کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5792540 | 1109640 | 2012 | 8 صفحه PDF | دانلود رایگان |
Pelvic and Achilles suspension methods for beef carcasses were compared for four gender-age groups (24 month bulls, 34 month bulls, heifers, and cows) and five muscles [M. longissimus dorsi (LD), M. semimembranosus (SM), M. adductor (AD), M. psoas major (PM), and M. gluteus medius (GM)]. Pelvic suspension increased muscle and sarcomere lengths in the SM, LD, GM, and AD muscles. The following effects were significant (p < 0.05). Peak force was reduced by pelvic suspension in the LD and GM of bulls-24 and bulls-34, but not heifers and cows. Furthermore, peak forces decreased for the SM after pelvic suspension in bulls-24, bulls-34, and heifers. For the AD, the only decrease in peak force was for bulls-34. Water-holding capacity increased and purge in vacuum bags decreased for pelvic suspension of all muscles except the PM. Although the effects of pelvic suspension varied somewhat between gender-age groups and muscles, this method of hanging carcasses merits industrial consideration because it improves muscle yields, tenderness, and reduces variation within muscles.
⺠Comparison of pelvic & Achilles suspension for 4 sex-age groups & 5 muscles. ⺠WHC increased & purge decreased for pelvic suspension of all muscles except psoas. ⺠Pelvic suspension increased muscle & sarcomere lengths in all muscles but psoas. ⺠Pelvic suspension will improve yield & tenderness & reduce variation of tenderness.
Journal: Meat Science - Volume 90, Issue 3, March 2012, Pages 528-535