 27,86%
tiếp theo là nhiễm ghép 3, 4, 5 loài cầu trùng với tỷ lệ lần lượt 11,43%
9,29% và 7,14%.

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