AI Article Synopsis
- The study investigated the prevalence and related health issues of coccidiosis in commercial laying chickens across Nigeria from 2007 to 2016, examining 1,843 birds from 28 states.
- A total of 207 samples tested positive for infections, with a prevalence rate of 11.23%, highlighting significant regional variations, with the highest rates found in Ebonyi and Lagos states.
- The research also noted that younger birds were more susceptible to infections, which were notably prevalent during the wet season, and detailed various pathological changes observed in infected birds.
Article Abstract
Coccidiosis is known to affect a wide range of animals including chickens. This study was designed to determine the nation-wide prevalence and clinico-histopathological changes associated with infections in commercial laying birds in Nigeria. One Thousand eight hundred and forty-three (1843) commercial laying chickens from 28 states and the Federal Capital Territory (FCT) of Nigeria, between 2007 and 2016 were examined for the presence of parasites and for clinicopathological lesions. Simple flotation and the McMaster techniques were used to confirm the presence of oocysts and estimate the oocyst load. Positive samples were sporulated for the purpose of species differentiation. Gross and histopathology were carried out accordingly. Two hundred and seven (207) faecal samples/carcasses were positive for infections (11.23%; 95% CI = 9.87-12.75). and . were the most prevalent species. The highest mean oocyst per gram (OPG) was recorded in . (5260.87 (1838.35)). The prevalence of infections in commercial laying birds within the states ranged between 4.4% (Kaduna State), and 33% (Ebonyi and Lagos States), and 21.1% in FCT. There was a higher prevalence of infections in commercial laying birds that are less than 1 year compared to those above a year. infections was 2.19 times more likely to occur during the wet season compared to the dry season (95% CI = 1.59-3.06; χ2 = 23.29; = < 0.01). One hundred and eighty-five (185) carcasses showed moderate petechiae to ecchymotic intestinal/caecal mucosa, while 22 carcasses showed severe petechiae to ecchymotic intestinal/caecal mucosa with bloody intestinal lumen. This study appears to be the first nation-wide study on the prevalence and clinico-histopathological changes associated with infections in commercial laying chickens in Nigeria.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9458795 | PMC |
| http://dx.doi.org/10.1007/s12639-022-01509-y | DOI Listing |
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