Sow estrus identification

Sows from 6 to 7 months of age at the beginning of their sows begin to show estrus. In order to increase the number of sows in the sow, it is advisable to skip the first oestrus and to inseminate or breed when the sow is in heat for the second time. In most cases, the primal sows begin their third estrus 10 days after weaning.

Healthy sows of the sows that are usually healthy in adult sows are usually estrus 4 to 7 days after they are weaned. The genitals of the estrus sow started to develop mild congestion and became progressively more visible. The color of the mucous membranes in the vulva changed from pink to dark red, showing the performance of crawling across other sows, and also allowing other sows to climb. This is the sow. The most basic manifestation of estrus. When the breeder exerts pressure on the back of the sow, the sow is immobile (also known as drowsy reaction), indicating that the sow has entered the estrus phase and is most suitable for insemination. In an intensive large-scale pig farm, the trial boar can be walked on the corridor of the sow house and contacted and communicated with the sow inspected. When the estrus performance is found, the keeper re-enters the sow pen and presses it forward. Back examination to determine the degree of heat, to determine whether insemination.

Under well-managed farm conditions, 90% of the sows will be estrus at 8 days after weaning, but sometimes, although the farm environment and estrus control are better, the sows are still not able to be in the right time. In estrus, you can use PG600 to minimize the number of days of empty time.

The estrus inspection is best performed about 30 minutes after feeding, when all sows are quiet and easy to check out the sow. When using trial boars, it is more important to observe the sow’s response than to monitor boar behaviour.

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