الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The delay in the clearance and absorption of pulmonary fluid within few hours after calving is critical predisposing factor for the occurrence of perinatal mortality. The aim of the current work is to validate the efficacy of each diagnostic imaging tools (X-ray, and ultrasonography) as well as blood gas monitoring for assessment of lung of neonatal calves. For this purposes thirteen caesarean-sectioned calves underwent for the lung assessment in Clinic for Food Animals, Üllő, Faculty of Veterinary Science, Szent István University, Budapest, Hungary. The present investigation revealed that there was improvement in the levels of different arterial and venous blood gas parameters, as well as the results confirmed that lung fluid clearance was recorded after 24 h of birth. The results of the subjective radiographic assessments according to the scoring systems (pulmonary opacification and lung expansion). There was a gradual improvement in the extra-uterine life adaptation expressed by the improvement in the lung expansion, air-content of the lung and improvement of the lung fluid clearance at 24 h. The ultrasonographic examination using B-line new artefact tool of examined calves revealed that there were over-time improvement of the ultrasonographic scores of different lung regions. The lung aeration and pulmonary fluid clearance occurred at 12 hour of birth.