[Content of N-acetyl-alpha-l-aspartyl-l-glutamate in bird brain in ontogenesis and under hyperoxia].

Distribution of N-acetyl-alpha-l-glutaminic peptide (NAAG) and N-acetyl-l-aspartic acid (NAAA) in brain of different age chickens was studied in norm and under hyperoxia. The content of NAAG in the chicken brain during the first four weeks of life is more than 6 times as high and that of NAAA-4.3 times as high as their level in newborns. After the effect of a high pressure of oxygen (3.25 atm. on birds for 60 min) the content of NAAG lowers considerably in the brain of 14-, 21- and 30-day chickens, that of NAAA in them increases.