Effects of Dietary Protein Levels Enriched with Subtilisin Protease on the Performance and Nutrients Utilization of Broiler Chicks
Effects of Dietary Protein Levels Enriched with Subtilisin Protease on the Performance and Nutrients Utilization of Broiler Chicks
Fahad Shahzad1, Muhammad Tahir1, Abdul Hafeez2, Muhammad Shuaib2*, Muhammad Shahkar Uzair2, Abdul Jabbar3, Abubakar Sufyan4, Muhammad Aamir Khan5, Muhammad Ayaz5, Hameed Ullah5 and Hammad Ullah5
ABSTRACT
The study was conducted to investigate the effect of the minimum level of dietary protein and subtilisin protease enzyme on the performance and nutrient utilization in broiler chicks. Different levels of proteins with and without subtilisin protease enzyme were evaluated on the overall performance, carcass yield, and nutrient utilization. For this purpose, 3 proteins and 2 protease levels were arranged in a 3x2 factorial design and each group was divided into 4 replicates of 10 chicks each. All parameters were calculated significantly different. The interaction effect of (P21.5) and enzyme gave the highest feed intake and weight gain value among all the interactions. The highest crude protein was noted for protein level (P19.5) and maximum crude protein was obtained with enzyme treatment. Protein level (P19.5) and treatment having enzyme gave the highest AME. It was noticed that the lowest level of protein gave the highest FCR while the enzyme effect showed decreased FCR. The highest live weight, carcass weight, and carcass yield were recorded with the treatment having the highest level of dietary protein and enzyme. It is concluded that dietary protein in combination with subtilisin protease enzyme has a positive effect on the overall performance and nutrient utilization in the broiler.
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