Effects of egg storage duration on egg quality, metabolic rate, hematological parameters during embryonic and post-hatch development of guinea fowl broilers.

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dc.contributor.authorKouame, Y.A.E
dc.contributor.authorVoemesse, K.
dc.contributor.authorLin, H.
dc.date.accessioned2023-04-21T19:36:34Z
dc.date.available2023-04-21T19:36:34Z
dc.date.issued2021
dc.descriptionPUBMED POULTRY SCIENCEen_US
dc.description.abstractConsidering the value of guinea fowl keets, successful incubation of eggs is particularly desirable in this poultry species. This study evaluated the effect of egg storage duration on egg quality, heat production, hematological parameters during embryonic development and post hatch performance of guinea fowl broilers. A total of 800 hatching eggs of guinea fowl were used for this study. Before incubation, 12 eggs per treatment were used to analyse egg quality. Then, eggs were numbered, weighed, and assigned to 2 treatment groups of 400 eggs each according to storage duration of 5, and 10 d at a temperature of 18°C. The eggs were set for incubation at 37.7°C and 55% relative humidity for 28 d in a forced-draft incubator. To determine heat production as a measure of metabolism, 60 eggs in each replicate were transferred to respiratory cages post hatch two 12 wk old guinea fowl were also used to determine heat production. CO2 and O2 were recorded to calculate heat production at internal pipping, hatch and at 12 wk of age. The hatched keets were reared for 12 wk and data were collected on feed intake, body weight and feed conversion ratio. Blood samples were collected at hatch and at 12 wk of age from 24 guinea fowls per treatment to analyze haematological parameters. The results showed that embryos and guinea fowls at 12 wks of age from eggs stored for 5 d had higher (P ˂ 0.05) heat production and body weights. However, a significant higher (P ˂ 0.05) level of basophile, eosinophils, and lymphocytes was observed in guinea fowls from 10 d storage egg. It was concluded that extended duration of egg storage negatively influenced the metabolic rate of embryos. It also impacted hematological parameters which may suggest influence on immune response during embryonic and post-hatch growth.en_US
dc.description.sponsorshipACE: Poultry Sciencesen_US
dc.identifier.citationDOI: 10.1016/j.psj.2021.101428en_US
dc.identifier.issn0032-5791
dc.identifier.issn1525-3171
dc.identifier.urihttps://datad.aau.org/handle/123456789/1501
dc.language.isoenen_US
dc.publisherPUBMEDen_US
dc.subjectegg storageen_US
dc.subjectegg qualityen_US
dc.subjectmeat-type guinea fowlen_US
dc.subjectheat productionen_US
dc.subjecthaematological parameteren_US
dc.subjectO.M. Onagbesanen_US
dc.subjectK. Tonaen_US
dc.subjectUniversity of Loméen_US
dc.subjectTogoen_US
dc.subjectCERSAen_US
dc.titleEffects of egg storage duration on egg quality, metabolic rate, hematological parameters during embryonic and post-hatch development of guinea fowl broilers.en_US
dc.typeArticleen_US
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