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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7587740/ https://www.ncbi.nlm.nih.gov/pubmed/32115033 http://dx.doi.org/10.1016/j.psj.2019.11.006 |