Vol. 10, Special Issue 10 (2021)

Author(s):
Pavan Kumar C, Ramesh PT, Sundar NS and Veere Gowda BM

Abstract:
Sheep showing clinical signs of nasal discharges, coughing, fever and dullness were tentatively diagnosed as respiratory tract infections were included in the present study which were confirmed as respiratory diseases of bacterial origin through cultural examination. Over all occurrence of sheep respiratory tract infections is found to be 2.09% (54/2768) in the study period. Age-wise analysis revealed higher occurrence of respiratory tract infections in 3-6 m age group (42.20%) followed by 6-12 months (29.97%) and lower in 3months ( 14.68) followed by 1-3 years (13.15%) . Occurrence was higher in Male animals compared to female. Relatively higher occurrence was observed in rainy season (55.66%) followed by winter (31.19%) and a comparatively lower occurrence in summer (13.15%). Month wise occurrence analysis revealed higher number of cases in the month of September (n=60) followed by October (n=53), November (n=47) and August (n=45). Whereas lower incidence was observed in the month of May (n=7) followed by April (n=11). Relatively higher prevalence (22.66%) is recorded in semi intensive farming system when compared to open grazing system of rearing (10.81%).