Evaluation of Multi-microbial Probiotics Produced by Submerged Liquid and Solid Substrate Fermentation Methods in Broilers

摘要: Two experiments were conducted to evaluate multi-microbe submerged liquid (SLF) and solid substrate (SSF) fermented probiotic products in broilers. The SLF SSF probiotics comprised of Lactobacillus acidophilus (1.1×10 9 4×10 8 cfu/g), Bacillus subtilis 4.8×10 Saccharomyces cerevisiae (1.5×10 7 1.0×10 4 cfu/g) Aspergillus oryzae (2.6×10 4.3×10 respectively. In Exp. 1, 640 day-old Ross chicks allotted treatments, each comprising replicates (40 chicks/replicate). basal diet was prepared without any antimicrobials (negative control, NC), 20 mg/kg avilamycin (positive PC), 0.3% added the diets as treatments. Birds fed PC showed improved (p<0.001) overall weight gain F/G than birds NC diets; whereas, had better diet. Retention CP higher (p<0.05) PC, diets. tended have (p<0.10) cecal total anaerobic bacteria lesser coliforms noticed 2, randomly treatments a 2x2 factorial arrangement. Each treatment different (0.3% or SSF) with two antibiotics (10 colistin, avilamycin) used dietary greater (p<0.001), (p<0.05), retention energy protein Clostridium (d 35) colistin-supplemented less (p<0.01) when compared Additionally, colistin Thus, results this study suggest product by fermentation method be superior fermentation; moreover, feeding did not elicit interaction effect between antibiotic.