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Efficiencies of Conversion of Feed to Fiber of Angora Goats and Rambouillet Sheep¹

Texas A&M University, Agricultural Research Center, McGregor 76657

Abstract

THERE are many reports of the efficiency of conversion of feed to apparel fiber in Merino sheep (reviewed by Hamilton and Langlands, 1969) and in other sheep breeds (Daly and Carter, 1955; Langlands and Hamilton, 1969), but estimates for the Angora goat and Rambouillet sheep are lacking. Because of the importance of the Angora and Rambouillet to United States mohair and wool production, it is important to determine the relative efficiencies of conversion of feed to fiber of these two species. It is also of interest to compare these results with estimates for the Australian Merino (Dunlop, Dolling and Carpenter, 1966).

Sixteen animals consisting of four mature Angora does, four Angora kids, four mature Rambouillet ewes, and four Rambouillet ewe lambs were individually housed in metabolism cages for a period of 74 days. The two age groups were included due to the fact that age of the Angora goat has an important influence on the rate of fiber production (Shelton, 1961).

¹ Thanks are due to Dr. M. C. Calhoun for assistance in preparation of manuscript

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