Performance and Physiological Response of Chickens Supplemented with Dietary L-Glutamic Acid During the Late Phase of Egg Production

G lutamate or L-glutamic acid (Glu) plays a vital role in intestinal health through glutamine synthetase enzyme (D' Mello, 2003). Glu has a productive role as a main source of energy and maintaining of the intestinal barrier Glu mechanism has impact on endocrine system through transformation into arginine and ornithine thus stimulates secretion of insulin-like growth hormone and growth hormone Also, dietary Glu enhanced ovarian angiogenesis by elevating plasma arginine and nitric oxide concentrations and ultimately improved follicular development in the chickens