Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 409961
Title Effect of four processed animal proteins in the diet on behavior in laying hens
Author(s) Krimpen, M.M. van; Veldkamp, T.; Binnendijk, G.P.; Veer, R. de
Source Applied Animal Behaviour Science 132 (2011)3-4. - ISSN 0168-1591 - p. 138 - 145.
Department(s) Livestock Research
LR - Backoffice
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) feather pecking behavior - nonstarch polysaccharide concentration - growing bantams - particle sizes - bone meal - performance - tryptophan - poultry - damage - digestibility
Abstract An experiment was performed to investigate the effect of animal versus vegetable protein sources in the diet on the development of behavior in laying hens. A diet containing protein sources of only vegetable origin was compared with four diets, each containing one of four processed animal proteins (PAPs). Two PAPs (Daka-58 and Sonac-60) were classified as meat meals, whereas the remaining ones (Daka-40 and Sonac-50) were classified as meat and bone meals. The impact of a control diet (without PAP) versus four PAP diets (50g/kg CP of animal origin) on behavior was determined. All diets were isocaloric (AMEn=11.8MJ/kg) and isonitrogenous (dig. lysine=6.8g/kg). Hens were housed in 40 floor pens (12 hens/pen, 8 pens/treatment) from 20 to 40 weeks of age. Supplementation of PAPs did not generally reduce feather pecking behavior. Nevertheless, Daka-40 and Sonac-50 fed hens showed a delay in the development of feather damage and, simultaneously, an increase in litter condition, foraging and walking behavior, and floor pecks compared to hens fed Sonac-60. These shifts seemed to be partly related with the intake of digestible glycine, available phosphorus, calcium, potassium, and sodium
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