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Abstract
Twenty Friesian dairy cows were used in an experimental trial to study the effects of extruded full-fat soybean and dietary supplementation, at the level authorized by Consorzio of flaxseed Parmigiano-Reggiano cheese (CPRC) feeding guidelines (1.0 and 0.4 kg/cow/day), on milk production and fatty acid composition. Diet was typically based on alfalfa and mixed hays and cereals. Compared with the concentrations before trial start, CLA and DHA were significantly increased by dietary treatment. These results confirm that the inclusion of extruded full-fat soybean and flaxseed, in the amount authorized by CPRC rules, in the diet of dairy cows is a possible strategy to enhance milk fat composition.
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