Abd El-Nasser Ahmed Mohammed, Tarek Al-Shaheen, Mohammed Al-Saiady and Ahmed El-Waziry, 2024. Effect of Dietary Source of Omega-3 Fatty Acids on Milk Production, Fatty Acid Profiles and IGF-1 of Lactating Dairy Cows in Arid Subtropics. Pakistan J. Zool., 56: 2319-2326. DOI: https://dx.doi.org/10.17582/journal.pjz/20231210172024