Overview & Core Concepts
On Day 34, broilers reach ~2,325g and stand on the brink of harvest. Handling and pre-slaughter management directly impact carcass quality, meat yield, and processing hygiene. Feed withdrawal must be calculated precisely: 8 to 12 hours total between feed removal and slaughter. Too short a withdrawal leaves feed in the digestive tract, risking crop and gut rupture and fecal contamination on the evisceration line; too long a withdrawal (>14 hours) causes gut wall thinning, gallbladder leakage, and significant live-weight shrink (loss of 0.25-0.4% body weight per hour). Farmers must also dim lights and organize catching gear to eliminate panic.
Key Performance Indicators (KPIs)
Achieving optimal management targets requires strict adherence to environmental parameters.
Why This Matters
Bruising, broken wings, and scratches sustained in the final 24 hours cause immediate carcass downgrades at the processing plant. Precise feed withdrawal safeguards food safety while preventing live-weight shrink.
Execution Checklist
Observations & Key Indicators
Observe spacing, activity levels, and physical indicators:
Healthy Signs
- Flock remaining calm, resting peacefully under dimmed lighting without panic or hysteria.
- Continuous, quiet drinking from raised water lines during the initial feed withdrawal phase.
- Even bird distribution inside partitioned catching pens with zero crowding in corners.
- Clean, unblemished skin and breast feathering free of fresh scratches, red bruises, or hematomas.
Warning Signs
- Flock hysteria or stampeding caused by sudden loud noises, flashlight beams, or aggressive shed entry.
- Birds piling into corners or against side walls (risk of mass suffocation and smothering mortality).
- Feed withdrawal extending beyond 12 hours before catching even starts, causing watery yellow droppings and weight shrink.
- Water lines raised out of bird reach during feed withdrawal, causing rapid dehydration and elevated carcass shrink.
Troubleshooting & Management Practices
Frequently Asked Questions
Related Resources
- Broiler Finisher Feed Standards
- Heat Stress Management & THI Index
- Harvest, Settlement & Batch Economics
Next Stage Handoff (Day 35)
Tomorrow, your operation reaches Day 35. The primary management objective will be:
Safely harvest 20–30% of market-ready heavy birds (2.4–2.5kg), maintain strict biosecurity, and stabilize the remaining flock for extended growth.