1. Effects of Small Peptide Supplementation on Growth Performance, Intestinal Barrier of Laying Hens During the Brooding and Growing Periods
- Author
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Xiyu Zhao, Yao Zhang, Wentao He, Yuanhang Wei, Shunshun Han, Lu Xia, Bo Tan, Jie Yu, Houyang Kang, Mengen Ma, Qing Zhu, Huadong Yin, and Can Cui
- Subjects
small peptide ,laying hen ,growth performance ,immune ,anti-oxidation ,intestinal health ,Immunologic diseases. Allergy ,RC581-607 - Abstract
The growing period is a critical period for growth and development in laying hens. During this period, chicks grow rapidly, but are accompanied by unstable digestive function, incomplete organ development, and high mortality. Small peptide, a feed additive, which has been proved to promote intestinal development and immunity in poultry. In order to elucidate the effects of small peptides on growth performance, immunity, antioxidant capacity, and intestinal health of growing laying hens, a total of 900 Tianfu green shell laying hens (1-day-old) were randomly divided into 5 treatments with 6 replicates of 30 birds each in this 18-week trial. Dietary treatments included a corn-soybean meal-based diet supplemented with 0 g/kg, 1.5 g/kg, 3.0 g/kg, 4.5 g/kg and 6.0 g/kg small peptide, respectively. The results showed that the supplementation of small peptides significantly increased growth rate (P
- Published
- 2022
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