Hyperprolific? Yes, but not so much
Sows with more than 16 piglets Total Born (TB) per litter have twice as many stillbirths (SB) as those with 13 to 16 TB litters, and three times more SB than sows farrowing litters smaller than 13 TB.
Page 3 of articles about prolificacy
Using first and second parity number born alive information to estimate later reproductive performance in sows
Early parity number born alive classification effectively predicts later parity performance. Sows classified as high in both parity one and in parity two had larger litters in later parities.
Relationships between ovulation rate and embryonic and placental characteristics in multiparous sows at 35 days of pregnancy
A high avulation rate results in an moderate increase in the number of vital embryos at day 35 of pregnancy, but compromises development in the surviving embryonic/placental units, suggesting that the future growth and survival of the embryos might be further compromised.
Management interventions for large litters: Economic assessment
Milk supplementation shows much higher growth rates in the fattening stage, so its implementation would be interesting to regain body condition in animals with low birth weight.
Foster sows, how to make them?
If we decide to use foster sows to wean the "extra" piglets farrowed by hyper-prolific sows, we must decide which system is best suited to our farm and our management conditions.
The use of oxytocin in liquid semen doses to reduce seasonal fluctuations in the reproductive performance of sows
On the basis of the presented results, it should be noted that the use of oxytocin into insemination doses improves the farrowing rate and other parameters of the reproductive performance of sows.
Watch for the monitoring of farrowings
This watch has three circles: the blue one represents the hours, the green one the liveborn piglets, and the red one the stillborn piglets.
At what age and weight should we inseminate our gilts?
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.
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NewsEvolution of the numerical productivity during the last decades
France has been, continuously, the country with the highest productivity in comparison with Spain and The Netherlands, reaching 28.70 weaned piglets per sow and year in 2013.
Marking foster sows on the back with the number of piglets to adopt
The trick consists in selecting the appropriate foster sows and marking them on the back with the maximum number of pigs that they can take care of.
The breeding herd, the source of all pork profits: more piglets or heavier piglets?
It' is not as simple as the larger pigs have better survivability...
Genomic analysis reveals selection for Asian genes in European pigs following human-mediated introgression
Researchers from Wageningen University explain that a number of important characteristics of European pigs have Asian origins.
Compounds from multilayer plastic bags cause reproductive failures in artificial insemination
This is the first described relationship between reproductive failure and toxic compounds released from plastic bags.
The importance of hyperprolificacy
Achieving a high prolificacy and knowing how to take advantage of it (transform it into weaned piglets) is vital for the productivity of a sow farm.
Swine artificial insemination: which technique to use and how many sperm per dose?
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.
Non-surgical pig embryo transfer is a reality
The procedure is simple, quick and well tolerated by the recipient sows.