Causes of irregular returns to estrus
There are several factors that can cause an abnormally long estrous cycle.
Page 12 of articles about genetics-reproduction
Causes of regular returns to estrus
Factors related to the semen dose, the boar, or the sow can cause regular returns to estrus.
Causes of early returns to estrus
Why do my sows come into heat soon after service?
Irregular returns: infectious causes
This article lists the main infectious causes that can lead to irregular returns to estrus.
Are there a greater number of abortions happening in a certain parity?
The abortion rate among serviced sows should always be less than 2%. If it is greater, we must investigate at what point the abortions are occurring.
Are there abortions?
If my farrowing rate is less than 85% but my total returns to estrus are normal, the next step is to review abortions.
Abortions distributed evenly among all parities
If the abortion rate is higher than 2% and abortions are not concentrated around any particular group of sows, we should ask ourselves a few questions.
Breed cards: Negre Mallorquí (Majorcan Black) Pig
Negre Mallorquí pig is a native breed from Mallorca, characterized by its high rusticity and adaptation to the Mediterranean climatic conditions.
Magapor launches iGreen, the first AI catheter with biodegradable tube
iGreen is a catheter for swine insemination made of biodegradable material.
Breed cards: Moravka Pig
Moravka is a breed of combined production traits that was created as a result of unsystematic crossings of Šumadinka and Berkshire.
Vietnam imports thousands of pigs from Thailand in restocking efforts following ASF
Over the next four years, the industry is expected to import over 100,000 breeding pigs to repopulate the country's pig herd following the ASF outbreaks.
Nicaragua establishes a new pig farm farm for genetic improvement
The National Strategy for Swine Farming Development sets a goal of inseminating around 10,000 sows this year.
Are there open sows?
If the farrowing rate is less than ideal, with a normal percent of returns to estrus and abortions, we must consider the open sows.
Magapor launches a new APP, exclusive for customers
Magapor, a company specialized in swine reproduction, is proud to make a new APP exclusively available for their customers.
Do I have dead pregnant sows? What could be the cause?
If my farrowing rate is low, but the returns to estrus, abortions, and culled pregnant sows are all normal, I probably have dead sows...
Reproductive performance and expression of imprinted genes in somatic cell cloned boars
Cloned boars could be highly effective for proliferation of pigs with desirable characteristics, preservation of genetic resources and risk reduction against epidemic diseases.