Một số đặc điểm bệnh lý của lợn rừng nuôi mắc dịch tiêu chảy cấp do virus PED (Porcine epidemic diarrhea)

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Hữu Nam Nguyễn, Thị Thơm Nguyễn, Vũ Sơn Nguyễn, Hồng Ngâ Phạm

Ngôn ngữ: vie

Ký hiệu phân loại: 591.67 Specific topics in natural history of animals

Thông tin xuất bản: Khoa học nông nghiệp Việt Nam, 2018

Mô tả vật lý: 223-231

Bộ sưu tập: Metadata

ID: 492298

Thêm vào giỏ

Ba mươi lăm con lợn rừng từ 1 - 4 tuần tuổi nghi mắc dịch tiêu chảy cấp (PED) thu nhận từ các trang trại nuôi lợn rừng thuộc tỉnh Hà Giang được sử dụng trong nghiên cứu. Kết quả chẩn đoán bằng phương pháp RT-PCR cho thấy tỷ lệ dương tính với virus PED rất cao: 74,3% mẫu ruột, hạch màng treo ruột và 54,3% mẫu phân. Triệu chứng lâm sàng chủ yếu của lợn rừng mắc PED là: Ủ rũ, mệt mỏi, phân lỏng, tanh, màu vàng
gầy gò
nằm chồng đống, nằm trên bụng mẹ
bỏ ăn, mắt trũng sâu
uống nước nhiều
lười bú
thân nhiệt giảm và thở nhanh... với tỷ lệ tương ứng là: 100
100
80,8
76,9
69,2
57,7 và 53,8%. Bệnh tích đại thể chủ yếu là: dạ dày
ruột non căng phồng, thành mỏng, chất chứa màu vàng, lợn cợn
hạch màng treo ruột sung huyết, xuất huyết
gan sưng, tụ máu đỏ sẫm, hạch bẹn nông sưng to
hậu môn dính bết phân màu vàng, phổi viêm, tụ huyết
lách sung huyết và túi mật căng to với tỷ lệ lần lượt là: 100
100
80,8
69,2
69,2
69,2
61,5 và 57,7%. Bệnh tích vi thể chủ yếu là: tế bào biểu mô ruột non thoái hóa, hoại tử, lông nhung tù đầu, ngắn lại, tăng sinh nang lypho thành ruột, thâm nhiễm tế bào viêm ở hạ niêm mạc ruột. Tế bào gan bị thoái hóa mỡ, xuất huyết kẽ thận, phổi viêm, sung huyết.Thirty-five piglets aged from 1 to 4 weeks were collected from wild boar farms in Ha Giang province. The RT-PCR was used to confirm porcine epidemic diarrhea (PED) virus. The results showed that the proportion of positive samples was 74.3% and 54.3% for small intestine and mesenteric lymph node and for fecal samples, respectively. The main clinical signs of PED included weakness, depression, and diarrhea with loose, fishy, and yellow stools (100%) and weight loss (80.8%). Suckling pigs showed anorexia, huddling together, laying on the sow (76.9%), dehydration (69.2%), loss of appetite (57.7%), hypothermia and heaving (53.8%). The autopsies showed distended stomach containing curd and undigested food (100%), thinness of the wall of small intestine and watery yellow translucent content in small intestine (100.0%), hyperemia and hemorrhage of mesenteric lymph nodes (80.8%), enlargement of lymph nodes in other organs (69.2%)
pale liver (69.2%), pneumonia (61.5%), splenic congestion, and gallbladder enlargement (57.7%). Microscopic lesions included small intestinal congestion, hemorrhage, severe villous atrophy, scraped mucosa, lymphoid follicles hyperplasia, inflammatory cell infiltration, degeneration, and necrosis. Congestion and inflammatory cells infiltration were observed in liver, spleen, and lung. In addition, hepatocellular degeneration and lipid deposition were observed in the liver.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR