TY - JOUR
T1 - Changes in free amino acids in the brain during embryonic development in layer and broiler chickens
AU - Sato, M.
AU - Tomonaga, S.
AU - Denbow, D. M.
AU - Furuse, M.
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research from Japan Society for the Promotion of Science (No. 18208023). This work was supported by a Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists (No. 19-8676).
PY - 2009/2
Y1 - 2009/2
N2 - Developmental changes in the levels of the excitatory amino acids l-glutamate (Glu) and l-Aspartate (Asp) and inhibitory amino acids glycine (Gly) and γ-amino butyric acid (GABA), as well as taurine and its related amino acids l-methionine (Met), l-cysteine (Cys) and l-serine (Ser) in the brain and pectoralis muscle at various embryonic stages and hatch in broiler and layer type chickens were determined. Brain concentrations of Asp, GABA and taurine were higher than those in the muscle, but the difference in the two types was small. The concentrations of the precursors of taurine including Met, Cys and Ser were lower than that of taurine. In conclusion, the synthesis of some amino acids and their metabolites such as Asp, GABA and taurine in the chick embryo is very high in order to support brain development.
AB - Developmental changes in the levels of the excitatory amino acids l-glutamate (Glu) and l-Aspartate (Asp) and inhibitory amino acids glycine (Gly) and γ-amino butyric acid (GABA), as well as taurine and its related amino acids l-methionine (Met), l-cysteine (Cys) and l-serine (Ser) in the brain and pectoralis muscle at various embryonic stages and hatch in broiler and layer type chickens were determined. Brain concentrations of Asp, GABA and taurine were higher than those in the muscle, but the difference in the two types was small. The concentrations of the precursors of taurine including Met, Cys and Ser were lower than that of taurine. In conclusion, the synthesis of some amino acids and their metabolites such as Asp, GABA and taurine in the chick embryo is very high in order to support brain development.
UR - http://www.scopus.com/inward/record.url?scp=59449091379&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=59449091379&partnerID=8YFLogxK
U2 - 10.1007/s00726-008-0068-z
DO - 10.1007/s00726-008-0068-z
M3 - Article
C2 - 18389170
AN - SCOPUS:59449091379
SN - 0939-4451
VL - 36
SP - 303
EP - 308
JO - Amino Acids
JF - Amino Acids
IS - 2
ER -