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Effect of Diet Composition on Performance of Lambs Reared from Birth on Milk Replacer¹

U.S. Department of Agriculture, Clay Center, Nebraska 68933

Abstract

One hundred and sixty-eight lambs from eight breeds born in the spring of 1970, and 87 Finnsheep-sired lambs born in the fall of 1970, were used in two trials to determine the optimum nutrient levels in lamb milk replacer diets. In the first trial, increasing the fat level in the dry milk replacer from 20% to 30% and reducing the lactose level from 42% to 32% improved rate and efficiency of lamb gain and reduced lamb death losses. Reducing the percent lactose in the 30% fat milk replacer in the second trial to 27% lactose resulted in further improvements in rate and efficiency of lamb growth and reduction in lamb death losses.

¹ The cooperation of Dr. Laverne Schugel, Land-O'-Lakes, Inc., Minneapolis, Minnesota, in the planning of these studies and the preparation of experimental diets is gratefully acknowledged.

² U.S. Meat Animal Research Center, Animal Science Research Division, A.R.S.