1. Mares are seasonally estrus, coming into heat in the early spring. A "normal" estrous cycle is:

4-8 days
21 days
36 hours
depends on the temperature

2. Good estrus detection is important because

mares ovulate the day after estrus ends.
stallions are not good at detecting mares in estrus.
poor estrus detection is a major cause of poor reproduction.

3. The main signs of estrus are:

kicking and running away
winking and urinating
ears back and running away
kicking and vocalization

5. The method of teasing used on a farm should depend on (select all that apply):

the facilities available.
the number of mares.
the type of mares being handled (nursing, show, maiden)
size of pastures.