Tỷ lệ mang trùng liên cầu (Streptococcus suis) trên lợn khỏe ở các độ tuổi khác nhau ở miền Đông Nam Bộ=Prevalence of Streptococcus suis in healthy pigs at different stages of production in Southeast Viet Nam

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Tác giả: Hải Nguyễn Ngọc, Hiền Lê Thanh, Quỳnh Lê Thị Như, Tiên Lê Hồng Thủy

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2018

Mô tả vật lý: tr.42

Bộ sưu tập: Metadata

ID: 498600

Thêm vào giỏ

Liên cầu khuẩn (Streptococcus suis) là tác nhân cơ hội gây bệnh màng não, viêm khớp, viêm phổi,nhiễm trùng máu ở lợn
đặc biệt S. suis serotype 2 có thể lây nhiễm từ động vật sang người và gâytử vong cho người. Nghiên cứu này được thực hiện trên 506 mẫu dịch xoang miệng của lợn khỏe ở bốn nhóm tuổi khác nhau từ các trại chăn nuôi lợn tại Thành phố Hồ Chí Minh, tỉnh Đồng Nai vàtỉnh Bình Dương. Nghiên cứu đã phân lập được Streptococcus sp. bằng phương pháp nuôi cấy và đãđịnh danh được S. suis và S. suis serotype 2 và serotype ½ bằng phản ứng multiplex PCR. Kết quảnghiên cứu cho thấy, tỷ lệ lợn khỏe mang S. suis là 12,05% (63/506), trong đó S. suis serotype 2hoặc serotype ½ chiếm 0,99% (5/506). Tỷ lệ lợn khỏe mang trùng S. suis cao nhất là nhóm lợn contheo mẹ (26,61%), tiếp theo là lợn con cai sữa (9,55%), lợn nái (9,09%) và thấp nhất là nhóm lợn thịt(4,55%). S. suis serotype 2 hoặc serotype ½ được phát hiện trong mẫu thu nhận từ lợn con cai sữa vàlợn con theo mẹ. Lợn khỏe mang S. suis được tìm thấy ở tất cả ba tỉnh/thành đã khảo sát nêu trênvới tỷ lệ là 90,91%. Như vậy, việc chăm sóc và phòng bệnh cho lợn con cần được lưu tâm nhằm hạnchế nhiễm bệnh do S. suis cho đàn lợn cũng như người chăn nuôi.Streptococcus suis is an opportunistic agent causing meningitis, arthritis, pneumonia, andsepticemia in pigs. Especially, S. suis serotype 2, can be transmitted from animal to human,and leading to the death of the patients. In this study, the oral cavity fluid samples from 506healthy pigs in four different stages of production in the pig farms in Ho Chi Minh City, DongNai and Binh Duong provinces were collected and investigated. The isolation of Streptococcussp. and identification of S. suis and S. suis serotype 2 or serotype ½ were obtained basingon bacterial cultivation techniques and multiplex PCR assay, respectively. The studied resultshowed that 12.45% (63/506) of the healthy pigs carried S. suis, in which S. suis serotypes 2 or½ accounting for 0.99% (5/506). The highest infection rate was in the suckling piglets (26.36%),followed by the nursing piglets (9.55%), the lactating sows (9.09%) and the meat pigs (4.55%).The infection rate of the healthy pigs with S.suis in all three investigating provinces accountedfor 90.91%. Thus, the care and prevention for piglets should be noted to limit the infection andtransmission of S. suis to pig as well as pig farmer.

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