© Agronomía Mesoamericana, 2014
Jorge Alberto Elizondo-Salazar
Universidad de Costa Rica, Estación Experimental Alfredo Volio Mata
Nutrient requirements of dairy cattle.
Agronomía Mesoamericana: Vol. 13, Issue 1 (January-June)
nutrient requirements of dairy cattle (TDN, DE, ME, NEL,
CP, Ca, P, Vitamin A and Vitamin D) on different
physiological stages: maintenance, pregnancy and milk
production based on NRC nutrient requirements tables. The
R-square was calculated for each equation to establish the
degree of adjustment.