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Veterinary diagnosis


Poultry serology

We regularly conduct a broad variety of serological methods in our diagnostic laboratory. They mainly involve the detection of antibodies for bacterial and viral pathogens in farm poultry. These findings provide information on the pathogen-specific antibody status in the poultry in question. They therefore indicate possible pathogen contact or the effectiveness of vaccination in downstream poultry diseases.

  • Avian encephalomyelitis (AE)
  • Newcastle disease (ND)
  • Infectious bursitis (IBD) or Gumboro disease
  • Infectious bronchitis (IBV)
  • Avian rhinotracheitis (TRT)
  • Egg Drop Syndrome (EDS)
  • Infectious laryngotracheitis (ILT)
  • Mycoplasmosis: Mycoplasma gallisepticum (MG) and Mycoplasma synoviae (MS) 
  • Aviäre Enzephalomyelitis (AE)
  • Newcastle-Krankheit (ND)
  • Infektiöse Bursitis (IBD) oder Gumboro-Krankheit
  • Infektiöse Bronchitis (IB)
  • Aviäre Rhinotracheitis (TRT)
  • Egg Drop Syndrome (EDS)
  • Infektiöse Laryngotracheitis (ILT)
  • Mykoplasmose: Mycoplasma gallisepticum (MG) und Mycoplasma synoviae (MS) 

Porcine serology

Among other things, the infestation of pig populations can be assessed based on a serological analysis of serum or plasma to detect antibodies for a large number of salmonella serovars. Analysis of the meat juices also helps to prevent contamination of food.



Genotyping of sheep

1. Scrapie

Like BSE, scrapie is among the progressive, contagious and fatal diseases of the brain. It is caused by pathologically altered proteins (prions) that damage the nerve cells. The disease is transmitted by contaminated water or fodder (also pastures), etc. 

A DNA analysis is conducted on a blood sample to determine the genotype and hence to assess the scrapie risk. Certain mutations in the prion cell of the sheep (ovine PrPc) lead to an elevated disease risk.

The genotypes are assigned to 5 risk groups (G1-G5). The G1 group is practically resistant to scrapie and also does not present a risk for following generations. Above group G3, the risk to the individual animal rises.

Awareness of the scrapie genotype is an essential factor in sheep breeding.

2. Spider Lamb Syndrome (SLS)

Spider Lamb Syndrome (SLS) leads to skeletal deformation in lambs. It is caused by a genetic defect that the lamb inherits from both of its parents. A sheep carrying just one defective gene is healthy, but still a disease vector. Its young may contract SLS.

Awareness of the SLS genotype is recommended in sheep breeding.
Suitable samples include EDTA blood or tissue from the animal’s ear.

 


Diagnosing infertility in cattle

Free-martins are infertile cows. During gestation, cells and proteins are exchanged between twins of different genders, leading to underdeveloped genitals in the female fetus.

A biomolecular test is performed to obtain absolute certainty. The Y-chromosome is identified in the blood sample of a female animal, although it would normally be found exclusively among males.

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