Bargai, U., Ben-Asher, A. and Nir, I.
An experiment was carried out to study the relationship between calcium and phosphorus retention and bone density of the third and fourth metacarpal bones in the young calf over a wide range of Ca and P retention. Bone density was evaluated by spectrophotometry of radiographs. At the lateral cortex, bone density was found to be positively correlated to calcium retention (P < 0.05), phosphorus retention (P < 0.01) and calcium concentration in blood plasma (P < 0.05) ; at the medial cortex or dorsal longitudinal sulcus, it was correlated to calcium and phosphorus retention to a lesser extent. Radiographic spectrophotometry of the third and fourth metacarpal bones thus seems to be a prospective useful and non destructive method for evaluating bone mineralization in young calves.
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