بررسی عوامل ویروسی و باکتریایی دخیل در پنومونی آنزیوتیک در شهرستان اراک

Calf pneumonia is a common dissease in farms and co uses economic looses every year. because the effect of this disorder on a vital organ (lung) different problems such as decrease in growth, mal production and sometimes death may occures. Various factores corporate occurrence of disease, from those viruses (IBR, PI3, BRSV, BRD, ...) and bacteria (Pasteurella, Haemoplilus, ...) are important. in order to detection of causal agents in Arak city 100 serum samples (in pairs) collected from calves with respiratory defects, 63 nasal swab samples were examined for identification of antibodies or isolation of viruse- in addition 97 lung tissue samples collected from slaughter house were examined pathologically and bacteriologicalJy Serological survey in dicated contamination wiht IBR and P13 in %24 and %6 of serum samples respectively. virus didn't isolate from swab samples, bacteria such as pasteurella, Pseudomonas, staphylococcus and streptococcus isolated from lungs with histopathologic igns.