chemicals which the animals smell chemicals produced in one organ and transported in the blood to effect another part of the body chemicals found only in the brain chemicals which are found only in cycling mares.
Mares respond to increasing daylight by resuming ovarian activity. Daylight can be supplemented with artificial lighting. A transitional period of erratic cycles occurs in both the early spring and late fall. None of the above.
Estrogen from the follicle is important in estrus behavior. Melatonin is responsible for estrus behavior Progesterone from the follicle is responsible for diestrus behavior. LH and FSH have are directly involved in reproductive behavior.
ovulation changes in the response to light regression of the CL growth of the follicle
Use of hormones to regulate the cycle Using progesterone to synchronize ovulation. LH-like compound (hCG) to induce ovulation. oxytocin to induce parturition.
