Articles - Pig health

The purpose of this study was to compare efficacy of LCE (load-close-expose) using attenuated PRRSV to that using live-virus exposure on breeding herds acutely infected with PRRSv.

How can we expect our livestock to acquire a healthy microbiome when there is such limited exposure to the microbes that they evolved with?

PCV-2 and PRRS are the most common infectious causes of abortions. Most abortions are also found to occur during the colder months, regardless of their cause.

This article explains how E. coli breaks the complex intestinal barrier mechanisms in a comprehensible way.

PED virus has challenged biosecurity programs in North America, the standards of sanitation have risen to a new level to address PEDV. The article deals with the most relevant changes.

The reasons behind the vaccination against influenza virus on a group of fattenig units with recurrent respiratory clinical pictures that belong to an integrated production system are discussed. Impact on production parameters and economic results are also shown.

Achieving good levels of colostral immunity by vaccinating sows is the first step to prevent scours; subsequently, active pre or post-weaning immunization must be added to prevent post-weaning diarrhoea.

PCV2 vaccination is nearly universal. Has viral presence decreased after 6 years of vaccination? Could vaccination policies be changed?

In the coming years, the use of antimicrobials will be more closely regulated, following the guidelines set by the WHO in its global report on antimicrobial resistance in 2014.

Exposure during acclimatization can be considered the first dose of a vaccine, and pre-farrowing exposure its booster.

Oedema disease prevention has traditionally been accomplished through the administration of antibiotics or manipulation of gut microbiota through diet. However, in recent years, many vaccines have been developed to prevent clinical manifestation of the disease.

The farmer, alarmed, calls us describing a clinical picture of abortions in the last third of gestation, weak newborn piglets, stillbirths, mummified piglets, agalactia, sows with fever and small litters.

It appears that the use of non-toxigenic C. difficile as a probiotic can reduce the severity of histologic lesions and the quantity of toxins detected in neonatal piglets.

The economic potential lost in a unit positive to PRRS could be around 35 – 37% of net unit margin.

The recent development of PCR serotyping is a step forward that allows any laboratory to determine the serotype of the isolated H. parasuis strain.

Assessment of a study, by Enric de Marco, on the use of anti-inflammatory drugs in sows at farrowing in order to reduce piglet mortality and increase the weight of piglets at weaning.

Diarrhoea is their most typical clinical manifestation, and the earlier the onset, the more harmful it is. Newborn piglets can present with another clinical picture, with signs of sepsis (shock, depression, death, polyarthritis), which is associated with an extraintestinal E. coli.

In the United States, there are 17 genetic clades that have emerged and persisted following spillover events from non-swine (namely human) hosts and subsequent ecological and evolutionary processes

Management factors and environmental conditions are often triggers or predisposing agents, not only to the clinical presentation of the disease, but also its severity and course.

We are talking about PRRSV, M. hyo, PCV2, App and swine influenza virus.

The article provides an alternative to the current vaccination programs that could be the solution for farms with early onset oedema disease. However, this alternative —consisting of vaccinating the dams at the end of gestation to achieve post-weaning piglets immunization—, also raises questions...

Needle-free injection technology improves the dispersion of vaccines throughout the tissue.

Genetic selection provides a powerful tool to improve and maintain gut health in industrial pig production, and may in the future become a more sustainable alternative to the currently massive need for antibiotics.

Presumed causes of ear necrosis are many and generally speculative; indeed, there are many risk factors associated with ear necrosis including trauma from pen mates or the environment, overcrowding, commingling, high humidity, limited feeder or water space, misformulated rations, mycotoxins, viral diseases, or bacteria.