Virkon™ H2O Swine - Applications & Dosing Methods

SWINE DRINKING WATER APPLICATIONS

TERMINAL DISINFECTION

All water systems can potentially contain some viral and bacterial contamination, especially header tanks where dust and debris can accumulate. Water quality, especially those sources which originate from a borehole, may be highly variable in respect to the microbiological status.

 

Virkon™ H2O can be used for terminal disinfection of the drinking water system, as part of the ongoing biosecurity cleaning and disinfection programme.

 

TERMINAL DISINFECTION – HYGIENE FOR THE END OF THE PRODUCTION CYCLE

Operational Benefits

Any pathogen challenge from one production cycle can offer a risk to the following production cycle. To reduce this risk the water lines must be cleaned, cleared of biofilm and disinfected, including the evacuation of any water held in the drinking points/nipples. Virkon™ H2O has been proven to remove biofilm in a 4-hour period when applied at a concentration of 1% (1:100).

 

Direct Water Feed Dosing Systems

Virkon™ H2O is effective at a 1:800 to 1:1500 dilution rate and can be applied via a dosing unit connected to the drinking water system. For example, in order to achieve the required 1:1000 (1.0g/litre dilution) of Virkon™ H2O in the drinking water, a concentrated stock solution must be prepared and applied through a dosing unit set to add at either 1% or 2%.

 

Application methods

Virkon™ H2O is intended to be applied to swine drinking water during periods when there is a greater risk of pathogen challenge, and to assist in the reduction of biofilm build up, as described in the following table:

 

Facility Challenge Period - examples Application Period
Weaners and Growers During stress periods resulting from the process of weaning, grouping or movement, which often lead to reduced immunity and pathogen challenges. Use for 10-17 days after weaning and after mixing, plus around particular stress points in the production cycle.
Farrowing period During stress periods such as piglet treatments or when particular challenges appear (to support the piglet). Day 1 to day 30

Dilution rate

Virkon™ H2O is effective against bacteria* in the range of 1.25 g/litre (1:800) to 0.67 g/litre (1:1500). The dilution rate should be selected based on the water pH recorded at the drinker point after initial dosing of Virkon™ H2O. The target pH range when using Virkon™ H2O is between pH 5.0 and pH 6.5. Simple experimentation may therefore be required in order to determine the necessary dilution for your water conditions.

 

It is advised to start with a dilution of 1 g/litre (1:1000) and in cases where acidity is too high (e.g. pH <5.0), the concentration of Virkon™ H2O can be lowered to 0.67 g/litre (1:1500). Where acidity is too low (e.g. pH >6.5), the concentration of Virkon™ H2O can be increased up to 1.25 g/litre (1:800).

 

*In accordance with testing conducted according to European Standard EN 1276 (modified as per efficacy guidance for biocides intended for use in animal drinking water), in high soil conditions (15 mg/L Dissolved Organic Carbon).

 

 

Preparation and use for continuous application periods

Virkon™ H2O can be applied to closed drinking water systems as a measured application to the reservoir/header tank, or via suitable dosing equipment attached directly to the incoming water supply, on a continuous basis over a the prescribed number of days.

 

Application via dosing equipment

It is advised to apply Virkon™ H2O via a dosing system set to an application rate of either 1% or 2%. In order to achieve the required dilution in the waterline, a concentrated stock solution of Virkon™ H2O must be prepared.

 

To prepare the stock solution, follow the steps shown below:

 

Terminal disinfection for the end of the production cycle

 

Any pathogen challenge from one production cycle can offer a risk to the following production cycle. To reduce this risk the water lines must be cleaned, cleared of biofilm and disinfected, including the evacuation of any water held in the drinking points/nipples. Virkon™ H2O has been proven to remove biofilm in a 4-hour period when applied at a concentration of 1% (1:100).

 

Use biocides safely. Always read the label and product information before use.

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