| isolation, propagation, identification and comparative pathogenicity of five egyptian field strains of eimeria tenella from broiler chickens in five different provinces in egypt. | a battery trial was conducted to evaluate the comparative pathogenicity of five field strains of eimeria tenella from behera, khafr el-sheikh, alexandria, gharbia and matrouh provinces in egypt. two-week-old broiler chickens were infected with 25×10(3) sporulated oocysts of each strain of e. tenella. the comparative pathogenicity of the strains was assessed by calculating body weight gain, feed conversion ratio, lesion scores, dropping nature scores, cecal scrapings, mortality percentage and ooc ... | 2010 | 21134686 |
| evaluation of the protective efficacy of the anticoccidial vaccine coccivac-b in broilers, when challenged with egyptian field isolates of e. tenella. | the present study was performed to explore the efficacy of the commercial anticoccidial vaccine (coccivac b®) in broiler chickens using five field strains of eimeria tenella that were isolated from five provinces in egypt. this study also analyzed the its-1-rdna sequence of these five strains and its corresponding sequence in the vaccine. in a floor pen experiment, 216 one-day-old commercial broiler chicks were classified into vaccinated and non-vaccinated groups. each main group was classified ... | 2013 | 23001507 |