Chicken Farming

It takes about 21 days for a chicken to hatch. For it to be successful, it is crucial that the surroundings are controlled during that time. Egg hatching farms transform the chickens into either egg-laying hens or “broilers” (i.e. meat chickens). Meat from egg hatching farms is the most consumed worldwide. 


Why measure CO2 in chicken farms?


  • Less staff required to run the breeding stations, due to all eggs hatching around the same time. Easier to plan shipments and know how many birds can be transported at a time. This results in less capital and transport costs. 
  • A smaller number of birds die during transportation, which delivers more profit per shipment and less feed losses. 
  • More efficient and cheaper feeding options, both through feed reduction and reduction in time. 
  • Faster and easier to slaughter the animals using CO₂, and no unnecessary suffering for the birds. 
  • Packing method using CO, so food will last longer in supermarkets and for customers once purchased. This means a reduction of food that is discarded due to passed expiration dates.

How does it work?

The fertilised eggs are placed in a chamber or machine, which then regulates the CO content depending on what stage of development the eggs are in. The eggs that are viable contribute to the production of CO, which means that the CO levels must be monitored continuously. It has been shown that during embryonic development, the supply of CO can have positive health effects. 

Control of CO in the chicken’s development has also led to more controlled hatching time. The reason for this is the increased CO concentration inside the egg, which contributes to fully developed chickens hatching. 

Once the eggs are hatched, they are shipped off in trucks, where the birds continue to develop during transportation. To be able to manage them, and for them to stay healthy during their time in transportation, CO is controlled during the whole journey. 

It has been found that the bird’s metabolism works slower at higher concentrations of CO, which means it takes less time and less food to raise broilers and egg-laying hens. That makes production cheaper for the companies involved and more sustainable by using less feed per pound of chicken. 

The chickens are then euthanized using high levels of CO, which only takes a few seconds. This method is more humane than slaughter by electrical stunning. Sustainability of the meat increases by 20% when using CO for modified atmosphere processing. 

Key Benefits:

  • Less staff
  • Reduced losses
  • More efficient and cost-effective
  • Faster and easier and more humane to slaughter
  • Longer shelf life