Results 41 to 50 of about 4,931,841 (217)
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 +5 more
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Materials, 2021 The aim of this article is to predict the compressive strength of environmentally friendly concrete modified with eggshell powder. For this purpose, an optimized artificial neural network, combined with a novel metaheuristic shuffled frog leaping ...
Seyed Vahid Razavi Tosee +6 more
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Eggshell appearance does not signal maternal corticosterone exposure in Japanese quail: an experimental study with brown-spotted eggs [PDF]
, 2013 Reproduction is a critical period for birds as they have to cope with many stressful events. One consequence of an acute exposure to stress is the release of corticosterone, the avian stress hormone.
Ivan Mikšík (492331) +31 more
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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 +2 more
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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 +5 more
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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
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Shell formation and bone strength in laying hens [PDF]
, 2013 In Sweden almost 3.8% of all eggs are ruined due to cracked eggshells as shell quality declines with age during the laying period. This is a concern for food safety as well as an economical problem.
Wistedt, Anna
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Role of Ultrastructure in Determining Eggshell Strength
Poultry Science, 1982 Abstract The relationship of eggshell mammillary structure to eggshell strength was studied. Eggshells produced from Single Comb White Leghorn hens of the Cornell high eggshell strength (HES) or low eggshell strength (LES) strains with similar shell thickness (HES: .356 ± .056 mm; LES: .307 ± .006 mm, P>.05) but with significantly different shell ...
B. VAN TOLEDO, A.H. PARSONS, G.F. COMBS
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The effect of Mg concentration to mechanical strength of hydroxyapatite derived from eggshell
, 2021 Hydroxyapatite (HA) of Ca(I)4Ca(II)6(PO4)6(OH)2 is a biomaterial that is currently being developed for several biomedical applications, such as for the reconstruction of hard tissues of human bones and teeth. HA can be synthesized from raw materials that
A. Noviyanti +3 more
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Effect of Eggshell Powder on Sulfate Resistance of Metakaolin Cement-based Materials
Taiyuan Ligong Daxue xuebaoPurposes This work has been carried out to determine the optimal composite mix ratio of eggshell powder and metakaolin as cement replacement materials for simultaneously enhancing the compressive strength of cement mortar and the sulfate resistance of ...
HU Chunhua, MA Teng
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