ABSTRACT A total of 120 pigs [Duroc × (Yorkshire × Landrace)], with an average BW of 25.22 ± 1.88 kg, were randomly allotted to 4 experimental diets based on initial BW and sex (six replicate pens/treatment; 5 pigs/pen) to determine the effects of Enterococcus faecium (EF) with and without xylanase in growing pigs. The experiment lasted for 6 weeks. Dietary treatments included CON, basal diet; EF1, CON + 0.002% (EF); EF2, CON + 0.005% EF; EX, CON + 0.002% EF + 0.01% Xylanase. During the overall study, pigs fed EX diet increased ADG and G:F compared to pigs fed CON and EF1 diets (P<0.05). Pigs fed EF2 and EX diets had a greater (P<0.05) energy digestibility and Lactobacillus counts than pigs fed CON diet. Pigs fed EX diet decreased creatinine concentrations in the blood and E. coli concentrations compared to pigs fed CON diet (P<0.05) at 6th week. In conclusion, supplementation of growing pigs diet with a combination of EF and xylanase improved performance, nutrient digestibility and faecal Lactobacillus counts and reduced faecal E. coli counts in growing pigs.

中文翻译：

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含有和不含木聚糖酶的屎肠球菌对以玉米和豆粕为基础的日粮对生长猪生长性能、营养消化率、血液特征和粪便微生物群的影响

摘要 总共有 120 头猪 [Duroc × (Yorkshire × Landrace)]，平均体重为 25.22 ± 1.88 kg，根据初始体重和性别随机分配到 4 种实验日粮（六个重复围栏/处理；5 头猪/围栏） ) 以确定使用和不使用木聚糖酶的屎肠球菌 (EF) 对生长猪的影响。实验持续了 6 周。饮食治疗包括 CON、基础饮食；EF1, CON + 0.002% (EF); EF2, CON + 0.005% EF; EX，CON + 0.002% EF + 0.01% 木聚糖酶。在整个研究过程中，与饲喂 CON 和 EF1 日粮的猪相比，饲喂 EX 日粮的猪增加了 ADG 和 G:F（P<0.05）。饲喂 EF2 和 EX 日粮的猪比饲喂 CON 日粮的猪具有更高的能量消化率和乳酸杆菌数量（P<0.05）。与喂食 CON 饮食的猪相比，喂食 EX 饮食的猪降低了血液中的肌酐浓度和大肠杆菌浓度（P < 0. 05) 在第 6 周。总之，在生长猪日粮中添加 EF 和木聚糖酶可改善生长猪的生产性能、营养消化率和粪便乳酸杆菌计数，并减少粪便大肠杆菌计数。