Mycoplasma iowae fertőzés előfordulása egy előnevelt pulykaállományban - Esetismertetés

Abstract

SUMMARY Background: M. iowae is a well-known pathogen in poultry industry. The main economic loss caused by this pathogen is the reduction of hatchability due to embryonic death. There are few reports that have associated M. iowae with stunting, poor feathering and leg abnormalities including chondrodystrophy in commercial turkey farms.Objectives: The aim of this report was presenting the pathological findings in a M. iowae infected commercial turkey farm and collecting data which influence the economic losses.Materials and methods: The authors dissected turkeys according to labora-tory standard method. During necropsy tissue samples were collected for his-tological examination. Bacteriological culturing was made from bone marrow, heart blood and liver. Faeces samples were examined by flotation technique. Faecal samples were also transferred to mycoplasma culture medium. The spe-cies level identification was carried out by real-time PCR. Results and discussion: After settling the day-old mortality was very high. The poults were stunted and exsiccated. Later bone deformities (mainly the abnormal development and torsion of tarsometatarsus), uneven growth and poor feathering can be observed at the end of the brooding period in the flock. The presence of M. iowae can be detected by the ninth day of brooding period (earlier it was not examined). The main economic losses were due to the day-old mortality and the uneven growth. The observed gross lesions were identical as described by other authors.