Factors affecting the polyunsaturated fatty acid content of the plasma lipids of sheep

E-ISSN： 1475-2662|22|4|681-688

ISSN： 0007-1145

Source： British Journal of Nutrition, Vol.22, Iss.4, 1968-12, pp. : 681-688

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Abstract

1. In Expt 1, four adult wether sheep were given diets of hay or dried grass in an alternating sequence of feeding treatments. Each treatment period lasted for 20 days and blood samples were taken from the sheep on the last day of each period. When the diet of hay (linoleic: linolenic acid ratio 1.40) was replaced by one of dried grass (linoleic: linolenic acid ratio 0.28), there was an increase in the concentration of linolenic acid and a decrease in the concentration of linoleic acid in the plasma cholesteryl esters and phospholipids. There was an increase in the concentration of stearic acid and a decrease in the concentration of palmitic acid in the plasma triglycerides. Dietary change did not affect the composition of the plasma unesterified fatty acids.