Đánh giá tình trạng sức khỏe đường ruột qua số lượng Lactobacillus và Coliforms, E.Coli trên heo cai sữa

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Tác giả: Thiên Thái Đỗ, Quang Thìn Lê, Thị Quỳnh Lan Trần

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.53

Bộ sưu tập: Metadata

ID: 346691

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Đánh giá tình trạng sức khỏe đường ruột của heo cai sữa đã được thực hiện ở 2 trại heo quy mô công nghiệp. Mẫu phân được lấy tại thời điểm một ngày trước khi heo con cai sữa (heo con cai sữa ở 26 ngày tuổi) và 4 thời điểm sau cai sữa đến khi heo đạt 44 ngày tuổi. Số lượng vi khuẩn Lactobacillus của haitrại tại thời điểm một ngày trước cai sữa ở mức 7,80 log CFU/g (trại A) và 7,98 log CFU/g (trại B) và có khuynh hướng giảm vào ngày đầu tiên sau cai sữa (27 ngày tuổi). Sau cai sữa 6 ngày (heo 32 ngày tuổi), số lượng Lactobacillus duy trì ở mức độ ổn định trong khoảng 8,05 log CFU/g đến 8,50 log CFU/g cho đến khi heo đạt 44 ngày tuổi. Số lượng vi khuẩn Coliforms từ các mẫu phân nằm trong khoảng 6,01 log (CFU/g) đến 6,55 log (CFU/g) trong suốt giai đoạn khảo sát. Số lượng vi khuẩn E. coli (ở mức 6 log CFU/g) thấp hơn số lượng có thể gây tiêu chảy trên heo con. Trước cai sữa, 20% tổng số mẫu khảo sát của cả trại A và B có tỷ lệ Lactobacillus:Coliforms ≤ 1,3 cho thấy nguy cơ tiêu chảy thấp
tuy nhiên sau cai sữa một ngày 60% số mẫu có tỷ lệ Lactobacillus: Coliforms ≤ 1,3 cho thấy sự thay đổi rất nhanh của hệ vi sinhvật đường ruột liên quan đến nguy cơ tiêu chảy trên heo và cần ưu tiên biện pháp phòng bệnh cho đàn heoThis research was carried out in two industrial scale pig farms to determine the intestinal health status of the weaning piglets. The stool samples were collected respectively one day pre-weaning (piglets weaned at 26 days old) and 4 times in the post-weaning stage until 44 days old. The number of Lactobacillus bacteria at 7.80 log CFU/g (farm A) and 7.98 log CFU/g (farm B) tended to decrease at the 1st day post-weaning (pig at 27 days old) at both pig farms. At 6 days post-weaning (pig at 32 days old ), Lactobacillus bacteria remained stable between 8.05 log CFU/g and 8.50 log CFU/g until the piglets reached 44 days old. The number of Coliforms isolated from the stool samples showed between 6.01 log (CFU/g) and 6.55 log (CFU/g) throughout the survey period. The number of E. coli (approximately 6 log CFU/g) was below the bacteria number could cause diarrhea in the piglets. In the pre-weaning period, 20% of the fecal samples showed the Lactobacillus:Coliforms ratio ≤ 1.3 in both farms, indicating that the risk of diarrhea was low, however 60% of fecal samples showed this proportion was lower than 1.3 at one day post-weaning. This indicated a significant change in the intestinal microbial flora, associating with the risk of diarrhea in the weaning piglets, and preventive measures must be undertaken as a priority.

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