Evaluation of the National Research Council (1996) dry matter intake prediction equations and relationships between intake and performance by feedlot cattle

Intake prediction equations of NRC based on initial BW and dietary NEm concentration were evaluated with a commercial feedlot database consisting of 3,363 pen means collected from 3 feedlots over a 4-yr period. The DMI predicted by NRC equations had significant (P < 0.01) mean and linear biases a...

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Veröffentlicht in:	Journal of animal science 2009-03, Vol.87 (3), p.1138-1146
Hauptverfasser:	McMeniman, J.P, Defoor, P.J, Galyean, M.L
Format:	Artikel
Sprache:	eng
Schlagworte:	accuracy Algorithms Animal Husbandry - methods Animal Husbandry - standards Animal productions Animals beef cattle Biological and medical sciences body weight Body Weight - physiology Cattle - physiology cattle feeding data analysis dry matter intake Eating - physiology energy intake energy requirements energy retention equations feed conversion feedlots Female finishing Fundamental and applied biological sciences. Psychology liveweight gain Male mathematical models medicated feeds monensin National Academy of Sciences (U.S.) precision prediction Regression Analysis Terrestrial animal productions United States Vertebrates
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