Estrous Cycles Flashcards
cow estrous cycle avg length
21 days
sow estrous cycle avg length
21 days
mare estrous cycle avg length
21 days
doe estrous cycle avg length
21 days
ewe estrous cycle avg length
16 days
llama estrous cycle avg length
10 days
queen estrous cycle avg length
17 days
bitch estrous cycle avg length
6 months
cow estrus avg duration
18 hours
sow estrus avg duration
2-3 days
mare estrus avg duration
6 days
doe estrus avg duration
36 hours
ewe estrus avg duration
36 hours
llama estrus avg duration
5 days
queen estrus avg duration
9 days
bitch estrus avg duration
9 days
cow ovulation
24-30 hours after onset
sow ovulation
~40 hours after onset
mare ovulation
1-2 days before end
doe ovulation
24 hours after onset
ewe ovulation
21-35 hours after onset
llama ovulation
induced
queen ovulation
induced
bitch ovulation
2-3 days post LH surge
polyestrus species
cow, sow, llama
seasonally polyestrus species
mare, doe, ewe, queen
monestrus species
bitch
spontaneous ovulators
cow, sow, mare, doe, ewe, bitch
induced ovulators
llama, queen
