Pemanfaatan Protein pada Ayam Broiler yang Diberi Ransum Menggunakan Kalsium Mikropartikel Cangkang Telur dengan Suplementasi Asam Sitrat

Abstract

The aim of this research was to evaluate the effect of dietary microparticle organic-calcium derived from eggshell with citric acid addition as an acidifier on protein digestibility, meat calcium mass and meat protein mass in broiler chicken. A total of 160 broilers aged 15 days old of Cobb strain with initial body weight of 413.10 ± 11.85g were used in the present study. Experiment was assigned in a completely randomized design with 5 treatments and 4 replications, experimental unit consisted of 8 chicks. Experimental feeds applied, namely T0 (control feed), T1 (18% protein feed), T2 (18% protein feed composed of microparticle Ca), T3 (18% protein feed + 1.2% citric acid), and T4 (18% protein feed composed of microparticle Ca + 1,2% citric acid). Parameters observed were protein digestibility, meat calcium mass, and meat protein mass. Data were subjected to analysis of variance and continued to Duncan' M i e R ge test (DMRT). The results indicated that dietary inclusion of microparticle organic-calcium in 18% protein feed with citric acid addition (T4) significantly (P<0.05) increased protein digestibility and meat protein mass with the highest value was 89.43% and 46.37 g, respectively, but the highest meat Ca mass was in T0 (9.76g). Based on the results of this study it can be concluded that dietary protein utilization can be categorized effective in broiler feed 18% protein diet composed of microparticle organic-calcium supplemented with citric acid as acidifier.