First light for avian embryos: eggshell thickness and pigmentation mediate variation in development and UV exposure in wild bird eggs [PDF]
Article first published online: 29 JUL 20141. The avian embryo's development is influenced by both the amount and the wavelength of the light that passes through the eggshell.
Burley R.W. +13 more
core +2 more sources
Potential of Orange Peel Ash as a Cement Replacement Material [PDF]
The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru +2 more
core +2 more sources
Effect of Long-Term Selection for Non-Destructive Deformation on Egg Shape in White Leghorns
Several conventional traits, including eggshell thickness, are commonly being improved genetically as a means to increase eggshell strength. At the same time, researchers have come to recognize that factors related to egg geometry, such as egg shape ...
Olivier Gervais +4 more
doaj +1 more source
The chicken embryo and its micro environment during egg storage and early incubation [PDF]
When egg storage periods are prolonged (>7 days), hatchability and chick quality declines. The reason for this decline has been investigated, but is still not completely understood.
Brand, H., van den +3 more
core +2 more sources
Effect of Uniformity of Eggshell Thickness on Eggshell Quality in Chickens
Numerous parameters have been proposed to evaluate eggshell quality in order to reduce losses from damaged eggshells. The uniformity of eggshell thickness (UET), as a newly proposed parameter, is defined as the reciprocal of the coefficient of variation
Yi-Yuan Yan +5 more
doaj +1 more source
The construction industry is the largest consumer of raw materials which are under the risk of exhaustion and depletion in the near future, which has prompted the usage of waste materials for the conservation of resource and as a solution for waste ...
Rokiah Othman +5 more
doaj +1 more source
The objective of the present study was to determine the relationship between eggshell thickness and other eggshell characteristics in eggs produced in litter housing system and enriched cages.
Mohamed Ketta, Eva Tůmová
doaj +1 more source
Prediction of Eggshell Ultrastructure via Some Non-destructive and Destructive Measurements in Fayoumi Breed [PDF]
Possibilities of predicting eggshell ultrastructure from direct non-destructive and destructive measurements were examined using 120 Fayoumi eggs collected from the flock at 45 weeks of age.
Lamiaa M. Radwan +2 more
doaj +1 more source
Eggshell structure, measurements, and quality-affecting factors in laying hens: a review
Eggshell quality is one of the most significant factors affecting poultry industry; it economically influences egg production and hatchability. Eggshell consists of shell membranes and the true shell that includes mammillary layer, palisade layer, and ...
M. Ketta, E. Tůmová
doaj +1 more source
A review of the relationship between eggshell colour and water vapour conductance [PDF]
This review brings together the available literature that examines the effect of variations in pigmentation on the gas conductance of avian eggshells. Pheasant and Houbara bustard eggs provide some evidence that shell abnormalities can impact upon colour
Baggott G.K. +14 more
core +1 more source

