Effects of Different Levels of Soybean Bioactive Peptides and Vitamin E on Performance, Egg Quality, and Serum Metabolites of Laying Hens. Int. J. Sci. Res [انترنت]. 15 ديسمبر، 2023 [وثق 3 يوليو، 2026];2(12). موجود في: https://vsrp.co.uk/index.php/ijsr/article/view/1264