PENGGUNAAN PROBIOTIK Lactobacillus casei DAN Bifidobacterium sp TERHADAP ANALISIS USAHA PADA AYAM PETELUR YANG DIINFEKSI Escherichia coli PENELITIAN EKSPERIMENTAL DAN ANALISIS USAHA

This study aims to determinated the probiotics of lactobacillus casei and Bifidobacterium sp on the laying hens infected by Escherichia coli on performance, business analysis, and feasibility . The materials used in this experiment were 120 laying hens aged 25 weeks The variables measured were are feed consumption, hen day production (HDP), feed conversion ratio (FCR), weight egg, business analysis. Data were analyzed statistically using Analysis of Variance (ANOVA), if between treatment showed significant effect were analysed by Duncan’s Multiple Range Test (DMRT). The results showed that the use of probiotics Lactobacillus casei and Bifidobacterium sp in laying hens by infected Escherichia coli did not give a significant difference (P> 0.05) to feed consumption, showing significant differences (P <0.05) against HDP, indicating Significant differences (P <0.05) on FCR showed significant differences (P <0.05) for massive eggs, showing significant differences (P