Lab exam 2 Flashcards
What is the usual result of equine twinning?
abortion of both foals
With live cover breeding it is safest to
hobble the mare to protect the stallion
Fertilization occurs in the
ampulla
In the mare, ovulation occurs at day 0 in the cycle which is typically 1 day before the end of estrus
true
A mare is seen rubbing her tail on the fence, winking her vulva and urinating small amounts, what stage of estrous is she in and what is the dominant hormone
Estrus, estrogen
ECG is produced by the ____ to stimulate formation of the secondary CL
fetal tissue endometrial cups
Higher conception rates are the main reason for breeding a mare during her foal heat
False
Bubbles that dont dissolve in rumen fluid can be an indication of
frothy bloat
Ruminal pH of 8.8 may indicate
saliva contamination and prolonged ruminal stasis
Normal rumen fluid should have motile protozoa present
True
What is the purpose of anaerobic bacterial reduction test and what is the normal time in cattle
Function of bacteria 2-6 minutes
Pregnancy will occur if
fetus excretes antiluteolytic substance that prevents uterine release of prostaglandins
Proestrus in the cow
CL regressing, progesterone decreasing, estrogen increasing
Which of the following is a primary sign of heat in cows
allowing others to mount
The purpose for dehorning
decrease injury to themselves and other cattle