An understanding of the processes that change the shape and composition of farm animals is fundamental to all aspects of production. Updated to include new chapters on avian growth and global warming, and citing new research throughout, this comprehensive textbook provides key information on how animals grow and change in shape and composition, and the factors that affect these processes. Presented in a larger format with new photographs and focus boxes, this third edition continues to fill the important role of helping to understand how the basics of growth must be thoroughly understood if farm animals are to be used efficiently and humanely in producing food for mankind.