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

Abstract

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 (Xiao et al., 2016). Glu mechanism has impact on endocrine system through transformation into arginine and ornithine thus stimulates secretion of insulin-like growth hormone and growth hormone ( Jazideh et al., 2014). Also, dietary Glu enhanced ovarian angiogenesis by elevating plasma arginine and nitric oxide concentrations and ultimately improved follicular development in the chickens (Ma et al., 2020).