Table 2 Overview of the mortality, productivity, and study population of the progeny
General | Flock mortality | Productivity | Birds included in the study | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Farm | Flock size | Bird/m2 | Mortality, total (%) | Mortality, first week (%) | Total no. of dead birds | Feed conversion | Slaughter weight, average (g) | Slaughter condemnation (%) | Total no. of birds for post-mortem examination | No. of birds sampled for bacteriology | No. of Escherichia coli isolates subjected to genome sequencing |
Progeny A | 31,700 | 41.2 | 1.50 | 0.55 | 476 | 1.50 | 2140 | 0.7 | 54 | 54 | 5 |
Progeny B | 27,000 | 41.7 | 1.31 | 0.52 | 415 | 1.47 | 2193 | 0.6 | 52 | 51 | 11 |
Progeny C | 30,800 | 40.2 | 1.84 | 0.42 | 583 | 1.52 | 2148 | 0.6 | 48 | 48 | 12 |