Eli5: how can egg hen lay egg EVERY day? Isn’t the processus of making eggs extremely needing in terms of energy?

Question

An egg weights about 60g in average, and a hen 3kg, how the hen can produce every day something about 2% of it’s weight like this? Which kind of metabolism the hen have to achieve this?

In: 32

Answer 1

Chickens come from birds who had a special ability to multiply very very quickly when given enough food to do so. This was because their food supply was inconsitent(bamboo sprouts every like 10 years or some shit). This mechanism is what have used to make chicken grow and lay eggs super fast. Obviously chickens do need energy to do this, so chickens eat way more than most animals per bodymass.