Experiment 1 was designed to study the effect of protein levels in starter feeds on growth performance, digestive physiology and rumen development in weaned calves.
具体分以下两个部分：试验一开食料中粗蛋白质水平对犊牛生长、消化及瘤胃发育的影响。
Experiment 1 was designed to study the effect of protein levels in starter feeds on growth performance, digestive physiology and rumen development in weaned calves.
具体分以下两个部分：试验一开食料中粗蛋白质水平对犊牛生长、消化及瘤胃发育的影响。
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