Effect of L-Methionine and L-Lysine HCL supplementation in minimum standard feed requirements on the performance of KUB (Kampung Unggul Balitbangtan) chickens

Abstract

This study will determine the effect of supplementing L-methionine, and L-lysine HCl to a minimum diet based on KUB (Kampung Unggul Balitbangtan) chickens standards body weight, weight gain, and Feed Conversion Ratio of KUB chicken at the grower phase. A total of 240 Eight weeks-old KUB chickens were used in this study. The KUB chickens were divided into 3 treatments with 4 replications. The dietary treatments were: R0 (ration based on minimum diet standard), R1 (ration based on minimum diet standard + 0.25% L-Methionine+ 0.25% L-Lysine HCl), R2 (ration based on minimum diet standard + 0.5% L- Methionine + 0.5% L-Lysine HCl). The data collected were body weight, weight gain, and feed conversion ratio of KUB chickens aged 8 weeks. The result of this study for R0, R1 and R2 showed that body weight of chickens were 516.25+34.07^a; 519.75+31.25^a; 502+47.45^bg/bird, weights gain were451.58+39.54^a; 443.08+35.74^ab; 424.83+57.73^bg/birds and feed conversion ratio were3.76+0.31^a; 3.83+0.29^a; 4.05+0.63^brespectively. The results showed that supplementation of L-Methionine and L-Lysine HCl using minimum diet standard gave no significant effect (P<0.05) on body weight, weight gain, and Feed Conversion. The result concluded that supplementing 0.25% to 0.5% L-methionine and l-lysine HCl did not increase body weight and weight gain and did not affect the Feed Conversion of KUB chickens. Furthermore, the minimum diet standard for KUB chicken already has a basic diet requirement. We suggested not adding the combination of L-Methionine (0.25% to 0.5%) and L-Lysine HCl (0.25% to 0.5%) in the minimum diet standard KUB chicken.