Pre-slaughter stress and horn status influence physiology and meat quality of young bulls
| Autor: | J.-L. Oberson, Jessika Messadene-Chelali, H.D. Hess, Anna-Maria Reiche, F. Dohme-Meier, E.M.C. Terlouw, Pierre-Alain Dufey, P. Silacci |
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| Přispěvatelé: | Agroscope, Animal Physiology, Institute of Agricultural sciences, ETH, Proconseil SARL, Partenaires INRAE, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Foundation Sur-la-Croix, Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
Sarcomeres animal structures animal diseases [SDV]Life Sciences [q-bio] Pre slaughter Biology Beef cattle animal welfare meat quality [SHS]Humanities and Social Sciences 0404 agricultural biotechnology Animal science beef cattle Heart Rate Stress Physiological Heart rate medicine Animals [INFO]Computer Science [cs] Animal Husbandry 10. No inequality Horns Horn (anatomy) urogenital system 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences Emotional stress Hydrogen-Ion Concentration 040401 food science 040201 dairy & animal science Stress hormone Tenderness Red Meat disbudding pre-slaughter stress Cattle medicine.symptom Abattoirs Food Science |
| Zdroj: | Meat Science Meat Science, Elsevier, 2019, ⟨10.1016/j.meatsci.2019.107892⟩ |
| ISSN: | 0309-1740 |
| Popis: | International audience; The study used 81 young bulls, half of which were disbudded at 7 weeks of age. The effects of horn status during rearing and of acute physical and emotional stress just before slaughter on the physiological status at slaughter and subsequent meat quality were investigated. Bulls were reared in groups containing i) only bulls with horns, ii) only bulls without horns, or iii) mixed (half with, and half without horns). Bulls of each rearing condition were assigned to one of two slaughter conditions: with limited (LS) or with supplementary stress (SS). LS resulted in lower heart rates, stress hormone concentrations and carcass temperature, whereas SS resulted in faster post mortem pH decline and lower juiciness. Horned bulls from unmixed rearing groups had lower early pm temperature, shorter sarcomeres, and lower tenderness compared to disbudded bulls. Correlations and regression analysis revealed relationships between physiological indicators, mainly heart rate before slaughter, and meat quality, including water-holding capacity and indicators of proteolysis. |
| Databáze: | OpenAIRE |
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