The Kernel Beta-Agonist ELISA Test Kits is a competitive enzyme immunoassay for the quantitative analysis of clenbuterol, ractopamine, salbutamol, bitolterol, carbuterol and other related beta-agonists in feed, meat, liver, kidney, milk and urine. 

Beta-agonists can improve the meat-to-fat ratio in fattened animals and accelerate livestock growth. They also have a relaxing effect on non-striated musculature and can be used as antiasthmatic and tocolytic agents in human beings. Therefore, excess beta-agonist residues in livestock products may lead to health risks for consumers.