Results 11 to 20 of about 15,168 (224)

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

Optimization of Separation Process of Eggshell and Shell Membrane

open access: yesShipin gongye ke-ji, 2023
The two must be separated first to exploit the eggshell and the eggshell membranes. In this paper, a combination of mechanical crushing, water flotation and dilute acid treatment was used for shell membrane separation, and the conditions of eggshell and ...
Hengyang LIU   +5 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

Effect of strontium ranelate and cerium oxide addition in the diet on egg production and eggshell quality in laying hen

open access: yesIndian Journal of Animal Sciences, 2023
Minerals are used widely as feed additives in the diets of poultry to enhance bone and egg quality and productivity. Therefore, the current study aimed to evaluate the impact of strontium ranelate and cerium oxide addition in the diet on egg production ...
PAYAM SADQ SABIR, KAMARAN A ABBAS
doaj   +1 more source

Calcium deposition in egg due to substitution of limestone by eggshell flour in feed of laying hens

open access: yesJournal of the Indonesian Tropical Animal Agriculture, 2018
The aim of this research was to evaluate calcium deposition in egg using eggshell flour as a limestone substitute in feed. Two hundreds laying hen of Isa Brown strain of 25 weeks were used in this study.
S. Kismiati   +4 more
doaj   +1 more source

Polycarboxylated Eggshell Membrane Scaffold as Template for Calcium Carbonate Mineralization

open access: yesCrystals, 2020
Biomineralization is a process in which specialized cells secrete and deliver inorganic ions into confined spaces limited by organic matrices or scaffolds.
José L. Arias   +6 more
doaj   +1 more source

Utilization of Eggshell Membrane and Olive Leaf Extract for the Preparation of Functional Materials

open access: yesFoods, 2021
Eggshell membrane (ESM) is a natural proteinaceous by-product of the food industry, especially in the pasteurized egg industry, resulting in the availability of much discarded egg waste.
Oguz Bayraktar   +5 more
doaj   +1 more source

Avian eggshell thickness in relation to egg morphometrics, embryonic development, and mercury contamination

open access: yesEcology and Evolution, 2020
Eggshell thickness is important for physiological, ecological, and ecotoxicological studies on birds; however, empirical eggshell thickness measurements for many species and regions are limited.
Sarah H. Peterson   +5 more
doaj   +1 more source

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