Effects of different selenium sources and levels on the physiological state, selenoprotein expression, and production and preservation of selenium-enriched eggs in laying hens

• DOI: 10.1016/j.psj.2023.103347
• Publication Date: 2023-12-04T16:26:58Z
• Authors: Yan Li; Tianming Mu; Ru Li; Sasa Miao; Huafeng Jian; Xinyang Dong; Xiaoting Zou
• Keywords: Selenoprotein; Yolk

Selenium (i.e., Se) is a trace element that vital in poultry nutrition, and optimal forms levels of Se are critical for productivity health. This study aimed to compare the effects sodium selenite (SS), yeast selenium (SY), methionine (SM) at 0.15 mg/kg 0.30 on production performance, egg quality, content, antioxidant capacity, immunity selenoprotein expression laying hens. The trial was conducted 3 × 2 factorial arrangement, total 576 forty-three-wk-old Hyland Brown hens were randomly assigned into 6 treatment groups, with diets supplemented mg Se/kg 0.3 SS, SY SM 8 wk, respectively. Results revealed increased rate compared SS (P < 0.05), whereas different had no effect. Organic improved preservation deposition while preferences yolk albumen. Also, organic enhanced capacity immune functions Se/kg, obvious improvement observed Se/kg. Moreover, mRNA most selenoproteins exhibiting more pronounced Correlation analysis strong positive association between glutathione peroxidase (GPx2), thioredoxin reductases (TrxRs), K (SelK), S (SelS), properties. In conclusion, use low-dose recommended as effective alternative inorganic selenium, dosage from based trail conditions.