Some Bacteriological and Mycoplasmalogical Studies on Respiratory Tract Infection In Buffaloes and Cows

This study was conducted mainly on 460 animals and results obtained showed that a total of 118 buffaloes and 342 cows were under investigation including 170 animals were apparently normal (128 cows and 42 buffaloes) while the remaining 290 animals conditidiseased included 214 cows and 76 buffaloes. Concerning diseasedanimals 117 cows were positive with the percentage of (54.67), out of 76 diseased buffaloes 49 were positive with the percentage of (64.47),166 out of 290 diseased animals were positive with the percentage of (57.24) while only 47 out of 170 apparently heanimals were positive with the percentage of 27.64.A total of 838Specimens collected including 195 specimens (80 lung from apparently normal animals with 18.75% is a positive while 115 lungs from disease animals with 8l.25% is positive). 189 tracheal swabs (76 from apparently normal animals give 1 1.8% positive cases apositive cases and 177 samples from diseased animals with 85.30/0positive cases. 189 specimens of lymph nodes including 74 specimensfrom apparently normal animals with 10.80/0 positive cases and 115specimens from diseased animals with 66.960/0. Bacteria were isolatedfrom 195 diseased animals and 36 apparently healthy animals with thepercentage of 84.42 % and 15.58% respectively, while mycoplasmaI were isolated from 152 diseased animals and 13 apparently healthyanimals with the percentage of 96.2% and 7.9 % respectively.Concerning mixed infection the high prevalence was also fr0111