ARTIFICIAL INDUCTION OF LACTATION IN DAIRY CATTLE: A REVIEW

Several researches used the combination of ovarian hormones estrogen and progesterone, by itself or in combination, to promote the development of the mammary gland and induction of lactation in cattle. However, only recently with development of new technologies, such as the culture of mammary cells in vitro, molecular mechanisms of the hormones in specific genes was possible to know the functioning of animal physiology and define the function of each hormone in the control of mamogenesis, lactogenesis and galactopoesis. The use of new drugs many of these techniques have reached up to 100% success rate in induction and produced good quantities of milk at a low cost of induction, being a alternative easy application and profitable for the dairy farms. In this sense, the aim of this study was to review the physiology of lactation, as well to evaluate the protocols described in literatur