Influence of Amount and Degree of Saturation of Dietary Fat on Yield and Quality of Milk

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Abstract
Four rumen-fistulated ~olstein cows were used in a Latin square design ex- periment over 20 weeks to compare effects of a standard diet, basal low-fat, basal + hydrogenated tallow, and basal + soy- bean oil diets on voluntary feed intake. rumen fermentation, and on yield and composition of milk. In a second trial, six Holstein cows fed similar basal and fat supplemented diets were used in a 3 × 6 Latin rectangle to compare milk produc- tion and composition under a system of restricted feed intake.
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