U. Kalsum, H. Soetanto, A. Achmanu, O. Sjofjan
The objective of this study was to investigate the potential of Lactobacillus salivarius, isolated from the intestine of Japanese quails (Coturnix japonica), as a probiotic product. The influence of this probiotics preparation on the laying performance and egg quality of quails was evaluated in a 28-day experiment. A fully randomized design was used with four experimental treatments, namely standard feed, standard feed with 2.45 × 106 cells/ml, standard feed with 2.64×107 cells/ml L. salivarius and standard feed with 2.83×108cells/ml L.salivarius. The results showed that L.salivarius supplementation did not influence egg quality parameters (haugh unit, % egg albumen, % egg yolk and egg shell thickness) and egg weight, but significantly improved total egg production and lowered cholesterol content in egg yolk. In conclusion, L. salivarius may be used as a feed additive in Japanese quail diets to improve egg production and to lower egg cholesterol content.
Faculty of Animal Husbandry, Islamic University of Malang, Malang, East Java, Indonesia; Faculty of Animal Husbandry, Brawijaya University, Malang, East Java, Indonesia
