Table 5.
Flock performance data for medicated and vaccinated flocks for which data were available.
| Prevention strategy | Mortality (%) | Days to market | Mean weight at market (kg) | FCR1 | Adjusted FCR (target 2.42 kg) | Condemnations (%) |
|---|---|---|---|---|---|---|
| Medicated | 3.55 ± 0.57 (n = 20) | 40.1 ± 0.86 (n = 20) | 2.53 ± 0.05 (n = 20) | 1.681 ± 0.023 (n = 19) | 1.693 ± 0.021 (n = 19) | 1.17 ± 0.15 (n = 19) |
| Vaccinated | 5.47 ± 0.67 (n = 18) | 38.04 ± 0.46 (n = 18) | 2.40 ± 0.06 (n = 18) | 1.694 ± 0.030 (n = 13) | 1.721 ± 0.03 (n = 13) | 0.98 ± 0.05 (n = 17) |
| P value | 0.0189 | 0.085 | 0.077 | 0.886 | 0.433 | 0.3696 |
Mean values ± SEM for flocks clustered by facility.
1
FCR refers to the unadjusted calculated feed conversion ratio based on feed consumption and the total flock weight (no. of chickens × average weight) at market.