Dietary Protein to Metabolizable Energy Ratios on Feed Efficiency and Structural Growth of Prepubertal Holstein Heifers

Sixty Holstein heifers, 124.5 +/- 1.1 d of age and 124.9 +/- 2.5 kg of BW, were used to evaluate the influence of dietary crude protein to metabolizable energy ratio (CP:ME) on feed efficiency, structural growth, and body condition score. Treatment rations containing a specific CP:ME ratio were assi...

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Veröffentlicht in:	Journal of dairy science 2003-01, Vol.86 (1), p.268-274
Hauptverfasser:	Gabler, M. T, Heinrichs, A. J
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal Nutritional Physiological Phenomena Animal productions Animals Biological and medical sciences Blood Urea Nitrogen Body Constitution Body Height Cattle - growth & development Dietary Proteins - administration & dosage Dietary Proteins - metabolism Dose-Response Relationship, Drug Energy Intake Energy Metabolism - physiology Female Fundamental and applied biological sciences. Psychology Random Allocation Terrestrial animal productions Vertebrates Weight Gain - drug effects
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