Biosecurity maintains flock health
Understanding the risks
The first step in creating and implementing a successful biosecurity programme is to understand the risks. Biosecurity is risk management and there will always be a balance between cost and biosecurity interventions. Therefore, a risk assessment will help develop a targeted programme to limit or eliminate the introduction of
Tdisease to the birds.
Maintaining good flock health
o understand the risks it’s important to know what avian species are on your door step - the disease pressures. This can be commercial poultry sites, backyard chickens or local attractions such as open water sources that attract large wild bird populations.
Keep tight control on visitors
Make it clear that in the interests of flock health, strict biosecurity measures are followed. All gates to the farm or enterprise should be locked, with instructions for any visitor to contact the site manager before entry to the site. Make sure all visitors have
a genuine purpose to attend the site. Get them to sign in a visitors’ book, stating the reason for their presence, and whether they have had contact with other poultry over the past 72 hours.
Showering on site
The best procedure is provide a shower and change of clothing and boots for all visitors as well as employees. More sites are adopting these good procedures.
Vehicles and equipment
Only essential vehicles and equipment should be permitted on to the farm. If vehicles have to enter, they should be thoroughly disinfected, paying close attention to the exterior, wheels, and wheel arches. Allowing tools and equipment on to the site should also be minimised, especially those that have been used on other farms. Equipment brought on to the farm should undergo disinfection.
Foot dips and boot changing
Too often foot dips are neglected with the water becoming contaminated with leaves and soil, and the disinfectant deactivated. Ideally, use a covered foot dip outside each house, measure the dilution rate accurately and change the solution every one to two days.
Alternatively, boot changing in the poultry house is a proven way of reducing disease challenges. This is easier to carry out using different coloured boots for inside and outside the chicken house. Secondly, a specific area should be defined, such as a physical barrier or a line on the floor, which will set the boundaries for using the outside and inside boots and limit any cross-contamination risks.
Guard against vermin and wild birds
Check baiting points for rats and mice every week, and make sure the housing is vermin proof. Pay special attention to worn door seals, vents and drain holes. Keep the grass closely mown. Avoid feed spills; a cyclone is much better than a sock to cover the feed exhaust pipe. And cut any overhanging trees or branches to discourage wild birds.
Biosecurity is only effective if it applies to everyone all the time. Creating a biosecurity culture is critical to achieve buy-in from staff - ensuring for example that boots are dipped and hand sanitisers used every time. Continual training of staff around the critical control points and explaining their significance is a vital part of any biosecurity programme.
Quality people make the difference
The importance of competent, proactive people managing the birds cannot be underestimated. The management techniques are meaningless if the person responsible for the birds doesn’t have the correct skill set to get the most out of the flock.