Page 30 of articles about health in Articles

Well intentioned treatment of piglets at birth may adversely affect the normal early nasopharyngeal or tonsil colonisation making pigs vulnerable to respiratory infections due to potential pathogens present within the herd.

A comprehensive picture of viral variation at the beginning of control and elimination projects is critical for effective monitoring of progress and effectiveness of implementation procedures, and for identification of new virus introductions to farms and to the region.

In the future, the EU will have to define its swine salmonellosis reduction objectives for each country depending on their starting point.

Altering animal flow to insure exposure to PCV2 prior to breeding, as part of an acclimation program is necessary to minimize the risk of PCV2 associated reproductive disease.

There are still unknown factors that prevent or block PRRSV replication in the endometrium and the not sufficient number of susceptible cells in the placenta might join forces and cause resistance to placental/transplacental PRRSV infection before 90 days of gestation.

Cross-sectional sampling (different age groups during one herd visit) has the advantage that results are obtained quickly.

In this second part the actions described are the ones needed when the disease is already in the country.

In the last 4 batches of weaned piglets, the farmer saw around 3% of anorexic and lethargic piglets. All the treatments he tried failed (amoxicillin or florfenicol injections), and finally the piglets died.

ASF spreads mainly through the movement of infected pork and other animal products, as well as live animals, which includes wild boar.

Monitoring protocols in boar studs are often insufficient to timely detect an infection.

Four virus lineages, having clearly distinguishable HA, are currently co-circulating in European pigs and can be considered as enzootic viruses, even if their relative prevalence and level of incidence vary from one country to another.

After the clinical and serological evaluation it is decided to vaccinate against PRRSV, with which we achieve a gradual improvement in the health status on the farm. Some months later, a severe cough appears in the fattening pigs that later also appears in the nursery and in the sows.

The first cause of PCV vaccine failure is the purchase and use of generic vaccine of low quality and titre, but the exact cause of the failures can occur in various forms.

ASF is now firmly established in some areas of the Caucasus and Eastern Europe, where it is causing considerable trade disruptions, plus having a devastating impact on small-scale pig farmers.

Pigs in a commercial environment are consistently exposed to (sub) clinical infections and stressors, and systemic responses to such challenges significantly reduce the growth potential of modern pigs.

The veterinarian is called from a new established herd in Brittany because some clinical signs appear on gilts from the two first deliveries introduced in the farm.