Feed particle selection and nutrient intake altered by pecking stone consumption and beak length in free-range laying hens.
Environmental enrichment
Feeding behaviour
Nutrition
Poultry
Welfare
Journal
Animal nutrition (Zhongguo xu mu shou yi xue hui)
ISSN: 2405-6383
Titre abrégé: Anim Nutr
Pays: China
ID NLM: 101717655
Informations de publication
Date de publication:
Jun 2019
Jun 2019
Historique:
received:
19
03
2018
revised:
25
04
2018
accepted:
05
05
2018
entrez:
14
6
2019
pubmed:
14
6
2019
medline:
14
6
2019
Statut:
ppublish
Résumé
The present study investigated the effects of pecking stones on feeding behaviour of hens from 16 to 46 weeks of age. Eighteen flocks of Hy-Line Brown hens were housed in 2 commercial free-range housing systems. Farm A housed 10 flocks of beak trimmed (infrared beak treatment) hens in fixed sheds. Farm B housed 8 flocks of hens with intact beaks in mobile sheds. On each farm, flocks were equally assigned to control groups (no access to pecking stones) and treatment groups (access to pecking stones). Data were evaluated every 10 weeks. At each time point, 10 hens per flock were housed in individual pens, and each hen was provided with 250 g of mash diet and
Identifiants
pubmed: 31193914
doi: 10.1016/j.aninu.2018.05.003
pii: S2405-6545(18)30085-4
pmc: PMC6544746
doi:
Types de publication
Journal Article
Langues
eng
Pagination
140-147Références
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