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Intramuscular fatty acid profile of longissimus dorsi and semitendinosus muscle from Kundi steers fed on pasture with cottonseed cake supplement
Author(s) -
Talpur Farah N.,
Bhanger Muhammad I.,
Khuhawar Muhammad Y.
Publication year - 2007
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.2006.01451.x
Subject(s) - loin , longissimus dorsi , intramuscular fat , semitendinosus muscle , conjugated linoleic acid , chemistry , polyunsaturated fatty acid , zoology , cottonseed , longissimus , pasture , fatty acid , anatomy , linoleic acid , biology , food science , biochemistry , agronomy
Summary The present study was accomplished to evaluate the intramuscular fatty acid (FA) composition of different muscles taken from Kundi steers ( n = 15), which were approximately 24 months old, fed on a cottonseed cake supplement, and were made to graze on alfalfa pasture for 95 days prior to slaughter. The samples were taken from longissimus dorsi region (loin and ribeye portion) and distal region of semitendinosus muscle for intramuscular FA analysis. Saturated FA, comprising 49.48–52.09% of total FA composition, in all the muscles were studied. Ribeye portion of longissimus dorsi muscle contain relatively higher ( P > 0.05) amount of trans FA (3.37%) as compared with loin portion of longissimus dorsi muscle (3.1%) and distal region of semitendinosus muscle (2.84%). The sum of monounsaturated FA in all the muscles studied was estimated in the range of 32.21–34.64%, while polyunsaturated FA contribute 11.39–12.39% of total FA. The mean conjugated linoleic acid was found to be 0.28, 0.35 and 0.41 in ribeye and loin portion of longissimus dorsi muscle and distal region of semitendinosus muscle, respectively.