Effect of dietary probaiotics products on Salmonella enteritidis colonization and productivity in meat chicks

The effect of probiotics products in feed on Salmonella enteritidis (SE) colonization was evaluated in meat chickens. On days 0 to 10, chicks were given in the feed which contained probiotics materials in 1%, and control feed. These were divided into six groups and all groups were challenged intra crop with 2.6 x 10E6 CFU SE on day 3. As a result, SE recovery rates in the cecal droppings were significantly lower in chicks given D probiotics product that contained Lactobacillus sp. and several species bacteria than in chicks given control feed and other probiotics products, on days 4 to 10. And the number of SE organisms and SE recovery rates in the cecum contents were significantly lower in chicks given D probiotics product than in chicks given control feed and other probiotics products, on days 10. The effect of D probiotics product addition density in feed on Salmonella enteritidis (SE) colonization was evaluated in meat chickens. On days 0 to 10, chicks were given in a different addition density in feed and divided into six groups. On days 0 to 10, group 1 was given no D probiotics product; group 2, 0.2% D probiotics product; group 3, 0.5% D probiotics product; group 4, 1% D probiotics product; group 5, 2% D probiotics product; and group 6, 4% D probiotics product. All groups were challenged intra crop with 7.3 x 10E6 CFU SE on days 3. As a result, SE recovery rates in the cecal droppings were significantly lower in chicks given 0.2% D probiotics product than in chicks given control feed and other addition density of D probiotics products, on days 4 to 10. And the number of SE organisms and SE recovery rates in the cecum contents were significantly lower in chicks given 0.2% D probiotics product than in chicks given control feed and other addition density of D probiotics product, on days 10. The effect of D probiotics product addition density in feed on productivity was evaluated in meat chickens in days 21 to 70. As a result, chickens given 0.2% D probiotics product were a per chickens given control feed. Results indicate that dietary D probiotics product 0.2% effectively reduces the cecal colonization of SE.