9 - Mating Definition - Female Heat
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Modified on: Thu, 27 Mar, 2025 at 4:30 PM
What is the definition of a Female Heat / Estrus?
Estrus, or heat, is the stage in a female sow's reproductive cycle during which she becomes receptive to mating with males. At this time, estrogen levels first increase and then sharply decrease, and mature eggs are released from the ovaries.
How long does it take from one heat to the next one?
21 days.
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