Causes of irregular returns to estrus
There are several factors that can cause an abnormally long estrous cycle.
Articles - Genetics and reproduction
Irregular returns: infectious causes
This article lists the main infectious causes that can lead to irregular returns to estrus.
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.
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.
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.
Welcome to 333
Connect, share, and interact with the largest community of professionals in the swine industry.
Celebrating 195585Users on 333!
Sign upAlready a member?
Smoother farrowing, fewer interventions
Thanks to strong ..
Calm, sound sows = smoother days on-farm
Fewer piglet transfers, more time saved
4 3
ArticleTips for cervical insemination
Despite being a well-known technique, mistakes are still made with its application on farms, and questions are raised that we will try to answer.
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.
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.
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.
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...
Breed cards: Mora Romagnola Pig
The Mora Romagnola is a breed of pig from Emilia-Romagna, in northern Italy. The name ‘Mora’ was codified in 1942 and is due to its colour, dark brown tending to black.
Breed cards: Mangalitsa (Swallow-Belly Mangalitsa) Pig
Mangalitsa is an autochthonous fatty type pig breed, created from the old Serbian Šumadinka breed.
Intake patterns of lactating sows: More important than you may realize.
Deviations from the sow's normal consumption pattern during the lactation phase have important production implications.
9 4
ArticleTips for heat detection
In the first part of this article series we addressed how to correctly stimulate oestrus. In this article we continue talking with swine reproduction specialist, Javier Gil Pascual, focusing on heat detection.
Breed cards: Lietuvos Baltosios Senojo Tipo
Lietuvos Baltosios senojo tipo pigs are remaining purebred pigs of local Lithuanian pig breed (Lietuvos Baltosios) adapted to the specific local environment and locally available feedstuffs.
Do you know how to interpret your farm's retention rate?
Does a high retention rate indicate high productivity?
Breed cards: Lietuvos Vietinė Pig
The Lithuanian indigenous wattle (Lithuanian: Lietuvos vietinė) is a domestic pig native to Lithuania and is one of the oldest pig varieties in Europe.
Breed cards: Krškopolje Pig
This chapter presents the history and the current state-of-the-art in the only Slovenian autochthonous pig breed - Krškopolje pig (Krškopoljski prašič).
Tips to stimulate gilts and sows coming into heat
In a series of articles, swine reproduction and insemination specialist, Javier Gil Pascual, addresses the key aspects of oestrus stimulation and detection, and insemination.
Breed cards: Ibérico (Iberian) Pig
History and current status of the Iberian breed, an autochthonous pig breed of the Iberian Peninsula.
Authors
What makes us stand out is the quality and independence of our contents. Find out about the authors who make it possible.
+ Likes
- What could cause this creamy-colloidal discharge from the vagina of this..
- Have you visited our Scientific Publications page recently? Explore the..
- Stefan Buzoianu Joins the Tonisity Board of Directors
- A Synergistic Enzyme Strategy: Protease and Amylase to Improve Digestibility and Reduce Post-Weaning Diarrhea
- Philippe Mazerolles, Corporate Swine Range Manager Chez, Ceva Sante Animale,..
60% of 333 users believe that semen doses rotation is useful, but is it really?
Some routines are widely used on the daily work of pig farms and we can even think that there is some good logic behind them, but have they been scientifically tested?
Farrowing rate isn't everything in gestation performance
Which indicator best reflects performance - farrowing rate or non-productive days?
Do we fully understand gilts? Do we treat them as they deserve?
Gilts have more returns to estrus... but why?
Breed cards: Gascon Pig
History and current status of Gascon pig breed. This French autochthonous breed, which almost disappeared, now enjoys a new boom.
Breed cards: Black Slavonian Pig
History and current status of Black Slavonian (Crna slavonska) pig breed, an autochthonous pig breed in the Republic of Croatia.
Breed cards: Cinta Senese pig
History and current status of Cinta Senese pig breed, one of the Italian autochthonous pig breeds.
2 1
ArticleBreed cards: Apulo-Calabrese Pig
History and current status of Apulo-Calabrese pig breed, one of the Italian autochthonous pig breeds.
The role of your farm on the sows' reproductive potential (2/2)
What is more important: the farm or genetics?
Welcome to 333
Connect, share, and interact with the largest community of professionals in the swine industry.
Celebrating 195585Users on 333!
Sign upAlready a member?