(1)
Hamid , I. I. Investigations into the Addition of Herbal Methionine (Phytonin) As a Substitute of Synthetic Methionine in Poultry Feeds 1-Effect of Herbal Methionine (Phytonin) Supplementation on Performance and Egg Quality of Laying Hens. Int. J. Poult. Sci. 2014, 13 (8), 480–483. https://doi.org/10.3923/ijps.2014.480.483.