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Abstract
The phenomenon of compensatory growth in broiler chickens subjected to early life undernutrition is reviewed. Increased interest in this concept is attributed to problems associated with early life fast growth rate, especially in broilers fed ad libitum. These problems include high body fat deposition, and a high incidence of skeletal and metabolic disorders. Factors that influence compensatory growth in the broiler chicken include the nature, severity and duration of undernutrition, as well as the age at the commencement of undernutrition and the degree and pattern of realimentation. Many studies have reported improvement in feed efficiency during compensatory growth in restricted-refed broilers. Broiler chickens undergoing compensatory growth also exhibit greater than normal feed intake relative to body weight and some associated digestive adaptation. The use of this concept to address problems associated with early life fast growth rate requires more studies of the nutrition of the broiler chicken during the period of growth compensation.