J. Anim Sci.
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J. Anim Sci. 1972. 34:541-548.
© 1972 American Society of Animal Science
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Two- and Three-Way Crosses Estimating Combining Ability of Suffolk, Targhee and Shropshire Breeds of Sheep1

B. P. Bradley2, A. B. Chapman, A. L. Pope and C. O. Rydberg3, 4,

University of Wisconsin, Madison 53706

Abstract

Crossbreeding is a means of bringing together desirable characteristics of two or more breeds. In addition to the qualities of the breeds themselves there may be specific advantage in a certain cross. The performance of particular breeds and crosses relative to one another is therefore of interest.

There has been a considerable volume of work in evaluating various breeds of sire crossed with ewes of a single breed. Neville, Chapman and Pope (1958) compared the performance of four Down breeds (Suffolk, Hampshire, Oxford and Shropshire) crossed with white face Montana ewes. Bailey, Chapman and Pope (1961) reported the relative value of Columbia, Corriedale, Hampshire and Suffolk sires bred to grade Hampshire ewes.

The performance of crosses between several breeds of sire and dam has been reported by Sidwell, Everson and Terrill (1962, 1964) using Hampshires, Shropshires, Southdowns and Merinos and by Sidwell and Miller (1971) and Sidwell, Wilson and Hourihan (1971) using Hampshires, Suffolks, Targhees, Dorsets and Columbia-Southdales.

Footnotes

1 Published with approval of the Director of the Agricultural Experiment Station. Paper No. 1293 from the Genetics Laboratory and No. 548 from the Department of Meat and Animal Science.

2 Present address: Biological Sciences, University of Maryland, Baltimore County, Catonsville, Maryland 21228.

3 State Experiment Station, Spooner, Wisconsin.

4 The cooperation of the staff of the Meat Science Laboratory in the collection of carcass data is appreciated.






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