Summary
Abstract
Spraying slightly acidic electrolyzed water (SAEW) has been considered as a potential approach to reduce airborne bacteria in laying-hen houses. In this study, the effects of spraying SAEW on airborne bacterial reduction were investigated in a laying-hen house as compared with using diluted didecyl dimethyl ammonium bromide (DDAB). Averaged air temperature reduced by approximate 1 C and average relative humidity increased by 3% at a stable ventilation rate (about 2.5 m3 hr 1 per bird) in the laying-hen house 30 min after spraying (120 mL m 2). Compared with the control without spraying, the airborne bacterial concentration was reduced by about 0.70 and 0.37 log10 colony-forming units (CFU) m 3 in the 4 hr after spraying 120 mL m 2 SAEW (available chlorine concentration [ACC] of 156 mg L 1) and diluted DDAB (active compound concentration of 167 mg L 1), respectively. Compared with spraying diluted DDAB, spraying SAEW was determined to be more effective for reducing airborne bacterial in laying-hen houses. The effects of spraying SAEW and diluted DDAB on airborne bacterial reduction in the laying-hen house increased with the increasing available chlorine concentrations for SAEW (156, 206, 262 mg L 1) and increasing active compound concentrations for diluted DDAB (167, 333, 500 mg L 1), respectively. Spraying SAEW and diluted DDAB with two levels of spraying volumes (120 and 90 mL m 2) both showed significant differences on airborne bacterial reduction in the laying-hen house (P
Study details
- Published in: Journal of the Air & Waste Management Association 63.10 (2013): 1205-1211
- Microbes studied: Total Microbial Count
Source
Source: Journal of the Air & Waste Management Association 63.10 (2013): 1205-1211
Conditions tested
| Parameter | Value |
|---|---|
| Organisms | Total microbial count |
| Relevant sectors | Livestock |
| Publication | Journal of the Air & Waste Management Association, 2013 |
Reading this responsibly
Published figures are obtained under controlled conditions, usually on clean surfaces or in defined matrices. Organic load, surface condition, temperature and application coverage all affect real-world performance. Use these numbers to design a protocol, then validate it on your own site with environmental swabbing.
Applying it
Concentrations in this range are within the adjustable output of every EcoloxTech commercial system, so implementing this protocol is a settings question rather than a procurement one. Where the claim needs to sit on a registered label, see HOCl-AS200, EPA Reg. No. 101112-1.