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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
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Bending Deformation Behavior of Eggshell and Eggshell–Polymer Composites [PDF]
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
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Optimization of Separation Process of Eggshell and Shell Membrane
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
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Transcriptomic analysis of the liver in aged laying hens with different eggshell strength
: 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
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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
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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
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Calcium deposition in egg due to substitution of limestone by eggshell flour in feed of laying hens
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
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Polycarboxylated Eggshell Membrane Scaffold as Template for Calcium Carbonate Mineralization
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
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Utilization of Eggshell Membrane and Olive Leaf Extract for the Preparation of Functional Materials
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
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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
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