Guanidine acetic acid is a functional promoter of glycine and its derivatives. It does not contain any prohibited drugs and is non-toxic. It is safe to use without a withdrawal period. Appearance shape: white or yellowish powder, the carrier will cause the appearance of color change, but does not affect the effect of the product. Mechanism of action Guanidine acetic acid is the precursor of creatine. Phosphocreatine, which contains high phosphate group transfer potential energy, exists widely in muscle and nerve tissue and is the main energy supply material in animal muscle tissue. The addition of guanidine acetic acid makes the body produce a large number of phosphate group transfer substances (phosphocreatine), which provides power for the efficient work of muscles, brain, gonads and other tissues and promotes the continuous distribution of energy to muscle tissues. 1. Improve animal body shape: creatine phosphocreatine exists in large quantities only in muscle and nerve tissue, but has little content in adipose tissue, so it can promote the transfer of energy to muscle tissue, and improve the body shape of lean pigs especially significantly, with wide back and plump buttocks. 2, promote the growth of livestock, poultry, fish and shrimp: guanidine acetic acid is the precursor of creatine, stable performance, high absorption rate, can promote more energy distribution to the synthesis of muscle tissue. The weight gain of livestock and poultry increased by more than 7%, and the growth rate of fish and shrimp increased by 8%. The use of guanidine acetic acid at the stage of 50-100kg can reduce the meat ratio by 0.2, advance the growth and fattening 7-10 days, and save more than 15kg of feed per pig. 3. Stable use and safety of the product: guanidine acetic acid is eventually metabolized out of the body by the animal body in the form of creatinine, and there is no residue in the body, which effectively overcomes the toxic side effects of many illegal drugs such as clenbuterol and has good safety. 4. Scavenging free radicals and improving flesh color: creatine supplementation can reduce the free radical production of mitochondria, and obtain better flesh color and muscle quality, accelerate the synthesis of ATP in muscles, and reduce heat stress reactions in animals during transportation and herd transfer. 5, improve the reproductive performance of breeding pigs: provide sufficient energy for the gonads, enhance the number of sperm in semen and sperm vitality.