Abstract

Herinda Pertiwi, Mohamad Yusril Nur Mahendra.

Probiotic Lactobacillus sp. is considered a potential resource for improving the performance of broiler chicken in Indonesia. Administration of Lactobacillus sp. Probiotics could increase the Average Daily Gain (ADG) and body weight of broiler chickens by increasing intestinal villi permeability, so that nutrient absorption could be optimal. Use of Lactobacillus sp. in the ration is often combined with other probiotics, prebiotics, phytoadditives, and organic acids to support the feed intake and feed conversion ratio. Lactobacillus sp. also able to produce various bioactive compounds such as the enzyme manase which could be in symbiosis with mannan-oligosaccharides (MOS) to increase the bodyweight of broiler chickens and bacteriocins that against pathogenic bacteria such as Salmonella typhimurium, Staphylococcus aureus and Bacillus cereus. Probiotic metabolic activity of Lactobacillus sp. could suppress the growth of pathogenic bacteria by creating an acid digestive environment. In addition, immunity and hematological conditions such as erythrocytes, hematocrit, leukocytes, MCV, MCH, and MCHC were maintained well by Lactobacillus sp. supplementation in the ration. This review aims to highlight the potential of probiotic Lactobacillus sp to modulate broiler microbiome and metabolic status to enhance performance and health.

Key words: Broiler chicken, Lactobacillus sp., Production