Monitoring the Growth of Parent Stock Chicks
The parent stock of broiler crosses demonstrates the same genetic growth characteristics as broiler flocks.
As the flock matures and live weight increases, feed rations must be adjusted to meet the birds’ growing nutritional needs.
Generally, if the ambient temperature is >20°C, parent stock females require at least 23,000 kcal of metabolizable energy (ME) on a cumulative basis and 1.2 kg of balanced protein by the age of 20 weeks. By 22 weeks, cumulative intake should reach at least 27,000 kcal ME and 1.4 kg of protein.
To verify whether feed rations are sufficient to achieve the target live weight, weekly sample weighing should be conducted. Additionally, it is important to observe the physical condition of hens and roosters as an indicator of proper growth and development. Live weight and physical condition data should be compared every 2–3 weeks before making any changes to the standard feeding program.
