Menu Español English USA 简体中文 Login EFFECT OF DIFFERENT ADDITIVES IN THE PROTECTION OF BROILERS CHALLENGED WITH CAMPYLOBACTER You are here Home » News » EFFECT OF DIFFERENT ADDITIVES IN THE PROTECTION OF BROILERS CHALLENGED WITH CAMPYLOBACTER EFFECT OF DIFFERENT ADDITIVES IN THE PROTECTION OF BROILERS CHALLENGED WITH CAMPYLOBACTER October 13, 2021 The major source of human campylobacteriosis is considered undercooked and cross-contaminated broiler meat. The society is demanding to reduce antibiotic use and alternatives to fight against bacterial infections in farms. In this context, in the monthly WPC webinars 2021, Norel has presented the last trial focused on the effect of different additives on caecal colonization of Campylobacter in broilers. A total of 288 day-old chicks (negative to Campylobacter) were distributed in 4 treatments among 24-floor pens (n=6). The treatments were: T1, Control feed without additives; T2, GUSTOR N’RGY (2.7Kg/t of feed, active ingredient, AI=56% C4); T3, DICOSAN (4Kg/t, AI=38% C8+C10+C12); and T4, DICOSAN+ (2.3Kg/t, AI=65% C4+C8+C10+C12). All additives were dosed to achieve the same quantity of AI in the final feed. At d11 of rearing, 20% of birds were orally challenged with Campylobacter jejuni (6 log10 CFU/mL). From each treatment 18 chicks were euthanized for caeca sampling at 1, 2, 3 and 4 weeks post-inoculation (WPI). All additives got a significant reduction on Campylobacter counts along the rearing period. By week, a significant logarithmic reduction of Campylobacter counts at 4th WPI were achieved by T2, T3 and T4 (1.63, 1.23 and 1.26 Log R, P<0.05). By treatment, no significant differences were observed at 1st and 2nd WPI. However, at 3rd WPI, T4 tended to have the lowest counts (6.75y, 6.59xy, 6.86y and 6.06x, for T1, T2, T3 and T4, respectively). At 4th WPI, T2 and T3 had significant lower counts of Campylobacter (6.66b, 5.91a, 6.03a and 6.24ab, for T1, T2, T3 and T4, respectively). In conclusion, all treatments achieved a significant reduction of caecal colonization by Campylobacter. However, DICOSAN+ at 32d of rearing with 1.4 log10CFU/g reduction and GUSTOR N’RGY at 42d of rearing with 1.6 log10CFU/g reduction were the most effective additives. It has been reported that Campylobacter reductions around 2 log10 CFU/g is estimated to reduce human campylobacteriosis cases attributable to broiler meat by at least 76%. Cinta Sol Share this post: Recent events World Aquaculture 2021 December 05, 2021 VIV ASIA 2021 January 12, 2022 IPPE 2022 January 25, 2022 MADRID OFICINA CENTRAL Y PEDIDOS Jesús Aprendiz, 19. 1º A-B 28007 - Madrid - ESPAÑA +34 915 014 041 info@norel.net E-NEWS Norel worldwide Norel Madrid Norel Barcelona Norel Tarragona Norel Cuenca Norel Mexico Norel Egipto Norel Singapore Norel USA Norel Brasil About us NOREL is an innovative company whose business is focused on the development, manufacture and marketing of additives and raw materials for animal nutrition. With over 40 years experience and sales to more than 70 countries it is headquartered in Madrid and factories and R & D laboratories in different provinces of Spain, United States, Mexico and Egypt. Norel Animal Nutrition - © 2018 Norel S.A - All rigths reserved | Privacy policy | Code of ethics and conduct | Quality policy and food safety | Legal warning | Developed by Drauta