Impacts of storage period and egg weight on hatching and growth performance of growing Japanese quails

Faculty Agriculture Year: 2024
Type of Publication: ZU Hosted Pages: 1-10
Authors:
Olwi Ali Mohamed Hasanien
Journal: Poultry Science El-Sevier Volume: 7
Keywords : Impacts , storage period , , weight , hatching , growth    
Abstract:
ThisinvestigationaimedtoassesshowJapanesequailhatchability,growth,andcarcasstraitswereaffectedbyquaileggweight,storagelength,andtheirinteractions.OnethousandtwohundredsixtyeggsofthecommercialJapanesequailwerepurchased,andtheaverageageofthebirdswas13wk.Quaileggweightsweredividedinto3groupsusinga3£4facto-rialdesign:small(<11g),medium(11−12g),andlarge(>12g).Eachgrouphadfourstoragetimes(1,4,7,and10d)andheld105eggs.Thestudyusedastorageroomwith70%humidityand18°C.Therewere12treatmentgroups.Forthefinal3dofincubation,theeggswerepositionedinahatchingmachineafterbeingincubatedfor14dat37.6°Cand65%humidity.Forthestudy,540one-day-oldJapaneseunsexedquailchickswereran-domlychosenandplacedingroupsof5thatresembled thedistributionofeggs.Threeduplicates(15chickseach)madeupeachofthe4storageperiodsthatcom-prisedthe180birds.Thefindingsshowedthattheper-centageofhatchableeggsissignificantlyinfluencedbytheirweightandthelengthofstorage;mediumandheavy-weighteggsexhibitedhigherpercentagesofhatchabilitywhileholdingfor7to10d.However,nosig-nificantinteractionwasobserved—additionally,heavyeggweightresultsinhigherweightatdifferentages.Eggweightalsosignificantlyimpactschickweightathatch,3wk,and6wk.Eggweightandstoragetimeaffectdressingandcarcassmeasurementpercentages.Wecanconcludethatthebestresultsintermsofhatchandpost-hatchefficiency,aswellascarcasscharacteristics,wereobtainedwithmediumorheavyquaileggsandstoragetimesofeither1dor4d.
    
     
 
       

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