Thirty-six steers of varying weight and degrees of fatness were used to study the relationship between carcass specific gravity and carcass composition, and to study the effect of bone proportionality upon this relationship. Specific gravity of the carcass was highly correlated with carcass water (0.94), protein (0.89), and fat (−.96) composition, and regression equations were in good agreement with previously published work. Bone proportionality within the range included in this study (11.7 to 18.6% separable bone) did not alter the relationship between carcass specific gravity and carcass composition.
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Preston et al. (1974) studied this question.