Abstract: Agalactia and associated disease problems have been recognized as major causes of economic loss in animal breeding, especially in such areas as swine raising. Nevertheless its importance in other fields, such as the breeding of horses, cows, sheep and dogs may not be underestimated. The loss is primarily manifested as stunting and mortality of young animals during the postnatal period. It is clear that virtually all losses attributed to starvation and many of the losses attributed to trauma, diarrhea and weakness are closely linked to insufficient milk consumption during the immediate postpartum period.