estrous cycle of livestock
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22 Terms
period of estrus
sexual receptivity
being "in heat"/standing heat
willing to mate and capable of conceiving
estrous cycle
period between ovulations (egg release)
length of cycle - cattle
21 days
length of cycle - sheep
17 days
length of cycle - goat
19-23 days
length of cycle - swine
21 days
length of cycle - horse
21 days
length of estrus - cattle
6-24 hours (shorter in dairy vs beef)
length of estrus - sheep
24-36 hours
length of estrus - goat
24-48 hours
length of estrus - swine
40-60 hours
length of estrus - horse
5-7 days
when to breed - cattle
12 hour rule
when to breed - sheep
18-20 hours post onset of estrus
when to breed - goat
12-24 hours post onset of estrus
when to breed - swine
gilts: 12 hours after onset of standing heat
sows: 24 hours after
when to breed - horse
24-36 hours before ovulation or the day of ovulation
cycle type - cattle
polyestrous
cycle type - sheep
seasonally polyestrous (short)
cycle type - goat
seasonally polestrous (short)
cycle type - swine
polyestrous
cycle type - horses
seasonally polestrous (long)