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Effect of season on contractile and metabolic properties of desert camel muscle (Camelus dromedarius)

Abdelhadi Omer M.A., Babiker Salih A., Picard B., Jurie C., Jailler R., Hocquette J.F., Faye Bernard. 2012. Effect of season on contractile and metabolic properties of desert camel muscle (Camelus dromedarius). Meat Science, 90 (1) : pp. 139-144.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY

Abstract : Thirty fattened one humped desert camels were used to examine the effect of season on contractile and metabolic properties of Longissimus thoracis (LT) muscle. Ten camels were slaughtered according to seasons of the year (winter, summer and autumn). Season significantly influenced muscle chemical composition, ultimate pH (pHu) and color. Activities of metabolic enzymes were higher during autumn season compared to summer and winter for phosphofructokinase (+ 64% compared to both seasons) and for isocitrate dehydrogenase (+ 35% and + 145% in autumn vs. summer and winter, respectively). Quantification of muscle myosin heavy chain isoforms by SDS-PAGE electrophoresis showed only presence of type I and type IIa MyHC in camel muscle and indicated high proportion in winter for type I and in autumn for type IIa with respect to other seasons. Several correlations between different MyHC proportions and enzyme activities were reported. These findings indicated that muscle characteristics in camels are influenced by season. (Résumé d'auteur)

Mots-clés Agrovoc : Dromadaire, Viande de chameau, Métabolisme, Variation saisonnière

Mots-clés géographiques Agrovoc : Arabie Saoudite

Mots-clés complémentaires : Camelus dromedarius

Classification Agris : Q04 - Food composition
L52 - Animal physiology - Growth and development

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

  • Abdelhadi Omer M.A., University of Khartoum (SDN)
  • Babiker Salih A., University of Khartoum (SDN)
  • Picard B., INRA (FRA)
  • Jurie C., INRA (FRA)
  • Jailler R., INRA (FRA)
  • Hocquette J.F., INRA (FRA)
  • Faye Bernard, CIRAD-ES-UMR SELMET (SAU)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/562653/)

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