کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5792258 1109632 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Meta-analysis of the comparison of the metabolic and contractile characteristics of two bovine muscles: Longissimus thoracis and semitendinosus
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Meta-analysis of the comparison of the metabolic and contractile characteristics of two bovine muscles: Longissimus thoracis and semitendinosus
چکیده انگلیسی

This study used the BIF-Beef data warehouse to determine whether semitendinosus (ST) was a muscle with a faster contraction speed and more glycolytic than longissimus thoracis (LT), regardless of the sex and breed of animals. With more than 500 animals from 7 breeds, we confirmed that LT was more oxidative than ST in males and females, but not in steers, and in all the breeds studied except Montbéliard. The LT had more slow oxidative (SO) and fewer fast oxido-glycolytic (FOG) and fast-glycolytic (FG) muscle fibres than the ST muscle, regardless of sex, in all breeds except Montbéliard and Holstein. SO proportion and the oxidative activity were negatively correlated to FG proportion and to the glycolytic activity. Similarly, FOG proportion was positively correlated to the glycolytic activity and negatively to FG proportion. However, these relationships are not consistent across sexes and breeds. In conclusion, differences in muscle types may be affected by sex or breed but to a moderate extent only.

► A meta-analysis was performed with a high number of muscle biochemical data from many experiments. ► In most cases, semitendinosus muscle was faster and more glycolytic than longissimus muscle. ► Within muscle, contractile and metabolic characteristics of fibres depend on breed and sex.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 91, Issue 4, August 2012, Pages 423-429
نویسندگان
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