The insemination is done at the same time a woman is going to ovulate.
From the delawareonline.com
Breeding attempts often fail because apparently healthy females don't ovulate normally.
From the newscientist.com
Because of a hormonal condition, Kasten didn't ovulate monthly.
From the delawareonline.com
As a woman ages, the quality of her eggs tends to decline and she may not ovulate as frequently.
From the cnn.com
Wildebeest females breed seasonally and ovulate spontaneously.
From the en.wikipedia.org
Big, mature does generally ovulate earlier than smaller ones.
From the courier-journal.com
A mother with a multiple birth could have used hormones to grow and ovulate multiple eggs at the same time.
From the edition.cnn.com
The fewer placebos, the less likely you are to ovulate because you'll have fewer hormone-free days.
From the orlandosentinel.com
He was working with mouse embryos and testing hormone preparations that induced female mice to ovulate.
From the nytimes.com
More examples
Produce and discharge eggs; "women ovulate about once every month"
(ovulation) the expulsion of an ovum from the ovary (usually midway in the menstrual cycle)
To produce eggs or ova
(ovulation) The release of an ovum from the ovary
(Ovulation) Release of the female germ cell (egg) by the ovary. Cows usually ovulate several hours (up to 15 hours) after the end of estrus or standing heat.
(Ovulation) When the ovaries release an egg, about once each month, as part of the menstrual cycle.
(Ovulation) This is where a ripe egg is released by the ovary and begins it journey down the fallopian tube towards the uterus.
(Ovulation) The monthly process in which an egg, released from the ovaries, travels through the fallopian tubes to the uterus.
(Ovulation) is the process in a female's menstrual cycle by which a mature ovarian follicle ruptures and discharges an ovum (also known as an oocyte, female gamete, or casually, an egg).