| Abstrakt: |
The purpose of this study was to document the frequency of respiratory diseases in broiler and layer flocks in the Rawalpindi District of Pakistan from July 2020 to June 2021. Infectious coryza, colibacillosis, and CRD were identified in 48, 30, and 22 of 240 broiler flocks, respectively. Infectious coryza, colibacillosis, and CRD were reported to be prevalent in 20%, 12.50%, and 9.17% of the population, respectively. Infectious coryza, collibacillosis, and CRD were discovered in 41, 34 and 28 of 160 layer flocks, respectively. Infectious coryza, colibacillosis, and CRD were reported to be prevalent in layer at 25.63%, 21.25%, and 17.50%, respectively. Respiratory diseases were observed throughout the year, but were more common during the winter months. A total of n = 201 samples (liver, heart, and lungs) were cultured during the investigation, with n = 89 proving to be positive for E.coli isolates. Lincomycin, norfloxacin, and neomycin were the most effective antibiotics against E.coli infections, while oxytetracyclin, doxycyclin, and colistin had the least effective zones of growth suppression. Prevalence, respiratory diseases, and poultry are some of the terms used in this study. [ABSTRACT FROM AUTHOR] |
