Availability of sulphur amino acids in protein foods

Lipid supplementation of laying hen diets deficient in protein and sulphur amino acids

Response of layers fed on diets dificient in protein and sulphur amino acids supplemented with lipid

Response of laying hens to supplementation with various fatty acids when fed diets inadequate in protein and sulphur amino acids

Availability of amino acids in vivo.

It has been known for many years that free amino acids are present in the blood and that their concentration increases after ingestion of a meal. In 1912 Van Slyke and Meyer (1) reported the presence of amino nitrogen in the non-protein fraction of the blood of dogs and that its concentra,tion increased after feeding meat. Abel et al. (2), using a vivi-diffusion apparatus, observed that free am...

The biochemistry and pharmacology of excitatory sulphur-containing amino acids.

1,-Glutamate is now well established as the predominant transmitter at fast-acting excitatory synapses in the mammalian central nervous system. Other amino acids such as L-aspartate and several acidic sulphur-containing amino acids (SAAs) which exhibit potent depolarizing actions similar to that of Lglutamate [I-31 are known to exist in the brain and/or are present in the brain under pathologic...