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| Alm, M.; Tauson, R.; Wall, H.. |
| Feather pecking is still a behavioral problem in laying hen flocks, resulting in impaired welfare and economic losses. Environment enrichment, e.g., providing access to litter, to increase foraging behavior in laying hens has been shown to decrease feather pecking. This study investigated the effect of spreading crushed mussel shells (particle size 10 to 20 mm) in the litter area as an environment enrichment and source of calcium for layers receiving a commercial feed and for layers given a feed with 40% less calcium. These treatments were compared with a control involving hens given the commercial feed, but no mussel shells in the litter. The study included 900 Dekalb White layers housed in a single-tier floor system during a production cycle (20 to 72 wk... |
| Tipo: Journal paper |
Palavras-chave: Production systems; Health and welfare; Poultry. |
| Ano: 2016 |
URL: http://orgprints.org/31231/1/pfw056.pdf |
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