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Based on the biology and growth characteristics of black phoenix chickens, they can be classified as broiler chickens between 7 to 25 weeks of age.
At around 6 weeks old, black chickens begin to shed their downy feathers and grow silky plumage. This type of feather has poor insulation properties, making them more vulnerable to temperature changes. By about 9 weeks, their thermoregulation abilities improve, allowing them to gradually adjust to ambient temperatures. During this time, daytime temperatures can be reduced, but evening warmth is still necessary to maintain their health.
Before moving the chickens into the rearing area, it's essential to thoroughly disinfect the room, feeders, and waterers. Prepare appropriate feed, bedding, and medications in advance. Organize labor to sort the chickens by size, strength, and gender for better management. Grouping should be done carefully to ensure uniformity and ease of care.
This stage is crucial for bone and muscle development. Providing sufficient space for movement helps the chickens build strong bodies. Under floor-rearing conditions, the recommended stocking densities are 15 per square meter for 9–13 weeks, 10 per square meter for 14–17 weeks, and 7 per square meter for 18–25 weeks.
Light exposure should be strictly controlled during the rearing period, with a recommended duration of 8–10 hours daily. This helps regulate their biological rhythms and supports healthy growth.
Feed restriction plays a vital role in managing weight, which directly affects future egg production. During this phase, reduce energy and protein levels in the diet while increasing the proportion of bran and green feed. Ensure that feeding equipment is sufficient, and feed distribution is fast and efficient so that every chicken gets enough food. Regular weigh-ins are essential—target weights include 750g at 90 days, 900g at 120 days, 1100g at 150 days, and 1250g at 180 days. Weigh every 10% of the flock every two weeks. If the average weight is below standard, increase feeding; otherwise, reduce the number of feedings.
Maintaining a clean and quiet environment both inside and outside the housing is critical. A stable and stress-free atmosphere promotes better health and growth in black phoenix chickens.