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dc.contributor.authorManyeula, Freddy
dc.contributor.authorSebolai, Boingotlo
dc.contributor.authorSempule, Godiraone
dc.contributor.authorMoreki, John Cassius
dc.date.accessioned2022-06-20T08:35:56Z
dc.date.available2022-06-20T08:35:56Z
dc.date.issued2021-09-25
dc.identifier.citationManyeula, F., Sebolai, B., Sempule, G. and Moreki, J.C., Effects of Broiler Breeders’ Age on Egg Quality Characteristics and Their Correlation Coefficientsen_US
dc.identifier.issn2322-455X
dc.identifier.urihttps://dx.doi.org/10.36380/jwpr.2021.44
dc.identifier.urihttp://jwpr.science-line.com/
dc.identifier.urihttps://hdl.handle.net/13049/480
dc.descriptionThe article was published under the CC BY-NC 4.0 license.en_US
dc.description.abstractThe current study was designed to assess the effect of Ross breeder hens’ age on the egg qualities and their correlations. The external and internal qualities of eggs were compared, and their correlation coefficients as influenced by the age of breeder hens were determined. A sample of 300 Ross breeder hen eggs was obtained from the Ross breeder farm with 100 eggs drawn from each laying period of ages, namely 30, 45, and 60 weeks. Measured parameters included egg weight, egg length, egg width, shell weight, and shell thickness. Data were evaluated for linear and quadratic effects using polynomial contrasts. Response surface regression analysis was applied to describe the responses of egg quality to the aging of breeder hens. The results showed that egg weight, egg length, egg width, shell weight, egg yolk, egg content, egg volume, shell percentage, albumen weight, egg shape index, and egg surface area increased over time. Haugh unit and thick albumen indicated that the eggs in all age groups were fresh and had high quality. Shell thickness was constant in all age groups. Egg weight was significantly correlated with egg length, width, yolk (length, width, weight, and height), and shell weight. In conclusion, the egg quality improved as the hens' age increased implying that age is an effective factor in improving the quality of eggs.en_US
dc.language.isoenen_US
dc.publisherScienceline Publishersen_US
dc.relation.ispartofseriesJournal of World’s Poultry Research;11(3): 368-375
dc.subjectAgeen_US
dc.subjectBroiler breederen_US
dc.subjectEgg qualityen_US
dc.subjectShell qualityen_US
dc.titleEffects of Broiler Breeders’ Age on Egg Quality Characteristics and Their Correlation Coefficients.en_US
dc.typeArticleen_US


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