Results 21 to 30 of about 4,594 (185)

Polymorphism of the SCNN1g Gene and its Association with Eggshell Quality [PDF]

Poultry Science Journal, 2017
Eggshell quality is the main trait to assess egg quality. Marker assisted selection can be used to improve this trait. During eggshell formation, a mass of inorganic minerals is deposited. The Sodium Channel (SCNN1) gene family plays an essential role in
Kheirkhah Z, Hassani S, Zerehdaran S, Ahani Azari M, Sekhavati MH, Salehinasab M   +5 more
doaj   +1 more source

Evaluating the Use of Eggshell Waste Ash in High Strength Concrete [PDF]

Engineering and Technology Journal, 2021
This study aims to determine the effect of incorporating eggshell waste as partial compensation from Portland cement material on high-strength concrete mixtures' performance. The properties studied are workability, compressive and flexural strengths, water absorption, dry density, and thermal conductivity. In the same trend, the environmental impact of
Basim Amanah, Wasan Khalil
openaire   +2 more sources

Dietary supplementation with sodium bicarbonate or sodium sulfate affects eggshell quality by altering ultrastructure and components in laying hens

Animal, 2021
Dietary sodium (Na) levels were related to the content of the eggshell matrix. We therefore speculated that dietary Na supplementation as sodium bicarbonate (NaHCO3) or sodium sulfate (Na2SO4) may improve eggshell quality. Additionally, dietary NaHCO3 or
Y. Fu, H.J. Zhang, S.G. Wu, J.M. Zhou, G.H. Qi, J. Wang   +5 more
doaj   +1 more source

Determinants of eggshell strength in endangered raptors

Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 2009
AbstractWe compared eggshell strength in a group of falcon taxa including the peregrine falcon (Falco peregrinus peregrinus), the red shaheen falcon (F. peregrinus babylonicus), the saker falcon (F. cherrug), the gyr falcon (F. rusticolus) and some interspecific and intraspecific hybrids.
Castilla, Aurora M., Herrel, Anthony, Van Dongen, Stefan, Furio, Naoki, Negro, Juan José   +4 more
openaire   +4 more sources

Effect of Long-Term Selection for Non-Destructive Deformation on Egg Shape in White Leghorns

The Journal of Poultry Science, 2016
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, Keijiro Nirasawa, Christian E. Vincenot, Yoshitaka Nagamine, Kazuyuki Moriya   +4 more
doaj   +1 more source

Evaluation on the rheological and mechanical properties of concrete incorporating eggshell with tire powder

Journal of Materials Research and Technology, 2021
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, Beng Wei Chong, Ramadhansyah Putra Jaya, Mohd Rosli Mohd Hasan, Mohd Mustafa Al Bakri Abdullah, Mohd Haziman Wan Ibrahim   +5 more
doaj   +1 more source

Effect of Uniformity of Eggshell Thickness on Eggshell Quality in Chickens

The Journal of Poultry Science, 2014
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, Cong-Jiao Sun, Ling Lian, Jiang-Xia Zheng, Gui-Yun Xu, Ning Yang   +5 more
doaj   +1 more source

Prediction of Eggshell Ultrastructure via Some Non-destructive and Destructive Measurements in Fayoumi Breed [PDF]

Asian-Australasian Journal of Animal Sciences, 2015
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, A. Galal, A. R. Shemeis   +2 more
doaj   +1 more source

Relationship between eggshell thickness and other eggshell measurements in eggs from litter and cages

Italian Journal of Animal Science, 2018
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

Eggshell structure, measurements, and quality-affecting factors in laying hens: a review

Czech Journal of Animal Science, 2016
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