Page 5 of articles about disinfection

The farms can be free from PRRS, enzootic pneumonia, atrophic rhinitis, pleuropneumonia, scabies, swine dysentery, and so on. However, why is it we are still unable to characterize farms as Salmonella-free?

Sudden death due to HBS is a devastating, stealthy phenomenon that affects pigs in growth and finishing phases. The heaviest animals die, sometimes a few over several days, or a few per week, but in a constant succession that can last (up to nine months in Italy’s case, where heavier animals are killed).

Any failure in a cleaning and disinfection programme costs money. This comes from the costs of the programme, the loss of its potential benefits and very probably the costs of disease the failure has allowed to occur. It is also very disappointing for the management and staff of the farm who have done the hard work, and the veterinarian who is trying to ensure healthy efficient production.

In previous articles we have discussed the need for good cleaning and disinfection, how to clean properly and how to disinfect. Now we come to the agents used, and it is vital to realise that the right choice of detergent and disinfectant is a pivotal part of any cleaning and disinfection programme.

In the last article we looked at the need for thorough complete cleaning of a building, room or equipment in any efficient biosecurity programme. If done properly this will reduce the pathogen burden hugely as shown by a typical reduction in bacterial counts by 99%.

It is much more difficult to achieve a good quality of cleaning if the surface you are trying to clean is particularly pervious to water (for example wood) and has many cracks and hidden areas.