Efficient ventilation for your poultry farms
How efficient is your ventilation? As our European client’s head into summer and the outside temperature rises it is vital to health of your birds that the ventilation and temperature is monitored efficiently to reduce the risks from heat stress. Effective ventilation is a crucial element to your broiler production and bird welfare. You should be aiming to avoid putting undue stress on the birds with adequate ventilation and air exchange rates maintaining air quality and avoiding heat stress.
Aside from age of the bird the biggest influence on air quality inside the poultry house are the conditions outside. The conditions the birds experience during the hot summer temperature must be controlled by the ventilation system whatever the conditions outside. However, it is not just about temperature regulation as the birds feel thermal comfort based on temperature, humidity and air flow rates, so all of these must be considered.
Whichever ventilation system you are using it needs to not only ensures adequate air exchange throughout the poultry house, but also remove excess moisture from the litter, maintain oxygen levels, reduce carbon dioxide levels, and regulate temperature within the house.
As an example, in the UK the current guidelines are that each poultry house has a ventilation system that:
- keeps the concentration of ammonia (NH3) below 20 parts per million (ppm), measured at the level of the chickens’ heads
- keeps the concentration of carbon dioxide (CO2) below 3,000ppm, measured at the level of the chickens’ heads
- when the outside temperature measured in the shade is over 30C, the inside temperature is never more than 3C warmer
- keeps the average relative humidity inside the house over any 48 hour period below 70% when the outside temperature is below 10C
These are just the minimum requirements but at OPTIfarm we look at providing the best air quality and provide the best environment possible for bird welfare, health and production.
We monitor your equipment and analyse data collected on temperature and air quality. As we visit the farm every 90 minutes our real time data collection is proving to be invaluable, we are able to intervene before any early warning signs of anything awry. We monitor key indicators such as changes in water, feed intakes and bird spread. Many aspects can lead to an investigation of the ventilation system.
The above graph shows a correlation between the ventilation and feed, the tunnel vent system was disturbing the birds away from the end feed pans housing the automatic feeding sensor which resulted in periods of feed outages. The team was able to quickly act on this data derived information and following immediate client consultation OPTIfarm was requested to remotely adjust the settings at the farm and the issue was resolved immediately. A positive outcome for the birds and the client immediately with no delays.
What happens when the outside temperature rises? To lose body heat birds pant allowing moisture to evaporate from the lungs (similar to dogs) but this physiological mechanism requires abundant fresh, dry air entering the birds lungs so that the moisture can be transpired then expelled by the birds as they exhale. So, when temperatures exceed 25°C with relative humidity’s of over 60% for example in a UK summer, it is important to deliver as much fresh air at bird height as possible, thus constantly removing moisture exhaled by the birds. To allow this in a positive vented house with air inlets and extraction fans the setting of inlets is as important as the settings of the fans.
Air inlets should allow not only the high volumes of air into the house but they must control direction of the air flow and the control the internal pressure of the house to ensure the fresh air reaches all the areas of the house, including corners, at the birds head height.
In more extreme climates globally the OPTIfarm service is often assessing and advising on highly sophisticated environmental controls equipment and very specific technical management. What better than the extensive experience and knowledge of the OPTIfarm technical team remotely checking your farm 24 hours per day to give you that added peace of mind, plus save you time and money.
Ventilation control systems and equipment are an investment and should be used to their full potential. This is not always easy or simple as modern ventilation systems become more sophisticated and complicated. OPTIfarm will ensure your poultry facilities are optimised to a very exacting standard today, tomorrow and every day.
Working in conjunction with the major ventilation equipment manufacturers around the world OPTIfarm is uniquely able to support you in maximising the potential of your ventilation systems. Our experienced technicians will be looking on your behalf to constantly fine-tune settings and systems and help spot potential problems before they materialise.
OPTIfarm is a global support service focused on working for you to ensure you can maintain good performance and welfare of your birds and allow you that extra piece of mind.