Ayman Gamal Fawzy EL Nagar
Professor
The relationship between eggshell color, hatching traits, fertility, mortality, and some qualitative aspects of Japanese quail (Coturnix japonica) eggs
• 2023
Publication Information
Authors
NoraA.Ismael,*UsamaM.Abdelmonem,yMohamedS.El-Kholy,*A.G.ElNagar,zAtefF.Ahmed,xMohammedAlmalki,xKhaledA.El-Tarabily,#,1andFayizM.Reda*
Keywords
Not Available
Journal
Not Available
Publisher
Not Available
Volume
Not Available
Issue
Not Available
Pages
Not Available
publication.type
International
Paper Link
Not Available
Supplementary Materials
Not Available
Abstract
ABSTRACTQuail,oneofthemostimportantsourcesofmeatandeggs,canaidinthereductionofthemeatcri-sisiftheyareraisedandcaredforbysmallfarmers.ThecurrentstudyinvestigatedtheimpactofeggshellcolorvarietyoneggqualitytraitsandhatchingparametersofJapanesequailCoturnixjaponicaeggs.Therefore,1,075eggswerecollectedfromfemalequailswhentheywere10-wkold.Theseeggsweredistributedbasedonthecoloroftheireggshellsinto5differentclassifications:eggshellwithcolortype1,verydarkdistributedbrownspotsonbrowneggshell;eggshellwithcolortype2,smallblackspotsonawhiteeggshell;eggshellwithcolortype3,wide-spreadbrownspotsonbrowneggshell;eggshellwithcolortype4,bubbleegg,pindottedongrayishbrowncoloregg-shell;andeggshellwithcolortype5,smallbrownspotsonveryclearlywhiteeggshell.Thecharacteristicsofhatch-ability,internalandexternaleggquality,andtherateofembryonicdeathwerethendetermined.Theresultsshowedthatthepercentageoffertilityandcommercialandscientifichatchabilitywasgreatlyaffectedbyeggshellcolor.Therewerealsovariationsinthepercentageofhatchedchicks’,earlymortalityrates,andlatemortalityratesbasedoneggshellcolor.Accordingtotheresultsofthecurrentstudy,eggshellcolorhasasignificantimpactoneggweight,eggwidth,andpercentagesofeggshell,yolk,andalbumenbuthasnoeffectonshapeindex,egglength,oreggelongation.Basedontheresults,eggshellswithcolortypes2and3wererecommendedforuseinhatchingproceduresduetotheirhighlevelsoffertility(92.01and91.63%,respectively),scientifichatchability(82.92and83.93%,respectively),commercialhatchabil-ity(76.56and77.32%,respectively),andhatchedchick(5.50and6.70,respectively).Inaddition,thelateembry-onicmortalityratewas0.00%foreggshellswithcolortype3.Therefore,thecoloroftheeggshellcanbeemployedasakeyfactoringuidingtheeggsthatarepro-duced,whethertheyaregoingtobeconsumedatthetableorusedforhatching,tomakebreedingeasier.