Hurmat Amjad, Shahid Mahmood, Ghulam Murtaza, Saira Fiaz, Zarqa Mubeen, Narjis Batool, Quratulann Riasat, Shabana Kousar and Farah Azam, 2026. The Nickel Paradox: Its Ambivalent Role in Poultry Nutrition: A Review of Essentiality and Toxicity. Pakistan J. Zool., 58: 2233-2250. 
DOI: https://dx.doi.org/10.17582/journal.pjz/20250228174017