A comparison of the various equations published for the estimation of characteristics of hen’s eggs, the importance of reporting the compression rate for shell strength measurements, and distinction between egg specific gravity and density

Hamilton, R. M. G.

doi:10.1080/00439339.2022.2026202

Cited by 6 publications

(2 citation statements)

References 59 publications

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“…Essential parameters like shell density (SD), shell volume (SV), shell specific gravity (SSG), shell ratio (SR) and pore number (PN) were computed using the established formulas cited in the relevant literature [18][19][20][21]23,24].…”

Section: Physical Properties Of Eggsmentioning

confidence: 99%

The Impact of Different Egg Weights on External Egg Quality Characteristics in Turkish Native Geese of the Kars Region

Boğa Kuru,

Kırmızıbayrak

2024

Egyptian Journal of Veterinary Sciences

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HIS aims to assess the impact of varying egg weights on the external egg quality traits of Turkish native geese from the Kars region. A carefully selected set of 250 incubation eggs was utilized, with a focused subset of 60 eggs chosen for a detailed analysis of shell characteristics. Precise egg weight measurements were conducted, followed by categorization into three distinct weight classes: 'light' (<136 g), 'medium' (136-164 g), and 'heavy' (>164 g). Measurements of egg length, width, and other parameters provided the basis for subsequent analyses. Key parameters, including eggshell weight, thickness, density, volume, ratio, and pore number, were calculated and subjected to rigorous statistical analysis. Results revealed statistically significant differences among groups in various aspects, such as egg weight, width, length, volume, and surface area (P<0.001). Similar statistically significant differences were observed for eggshell weight, thickness, and density (P<0.001). The eggshell volume also exhibited significant variations among groups (P<0.001). Eggshell ratio and pore number displayed noteworthy differences between groups, particularly in the comparison between the 'light' and 'heavy' groups (P=0.003). Additionally, a significant negative correlation was identified between egg weight and shell thickness. In conclusion, this comprehensive investigation of egg and eggshell characteristics across different weight categories of Turkish native geese elucidates substantial variations and underscores the intricate interplay between these attributes.

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Section: Physical Properties Of Eggsmentioning

confidence: 99%

The Impact of Different Egg Weights on External Egg Quality Characteristics in Turkish Native Geese of the Kars Region

Boğa Kuru,

Kırmızıbayrak

2024

Egyptian Journal of Veterinary Sciences

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“…The eggs were weighed, the length and breadth were measured, and the shape index was calculated (breadth/length × 100). Specific gravity was estimated using Archimedes' method (Hamilton, 2022).…”

Section: Evaluation Of External Quality Characteristics Of Eggsmentioning

confidence: 99%

Effects of amylin on egg quality traits of hens during the early laying period

Guzel¹

2023

Revista Brasileira De Zootecnia

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Non-ruminantsFull-length research article Effects of amylin on egg quality traits of hens during the early laying period ABSTRACT -This study was conducted to investigate the effects of amylin, a pancreatic hormone polypeptide, on egg quality traits in laying hens. A total of 40 birds (14 wk of age) were randomly divided into two treatments with two replicates, 10 birds in each replicate. Twenty birds were subcutaneously injected with amylin at 75 µg/kg every other day (treatment 1), and the remaining animals (20 hens) were given only water as the control group (treatment 2). Eggs collected from the two groups (140 eggs per group) were examined for several quality performance traits such as egg weight, specific gravity, shape index, eggshell strength, eggshell thickness, eggshell ash, eggshell weight, Haugh unit (HU), albumen index, yolk index, yolk color, and albumen height. The results indicated that amylin had a positive effect on some egg quality traits in laying hens. Specific gravity, eggshell thickness, eggshell weight, HU, albumen index, yolk index, and albumen height, which are all considered as important quality parameters from the consumer point of view, especially HU, were relatively improved in the amylin treatment group. These results showed that the injection of 75 µg/kg amylin has a significant effect on some egg quality traits. Considering that egg quality characteristics are crucial for the egg industry, this study can be a reference for the detailed investigation of the use of amylin in the different stages of egg production.

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Predicting preincubation parameters in goose eggs to reduce their hatching waste

Narushin,

Romanov,

Gressier

et al. 2023

Biosystems Engineering

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A comparison of the various equations published for the estimation of characteristics of hen’s eggs, the importance of reporting the compression rate for shell strength measurements, and distinction between egg specific gravity and density

Cited by 6 publications

References 59 publications

The Impact of Different Egg Weights on External Egg Quality Characteristics in Turkish Native Geese of the Kars Region

The Impact of Different Egg Weights on External Egg Quality Characteristics in Turkish Native Geese of the Kars Region

Effects of amylin on egg quality traits of hens during the early laying period

Predicting preincubation parameters in goose eggs to reduce their hatching waste

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