the aim of the current study was to evaluate the effects of the guanidinoacetic acid (gaa) supplement on the semen freezability of broiler breeder roosters. experiments were performed with twenty ross commercial strain broiler breeder roosters in four treatments and five repeats in a complete randomized design. roosters were fed a diet containing 0% (control), 0.06%, 0.12% and 0.18% gaa supplem...

Guanidinoacetic acid (GAA) is an amino derivative and precursor for creatine which plays a significant role in energy metabolism. However, because of creatine’s instability during the manufacturing process cost, GAA has been explored as effective alternative to supplements. tested potential feed additive enhance utilization growth performance poultry swine industries. Moreover, combined with me...

Gas chromatographic (GC) method has been developed for the determination of the guanidino compounds: guanidine (G), methylguanidine (MG), guanidinoacetic acid (GAA), guanidinopropionic acid (GPA), guanidinobutyric acid (GBA) and guanidinosuccinic acid (GSA) was carried out after precolumn derivatization with glyoxal and ethyl chloroformate from the column HP-5 (30 m × 0.32 mm i.d.) at 90°C for ...

This study explores whether guanidinoacetic acid (GAA) addition can regulate nutrient degradability, rumen fermentation characteristics, and gas composition in two sheep-fattening diets. A 2 × 8 factorial vitro culture was examined to determine the effects of GAA at following levels 0%, 0.03%, 0.05%, 0.07%, 0.09%, 0.11%, 0.13%, 0.15% total mixed rations (T1 diet: early fattening stage diet; T2 ...

Arginase deficiency is a rare autosomal recessive disorder resulting from a loss of the liver arginase isoform, arginase 1 (ARG1), which is the final step in the urea cycle for detoxifying ammonia. ARG1 deficiency leads to hyperargininemia, characterized by progressive neurological impairment, persistent growth retardation and infrequent episodes of hyperammonemia. Using the Cre/loxP-directed c...