Page 32 of articles about health in Articles

Infection of pigs occurs at birth but maternal immunity suppresses viremic infection in growing pigs until immunity wanes around 10 weeks of age, when a hidden infection re-appears.

On the finisher sites, the farmer noticed that the growing pigs in all the farm sheds had become dull and lame.

How to administer drugs in order to optimize the speed of action, the efficiency and the financial cost.

Might be there is a little doubt nowadays on the beneficial clinical and economic effects of PCV2 vaccination in subclinical infections in piglets, but… which is the role that sows play in the whole picture?

One of the challenges when conducting a disease elimination project is to ensure that the pathogen has in deed been eliminated from the herd.

None of the employees on this farm had ever seen TGEv before, but were concerned that is what they were seeing.

This economic model was create to provide a decision support tool for farmers and veterinarians, who can enter their own data to calculate the severity of PMWS on their farm, the cost of disease and what could be the most cost-effective control measure.

Ileitis can take different forms, and it is frequent that a subclinical and a more severe and clinical form coincide.

We allowed the shared lactation between different litters by raising the fences located between the farrowing pens a week before the weaning due date.

In general terms, immunization through vaccination is the easiest and safest way to stabilize a herd.

It is believed that TTSuVs themselves do not directly cause any disease but they could potentiate coinfecting pathogens and participate as triggering factors for diseases like PCVDs and PRDC.

PRRSV by itself may induce mild-to-severe respiratory disease but rarely results in mortality.

PCV2 may reach embryos/foetuses upon transplacental spread during viremia or upon insemination with contaminated semen.

Knowledge of the dynamics of infection within the herd will allow implementation of better control strategies in affected herds.

This particular case occurred in a multisite farrow to finish operation in South Western Ontario, Canada.

Resolving the basis of viral and host variation will require identification and characterization of key B- and T-cell epitopes conserved among diverse PRRSV, and of the molecular and structural details of key effector antibodies, T-cell antigen receptors, and MHC molecules that mediate broad, cross-protective immunity.