The Effect of Flock Age on Hatching Results and Chick Quality in Ross 308 Broiler

Murat Durmuş, Kadriye Kurşun, Mikail Baylan, Hasan Rüştü Kutlu

Abstract


The present study was planned to determine the effect of flock age on hatching results and chick quality in Ross 308 broiler parents. For this purpose, the eggs of three different flock age (30, 47, and 59 weeks of age) were used. A total of 450 eggs (50 × 3 for each group), including 150 eggs from each age group, were placed in the incubator as a coincidence. The number of alive chicks after hatching was determined and these chicks were classified into three quality groups as low quality, high quality, and discarded chicks. Non-hatched eggs were broken in order to control the fertility and determine the embryonic deaths. At the end of the study, the effect of the flock age on fertility rate (%), hatchability (%) and chick quality was found to be significant. However, the effect of flock age on hatchablity of fertile eggs and early, mid, and late-period embryo deaths were found to be insignificant. It was found that eggs obtained from the young breeders were higher in terms of fertility rate and hatchability than eggs obtained from old breeders. The chicks obtained from young breeders' eggs were determined as 33.60% high quality, 48.10% low quality, and 18.30% discarded chicks. These rates were 32.70%, 43.40%, and 23.90% in chicks obtained from middle-aged breeders, respectively, 56.10%, 36.40%, and 7.50% in chicks obtained from the old breeders. As a result, it was determined that there was a decrease in the hatching results in parallel with the increase in breeding age, but the chick quality increased.

Keywords


Broiler chick; Flock age; Hatching results; Chick quality; Qualitative parameters

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DOI: https://doi.org/10.24925/turjaf.v9i2.362-367.4005

 Creative Commons License
This work is licensed under Creative Commons Attribution 4.0 International License

ISSN: 2148-127X

Turkish JAF Sci.Tech.

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