A computer model for welfare assessment of poultry production systems for laying hens
| Autor: | E. Evers, W.G.P. Schouten, H.W.J. Houwers, H. Drost, A.C. Smits, R.M. de Mol |
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| Rok vydání: | 2006 |
| Předmět: |
analysis
AFSG Agrisystems & Environment media_common.quotation_subject analyse aviary systems hens Agrotechnology and Food Sciences Plant Science A-weighting Development animal welfare agrarische productiesystemen models huisvesting dieren animal housing Animal welfare computers Statistics dieren Production (economics) cage systems modellen Mathematics media_common free range animal health business.industry Welfare economics barn systems diergezondheid Agrotechnologie en Levensmiddelentechnologie Poultry farming dierenwelzijn free range husbandry Weighting poultry farming huisvesting pluimveehouderij Animal Science and Zoology Trimming scharrelhouderij business agricultural production systems hennen Agronomy and Crop Science Welfare Wageningen Livestock Research Barn (unit) Food Science |
| Zdroj: | NJAS Wageningen Journal of Life Sciences 54 (2006) 2 NJAS Wageningen Journal of Life Sciences, 54(2), 157-168 |
| ISSN: | 2212-1307 1573-5214 |
| Popis: | A computer model for welfare assessment in laying hens was constructed. This model, named FOWEL (fowl welfare), uses a description of the production system as input and produces a welfare score as output. To assess the welfare status a formalized procedure based on scientific knowledge is applied. In FOWEL the production system is described using 25 attributes (space per hen, beak trimming, free range, etc.), each with two or more levels, together defining the characteristics of a production system. A weighting factor is used for each attribute, based on the available scientific knowledge of the effects of the attribute levels on the welfare aspects. The welfare score of a production system results from the attribute levels combined with the weighting factors. The results show that feeding level, space per hen, perches, water availability and nests were the most important attributes. The attribute free range was of minor importance. FOWEL includes a description of 22 production systems. The welfare score of cage systems was low, of barn and aviary systems medium, and of organic systems high. The presence of a free range resulted only in a small improvement in the welfare score. De auteurs beschrijven een computermodel dat de bijdrage van specifieke elementen van de huisvesting op de gezondheid en welzijn van hennen in diverse productiesystmen, inclusief het nut van een uitloopren, analyseert |
| Databáze: | OpenAIRE |
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