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Measurement of green total factor productivity on Chinese laying hens: From the perspective of regional differences
Eggs contain the essential cholesterol and protein for the human body, which plays an irreplaceable role in human survival, production and life. There are significant differences in the development of laying hens feeding in different regions. It is of great significance to improve egg production and...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8686699/ https://www.ncbi.nlm.nih.gov/pubmed/34352036 http://dx.doi.org/10.1371/journal.pone.0255739 |