Fahad Shahzad, Muhammad Tahir, Abdul Hafeez, Muhammad Shuaib, Muhammad Shahkar Uzair, Abdul Jabbar, Abubakar Sufyan, Muhammad Aamir Khan, Muhammad Ayaz, Hameed Ullah and Hammad Ullah, 2024. Effects of Dietary Protein Levels Enriched with Subtilisin Protease on the Performance and Nutrients Utilization of Broiler Chicks. Pakistan J. Zool., 56: 1101-1107. DOI: https://dx.doi.org/10.17582/journal.pjz/20220315140341