Results 21 to 30 of about 59,744 (316)

Legacy pollutants are declining in Great Skuas (Stercorarius skua) but remain higher in Faroe Islands than in Scotland [PDF]

open access: yes, 2016
To monitor environmental pollutants in Faroese biota, samples from a top predator were analysed and put into a spatial and temporal context. Analysis of 20 Great Skua eggs sampled in 2012 from the Faroe Islands showed >70 % lower concentrations of ...
Alonso, Sarah   +5 more
core   +2 more sources

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

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

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

Development of Polyester/Eggshell Particulate Composites [PDF]

open access: yesTribology in Industry, 2012
The development of Polyester/Eggshell particulate composites has been carried out. Uncarbonized and carbonized eggshell particles were used as reinforcement in polyester matrix.
S.N. Patrick   +2 more
doaj  

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

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

Advances in eggshell membrane separation and solubilization technologies

open access: yesFrontiers in Veterinary Science, 2023
Eggshell membranes (ESM) contain 90% protein, 3% lipids, 2% sugars, and small amounts of minerals such as calcium and magnesium. Of the 90% of proteins present, 472 proteins species have been identified.
Chunhao Han   +7 more
doaj   +1 more source

Research progress on bird eggshell quality defects: a review

open access: yesPoultry Science, 2023
: The eggshell quality declined with extending of chicken laying cycles. Eggshell quality is a crucial feature that not only affects consumer preference, but also influences producers’ economic profitability.
Xue Cheng, Zhonghua Ning
doaj   +1 more source

Egg shape changes at the theropod–bird transition, and a morphometric study of amniote eggs [PDF]

open access: yes, 2014
The eggs of amniotes exhibit a remarkable variety of shapes, from spherical to elongate and from symmetrical to asymmetrical. We examine eggshell geometry in a diverse sample of fossil and living amniotes using geometric morphometrics and linear ...
Abramoff MD   +14 more
core   +1 more source

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