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首页> 外文期刊>International Journal of Poultry Science >Exhibit differential functions of various Antibiotic Growth Promoters in broiler growth, immune response and gastrointestinal physiology.
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Exhibit differential functions of various Antibiotic Growth Promoters in broiler growth, immune response and gastrointestinal physiology.

机译:在肉鸡生长,免疫反应和胃肠道生理方面展示各种抗生素生长促进剂的差异功能。

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Six-hundred forty broilers were allotted into four dietary supplementation of none, 55 ppm bacitracin, 2.5 ppm nosiheptide, or 55 ppm Oxytetracycline (OTC) in a corn-soybean meal basal diet with eight pens in each treatment to investigate the effects of added various Antibiotic Growth Promoters (AGP) in diet on growth performance, immune response and gastrointestinal physiology. Data showed that nosiheptide supplementation but not bacitracin or OTC increased feed efficiency in starter period. The nosiheptide decreased the small intestine weight, IgA-positive cells along the intestinal tract and ileal mucosal secretory IgA (sIgA) concentration but bacitracin and OTC increased the IgA-positive cells in ileum. The nosiheptide supplementation group also elevated ileal sucrase and maltase activities and reduced the Lactobacillus counts in rectal contents as compared to the other treatment groups. In conclusion, the enhanced disaccharidase activity, diminished rectal Lactobacillus counts and reduced immune activated status are possibly the important factors for the improvement of feed efficiency of broilers on dietary nosiheptide supplementation from days 0-21.CAS Registry Numbers 9001-42-7 1405-87-4 9001-57-4 56377-79-8 79-57-2
机译:在玉米-豆粕基础日粮中,将六百四十只肉鸡分配到四种膳食补充剂中,其中一种不添加,55 ppm杆菌肽,2.5 ppm Nosiheptide或55 ppm土霉素(OTC),每种处理中用八支钢笔来研究添加的各种添加剂的影响饮食中的抗生素生长促进剂(AGP)对生长性能,免疫反应和胃肠道生理的影响。数据显示,在开始阶段,添加诺西肽但不添加杆菌肽或OTC可以提高饲料效率。 Nosiheptide降低了小肠重量,沿肠道的IgA阳性细胞和回肠粘膜分泌性IgA(sIgA)的浓度,而杆菌肽和OTC增加了回肠中的IgA阳性细胞。与其他治疗组相比,诺西肽补充组还提高了回肠蔗糖酶和麦芽糖酶的活性,并减少了直肠内容物中乳酸杆菌的数量。综上所述,从0-21天开始,日粮中添加Nosiheptide可以提高二糖苷酶活性,减少直肠乳酸杆菌计数和降低免疫激活状态,这可能是提高肉鸡饲料效率的重要因素。 9001-42-7 1405-87-4 9001-57-4 56377-79-8 79-57-2

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