From: Lighting during grow-out and Salmonella in broiler flocks
Parameter/its association with the outcome | |||||
---|---|---|---|---|---|
Outcome sample type | n | Parameter | Mean (range) | OR (Wald-type 95% CI) | P |
Feathered carcass rinsates 1 week before the end of rearing | 58 | 10% increase of the hours of full lights during grow-out | 25.5% (6.5%-81.2%) | 1.38 (0.98, 1.95) | 0.061 |
58 | 10% increase of the hours of black-out during grow-out | 12.4% (0%-23.9%) | 0.32 (0.09, 1.05) | 0.060 | |
Post-harvest drag swabs of litter from grow-out house | 50 | Day of grow-out when dim lights for ≥18 hours per day started | 15 (3-29) | 0.89 (0.78, 1.01) | 0.065 |
Feathered carcass rinsates at arrival for processing | 50 | Day of grow-out when dim lights for ≥18 hours per day started | 15 (3-29) | 0.93 (0.85, 1.01) | 0.098 |
Post-chilling carcass rinsates | 54 | 10% increase of the hours of full lights during grow-out | 25.5% (6.5%-81.2%) | 1.31 (0.99, 1.74) | 0.062 |
54 | 10% increase of the hours of dim lights during grow-out | 62.1% (3.2%-77.8%) | 0.77 (0.56, 1.05) | 0.091 |