VARYING AMOUNTS OF RUMEN-INERT FAT FOR HIGH PRODUCING GOATS IN EARLY LACTATION

This study determined the responses of early lactating goats fed varyi ng amounts of rumen-inert fat. Forty multiparous high producing Alpine does in the first 2 wk of lactation were assigned randomly to four is onitrogenous dietary treatments containing 0, 3, 6, and 9% added fat. The study consisted of a 2-wk preliminary and a 10-wk experimental per iod. Feed intake, blood glucose, and rumen pH were not affected by die tary treatments. Body weight gain and milk production decreased linear ly as dietary fat increased. Peak production was higher with 3% added fat than with 6 and 9%. The SCC, total solids, and lactose contents of milk were unaffected by fat percentage. Milk fat percentage increased linearly as fat percentage increased; milk protein content was highes t at 6% dietary fat addition. The rumen-inert fat tended to increase l ong-chain fatty acids and to reduce short-chain fatty acids of milk. T hese findings suggest that fat supplementation at 3% of the total diet can increase fat percentage in milk from high producing dairy goats i n early lactation.