Effects of dietary vitamins supplementation level on the production performance and intestinal microbiota of aged laying hens

The objective of this study was to investigate the effects of higher vitamins supplementation level on the performance, immunity, and intestinal microbiota of old laying hens. Twelve birds were randomly chosen from 312 healthy, 65-wk-old Hy-Line Brown layers for sampling after a 7-wk acclimation per...

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Bibliographic Details
Main Authors: Liping Gan, Yizhu Zhao, Tahir Mahmood, Yuming Guo
Format: Article
Language:English
Published: Elsevier 2020-07-01
Series:Poultry Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0032579120302467