Page 12 of articles about genetics-reproduction in Articles

We are going to see a practical example of how to even out litters after the farrowings in a quick way and minimizing the swappings of piglets.

Today sows have a milk production of 8-12 liters/day or more. The challenge of feeding the lactating sow is not new and improvement to the genetic potential of lean and prolific dam lines make this issue of critical importance for any breeding herd.

Short weaning to service interval isn’t always a synonym for good management, since we have to take into consideration not only average number of days, but also the effect on the percentage of distribution after returns.

It would be so nice if the sows could warn us when there are problems when they are giving birth to their piglets during labour! This seems impossible… Or maybe it is not so.

There was an increase of repetitions in females (at 17-28 days, cyclic and acyclic, with a repeat rate of 22%) and mucous-like, white to brown (chocolate) vulvovaginal discharge hours after artificial insemination.

In the previous chapter we saw how level litters by size. Now we will see how to do it by number.

In the previous chapter we discussed the ideal time to level out litters of newborn piglets. Here's how to do it.

The ingestion of Ig in sufficient quantity is the first priority. So much so that it even comes before the factor that seems most important: the feed supply.

What if we were to wean on Friday and were able to block farrowings for 2 days? The bulk of farrowings would be concentrated on Monday.

Long farrowings increase mortality, and deaths occur above all in the last 1/3 of the delivery.

Abortion occurred in 90% of first parity sows and in 10% of second parity sows.

The dispersion of matings described in the previous article is even more drastic on farms operating in bands over one week.

When gilts were mated at a little more than 100 kg, productivity at 2nd parity had a huge decline and the sow was never able to reach their maximum potential.

In the last chapter on hormone management we looked at the advantages of “a la carte” altrenogest treatment as opposed to the 18 day treatment used to synchronize gilts.

In this chapter the use of progesterone derivatives to modify the duration of estrus in sows is explained.

A good result in stillbirths is difficult to achieve without inducing farrowings.