Rapid Growth

Last updated 7 August 2020

Broiler chickens have been selectively bred and genetically manipulated over years to grow at a rate 300 times faster than that of birds bred in the 1960s, reaching 2.2 kilograms in just 35 days. Larger birds means more flesh to sell for profit. Consequently, broiler chickens experience several health complications that cause them needless suffering and pain.

Research conducted by the University of Arkansas found that broiler chickens grow at a rate that would see a two month old human baby weighing about 300kg or 660 pounds.

Not only have chickens been genetically modified, they are also exposed to artificial lighting for prolonged periods to further promote rapid growth through increased eating.