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| Zeltner, Esther; Hirt, Helen; Hauser, J.. |
| In organic agriculture, hens are kept in free range systems. A free range is an enrichment for the hens and brings several advantages for them. Laying hens may show behavioural elements that are not possible in a poultry house. For instance, sunbathing behaviour is only shown in direct sunlight and not in artificial light (Huber, 1987). Hens spend 35.3-47.5% of their time with food searching (Fölsch and Vestergaard, 1981) and, in natural habitats, invertebrate food appears to be an importnat addition to the diet (Savory et al. 1978). Free range systems may also have an influence on animal health and product quality. Lopez-Bote et al. (1998) suggested that some constituents of grass might be of interest for the production of eggs rich in (n-3) fatty acids.... |
| Tipo: Book chapter |
Palavras-chave: Poultry; Health and welfare. |
| Ano: 2004 |
URL: http://orgprints.org/3159/1/zeltner%2Det%2Dal%2D2004%2Dhow%2Dto%2Dmotivate%2Dlaying%2Dhens.pdf |
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