Fig. 4From: Progress towards reduced-crude protein diets for broiler chickens and sustainable chicken-meat productionQuadratic relationship (r = 0.907; P = 0.013) between analysed dietary starch:protein ratios and FCR from 7 to 35 days post-hatch where y = 1.788–0.361×ratio + 0.122×ratio2. Adapted from Chrystal et al. [12, 13]Back to article page