دراسة الصفات النوعية والكيميائية لبيض بعض أنواع الطيور المحلية

Abstract

AbstractThe objective of this study was to compared the quality characteristics infour type of native fowls which were geese, turkey,duck,and domesticchicken which included egg weight,percentages of egg shell,egg yolk,eggwhite,yolk hight,yolk diameter,white hight and haugh unit.The chemical composition of egg yolk and white included percentage ofmoisture,ash,protein,lipid2 carbohydrates,cholesterol concentration ,highand low density lipoprotein in egg yolk.The data obtained that high significant(p<0.05) in the egg weight ,white andegg yolk hight and in yolk diameter in the geese eggs and highly significantin the percentage of egg white weight in the chicken eggs.In chemicalcomposition the result indicated to highly significant in the percentage ofprotein in the egg white and egg yolk in the turkey and chicken,highlysignificant in the carbohydrate percentage in the white and egg yolk in thegeese and duck eggs and highly significant in the lipid percentage in the eggyolk in duck eggs compared with other types, while in the egg yolk of thenative chicken was find low significant(p<0.05) in the cholesterol and lowdensity lipoprotein and highly significant in high density lipoprotein.The result indicated that the species effected on the quality and chemicalcharacteristics of eggs and the native chicken eggs have high level of proteinand low level from lipid and cholesterol compared with other types ofnative fowls and this type produce probably safer eggs as far as cholesterolconcern so that the chicken egg healthy preferred compared with othertypes.