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Table 1 Protozoans/CP and their dose which cause necrotic enteritis in broiler chickens

From: Pretreatment with probiotics ameliorate gut health and necrotic enteritis in broiler chickens, a substitute to antibiotics

Serial no. Pathogen/protozoans Infection dose References
1. Eimeria necatrix 2 × 104 oocysts/bird De Cesare et al. (2020)
2. Eimeria. maxima 2–5 × 104 oocysts/bird Gholamiandehkordi et al. (2007), Collier et al. (2008)
3. Eimeria. acervulina 7.5 × 104 oocysts/bird Collier et al. (2008)
4. Clostridium perfringens 107 − 109 CFU/g of intestinal contents Shojadoost et al. (2012), Timbermont et al. (2009).