The decision about age of beak trimming depends mostly on the housing system: for production in
open-sided houses, giving exposure to high natural light intensity, one single beak tipping at 10 days
will not prevent pecking entirely. If done too severely at that age, it will lead to a reduction in growth
rate and uniformity. Under these conditions, beak trimming should be carried out twice: a light tipping
at 10 days and then a second operation between 8 and 10 weeks of age.