Asian Journal of Animal and Veterinary Advances1683-99191996-3289Academic Journals Inc.10.3923/ajava.2010.72.76TanritanirPinar RagbetliCennet DegerYeter CeylanEbubekir 1201051The purpose of this study was to investigate examine changes in venous blood gases of Brown Swiss calves with pneumonia. For this purpose, 30 calves exhibiting having clinical sings of pneumonia and 20 healthy calves were used. Venous blood samples were collected from the healthy and diseased calves before and after treatment with Draxxin (tulathromycin-Pfizer) in order to determine pH, pCO2, pO2, tCO2 and HCO3 levels by Blood Gas Analyzer. Compared to the controls group, in the diseased animals, there was a significant increase of pCO2 and HCO3 levels, together with a significant decrease of pH and pO2 levels (p<0.05). One week after treatment, pH, pCO2 and HCO3 levels were significantly changed. Despite this change, these levels were still similar with other groups. Also, the venous blood pO2 level went back increased to be statistically the same as the healthy animals. The tCO2 level was not found statistically different among the three groups. It is concluded that pneumonia in calves impairs gas exchange, but that gas exchange improves rapidly after treatment.]]>Cambier, C., T. Clerbaux, B. Detry, V. Marville, A. Frans and P. Gustin,200233283290Giles, C.J., W.T.R. Grimshaw, D.J. Shanks and D.G. Smith,1991128296300Guyton, A.C.,200110th Edn.,pp: 463-472pp: 463-472Hastings, B., J.M. Neill, H.J. Morgan and C.A.L. Binger,192412545Kaymaz, A.A., U. Bakırel and T.B. Lal,20012719Karademir, B., M. Saatci, F. Celebi, H.M. Erdoğan and A.R. Aksoy,19995155159Karademir, B., M. Saatc and A.R. Aksoy,200127385392Kiorpes, A.L., M.L. Mirsky, P.S. MacWilliams, L.R. Backstrom and M.T. Collins,1989539599Kiorpes, A.L., P.S. MacWilliams, D.I. Schenkman and L.R. Backstrom,199054164169Kolsuz, M., M. Metintas, I. Ucgun, S. Erginel, F. Alatas and E. Harmanci,20013282285Ok, M., I. Sen, H. Guzelbektas and A. Coskun,20051119125Pifferi, M., D. Caramella, A. Pietrobelli, V. Ragazzo and A.L. Boner,200572176181Poulsen, K.P. and S.M. McGuirk,200925121137Radostits, O.M., C.C. Gay, D.C. Blood, J.H. Arundel and K.W. Hinchcliff,20059th Edn.,pp: 421-465pp: 421-465