کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5792724 1109642 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of season on contractile and metabolic properties of desert camel muscle (Camelus dromedarius)
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Effect of season on contractile and metabolic properties of desert camel muscle (Camelus dromedarius)
چکیده انگلیسی

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.

► Gives new information about the contractile and metabolic properties of camel muscle. ► Shows how muscle fibers and enzyme activities changed during seasons. ► Indicates significant influence of seasons on chemical composition of camel muscle.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 90, Issue 1, January 2012, Pages 139-144
نویسندگان
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