Page 9 of articles about AI - artificial insemination

Let us assume that the expected farrowing rate and live-born litter sizes are 90% and 12.5, respectively, but that current performance is 82% and 11.3, respectively. This means that too many sows are bred but failing to farrow and those that farrow are having fewer pigs.

Deciding which sows are going to be weaned on weaning day is an important task that should be examined well.

Despite its scarce use in commercial artificial insemination programs (used only in 1% of all inseminated sows) nowadays no one questions the sanitary, economic, and productive advantages of cryogenically preserved semen with respect to fresh or refrigerated semen.

Adjustment of replacement on farms working on 3-week batch system.

When fresh or refrigerated semen is used in countryside conditions, the number of spermatozoa and the volume of the dose using PCI can diminish

On many farms the introduction of gilts is not homogenous. However, the introduction of a similar number of gilts to each productive batch would be ideal. How can we do this?

The gestation period in the majority of sows is usually around 113 to 115 days. However, a percentage of sows can farrow normally up to 3 days before or after.

Aroused sows, Danish scientists have discovered, increases by several percentage points impregnation by artificial insemination. From TED Talk shared knowledge podcast.

Another convenient option for controlling the replacement entry is to incorporate the information on the breeding chart.

In the previous chapter we began to describe several systems for recording clearly and quickly the dates that gilts come into heat and for planning gilt service.

When external administration of the hormonal product is stopped, the levels of progesterone fall.