Why do NaturalCheck tests focus on trenbolone and zeranol?
NaturalCheck Growth Hormone Tests can detect the two most commonly used artificial hormones in beef – trenbolone and zeranol. While artificial hormones may be detected through testing, use of naturally occurring growth hormones is almost impossible to distinguish from natural levels. NaturalCheck currently has no tests for the artificial growth hormones melengestrol (MGA) or diethylstilbestrol (DES) as these are used infrequently in world markets. Users of MGA generally also use trenbolone or zeranol, so screening for these two hormones provides an indirect screen for MGA. A recent study shows some use of DES in Turkey. We will consider developing tests for MGA and DES based on customer feedback.
