Comparison of the performance of Nigerian indigenous chickens from three agro-ecological zones

摘要

Nigerianindigenouschicken(NIC)fromthreeagro-ecologicalzones(RainForest,RF;DerivedSavanna,DS;andGuineaSavanna,GS)wereevaluatedforageatfirstegg,eggproductionandeggweight,percenthen-dayeggproductionandpercentlayingmortality.?Dataforthisworkwerecollectedoveraperiodof72weeks.?Atotalof579eggsfromDSandRFzonesand505growersfromDS,GSandRFwereevaluated.?DatawerecompiledbyDbaseIVandanalysedusingtheGeneralLinearModel(GLM)procedureofStatisticalAnalysisSystem(SAS).Agro-ecologicalzones,ageandsexwerethefixedeffectsinthemodel.?MeansforeachvariableeffectwerecomparedusingtheLeast-SquareAnalysisofVarianceandDuncanoptionofSAS.?Forallthetraitsevaluated,therewasnosignificantdifferencenbsp;betweenthechickensfromthethreeecologicalzones.Hence,theNigerianindigenouschickensfromthesezonescannotbesaidtobelongtodifferentgeneticgroups.nbsp;