BAP dairy hormones

GnRH

Made in the hypothalamus, targets the anterior pituitary, stimulates release of fsh and lh

LH( lutenizing hormone)

From anterior pituitary, targets follicle/ovary, causes ovulation and formation of the CL

FSH( follicle stimulating hormone)

From the anterior pituitary, targets the ovarian follicles, stimulate follicle growth and estrogen production

Estradiol

Starts in the follicle/ovary, targets the hypothalamus. Causes estrus(brings cow into heat)

Progesterone

Made in the CL , targets the uterus , maintains pregnancy because it blocks GnRH

PGF2a (prostaglandin f2 alpha)

Comes from uterus, targets the CL, causes the cl the regress

Inhibin

Comes from ovarian follicle, targets the anterior pituitary, inhibits fsh release

Oxytocin

From the posterior pituitary and cl, targets the uterus and mammary gland, causes uterine contractions and milk let down

Relaxin

Comes from placenta and ovary, targets the cervix and pelvic ligaments, relaxes birth canal before partition

GnRH injection

Targets pituitary/ ovary, causes lh release and ovulation

PGF2a injection

Targets the cl, destroys cl and decreases progesterone

CIDR (insert device)

Targets reproductive system, mimics cl, prevents estrus and ovulation until removal

Estradiol injection

Targets reproductive system, synchronized follicular waves and induces estrus

Placental lactogen

From the placenta, supports fetal growth and mammary development,

INFT

From the embryo, maternal recognition of pregnancy in cows

Reproductive system

Viulva,vagina,cervix,ovary, oviduct, uterus, uterine horns

Lactogenic complex

Glucocorticoid, PRL

Required for mammogenesis

P4 and E2

Required for calving

Oxytocin and OTR (oxytocin release)