Abstract
Two decades of Indian research on protein and energy requirements of goats were reviewed. Protein requirements for minimum maintenance derived from endogenous urinary and metaboic fecal nitrogen excretion in nitrogen-free and low-nitrogen metabolism studies were 1.23 to 1.61g digestible crude protein (kg body weight).75. Based on balance studies at maintenance, requirements were 3.13 to 3.83g digestible crude protein/(kg body weight).75. The coefficient to predict utilizable protein from body weight for goats was .89.From digestibility trials, protein requirements for growth and maintenance were 4.52g and 5.55g digestible crude protein/(kg body weight).75, respectively, for pregnancy and maintenance. Protein requirements for lactation were 4.95 digestible crude protein/(kg body weight).75 and for 1kg 4% fat-corrected milk 46.56g digestible crude protein. Energy requirements for maintenance were 125 to 163kcal digestible energy/(kg body weight).75; for growth and maintenance 232.83kcal; for pregnancy and maintenance 221.79kcal; for lactation 198kcal; and for 1kg 4% fat-corrected milk 1520kcal.
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