Page 3 of articles about AI - artificial insemination in Articles

Meeting batch breeding targets requires availability of enough service-ready weaned sows and gilts.

This article lists the critical points that must be considered for a successful post-cervical insemination in sows.

The idea is to modify the doors of the pen where sows are housed in groups to increase the contact with the boar.

It is necessary to find alternatives to definitely implement this technique in primiparous sows and start its use in gilts.

The goal of this trick is to make a practical, simple and cheap catheter holder.

This trick consists in using a spring for holding the semen bag during the insemination.

Mating the stimulated sows eases the sperm transport to the oviduct, where they meet the ova.

Sows inseminated with encapsulated semen had more sperm cells concentration at the site of fertilization.

20 years ago we inseminated gilts when too small, then we inseminated them when too heavy, and now we are returning to an intermediate weight.

Encapsulation allows to reduce the dose per sow and a sequential release of sperm.

Let us see the case of a farm with 5 non-productive days more than the average of the farms with the same profile. Where are these days lost?

Monitoring protocols in boar studs are often insufficient to timely detect an infection.

We should be cautious when setting the number of sperm per insemination dose, so the urge to reduce it does not make us use a number that is under the fertility threshold. Something that may be productive and/or profitable for a certain farm may not be so for another farm.

There is an unusual increase of the returns-to-oestrus at 31-39 days. The majority are due to sows previously negative to the pregnancy ultrasound testing, and the returns-to-oestrus happened before 42 days.

PCV2 vaccination of the gilts prior to insemination with PCV2 spiked-semen showed a clear decrease of viral load in the gilts as well as a much lower viral excretion that were compatible with foetus protection.

The goal of this trick is to create a register of the coming into heat of the gilts that can be interpreted quickly and easily, and to control the day of the beginning of the treatment with altrenogest when we wish to delay their mating/service.