Effects of Antibiotics, Zinc Oxide or a Rare Earth Mineral-Yeast Product on Performance, Nutrient Digestibility and Serum Parameters in Weanling Pigs
Effects of Antibiotics, Zinc Oxide or a Rare Earth Mineral-Yeast Product on Performance, Nutrient Digestibility and Serum Parameters in Weanling Pigs
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DOI：
10.5713/ajas.2010.90569
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发表时间：
2010-08-01
期刊：
影响因子：
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通讯作者：
Thacker, Philip A.
中科院分区：
文献类型：
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作者：
Han, Yung-Keun;Thacker, Philip A.
本试验通过两个试验比较了添加新型稀土矿物质-酵母、氧化锌和抗生素对断奶仔猪生产性能、养分消化率和瘤胃参数的影响。试验一选用24日龄、体重6.28kg的杂交种公猪150头，分别饲喂基础日粮（不添加抗生素）、添加抗生素（33 ppm泰妙菌素和100 ppm金霉素）、添加氧化锌（1,500或2, 500 ppm）和添加0.1%肽结合稀土矿物质酵母的基础日粮。试验2选用576头28日龄、体重7.20 kg的杂交种公猪，饲喂与试验1相同的日粮，只在日粮中添加1.0%的Celite 545作为消化率指标。然而，不包括阴性对照。在实验1中，体重增加显著降低（p
Two experiments were conducted to compare the effects of feeding a newly-developed rare earth mineral-yeast product, zinc oxide (ZnO) or antibiotics on the performance, nutrient digestibility and scrum parameters of weanling pigs. In experiment 1, 150 crossbred barrows (24 d old and 6.28 kg BW) were fed one of five dietary treatments consisting of an unsupplemented basal diet or the basal diet supplemented with antibiotics (33 ppm tiamulin and 100 ppm chlortetracycline), ZnO (1,500 or 2,500 ppm) or 0.1% peptide-bound rare earth mineral-yeast. In experiment 2, 576 crossbred barrows (28 d old and 7.20 kg BW) were fed the same diets as those used in experiment 1 modified only by the addition of 1.0% Celite 545 to all diets as a digestibility marker. However, the negative control was not included. In experiment 1, weight gain was significantly lower (p