Dietary starch structure modulates nitrogen metabolism in laying hens via modifying glucose release rate

The objective of this study was to investigate the effects of starch structure (Amylopectin/Amylose, AP/AM) in a low-protein diet on production performance, nitrogen utilization efficiency, and cecal flora in laying hens. Four hundred eighty 45-wk-age Hy-Line Gray laying hens were randomly allocated...

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Bibliographic Details
Published in:International journal of biological macromolecules 2024-11, Vol.279 (Pt 4), p.135554, Article 135554
Main Authors: Li, Zhuorui, Xu, Jingya, Zhang, Fengdong, Wang, Leiqing, Yue, Yanrui, Wang, Lijun, Chen, Jian, Ma, Hui, Feng, Jia, Min, Yuna
Format: Article
Language:English
Subjects:
Amylopectin
Amylose
Gut microbiota
Laying hens
Nitrogen utilization
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Summary:The objective of this study was to investigate the effects of starch structure (Amylopectin/Amylose, AP/AM) in a low-protein diet on production performance, nitrogen utilization efficiency, and cecal flora in laying hens. Four hundred eighty 45-wk-age Hy-Line Gray laying hens were randomly allocated to five dietary groups and subjected to a 12-wk feeding trial. The AP/AM ratios of the five experiment diets were 1.0, 1.5, 2.0, 3.0, and 4.0. The results indicated that compared to other groups, laying hens fed with AP/AM 4.0 diets showed significantly improved average egg weight and feed conversion ratio (P 
ISSN:0141-8130
1879-0003
1879-0003
DOI:10.1016/j.ijbiomac.2024.135554