Fig. 4. (A) Relationships between protein available at weaning for metabolism and average rate of mass loss (solid squares, solid line) and rate of protein loss (open squares, broken line). (B) Relationship between energy available for metabolism at weaning and daily energy use (open squares, broken line) and daily fat loss (triangles, solid line). (C) Relationship between % contribution of fat to energy use and % fat content at weaning in Control and Low animals.