Developmental growth and body weight loss of cattle. III. Dissected components of the commercially dressed carcass, following anatomical boundaries

摘要: This paper describes part of an investigation the effects developmental growth and body weight loss on carcass composition Angus steers. A method anatomical dissection was used one half (the right side) each to find weights component. The results are compared with those obtained from a dissecting butcher's joints other (left) carcass. Two groups steers were in this experiment: group A, which grew continuously, B, like then subjected period before slaughter. Corresponding animals both killed at same weights. Statistical analysis by analyses covariance components converted logarithms. As increased, proportions muscle, bone, fascia tendons decreased, while fat increased. result similar that obtained. previously joint dissection, but changes differed degree. Distribution muscle bone changed significantly as total these known only so far they came either hindquarter or forequarter; no found their distribution Comparison B showed led significant increase proportion slight decrease muscle. Body had differential effect kidney channel carcass, depending killed. subcutaneous intermuscular carcasses did not vary weight. These there differences magnitude. In particular, between more pronounced where it statistically significant. Also affected differentially treatment different killing weights; however, evidence dissection. ascribed accurate separation tissues Distributions tendon Unlike show due treatment; units for assessing distributions.