SA 03. Bacteria in the posterior respirator tract of healthy calves
Abstract
Forty seven (47) clinically healthy calves (15 to 120 days old) were sampled in order to demostrate the bacteria present in the posterior respirator tract and to determine the sensibility of isolated microorganism to fifteen (15) antibiotics. The tracheal - bronquial - secretion were obtained by the transtracheal aspiration technique. Fifteen (15) antibiotic were used to stablish the sensibility pattern. Calf samples were taken from six (6) forms located into a dry tropical forest environment in the Zulia State, Venezuela. SAS was used for statistical evaluation of the data. Six (6) bacterial groups were isolated from forty seven (47) samples representing the 87.3 %, they were Staphilococcus aureus (58.5 %), Escherichia coli (17.1 %), Proteus mirabilis (12.2), Klebsiela pneumoniae (4.9 %), Citrobacter diversus (4.9 %), Enterobacter aglomerans (2.4 %). Most isolated microorganism had a high sensibility to antibiotics such as: Gentamycin (97.6 %), and Chloranphenicol (92.7 %), and high resistence to Ampicillin (78.0 %), Penincillin (77.2 %) and oxillin (70.07 %).