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What makes us stand out is the quality and independence of our contents. Find out about the authors who make it possible. Our goal is to generate a virtual community of advanced users in the sector.

Enric Marco

Marcovetgrup s.l. - Spain Author

684 Followers 64 Articles

He was born in Barcelona in 1963, obtained his degree in Veterinary Medicine from the University of Saragossa (Spain) in 1986, specializing in Animal Production. In years 1990 and 1991 he lived in Great Britain, Holland, Germany, Denmark, and USA, studying and practising with specialists in the swine sector.

In year 1991 he founded the swine consultancy B&M c.v.p. together with his partner José Barceló, and in 1995 the consultancy expanded with a new partner: Miquel Collell. In 2006, together with Miquel Collell, and through MARCO I COLLELL SL, he continued offering his consultancy services: control and diagnosis of diseases, production control and farm management, epidemiology, environmental control, biosafety, and human resources. Among his clients we find genetics companies, large companies (10,000-30,000 sows), cooperatives, independent producers, Veterinary Medicine faculties, pharmacological companies, feed mills, and international organizations, and since December 2012 he does this through his own company: MARCO VETGRUP SL.

Enric Marco is a member of different professional associations (Veterinarians’ Official College of Barcelona, Pig Veterinary Soc., ANAPORC, Member of the Scientific Committee of the Swine Pathology and Production MSc degree organized by the Veterinary Medicine Faculty at the Autonomous University of Barcelona), he has published articles in several specialized magazines and has held several conferences at a national and international level).

Updated CV 06-May-2015

Enric Marco 684 Followers 64 Articles

Articles 64

Figure 3. Effect of parity on the percentage of sows expressing estrus within the first 7 days post-weaning in summer compared to spring (adapted from Belstra et al., 2004).

Genetics-ReproductionArticle

Anestrus in multiparous sows

When multiparous sows are affected, not as many need to be culled as in the case of gilts (which we saw in the last article). Generally sows will eventually show signs of heat, but with a considerable delay compared to a normal heat.

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Genetics-ReproductionArticle

Abortions in mainly first parity sows

Why are there more abortions occurring in first parity sows?

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Image 1. Time taken by the boar to detect gilts in heat after being introduced into the pen. P. English, 1986

Genetics-ReproductionArticle

Anestrus in gilts

Lack of estrus in gilts is a common cause for culling, which increases the need for gilts and the cost of gilts. Let's take a look a what causes anestrus:

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Photo 1. Embryo expulsion.

Genetics-ReproductionArticle

Non-infectious causes of irregular returns to estrus in sows

This article lists the main non-infectious causes that can lead to irregular returns to estrus.

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Photo 1. Lesion on the foot of a sow.

Genetics-ReproductionArticle

Causes of regular returns to estrus: the sow

This article covers the main sow-related factors that can cause regular returns to estrus.

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11-Jan-2021j.dupuisNice support figures Enric, very useful, thank you, Jeanne

Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Causes of regular returns to estrus: the seminal dose or boar

This article covers the main semen- or boar-related factors that can cause regular returns to estrus.

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

When are the returns happening?

Total returns to estrus should not exceed 8%; if they do, we must ask ourselves when they occur.

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06-Nov-20203911chaovery useful，thank you

Photo 1. Pigs

Does the rapid ASF test offer any advantages?

Will a faster diagnosis make a significant difference in the fight against African swine fever?

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Genetics-ReproductionArticle

Low farrowing rate troubleshooter

Why is my farrowing rate less than ideal? Use this tool to discover the potential causes. Navigate using the flowchart or use the buttons within the text to access the different parts of the tool.

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Are there sows returning to estrus?

If I see a farrowing rate less than 85%, the next question I should ask is, "Are there sows returning to estrus?"

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Causes of early returns to estrus

Why do my sows come into heat soon after service?

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Causes of regular returns to estrus

Factors related to the semen dose, the boar, or the sow can cause regular returns to estrus.

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Causes of irregular returns to estrus

There are several factors that can cause an abnormally long estrous cycle.

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Types of gestation losses that can lower the farrowing rate, detailing the different types of returns to estrus based on they occur.

Genetics-ReproductionArticle

Late returns to estrus

What are the causes of these returns?

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Photo 1. Sow with discharge from vulva

Genetics-ReproductionArticle

Irregular returns: infectious causes

This article lists the main infectious causes that can lead to irregular returns to estrus.

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Genetics-ReproductionArticle

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.

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