Objectives were to estimate energy and protein requirements of dairy crossbred steers, as well as to evaluate equations previously described in the literature (HH46 and CS16) to predict the carcass and empty body chemical composition of crossbred dairy cattle.

中文翻译：

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营养要求和方程式评估，以预测奶牛杂交ste牛的化学身体成分。

目的是评估奶牛杂交ste牛的能量和蛋白质需求，并评估先前在文献（HH46和CS16）中描述的方程式，以预测杂交奶牛的car体和空体化学成分。