Figure 2 - Remanence action (log4) of Kenofix against Streptococcus cuis for at least four days.
Log reduction 5
4 3 2 1 0
T0 5 min1 hr 3 hrs 6 hrs1 day 2 days 3 days 4 days 5 days
Table 1 - Efficacy of the disinfectant spray against bacteria which are present in the pig house.
%
Staphylococcus aureus Proteus vulgaris Enterococcus hirae Streptococcus suis
40% 20% 20% 20%
Pseudomonas aeruginosa 20% creates a strong and flexible film acorss the skin ensuring physical protection from the
Contact time 5’ 5’ 5’ 5’ 5’
Log reduction >5,06 >5,52 >5,53 >5,21 >5,53
In accordance to the standard EN 1656:2009, Kenofix presents already a bactericidal activity when dilut- ed at 1/5th of the RTU concentrate
upside down. Furthermore the 2 phase-propellant system ensures no pressure difference inside the can when it is either empty or full. This brings yet another two major advantages for the user: The spray-can can be emptied completely and the output (consumption) when sprayed is always the same, from a full to empty can. This makes it economical in use. The active ingredient in the product is clorocresol. It guaran- tees a very strong and fast bactericidal, virucidal and fungicidal activity. The product has demonstrated its efficacy according to the European norm EN1656 which validates a bactericidal activity towards Staphylococcus aureus, Enterococcus hirae, Streptococcus suis, Pseudomonas aeruginosa and Proteus vulgar- is. (see Table 1). Furthermore it has also shown fungicidal activity according to the European norm EN1756.
Second skin technology The biggest challenge for skin disinfectant products is to have the ability to disinfect and protect the wounded skin in real farm conditions. This means that the disinfected skin should maintain that status for as long as possible and be protected from the environment where the piglets are confined. This is where most of the ‘old-school’ skin disinfectants fail. They dis- infect but don’t protect. Without this protection the efficacy of the skin disinfection will be very short because of the reintro- duction of the treated animal in dirty conditions, where rein- fection will occur.
To overcome this difficulty, a unique second-skin-technology has been incorporated into the product. The copolymers of the high quality plasticizer create a strong and flexible film on the skin. Hence the name ‘second skin technology’ as it operates like a bandage. This plastifier makes the film flexible and keeps it intact on the skin for a few days. The film forming agent has a good skin adhesion and dries very fast. This is very important when treating piglets as it is necessary to have a product that dries fast so that it will not be rubbed off. The dry film will also have no outward stickiness. Once the film is dry it is not soluble in water which ensures that it will stay as long as possible on the skin. This second skin technology ensures an abrasion resistance film and a real physical protection from the environment.
Prolonged release of biocidal substance The biocidal substance is captured in the film. There it migrates towards the skin. This process will take place for at least 4 to 5 days. This remnant (residual) effect is demonstrated according to norm ISO22196. So the instant disinfection takes place directly after the product is applied and while it is still wet. Very soon the film dries and from that moment on the biocidal activity is further assured for at least four days (see Figure 2) when the disinfectant gets released slowly from the film. Furthermore the film is permeable for oxygen, allowing the skin to breathe which aids recovery.
PIGLETS - JULY/AUGUST 2016 39
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