One side from each carcass was dissected into knifeseparable
components of subcutaneous fat, intermuscular
fat, internal fat, lean, and bone to determine physical
composition. Analysis followed a 2 × 2 factorial arrangement
with breed-type (Boer × Spanish and Spanish)
and feeding regimen (feedlot and range) as the
main effects. All data were analyzed with PROC GLM
(SAS, 1991). Analyses were conducted with a model
that included breed-type (Boer × Spanish and Spanish)
and feeding regimen (feedlot and range) as main effects
and the two-way interaction between them. Least
squares means were estimated, and mean separation
was performed using pairwise t-tests (α = .05). A second
model was used for carcass yield traits, which also included
live weight as a covariate in order to compare
carcass traits adjusted for differences in live weight
One side from each carcass was dissected into knifeseparablecomponents of subcutaneous fat, intermuscularfat, internal fat, lean, and bone to determine physicalcomposition. Analysis followed a 2 × 2 factorial arrangementwith breed-type (Boer × Spanish and Spanish)and feeding regimen (feedlot and range) as themain effects. All data were analyzed with PROC GLM(SAS, 1991). Analyses were conducted with a modelthat included breed-type (Boer × Spanish and Spanish)and feeding regimen (feedlot and range) as main effectsand the two-way interaction between them. Leastsquares means were estimated, and mean separationwas performed using pairwise t-tests (α = .05). A secondmodel was used for carcass yield traits, which also includedlive weight as a covariate in order to comparecarcass traits adjusted for differences in live weight
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