Salmonellosis is a significant public health risk and is often associated with the consumption of poultry products. Colonization of poultry by Salmonella may be affected by dietary ingredients. The objective of the study was to evaluate the effects of hulless barley (HB) and β-glucanase (BGase) on Salmonella colonization in broiler chickens. Day-old broilers (200) were placed in battery cages and fed diets with and without high β-glucan HB (CDC Fibar; 0 and 60%) and BGase (Econase GT 200 P from ABVista; 0 and 0.1%) in a 2 × 2 factorial arrangement. Each treatment was assigned to 10 cages. All the birds were orally challenged with Salmonella Enteritidis LS101 strain at d 21. Broilers were infected with Salmonella Infantis before the S. Enteritidis challenge, and feeding HB decreased Salmonella positive cloacal swabs (%). HB decreased the percentage of birds positive for Salmonella in the spleen at pre-challenge and d 1 post-challenge, whereas increased the percentage positive for the spleen at d 4 post-challenge. BGase did not affect Salmonella colonization and translocation.

沙门氏菌病是一种重大的公共卫生风险，通常与家禽产品的消费有关。沙门氏菌对家禽的定殖可能受膳食成分的影响。本研究的目的是评估去壳大麦 ( HB ) 和 β-葡聚糖酶 ( BGase ) 对肉鸡沙门氏菌定植的影响。日龄肉鸡 (200) 被放置在电池笼中，并在 2 小时内饲喂含和不含高 β-葡聚糖 HB（CDC Fibar；0 和 60%）和 BGase（来自 ABVista 的 Econase GT 200 P；0 和 0.1%）的日粮。 × 2 阶乘排列。每个处理被分配到10个笼子。所有的鸟都用口服激发沙门氏菌在d 21肉鸡感染了肠炎LS101应变S之前的婴儿沙门氏菌。肠炎感染和喂食 HB 减少了沙门氏菌阳性泄殖腔拭子 (%)。在攻击前和攻击后第 1 天，HB 降低了脾脏中沙门氏菌阳性的鸟类百分比，而在攻击后第 4 天增加了脾脏中沙门氏菌阳性的百分比。BGase 不影响沙门氏菌的定植和易位。