Ambreen Sabir, Muhammad Zubair ul Hassan Arsalan, Tanveer Ahmed, Syed Makhdoom Hussain, Shafaqat Ali, Aumme Adeeba Bano, Muhammad Wasim Aslam, Huma Naz, Sadia Tabassum, Muhammad Amjad, Adan Naeem and Eman Naeem, 2026. Phytase as a Feed Additive: Impact on Growth, Nutrient Digestibility and Carcass Composition of Catla catla Fingerlings Fed on Different Plant By-Products Based Diets. Pakistan J. Zool., 58: 215-223 . DOI: https://dx.doi.org/10.17582/journal.pjz/20240730064447