Optimizing growth: A starter ration study for

Poultry nutrient requirements are significantly influenced by both growth stage and breed. Additionally, housing systems impact performance. However, specific starter ration guidelines and appropriate housing systems are lacking for the IPB D-1 chicken, a hybrid combining 75% local and 25% broiler genetics. This critical period demands protein-rich diets to achieve optimal growth. To address this gap, a study was conducted to investigate the impact of varying protein levels (22% and 20%) in starter rations for unsexed, day-old IPB D-1 chicks (n = 400). The chicks were divided into two dietary groups and housed in open and semi-closed housing systems (10 replicates of 10 chicks each). Feed and water were provided ad libitum for 2 weeks, and monitoring of feed intake, weight gain, and feed conversion ratio (FCR) was performed. Chicks fed the 22% protein diet displayed significantly higher (P<0.05) feed intake and weight gain compared to the 20% group. Additionally, a noticeably improved FCR was observed. Housing type significantly affects (P<0.05) these measured parameters, with the semi-closed housing system being superior. This study highlights the enhanced response of IPB D-1 chicks during the starter phase to a higher protein content ration and a semi-closed housing system.