Fig. 1From: Net protein and metabolizable protein requirements for maintenance and growth of early-weaned Dorper crossbred male lambsRelationship between N retention (NR) and N intake (NI) of Dorper × thin-tailed Han crossbred male lambs from 20 to 35 kg of BW. NR, g/kg SBW0.75 = −0.303 (±0.046) + [0.422 (±0.040) × NI, g/kg of SBW0.75], R 2 = 0.89, RMSE = 0.054, n = 28Back to article page