Reproductive Manipulation of the Mare (2) Flashcards
what are the main uses of oxytocin?
induces labor, treats retained placenta, acts on uterine smooth muscle
what do dopamine antagonists act on?
suppress prolactin and block endogenous dopamine
common drugs that are dopamine antagonists?
domperidone
uses of dopamine antagonists? (know 2)
treat fescue toxicosis, agalactia, induce lactation, induce follicular development
where is the site of fertilization?
ampullary-isthmic junction
how long are sperm alive in the tract? egg?
sperm: 2-3 days
egg: 6 hours
what is one of the most important causes of early embryonic loss?
post-breeding endometritis
the egg hangs out in the oviduct for ___ days? then moves where?
6 days; migrates around the uterus
what happens if the embryo doesn’t move around the uterus enough?
body doesn’t recognize pregnancy and the CL lyses it
___ day embryonic vesicle attachment?
about 17 days
first pregnancy check days and what happens?
14-18 days, pregnancy check and check for twins
second pregnancy check days and happenings?
25-30 days, evaluate normal embryo development, check HR, and recheck for twins if any
third pregnancy check days and happenings?
40-60 days; evaluate normal fetal development
fourth pregnancy check days and happenings?
fall check, confirm the foal is still there
when can the fetal sex be determined?
55-90 days
