specifically considered were the possibilities that : high blood flow to the mammary gland and perturbations of that flow may disrupt vascular regulatory mechanisms in the reproductive tract , metabolism of gonadal and adrenal hormones by mammary tissue may disrupt endocrine controls essential for reproduction , suckling or milking-induced release of prolactin and oxytocin may inhibit ovarian or pituitary function and effects of social interactions associated with lactation and suckling may delay resumption of estrous cycles .
C0035150
reproduction
C0033371
prolactin