Ảnh hưởng của Tributyrin đến sinh trưởng và sức khỏe của lợn con sau cai sữa

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Tác giả: Thị Thuỷ Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học Kỹ thuật Chăn nuôi 2020

Mô tả vật lý: 42 - 47

Bộ sưu tập: Metadata

ID: 408009

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Thí nghiệm đánh giá việc bổ sung chế phẩm Tributyrin (TB) vào thức ăn hoặc nước uống cho lợn con sau cai sữa, để xác định ảnh hưởng đến sinh trưởng, tỷ lệ tiêu chảy và nhiễm vi khuẩn E.coli trong đường tiêu hóa của lợn. Thí nghiệm được bố trí theo thể thức khoi hoàn toàn ngẫu nhiên trên 90 lợn con sau cai sữa ở 26-28 ngày tuổi (7,3±1,5 kg/con), với 3 nghiệm thức (NT) và 3 lần lặp lại, mỗi lần lặp lại là 1 ô chuồng (10 con/ô), thí nghiệm kéo dài 6 tuần. Nghiệm thức đối chứng (ĐC) là thức ăn hỗn hợp (TAHH) không bổ sung thêm chế phẩm TB vào thức ăn hoặc nước uống
các NT còn lại được bổ sung chế phẩm TB vào thức ăn hỗn hợp (TBTA) với liều 1,0 g/kg TAHH, hoặc nước uống (TBN) liều 0,5 g/l. Kết quả về tăng khối lượng (TKL) bình quân của lợn được bổ sung chế phẩm TB vào nước uống (430,3 g/con/ngày) cao hơn khi bổ sung vào thức ăn (416,3 g/con/ngày), cả 2 NT có bổ sung đều cao hơn lợn ở ĐC (395,7 g/con/ngày)
Tiêu tốn thức ăn (TTTA) của lợn có bổ sung chế phẩm vào nước uống có khuynh hướng tiêu thụ thức ăn cao hơn lợn ở 2 NT còn lại, tuy sự khác biệt không có ý nghĩa thống kê
Điều này dẫn đến hệ số chuyển hóa thức ăn (FCR) của lợn ở TBN (2,04 kg TA/kg TKL) cao hơn ĐC (2,17 kg TA/kg TKL). Về tỷ lệ và mức độ tiêu chảy của lợn ở NT có bổ sung TB vào nước (5,34% và 0,10) và thức ăn (5,41% và 0,10) đều thấp hơn lon ĐC (6,62% và 0,14). Tỷ lệ nhiễm vi khuẩn E.coli trong phần lớn được bổ sung chế phẩm vào nước ở uống (1,50 x10° CFU/g phân) và thức ăn (1,55 x10° CFU/g phân) đều thấp hơn lợn không có bổ sung (1,79 x10 CFU/g phân). Nhìn chung khi bổ sung chế phẩm tributyrin vào thức ăn hoặc nước uống có khuynh hướng cải thiện tăng khối lượng, hệ số chuyển hóa thức ăn, đồng thời giảm tỷ lệ tiêu chảy và tỷ lệ nhiễm E.coli ở lợn con sau cai sữa. Bổ sung vào nước uống bước đầu có hiệu quả tốt hơn bổ sung vào thức ăn., Tóm tắt tiếng anh, An experiment was conducted to evaluate the effects of Tributyrin supplementation in the diet or drinking water on the performances, diarrhoea incidence and E.coli in feces of weaned piglets. A total of 90 crossbred castrated (YxL) piglets (7.3+1.5kg) at weaning (26-28 days old) were allocated into three treatments in a Randomized complete block design. In each treatment, the piglets were divided randomly into 3 pens (replicate), with 10 piglets per pen. The control diet (EĐC) was commercial feed (TAHH), which have no tributyrin supplementation in the diet or drinking water
and the experimental diets were commercial feed supplemented with tributyrin in feed (TBTA) at level of 1.0 g/kg feed or in drinking water (TBN) at level 0.5 g/kg feed. Results showed that, ADG was highest in piglets supplemented in drinking water (430.3 g/head/day), then in the diet (416.3 g/head/day), and lowest in piglets fed no supplementation (395.7 g/head/day). Feed intake of piglets in TBN was higher than that in 2 other treatments, eventhough there was no significant different. As results, FCR was lowest in piglets supplemented in drinking water (2.04kg feed/kg gain), and highest in control piglets (2.17kg feed/kg gain). Diarrhoea incidence and fecal score was lowest in TBN (5.34% and 0.10) and highest in ĐC (6.62% and 0.14). Piglets fed commercial diet without any supplementation was effected by E.coli with highest content (1.79x10 6 CFU/g feces), and lowest in TBN (1.50x10 6CFU/g feces) and TBTA (1.55x10 6CFU/g feces). In conclusion, supplementaion of tributyrin in the diet or drinking water of weaned piglets trend to improve growth performance
reduced diarrhoea incidence, fecal score and E.coli in feces of weaned piglets. Tributyrin supplementation into drinking water have trend be better than into the feed.

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