Hiệu quả một số giải pháp thay thế kháng sinh trong phòng tiêu chảy ở lợn

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Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học kỹ thuật Thú y, 2019

Mô tả vật lý: tr.38

Bộ sưu tập: Báo, Tạp chí

ID: 312746

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Để tìm ra giải pháp thay thế sử dụng kháng sinh trong phòng tiêu chảy ở lợn, chế độ ăn khác nhau và các biện pháp an toàn sinh học được áp dụng trong nghiên cứu này. Tổng số 72 con lợn cho ba lần thử nghiệm được chia thành 4 nhóm (6 lợn/nhóm) nuôi trong 28 ngày: Nhóm N (đối chứng âm)
Nhóm P (thức ăn được bổ sung 0,1% colistin-đối chứng dương)
Nhóm E (thức ăn được bổ sung EM), Nhóm G (thức ăn được bổ sung 1% chè xanh). Kết quả thử nghiệm cho thấy khối lượng lợn thu được ở cuối kỳ giữa 4 nhóm không có sự khác biệt có ý nghĩa (p>
0,05). Tuy nhiên, lợn ở nhóm E có mức tăng trọng cao hơn so với các nhóm còn lại ở cả ba lần thử nghiệm. Không có lợn bị tiêu chảy, nhưng Salmonella spp. có mặt trong phân của lợn ở nhóm N và nhóm E ở lần thử nghiệm đầu tiên. Số lượng vi khuẩn hiếu khí và tổng số E.coli/Coliforms có trong phân lợn ở nhóm G (bổ sung trà xanh vào thức ăn) thấp hơn nhiều so với nhóm E (bổ sung EM vào thức ăn). Không phát hiện được virus PED, TGE và Rotavirus trong phân lợn ở tất cả các thử nghiệm. Như vậy, lợn được cho ăn thức ăn bổ sung trà xanh hoặc EM và được nuôi trong môi trường an toàn sinh học thì không cần bổ sung thêm kháng sinh vào chế độ ăn để đạt tăng trưởng tối đa và giảm tỷ lệ tiêu chảy.In order to find out the solutions replacing antibiotics in preventing diarrhea for post-weaning piglets, combinations of diet modification and biosecurity measures were used in this study. A total of 72 pigs for three trials were randomly allotted to 4 dietary groups (6 pigs for each group) for a trial in 28 days: Group N (basal diet alone, negative control)
Group P (basal diet with 0,1% colistin, positive control)
Group E (basal diet with effective microorganisms -EM), group G (basal diet with 1% green tea). The experimental results indicated that the final body weight of pigs among the 4 groups was not significant difference (p>
0,05). However, the weight gain of pigs in the group E showed higher than those in the other groups of all three trials. No incidence of diarrhea, but Salmonella spp. presented in pig feces of the group N and group E in the first trial. The count of aerobic bacteria, E.coli and Coliforms in pig feces of the group G (supplementing polyphenol green tea in the diet) were lower than those of the group E (supplementing EM in the diet). None of fecal viruses: PED, TGE and rotavirus was detected in pig feces of all trials. The results of this study indicated that the pigs fed EM and polyphenol green tea supplementing in the diets and raised in a biosecurity environment do not require dietary antibiotic supplementation in order to maximize the growth and reduce diarrheal incidences.

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