Table 3 prevalence of different gross pathological lesions in the lungs of sheep and goat with their perspective age examined at Dessie abattoir
Lesions |  < 1 years (n = 82) | 1-3 years (n = 142) |  > 3 years (n = 196) | χ2 | p-value | |||
|---|---|---|---|---|---|---|---|---|
Frequency | Prevalence (%) | Frequency | Prevalence (%) | Frequency | Prevalence (%) | |||
Pneumonia | 39 | 47.5 | 96 | 65.6 | 98 | 50 | 8.49 | 0.01 |
Hydatid cyst | 0 | 0 | 10 | 8.9 | 8 | 4.1 | 6.32 | 0.04 |
Emphysema | 13 | 15.8 | 8 | 5.6 | 9 | 4.6 | 11.7 | 0.03 |
Atelectasis | 4 | 4.9 | 7 | 4.9 | 3 | 1.5 | 3.70 | 0.16 |
Congestion | 2 | 2.4 | 4 | 2.8 | 4 | 2 | 0.24 | 0.89 |
Hemorrhage | 4 | 4.8 | 6 | 4.2 | 3 | 1.5 | Â | Â |
Bronchoectasis | 0 | 0 | 0 | 0 | 3 | 1.5 | 3.45 | 0.18 |
Adhesion | 0 | 0 | 1 | 0.7 | 2 | 1 | 1.66 | 0.43 |
Anthracosis | 0 | 0 | 1 | 0.7 | 3 | 15 | 1.57 | 0.45 |
Total | 62 | 75.6 | 133 | 93.7 | 133 | 67.8 | Â | Â |