An epidemiologic research of enzootic...
Project: An epidemiologic research of enzootic pneumonia in pigs.
01-OCT-93 – 31-DEC-99
- we investigate : - the occurrence - the differnce between farms with saws(?) and fattening pigs and fa rms only with fattening pigs- the most important risk factors - the time of infection and the economic loss - the effect of vaccination