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Journal of Pathogens
Volume 2017, Article ID 2674078, 9 pages
Research Article

Comparative Response of the Nigerian Indigenous and Broiler Chickens to a Field Caecal Isolate of Eimeria Oocysts

Department of Veterinary Microbiology and Parasitology, College of Veterinary Medicine, Michael Okpara University of Agriculture, Umudike 7267, Abia State, Nigeria

Correspondence should be addressed to Lucas Atehmengo Ngongeh; gn.ude.uauom@hegnogn

Received 13 September 2016; Accepted 11 January 2017; Published 24 April 2017

Academic Editor: Jose Yuste

Copyright © 2017 Lucas Atehmengo Ngongeh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Response of Nigerian indigenous (local) and broiler chickens to experimental Eimeria infections was investigated by measures of clinical signs, packed cell volume (PCV), body weights (BW), feed consumption, faecal oocyst counts (oocyst per gram), and microscopic intestinal lesions. Three-week-old chickens of each breed received single pulse infections with 2500, 5000, and 100.000 sporulated Eimeria oocysts. Infected birds were dull and passed bloody diarrhoea. OPG showed a dose related response but no significant difference between groups (). OPG was significantly higher in local chickens () and varied significantly with time (). PCV declined significantly in infected birds within breeds and groups (); however, the decline in PCV was significantly greater in broilers (). Both breeds had significant BW gains (). BW gain varied between groups being significantly higher in the uninfected control broilers than in the infected broilers (). Comparatively, broilers gained significantly more BW than their local counterparts (). Feed intake increased significantly with time () in both breeds. The Eimeria isolate was pathogenic to both breeds of chicken although clinical signs and lesions were more severe in indigenous chickens suggesting the breed’s more susceptibility.