Morphological Characterization of Five Nigerian Indigenous Chicken Types

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dc.contributor.authorAdekoya, K.O.
dc.contributor.authorOboh, B.O.
dc.contributor.authorAdefenwa, M.A.
dc.contributor.authorOgunkanmi, L.A.
dc.date.accessioned2019-01-17T07:54:27Z
dc.date.available2019-01-17T07:54:27Z
dc.date.issued2013
dc.description.abstractThe sustainable management, utilization and conservation of a particular population of domestic animals require its characterization. Standard characterization and evaluation of particular populations of domestic animals may be carried out by using different methods, including traditional practices such as the use of descriptor lists of morphological characters. A detailed morphological study was performed on adult birds of five Nigerian indigenous chicken types. The chicken types include: Asa (frizzle feather), Abolorun (naked neck), Onigbaogbe (rose comb), Ibile (wild type), and Opipi (featherless wing). Eight morphological measurements were taken from birds of the different types. Tests of equality of group means revealed significant differences between means of the five types for 5 out of 8 morphological measurements. Morphological measurements were also analysed through discriminant analysis and hierarchical cluster analysis in order to establish relationships among the different types as well as to have a tool to assign new sets of data for unknown types to one of the groups analysed here. The first canonical function accounted for 72.7%, the second, third and fourth accounted for 20.4%, 5.5% and 1.4% respectively, between-group variability. Plotting the first, second and third principal components showed that the observed differences were mainly from all the measurements except jaw width and wing length. Visual examination of the samples along the canonical functions revealed some between-sample differentiations. The rose comb and the wild type were mostly isolated from each other and from all other types. The overall percentage of correctly classified cases was 56.0%. The proportion of individuals correctly classified into their original group was highest in the wild type (78.6%), then naked neck (63.6%) and featherless wing (60.0%), indicating that the wild type is highly divergent from the other types. Application of molecular genetics technique will be useful in confirming the detected phenotypic differentiation.en_US
dc.description.sponsorshipFaculty of Science, UNILAGen_US
dc.identifier.citationAdekoya, K.O. , Oboh, B.O., Adefenwa, M.A. and Ogunkanmi, L.A. (2013). Morphological Characterization of Five Types Nigerian Indigenous Chicken Types. Journal of Sci. Res. Dev. 14 : 55 – 66.en_US
dc.identifier.issn1115 - 7569
dc.identifier.urihttp://ir.unilag.edu.ng:8080/handle/123456789/3518
dc.language.isoenen_US
dc.publisherJournal of Scientific Research and Developmenten_US
dc.subjectChickenen_US
dc.subjectMorphological measurementsen_US
dc.subjectDiscriminant analysisen_US
dc.subjectCanonical functionen_US
dc.subjectNigeriaen_US
dc.titleMorphological Characterization of Five Nigerian Indigenous Chicken Typesen_US
dc.typeArticleen_US
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