Wooden breast myopathy links with poorer gait in broiler chickens
| Autor: | Anna Valros, Marianna Norring, Eero Puolanne, H.-K. Sihvo, Jarmo Valaja, K. Immonen |
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| Přispěvatelé: | Production Animal Medicine, Research Centre for Animal Welfare, Laura Hänninen / Principal Investigator, Department of Agricultural Sciences, Animal Science Research, Department of Food and Nutrition, Helsinki One Health (HOH) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lameness
IMPACT 040301 veterinary sciences Gallus gallus 413 Veterinary science SF1-1100 Breast muscle animal welfare 0403 veterinary science MEAT QUALITY Animal science Age groups PECTORALIS MAJOR MUSCLE medicine Myopathy Leg weakness business.industry activity poultry Pectoralis major muscle 0402 animal and dairy science Broiler GROWTH-RATE 04 agricultural and veterinary sciences PERFORMANCE 040201 dairy & animal science Gait LEG WEAKNESS Animal culture Lameness Animal Science and Zoology medicine.symptom MYODEGENERATION business human activities |
| Zdroj: | Animal, Vol 13, Iss 8, Pp 1690-1695 (2019) |
| ISSN: | 1751-7311 |
| Popis: | Wooden breast myopathy, a condition where broiler breast muscles show a hardened consistency post-mortem, has been described recently. However, it is not known how wooden breast myopathy affects the bird activity or welfare. Altogether, over 340 birds of five commonly used commercial hybrids were housed in 25 pens, and sample birds killed at ages of 22, 32, 36, 39 and 43 days. Their breast muscle condition was assessed post-mortem by palpation. The birds were gait scored and their latency to lie was measured before killing. For further behavior observations, one affected and healthy bird in 12 pens were followed on 5 days for 20 minutes using video recordings. The connection of myopathy to gait score and activity was analyzed with mixed models. A higher gait score of wooden-breast-affected birds than that of unaffected birds (2.9 +/- 0.1 v. 2.6 +/- 0.1, P |
| Databáze: | OpenAIRE |
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