Research Article
Pathology and Epidemiology of Fungal Infections in Layer Chicken Flocks
Table 1
Mortalities and egg productions in layer chicken flocks with and without fungal infection in the Kafrelsheikh Province, Northern Egypt.
| Flock no. | No. of birds | Age/week | Number of deaths | Mortality (%) | Egg% | Egg number | Aetiology |
| 1 | 9500 | 58 | 320 | 3.37 | 66.683 | 6335 | A. flavus AMS2 and 3 strains | 2 | 8300 | 60 | 404 | 4.87 | 63.019 | 5230 | A. Pipers AMS1 strain | 3 | 7000 | 61 | 334 | 4.77 | 64.33 | 4503 | Fusarium spp. | 4 | 1000 | 61 | 6 | 0.6 | 75.3 | 753 | Nutritional | 5 | 2000 | 61 | 4 | 0.2 | 72.65 | 1453 | Nutritional | 6 | 6000 | 61 | 80 | 1.33 | 53.33 | 3200 | Infectious coryza | 7 | 3500 | 60 | 48 | 1.37 | 64.29 | 2250 | Infectious coryza | 8 | 2000 | 55 | 45 | 2.25 | 57.5 | 1150 | Egg drop syndrome | 9 | 6000 | 60 | 22 | 0.37 | 72.5 | 4350 | Nutritional | 10 | 12000 | 61 | 820 | 6.83 | 63.58 | 7630 | ILT | 11 | 25000 | 61 | 12 | 0.05 | 80.92 | 20230 | Normal | 12 | 30000 | 62 | 27 | 0.09 | 82.33 | 24700 | Normal | 13 | 5000 | 59 | 160 | 3.2 | 59.04 | 2952 | Colibacillosis | 14 | 3000 | 57 | 923 | 30.77 | 51.13 | 1534 | IB | 15 | 15000 | 61 | 4500 | 30 | 63.33 | 9500 | Viral (IB) | 16 | 10000 | 61 | 15 | 0.15 | 76.2 | 7620 | Normal | 17 | 10000 | 61 | 30 | 0.3 | 70 | 7000 | Nutritional | 18 | 20000 | 62 | 420 | 2.1 | 65.33 | 13065 | Bacterial (colibacillosis) | 19 | 12000 | 59 | 4020 | 33.5 | 62.08 | 7450 | Viral (IB) | 20 | 10000 | 59 | 50 | 0.5 | 78.2 | 7820 | Normal |
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