L-lysine is a kind of amino acid, which can't be compounded automatically in the animal body. It is called growing amino acid. It has the function of increasing the practical utilities of feed, improving the meat quality and promoting the growth of animals.  The specification is as follows:  Item standard (% )  Appearance white or brown powder or granule without odor or with special product odor  Content c6h14n2o2. Hcl 98.5min  Specific rotation + 18.0-21.5  Loss on drying 1.0max  Residue after buring 0.3max  Ammonium salt (nh4) 0.04max  Heavy metal (pb) 0.003max  Arsenic (as) 0.0002max  Ph (10g / dl) 5.0-6.0  We will surely provide the customers with the above mentioned feed grade L-lysine at competitive price.  If you are intrested in the cooperation of this product, please contact us  Company:  Weifang Pingan Ruifeng Trading Co., Ltd.