Results 11 to 20 of about 17,076 (246)

Eggshell Qualities as Indicative of Eggshell Strength for Layer Selection [PDF]

open access: yesBrazilian Journal of Poultry Science, 2018
The study aimed at investigating which of four traits is the most representative of eggshell strength (destructive eggshell thickness measurement, eggshell weight, egg specific gravity, ultrasonic measurement of eggshell thickness) and could be used for ...
L Kibala   +4 more
doaj   +3 more sources

A heart in an eggshell [PDF]

open access: yesBMJ Case Reports, 2019
A 60-year-old man presented to the cardiology outpatient department with gradually progressive shortness of breath and cough associated with palpitations on exertion for the past 2 years. On physical examination, there was presence of bilateral pitting pedal oedema.
Mumun, Sinha   +3 more
openaire   +2 more sources

Poreless eggshells [PDF]

open access: yesJournal of Clinical Investigation, 2015
The oocyte is the sole source of the female genetic material that will be fertilized by sperm to form an embryo. Many extrinsic and intrinsic factors are critical for oocyte development and survival; however, these mediators are incompletely understood. In this issue of the JCI, Weinberg-Shukron et al. uncover a novel recessive missense mutation in the
Haifan, Lin, Martin M, Matzuk
openaire   +2 more sources

Bending Deformation Behavior of Eggshell and Eggshell–Polymer Composites [PDF]

open access: yesJournal of Composites Science, 2023
Deformation behavior of the composite “eggshell–polymer plomb” was examined under bending. Hen eggs were taken as a biological material for experiments. It was shown that a viscoelastic polymer coating does not change the type of deformation behavior of the composite, given that the eggshell continued to be brittle despite its mechanical ...
Panfilov, P.   +3 more
openaire   +1 more source

The structure of the eggshell and eggshell membranes of Crocodylus niloticus

open access: yesJournal of Microscopy, 2023
AbstractThe macro‐ and microstructure, elemental composition, and crystallographic characteristics of the eggshell and eggshell membranes of the Crocodylus niloticus egg was investigated using optical and electron microscopy, energy‐dispersive X‐ray spectroscopy (EDS), electron backscatter diffraction (EBSD) and computerised tomography. The translucent
A V Lensink, G E Swan, J G Myburg
openaire   +3 more sources

Meta-analysis of studies on eggshell concrete using mixed regression and response surface methodology

open access: yesJournal of King Saud University: Engineering Sciences, 2023
Eggshell concrete is an innovative green material that helps to recycle eggshell waste while reducing the environmental harm caused by excessive cement production. However, recent studies on eggshell concrete are limited, and the outcomes may vary due to
Beng Wei Chong   +5 more
doaj   +1 more source

Guinea fowl (Numida meleagris) eggs and free-range housing: a convenient alternative to laying hens' eggs in terms of food safety?

open access: yesPoultry Science, 2021
The aim of this study was to evaluate the impact of the genotype (guinea fowl, native breed Leghorn, and commercial hybrid hens), storage time (0, 14, 28 d) and storage temperature (fresh, 5, 20°C) on eggshell quality traits and microbiological ...
Ondřej Krunt   +5 more
doaj   +1 more source

Genome-wide association study exploring the genetic architecture of eggshell speckles in laying hens

open access: yesBMC Genomics, 2023
Background Eggshell speckle phenotype is an important trait in poultry production because they affect eggshell quality. However, the genetic architecture of speckled eggshells remains unclear.
Xue Cheng   +6 more
doaj   +1 more source

Transcriptomic analysis of the liver in aged laying hens with different eggshell strength

open access: yesPoultry Science, 2023
: Eggshell is composed of a very ordered and mineralized structure and is important for egg quality. Eggshell strength is particularly important because of its direct association with economic outcomes and egg safety.
G.P. Han, J.H. Kim, J.-M. Kim, D.Y. Kil
doaj   +1 more source

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

open access: yesCzech 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

Home - About - Disclaimer - Privacy