Mycoplasma hyopneumoniae – Page 5

Mycoplasma hyopneumoniae genetic variability within swine production flows

In this recent publication in the Canadian Journal of Veterinary Research, Dr. Alyssa Betlach from the MycoLab at the University of Minnesota investigates the genetic variability of Mycoplasma hyopneumoniae within and across various production flows within a single system.

Key points

Multiple-locus variable-number tandem repeat analysis allows to detect genetic variability between M. hyopneumoniae strains.
Four production flows were sampled over a duration ranging from 4 months to 3 years.
Between 1 and 6 variable-number tandem repeat (VNTR) types were found within the four production flows.
VNTR types in growing sites seem to originate from their respective breeding herds.

Natural transmission and detection of Mycoplasma hyopneumoniae in a naïve gilt population

Dr. Alyssa Betlach, member of the Maria Pieters Myco Lab, recently published a study on the natural transmission of Mycoplasma hyopneumoniae in Veterinary Microbiology. The study evaluated transmission rate in a naïve gilt population and compared various sample types to detect infection.

More accurate gilt testing needed to detect Mycoplasma hyopneumoniae

Alyssa Betlach -DVM, veterinarian with Swine Vet Center and graduate student at the University of Minnesota- talks in Pig Health Today^® about differences in the ability to detect Mycoplasma hyopneumoniae based on sample types.

Highlights

Transmission of M. hyopneumoniae is very slow compared to other pathogens. Gilts and sows have a critical role in the transmission of M. hyopneumoniae.
Accurate gilt surveillance is key in those sow herds seeking negative M. hyopneumoniae status.
To detect M. hyopneumoniae, the laryngeal swabs and deep tracheal catheters are more accurate than other sample types during the early stage of infection.

PCR detection of Mycoplasma hyopneumoniae in piglet processing fluids in the event of a clinical respiratory disease outbreak

Dr. Vilalta and collaborators from the University of Minnesota provide new insights for the potential use that processing fluid (PF) may have to detect M. hyopneumoniae in breeding farms by bringing us a clinical case published in VetRecord Case Reports.

Highlights

Genetic material of Mycoplasma hyopneumoniae from PF was quantified by real-time PCR.
The origin of M. hyopneumoniae genetic material detected in PF needs to be clarified.
Processing fluids are a potential sample to detect M. hyopneumoniae in breeding herds.

Graduate student spotlight: Dr. Alyssa Betlach

Recently, Dr. Alyssa Betlach was featured as a Farm Journal’s PORK’s Up & Coming Leaders. Betlach is currently pursuing her PhD with Dr. Maria Pieters on Mycoplasma hyopneumoniae while working as an associate swine veterinarian with Swine Vet Center in St. Peter, MN.