The methodology provides users with draft recommendations for setting up appropriate rearing management of calves housed in small groups during the milk feeding period. The management of calf rearing in small groups, together with the timely intake of an adequate amount of high-quality colostrum, appropriate colostrum management, adequate levels of breeding environment, sanitation and hygiene, including a sufficient layer of dry bedding and an adequate level of nutrition, is of fundamental importance for maintaining good health, achieving adequate growth and welfare calves during rearing in the milk feeding period.