Let me sleep! Welfare of broilers (Gallus gallus domesticus) with disrupted resting behaviour |
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| Authors: | J Yngvesson M Wedin S Gunnarsson L Jönsson H Blokhuis A Wallenbeck |
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| Institution: | 1. Department of Animal Environment and Health, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Skara, Sweden;2. Department of Animal Breeding and Genetics, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden;3. Department of Animal Environment and Health, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden;4. Department of Animal Breeding and Genetics, Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden |
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| Abstract: | Perching is important for broiler welfare, however, hampered by body weight. In a mixed flock, resting behaviour and location were compared between three broiler hybrids (Rowan Ranger, Hubbard CYJA57 &; Ross 308; n?=?100/hybrid), differing in growth. Rearing was in a large littered pen (1.84 birds/m2), with perches. Behaviour and position was observed in focal birds on daytime and as group scans on daytime (days 11, 45, 61 and 80) and night-time (days 63, 70 and 77). Birds were slaughtered at 84 days and accumulated mortality in fast-growing birds was 20% and 2% in slow-growing. Resting frequency did not differ though fast-growing broilers perched less and lower, at night (P?P?P?
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| Keywords: | Perching hybrids behaviour growth rate rest |
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