Broiler Not Gaining Weight? 8 Reasons and Proven Supplement Solutions
Feed cost makes up over half of broiler production expenses, so every day of slow weight gain cuts into your profit. Here are 8 common reasons broilers fall short of market weight, and how to fix each.
1. Poor Chick Quality
Weak hatchery stock and poor brooding in week one often cause growth that never catches up. Solution: Buy from a trusted hatchery and prioritize brooding temperature and early feed access.
2. Imbalanced Feed
Low protein, poor amino acid balance, or mycotoxin contamination are top causes of stunted growth. Solution: Use age-correct starter, grower, and finisher feeds and store feed dry.
3. Poor Gut Health
Coccidiosis and weak gut flora silently reduce feed conversion. Solution: Support digestion with Liv-O-Rich, which aids liver function so birds convert feed into weight more efficiently.
4. Disease Challenges
Newcastle disease, Gumboro, and mycoplasma suppress appetite and divert energy from growth. Solution: Maintain a strict vaccination schedule and biosecurity.
5. Heat Stress & Poor Ventilation
Heat cuts feed intake; high ammonia worsens it. Solution: Improve airflow and cooling. See our post on Heat Stress Management in Broilers.
6. Overcrowding
Poor stocking density raises competition for feed and stress. Solution: Follow recommended floor space per bird with adequate feeders/drinkers.
7. Mineral & Vitamin Gaps
Deficiencies in calcium, phosphorus, and trace minerals cap growth potential. Solution: Vitakrome C balances vitamins and minerals for consistent daily weight gain.
8. No Dedicated Growth Supplement
Standard feed alone rarely pushes birds to their genetic growth ceiling. Solution: Chickgro boosts feed conversion and supports faster, uniform weight gain in broilers — antibiotic-free.
Broiler Weight Chart by Week
Here's a quick reference for target body weight at each stage of growth: by the end of week 1, broilers should weigh around 150–180 g. By week 2, target weight rises to 400–450 g, and by week 3, birds should reach 750–850 g. Moving into week 4, expect a weight of 1.1–1.3 kg, followed by 1.5–1.8 kg in week 5. By week 6, broilers typically reach market weight of 2.0–2.3 kg.
FAQs
Q: How do I quickly diagnose the cause? Check feed intake, shed conditions (heat, ammonia, crowding), and flock uniformity.
Q: Can supplements alone fix it? No — they work best with good ventilation, stocking density, and vaccination practices.
Q: When should I start a growth supplement? From the starter phase, since early weeks set the entire growth curve.
Final Word
Broiler weight gain issues usually stem from a mix of feed, environment, health, and nutrition gaps. Fixing the right ones with proper management and poultry supplements — Chickgro, Vitakrome C, and Liv-O-Rich — gets your flock back on target fast.
