J. Anim Sci.
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J. Anim Sci. 1977. 45:59-66.
© 1977 American Society of Animal Science
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Breed, Line and Sex Effects of Carcass Characteristics of Young Pigs

R. J. Davey and B. Bereskin1

U.S. Department of Agriculture,2, Belstville, MD 20705

Abstract

Data on carcass measurements and chemical composition of young pigs approximately 9 weeks of age are presented. Pigs used in the study were from Duroc and Yorkshire breeds and included representatives of lines within each breed selected for high or low fatness. In addition, some pigs from crosses within the selected lines were studied as well as pigs from Duroc and Yorkshire herds considered representative of the present-day swine population. Dressing percentage, carcass length, backfat thickness, loin eye area and carcass chemical composition differed significantly among breed groups. Although pigs were slaughtered at about 62 days of age, slaughter weights differed among lines and individuals and significantly influenced many of the traits measured.

Footnotes

1 The authors wish to express their appreciation for the technical assistance of J. Faltynski, H. Young, J. Phelps and N. Albrecht.

2 Nutrition Institute, A.R.S., Agriculture Research Center.






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Copyright © 1977 by the American Society of Animal Science.