Results 31 to 40 of about 26,916 (317)

Microfocus X-ray scattering investigations of eggshell nanotexture [PDF]

open access: yes, 2005
The avian eggshell is a highly ordered calcitic bioceramic composite, with both inorganic and organic constituents. The interactions between the inorganic and organic components within the structure are poorly understood but are likely to occur at the ...
Bain, M.M., Lammie, D, Wess, T.J.
core   +2 more sources

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

The Effect of Indomethacin on Eggshell Quality

open access: yesPoultry Science, 1991
The objective of the present study was to determine whether indomethacin, an inhibitor of prostaglandin synthesis, could improve shell quality in birds laying a high incidence (greater than 15%) of soft-shelled (SS) and shell-less (SL) eggs and in birds laying exclusively hard-shelled (HS) eggs. Treatments consisted of two injection types, indomethacin
J M, Balog, P Y, Hester
openaire   +2 more sources

The Effects of Egg Shape Index on Egg Quality Traits of Guinea Fowl (Numida meleagris)

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2016
The aim of this study was to investigated the effects of the egg shape index on egg quality characteristics in Guinea fowl. For this, the eggs were classified in terms of egg shape index, as ≤ 75, < 76 -77 > and ≥ 78. A total of 100 Guinea fowl eggs were
Sezai Alkan   +3 more
doaj   +1 more source

Investigating the Effects of Using of Biochar as a Replacement for Minerals Premix in Layers Diet on Physical and Mechanical Properties of Their Egg Shells [PDF]

open access: yesBiomechanism and Bioenergy Research, 2022
Biochar is a mineral compound with a low cost of production. This compound can also be used as a fertilizer in agriculture to help plants grow faster and is a main source of bioenergy for heating and cooking. The goal of this study was to investigate how
Fatemeh Ahmadi   +3 more
doaj   +1 more source

Extracellular Matrix Molecules of the Eggshell as Related to Eggshell Quality [PDF]

open access: yes, 1997
The extracellular matrix of the mineralizing eggshell contains molecules hypothesized to be regulators biomineralization. To study eggshell matrix molecules, a bank of monoclonal antibodies was generated that bound demineralized eggshell matrix or localized to oviduct epithelium.
Mark Pines   +4 more
openaire   +1 more source

The Effect of Eggshell Quality on Hatchability of Pure Chicken Breeds

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Hatchability is affected by a variety of factors. Eggshell quality plays very important role among these factors. In this work we analysed eggshell quality, hatchability and embryonic mortality of pure chicken breeds New Hampshire, Oravka, Plymouth Rock,
Cyril Hrnčár   +2 more
doaj  

The effect of breed and age on the gloss of chicken eggshells

open access: yesPoultry Science, 2020
The monitoring of eggshell quality is important mainly in terms of production economy. Eggshell appearance is one of the most characteristics, influencing the purchasing behavior of consumers.
Quanlin Li   +7 more
doaj   +1 more source

The chicken embryo and its micro environment during egg storage and early incubation [PDF]

open access: yes, 2008
When egg storage periods are prolonged (>7 days), hatchability and chick quality declines. The reason for this decline has been investigated, but is still not completely understood.
Brand, H., van den   +3 more
core   +2 more sources

Effects of Selenium Yeast on Egg Quality, Plasma Antioxidants, Selenium Deposition and Eggshell Formation in Aged Laying Hens

open access: yesAnimals, 2023
Internal egg and eggshell quality are often deteriorated in aging laying hens, which causes huge economic losses in the poultry industry. Selenium yeast (SY), as an organic food additive, is utilized to enhance laying performance and egg quality.
Zhexi Liu   +10 more
doaj   +1 more source

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