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Effect of the Use of Purebred Hampshire Rams on Character and Yield of Wool

Iowa Agricultural Experiment Station

Abstract

The use of purebred Hampshire rams on a flock of ewes of miscellaneous breeding makes a very interesting subject for study. By continually grading up with purebred Hampshire rams the character and yield of wool should be brought to a more uniform product, both as to character and weight of fleeces produced. The experiments from which this paper has been written are a result of such a grading up process.

Management of Flock

The Iowa Agricultural Experiment Station has for the last eight years been using Hampshire rams to head the experimental flock. These rams have always been of exceptionally good Hampshire type. For the last five years they have been bred by the college. The original ewes were of miscellaneous breeding, showing Merino, Southdown, Shropshire, Ryland, and Leicester blood. Upon this foundation Hampshire rams have been used continuously up to the present time. To-day the experimental flock theoretically carries 94.75 per cent of Hampshire blood.