Journal
MEAT SCIENCE
Volume 86, Issue 2, Pages 264-269Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2010.04.012
Keywords
Odd-numbered carbon fatty acids; Branched-chain fatty acids; Dietary soybean oil; Rabbit meat
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The effect of dietary soybean oil (SO) inclusion (20 g/kg) on the odd-numbered (ONFA) and branched-chain (BCFA) fatty acids (FA) of two muscles, differing in fatness (Longissimus lumborum and Biceps lemons), was studied in 24 New Zealand x Californian rabbits. The increased muscle fatness in Biceps femoris (P<0.001) was related to higher saturated (P<0.01) and monounsaturated (P<0.01) fatty acids. Intramuscular ONFA and BCFA contents were not affected, but their proportions were reduced (P<0.01 and P<0.001) by SO addition, suggesting a dilution effect of the dietary polyunsaturates accumulated in both muscles, except for 17:0i which decreased only in Longissimus lumborum due to significant (P<0.05) soybean oil x muscle interaction. The higher (P<0.05) BCFA contents and the FA profile in Biceps femoris were not affected by fatness, indicating an association with other muscle properties. The present study supplies new information on ONFA and BCFA in rabbit meat. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.
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