Comparing Effect of L-Lysine-HCl and Biolys Sulfate on Broiler Chicken Performance, Carcass parameters and Meat Quality

In this experiment compared the effects of L-Lysine-hydrochloride (Lys-HCl) and Biolys Sulfate (BioLys) on broiler chickens performance, carcass parameters and meat quality. In a completely randomized design, 200 Ross-308 broiler chickens were allocated to 5 dietary treatments with 5 replicates and 8 birds in each. Supplementary lysine was obtained from Lys-HCl and Biolys. Dietary treatments including: 1- 100% from Lys-HCl (control or basal diet), 2- 75% from Lys-HCl and 25% from BioLys, 3- 50% from Lys-HCl and 50% from BioLys, 4- 25% from Lys-HCl and 75% from BioLys and 5- 100% from BioLys. The results showed that from 1-42d, broiler chickens fed the 100-diet had higher feed intake and body weight gain as compared to control group (P < 0.05). Dietary treatments had no significant effect on carcass parameters and breast and thigh meat dry matter and crude fat percentages (P > 0.05). Breast meat drip loss of broiler chickens fed diets containing 25, 50 and 75 percentage BioLys was lower than that of control group (P < 0.05). In conclusion, BioLys compared to Lys-HCl had better effect on broiler chickens performance and meat quality but carcass parameters did not affect by dietary treatments. With regard to the results of the current experiment and cheaper price, BioLys (with 50 or 100 percent substitution level) can be use as better and economic source of Lys in broiler chickens diet.