Skeleton, muscles and growth: why a broiler grows so fast, and what it costs its legs
A broiler chick weighs 40 to 45 g on day one and 2 to 2.5 kg at 35 days: it has multiplied its weight by 50 in five weeks. No other farm animal does that. This speed is an opportunity for the farmer, but it has a price that the bird's body pays: bones that do not have time to harden, a heart that works at its limit. Understanding this mechanism means understanding why we weigh, why we watch the litter, why we respect stocking density.
12 min read · 5-question quiz at the end
By Abdul Hussein ChoumanFounder of NEXTEKCI · Agnibilékrou hatchery since 2006Lesson reserved for students following the steps
This lesson is part of Level 6 — The bird: anatomy, physiology, behaviour. It opens to registered students who have passed the level 5 exam. Levels 1 to 5 and the tracks remain readable by everyone.
What you will learn
- ✓Explain how a chicken bone grows and why it stays fragile throughout the flock
- ✓Recognise the three main leg and heart problems linked to fast growth, and their farm causes
- ✓Calculate a daily weight gain and know what it says about the pace of growth
- ✓Apply the actions that protect legs and heart: litter, density, light, weighing