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Growth and carcass traits and sire effects on growth and carcass traits in purebred beefmaster cattle
analyzed on the various growth and carcass traits submitted.
attributed to the uniform selection for growth traits
below the overall mean for these two traits. Significant
bulls was created and analyzed using Harvey's Mixed Model
commercially fed and slaughtered between 1991 and 1995 were
consisting of information on 329 steers sired by 29 different
data on 602 purebred Beefinaster steers, bulls and heifers
day weight, marbling score and quality grade. Lack of
effects of sire, sex, slaughter age and slaughter group were
grade and yield basis. To be successful, a ranch must know
knowledge producers can maintain or alter their breeding
Least-Squares and Maximum Likelihood Computer Program. The
lower estimates of heritabilities than expected may be
Many beef cattle producers are becoming interested in
marbling score and quality grade may be difficult without
production chain and than selling them to the packer on a
program as needed to achieve the goal of producing high
program might be beneficial. Parentage, growth and carcass
quality cattle. The McAllen Ranch, located in Raymondville,
quality of their cattle and where changes to their breeding
retaining ownership of their cattle through the entire
sacrificing lean yield in the near future. Six bulls with
significant sire effects for many of the traits, and the
sire effects were identified in birth weight, adjusted 205
standards, both the steers and the bulls performed well in
steers with marbling scores and quality grades which were
submitted for analysis. From this data, a final set
Texas is one operation that is trying to identify the actual
the areas of hot carcass weight, Longissimus muscle area and
the highest progeny means for fat thickness generally sired
thickness, marbling score and quality grade. Improvement of
what quality of cattle they are producing. With this
When compared to two sets of proposed sets of industry
yield grade. However, both were weaker in the areas of fat
Issued also on microfiche from Lange Micrographics.
Includes bibliographical references: pages 52-54.