The Comparison of Egg Composition from Different Strain of Boiler Breeders at 33 Weeks of age
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 12
Abstract
The aim of this study was the comparative analysis of the chemical composition determined for Eggs (white, yolk) from Ross and Cobb hens at 33 weeks of age. Research has been organized in laboratory unit with different strain of hen. 180 eggs, provided by two broiler breeders flocks were used for this study. Half (90) of the eggs were collected from a commercial flock of Ross 308 broiler breeders flock (Ross,R) at 33 weeks of age and the other half (90) were from a commercial flock of Cobb 500 broiler breeders at 33 weeks (Cobb,C) of age. Egg, albumen and yolk weighted. weight albumin dry matter (ALBDM), albumin ash (ALBASH), albumin crude fat (ALBEE), albumin crude protein (ALBCP) were determined and albumin nitrogen free extract (ALBNFE) was calculated based on difference method(1). Yolk dry matters (YDM), yolk ash (YASH), yolk crude protein (YCP) were determined and yolk nitrogen free extract (RYNFE) was calculated based on difference method. Gross energy content of yolk and albumin was determined based on AOAC method by combustion method in adiabatic bomb. A completely randomized design was used in Experiment, with two treatments (breeder strain). There was no significant difference in egg weight (EW) of R breeder compared to eggs from C breeder (P>0.05). In this study although shell weight of the C group (10.22 g) was higher than that of R group (9.83 g) but there was no significant difference between two breeders (P>0.05). There was significant differences (P<0.05) between R and C group in Albumen and total egg energy content, this result may be due to this fact that C group had more CP and EE in their eggs so energy content of its increased in same manner.
Authors and Affiliations
I Hajkhodadadi
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