... ,poultry,shrimp,eel and so L-Threonine(Feed Grade)SPECS:Loss on drying: 1.0% MaxResidues on ignition: 0.5 maxAssay: 98.5%minSpecific Rotation: -26.7 ... °~29.6°PH: 5.0-6.5Granular particle size distribution ... and the ammonia concentration is kept low in animal shed. Feed grade L-Threonine,l-lysine,amino acid