Since only female chickens lay eggs, male chicks who have no commercial value to the egg industry are routinely gassed or 'macerated' (ground up alive). As a result, every year some 12 million male chicks are killed in the first day of their lives as waste products of the Australian egg industry.
Another common concern is the slaughter of layer hens years short of their natural life span. Hens will naturally live for around 10 years, but most layer hens in Australia are sent to slaughter as soon as they exceed their productive 'use by date'.
In all egg production systems, from cage to free range, hens are considered 'spent' from just 18 months old. Occasionally however, if it's deemed commercially viable, hens in free-range systems will be kept on for another season which would extend their life for around 12 months — still well short of what nature intended.
Eggs whites are a great source of protein and I have to admit, my Sunday morning egg white pancake with cinnamon apples is a highlight of the weekend however after learning a bit more from AnimalsAustralia on the egg trade....I'll be checking out egg alternatives. How about you?