Fig. 1

Models and predicted values, based on the interaction between Ca and P (P < 0.01), for (a) final body weight (BW), (b) average daily gain (ADG), (c) average daily feed intake (ADFI), and (d) gain to feed ratio (G:F) at d 21 in pigs fed diets containing from 0.14% to 0.74% standardized total tract digestible (STTD) Ca and from 0.16% to 0.50% STTD of P