biostudies-literatureLi RKey R&D Program of Shandong ProvinceKey R&D Program of Jiangxi Province2258188https://www.ebi.ac.uk/biostudies/studies/S-EPMC12674293biostudies-literatureUnknown35(1)Selenium (Se) is an essential micronutrient for humans and animals and is a powerful antioxidant that can promote reproductive and immune functions. The purpose of this study was to evaluate the effects of supplemental dietary selenium-enriched yeast (SeY) on egg quality, gut morphology and microflora in laying hens. In total, 100 HY-Line Brown laying hens (45-week old) were randomly allocated to two groups with 10 replicates and fed either a basal diet (without Se supplementation) or a basal diet containing 0.2 mg/kg Se in the form of SeY for 8 weeks. The Se supplementation did not have a significant effect on egg quality and intestinal morphology of laying hens. Based on the 16S rRNA sequencing, SeY dietary supplementation effectively modulated the cecal microbiota structure. An alpha diAnimal biotechnologyEffects of selenium-enriched yeast dietary supplementation on egg quality, gut morphology and caecal microflora of laying hens.PMC126742932022TZXD001520202BBFL63029Liu JYou JLiu MQin MSha YMa HLiang MLin YLi RLi BZhang LWang ZfalseEffects of selenium-enriched yeast dietary supplementation on egg quality, gut morphology and caecal microflora of laying hens.Selenium (Se) is an essential micronutrient for humans and animals and is a powerful antioxidant that can promote reproductive and immune functions. The purpose of this study was to evaluate the effects of supplemental dietary selenium-enriched yeast (SeY) on egg quality, gut morphology and microflora in laying hens. In total, 100 HY-Line Brown laying hens (45-week old) were randomly allocated to two groups with 10 replicates and fed either a basal diet (without Se supplementation) or a basal diet containing 0.2 mg/kg Se in the form of SeY for 8 weeks. The Se supplementation did not have a significant effect on egg quality and intestinal morphology of laying hens. Based on the 16S rRNA sequencing, SeY dietary supplementation effectively modulated the cecal microbiota structure. An alpha di2024-01-01T00:00:00Z2024 Nov2026-06-07T04:53:51.762Z2026-06-07T03:06:48.132ZS-EPMC126742933819380210.1080/10495398.2023.2258188