Effect of pearl guinea fowl eggshell ultrastructure and microstructure on keets hatchability

Damaziak, Krzysztof; Marzec, Agata; Riedel, Julia; Wójcik, Wojciech; Pstrokoński, Paweł; Szudrowicz, Hubert; Gozdowski, Dariusz

doi:10.1016/j.psj.2023.102733

Cited by 6 publications

(3 citation statements)

References 33 publications

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“…Additionally, bubble pores may play a more important role than the gas pores that permeate the eggshell in regulating the internal and external gas exchange of the egg [25]. Damaziak et al [52] showed that the hatching rate of GF reached 89.47%, indicating that few but large pores may facilitate the gas exchange inside and outside the eggshell during embryo hatching. Fathi et al [32] also observed the bubble pore structure in the PL.…”

Section: Eggshell Ultrastructure and Bubble Poresmentioning

confidence: 99%

Comparative Analysis of the Ultrastructure, Bubble Pores, and Composition of Eggshells of Dwarf Layer-White and Guinea Fowl

Wang,

Chen,

Zhang

et al. 2024

Animals

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The decrease in eggshell quality seriously affects production efficiency. Guinea fowl (GF) eggs possess strong eggshells because of their unique crystal structure, and few systematic studies have compared laying hen and GF eggs. Sixty eggs were collected from both 40-week-old Dwarf Layer-White (DWL-White) laying hens and GF, and the eggshell quality, ultrastructure, bubble pores, and composition were measured. The results showed that the DWL-White eggs had a higher egg weight and a lower eggshell strength, strength per unit weight, thickness, and ratio than the GF eggs (p < 0.01). There were differences in the mammillary layer thickness ratio, the effective layer thickness ratio, the quantity of bubble pores (QBPs), the ratio of the sum of the area of bubble pores to the area of the eggshell in each image (ARBE), and the average area of bubble pores (AABPs) between the DWL-White and GF eggs (p < 0.01). The composition analysis demonstrated that there were differences in the organic matter, inorganic matter, calcium, and phosphorus between the DWL-White and GF eggs (p < 0.01). There were positive associations between the mammillary knob number in the image and the QBPs and ARBE and a negative correlation with the AABPs in the DWL-White eggs (p < 0.01). This study observed distinctions that offer new insights into enhancing eggshell quality.

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Section: Eggshell Ultrastructure and Bubble Poresmentioning

confidence: 99%

Comparative Analysis of the Ultrastructure, Bubble Pores, and Composition of Eggshells of Dwarf Layer-White and Guinea Fowl

Wang,

Chen,

Zhang

et al. 2024

Animals

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“…Albumen height and yolk height were measured by tripod micrometer (accuracy of 0.01 mm) after the albumen of the broken eggs was carefully separated from the yolk [11,22]. Yolk weight was measured by using a sensitive balance [21] while albumen weight was calculated as: Albumen weight (g) = Egg weight -(yolk weight + shell weight) [24].…”

Section: Egg Quality Assessmentmentioning

confidence: 99%

“…In Nigeria, previous research and development endeavours focused on chicken, while other poultry species like guinea fowl have been neglected. Also, reproductive performance (fertility and hatchability characteristics) which is crucial to guinea fowl profitability [11] and egg quality traits of guinea fowl [12][13][14] in the country have not been widely exploited. Such information is vital to unravel the potential of the underutilized poultry genetic resource in order to map out appropriate selection and breeding strategies for improvement in production and productivity of the birds.…”

Section: Introductionmentioning

confidence: 99%

Fertility, Hatchability and Prediction of Egg Weight from Egg Quality Indices of Nigerian Helmeted Guinea Fowls and the French Strain

Jegede,

Yakubu,

Musa

et al. 2024

Preprint

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This study was conducted to compare the fertility and hatchability performance of the indigenous helmeted guinea fowls and exotic birds of the French strain, and predict egg weight from egg indices in Nigeria. A total of 300 randomly selected 8-month old guinea fowls comprising 150 indigenous (30 males and 120 females) and 150 French strain (30 males and 120 females) were utilized in the study. From these, a total of 240 randomly selected eggs (120 per genetic group) were used separately for the reproductive and egg quality assessment. The fertility and hatchability parameters were subjected to descriptive statistics, while the seventeen egg quality parameters were analysed using T-test, phenotypic correlation, principal component analysis, multiple linear regression and CHAID decision tree. Percentage fertility (90.0 versus 73.3%) and hatchability (66.7 versus 56.8%) were higher in the French strain compared to their indigenous counterparts. The egg quality parameters of the French strain were higher (P<0.05) than those of their indigenous counterparts with the exception of egg shell index (18.88±0.79 versus 16.41±0.69) and haugh unit (92.37±3.13 versus 91.09±3.22). However, the mean yolk/albumen ratio was similar (P>0.05). The phenotypic correlation coefficients between egg weight and egg quality indices in both genetic groups ranged from low to high values [-0.05-0.95 (indigenous); -0.19-0.96 (French strain)]. Three principal components sufficiently accounted for the variations in the egg quality traits of both genetic groups. The CHAID algorithm was more consistent in egg weight prediction with egg width as the primary explanatory variable. The present information may guide breeding and management strategies geared towards the improvement of the reproductive and egg quality traits of the helmeted guinea fowls.

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Guinea fowl eggshell structural analysis at different scales reveals how organic matrix induces microstructural shifts that enhance its mechanical properties

Rodríguez-Navarro,

Domínguez-Gasca,

Athanasiadou

et al. 2024

Acta Biomaterialia

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Effect of pearl guinea fowl eggshell ultrastructure and microstructure on keets hatchability

Cited by 6 publications

References 33 publications

Comparative Analysis of the Ultrastructure, Bubble Pores, and Composition of Eggshells of Dwarf Layer-White and Guinea Fowl

Comparative Analysis of the Ultrastructure, Bubble Pores, and Composition of Eggshells of Dwarf Layer-White and Guinea Fowl

Fertility, Hatchability and Prediction of Egg Weight from Egg Quality Indices of Nigerian Helmeted Guinea Fowls and the French Strain

Guinea fowl eggshell structural analysis at different scales reveals how organic matrix induces microstructural shifts that enhance its mechanical properties

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