Effect of dietary soybean oil addition on the odd-numbered and branched-chain fatty acids in rabbit meat.
The effect of dietary soybean oil (SO) inclusion (20g/kg) on the odd-numbered (ONFA) and branched-chain (BCFA) fatty acids (FA) of two muscles, differing in fatness (Longissimus lumborum and Biceps femoris), was studied in 24 New ZealandxCalifornian 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 oilxmuscle 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.
Papadomichelakis
George
G
Department of Nutritional Physiology and Feeding, Faculty of Animal Science and Aquaculture, Agricultural University of Athens, 75 Iera Odos Str, 118 55, Athens, Greece. gpapad@aua.gr
Karagiannidou
Areti
A
Anastasopoulos
Vasilios
V
Fegeros
Konstantinos
K
D000821:Animal Feed; D000818:Animals; D001823:Body Composition; D004041:Dietary Fats / Q000494:pharmacology*; D005227:Fatty Acids / Q000032:analysis*; D008297:Male; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000737:chemistry*; D011817:Rabbits; D013024:Soybean Oil / Q000494:pharmacology*; D013025:Glycine max / Q000737:chemistry
D004041:Dietary Fats; D005227:Fatty Acids; D013024:Soybean Oil