Organic trace minerals improve eggshell quality by improving the eggshell ultrastructure of laying hens during the late laying period

The objective of this study was to investigate the effects of low inclusion levels of organic trace minerals (iron, copper, manganese, and zinc) on performance, eggshell quality, serum hormone levels, and enzyme activities of laying hens during the late laying period. A total of 405 healthy hens (HY...

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Bibliographic Details
Main Authors: J.L. Qiu, Q. Zhou, J.M. Zhu, X.T. Lu, B. Liu, D.Y. Yu, G. Lin, T. Ao, J.M. Xu
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Poultry Science
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0032579119577951