Birds Feed Linseid Oil
Crespo and Esteve (2001) showed that birds fed tallow presented higher values of SFA, mainly mirystic, palmitic, and stearic acids (C14:0, C16:0, and C18:0), than those fed olive, sunflower, or linseed oil. Birds fed with olive oil had a substitution of these SFA (mainly stearic acid) by oleic acid. Thus, birds fed olive oil presented the lowest values of stearic acid in all tissues. Birds fed sunflower oil showed higher values of linoleic acid (C18:2 n6) than those fed tallow, olive, or linseed oil, and compared with birds fed tallow, linoleic acid replaced myristic, palmitic, and oleic acids in all tissues, and stearic acid in thigh muscle. Birds fed linseed oil presented the highest value of linolenic acid (C18:3 n3) in all tissues. This fatty acid also replaced myristic, palmitic, and oleic acids in birds fed linseed oil compared with birds fed tallow, whereas stearic acid remained constant between these treatments in all tissues.
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The lowest values of n-6 fatty acids were found in thighs and breasts of birds fed linseed oil. Oleic acid was the predominant fatty acid in all tissues of birds fed tallow or olive oil, whereas in birds fed sunflower oil, linoleic acid was always the predominant fatty acid, and in those fed linseed oil, linolenic acid was the predominant fatty acid in
The lowest values of n-6 fatty acids were found in thighs and breasts of birds fed linseed oil. Oleic acid was the predominant fatty acid in all tissues of birds fed tallow or olive oil, whereas in birds fed sunflower oil, linoleic acid was always the predominant fatty acid, and in those fed linseed oil, linolenic acid was the predominant fatty acid in