How many birds per square foot is sensible in summer, winter and the shoulder months, and the signs you have overstocked.
Stocking density is how many birds you place per unit of floor space. It is a trade-off. More birds earn more per shed, but crowded birds grow slower, get sick more often and leave wetter litter. The right number changes with the season and with your ventilation.
Think in kilograms, not only birds
What the floor must carry is the weight at the end of the cycle. A shed that comfortably holds 5,000 birds sold at 1.6 kg may be badly overcrowded at 2.2 kg. Many farmers plan with final live weight per square foot, then work backward to the number of chicks.
Rules of thumb by season
- Peak summer (May to August): place fewer birds, often in the range of 0.7 to 0.8 square feet per bird at 2 kg, and rely on fans, cooling pads and early-morning feeding.
- Winter (December to February): you can place more, around 0.6 to 0.7 square feet per bird, as long as ventilation clears moisture and ammonia.
- Shoulder months (March to April, September to November): use a middle value and watch the weather forecast.
Treat these as starting points. Your shed design, fans, cooling and local advice from your vet or integrator should settle the final number.
Signs you are overstocked
- Birds panting with open beaks in the evening even after feeders are pulled
- Litter turning wet and caked around drinkers and under feeders
- Strong ammonia smell when you walk in
- Uneven flock, with many small birds that never catch up
- Rising deaths in the final week, especially from heat
Make space work harder
Give enough feeder and drinker space for the number of birds, because crowding at the feeder worsens uneven growth. Thin the flock earlier when summer heat builds in the last week. Selling a first load at 1.4 kg to 1.5 kg reduces density just when the heat is hardest, and the remaining birds do better.
Brooding density is different from finishing density. Chicks occupy a small part of the shed at first, and you open up the space as they grow. Do not confuse the two when you calculate.
Keep a record
Write down density, season, final weight, mortality and FCR for each batch. After a year you will have your own data on the density that gave the best profit per square foot in each season.