By Day 24, flock biomass crosses 20 kg per square meter of floor space. Heavy broilers occupy substantial floor area, restricting micro-airflow between birds. Uneven flock distribution causes localized crowding where temperatures spike 3–4°C higher than ambient shed sensors.
Crowding at feeder pans restricts weaker or intermediate birds from feeding, degrading flock uniformity (CV% > 10%). Floor clustering also leads to breast blisters, scratch marks, and hot pockets that trigger sudden mortality.
•Keeping partial house brooding curtains or barriers in place too long, artificially crowding heavy 1.3kg birds into restricted floor space.
•Setting feeder pans too high, forcing shorter birds to stretch and hop, resulting in feed spillage and uneven intake.
•Allowing bright light beams through curtain gaps or side doors, triggering violent piling in shaded corners.
•Neglecting dead air zones behind structural posts or baffle curtains where birds overheat and suffocate.
•High floor biomass increases contact pressure between bird skin and litter. Wet or compacted litter combined with high density rapidly causes focal ulcerative dermatitis (breast blisters and hock burn). Maintain dry litter at all costs.
•Clinical escalation trigger: If hock burn or pododermatitis prevalence exceeds 8% during sample audits, or if lameness prevents birds from walking to drinkers, call the veterinarian for flock mobility scoring and litter management audit.
•When you walk the house, birds should part smoothly like water around a boat and settle back down calmly behind you. If they stampede or fly in panic, your lighting is too bright or they are overcrowded.
•Always check that the last feeder pan at the end of the auger line has a properly functioning sensor switch to ensure all upstream pans stay full.
By Day 24, target density should be 20–24 kg of live weight per square meter (approx. 15–18 birds/m² for 1.3kg birds), depending on shed ventilation capacity. Tunnel-ventilated sheds with 2.0 m/s air speed can support up to 34–38 kg/m² at final harvest, but only if bird distribution is completely uniform.
Weigh a minimum of 50–60 birds individually from three distinct house zones. Calculate the average weight and the standard deviation. Coefficient of Variation (CV%) = (Standard Deviation ÷ Average Weight) × 100. A CV under 8% is excellent, 8–10% is good, and >10% requires immediate feeder and space adjustments.
Birds avoid the center when air speed is insufficient or when ceiling heat radiates downward into the middle. Check that ceiling insulation is intact and verify that inlet air jets are throwing air to the shed center rather than dropping immediately down side walls.
Tomorrow, your operation reaches Day 25. The primary management objective will be:
Execute a smooth 48-hour feed transition to Finisher pellet (higher energy, lower protein), hit 1,425g body weight (+75g gain), and prevent digestive upsets or loose droppings.
📈Growth & Feed Conversion Calculators
Calculate FCR, Feed Intake & Batch Profit
Benchmark your flock's live feed conversion ratio against standard commercial breed targets and audit final contract growing charge earnings.
