Author Maria Pieters / United States / Tuesday 23 January 2018
No single strategy will confer total protection. A well-orchestrated combination of various methods adjusted to a single production unit or system will be needed.
Mycoplasma hyopneumoniae (M. hyopneumoniae) is the primary agent of enzootic pneumonia (EP), which causes a chronic respiratory condition in pigs characterized by dry cough, decreased average daily gain and increased number of days to reach market weight. M. hyopneumoniae infections are highly prevalent and present in almost every location in the world where pig production is established. Pigs infected with M. hyopneumoniae can exhibit clinical disease, however, in some herds the disease can be sub-clinical, which can go unnoticed, but production parameters will be still affected. Some of the hallmarks of the infection with M. hyopneumoniae are its chronicity and slow transmission rate among pigs, which accounts for the endemic picture observed in the field. Also important is to mention that M. hyopneumoniae co-infections with other swine pathogens, bacterial as well as viral, are quite common and are referred to as Porcine Respiratory Disease Complex (PRDC). Thus, M. hyopneumoniae infections are a significant contributor to the overall respiratory disease in pigs.
hyopneumoniae control approaches
Fortunately, several approaches can be used to attempt controlling M. hyopneumoniae infections and minimizing the effects of enzootic pneumonia and PRDC, without seeking disease eradication. There are three main strategies which are management, vaccination, and medication, that can be applied independently, but are usually combined in order to achieve greater disease control