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Feed particle selection and nutrient intake altered by pecking stone consumption and beak length in free-range laying hens
The present study investigated the effects of pecking stones on feeding behaviour of hens from 16 to 46 weeks of age. Eighteen flocks of Hy-Line Brown hens were housed in 2 commercial free-range housing systems. Farm A housed 10 flocks of beak trimmed (infrared beak treatment) hens in fixed sheds. F...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
KeAi Publishing
2019
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6544746/ https://www.ncbi.nlm.nih.gov/pubmed/31193914 http://dx.doi.org/10.1016/j.aninu.2018.05.003 |