Heart and liver fatty acid composition and vitamin E content in miniature swie fed diets containing corn and menhaden oils |
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Affiliation: | 1. Programa de Ofidismo y Escorpionismo, Universidad de Antioquia, Medellín, Colombia;2. Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia;3. Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica |
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Abstract: | Female miniature swine, 4–11 yr, were fed 15% fat diets containing n-3 and/or n-6 polyunsaturated fat for 6 months, at 1.95 g fat/kg body weight. Liver lipids from menhaden oil-fed minipigs were elevated in the n-3 fatty acids: 20:5, 22:5 and 22:6, but heart lipids only in 20:5 and 22:6. Liver cell plasma membrane was elevated in 20:5, 22:5 and 22:6 and lowered in the n-6 acids 18:2 and 20:4 in menhaden oil-fed animals, to a greater extent than in the total tissue lipids. Liver α-tocopherol tended to decrease upon feedin menhaden oil, but heart α-tocopherol concentrations were not affected. |
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