Results 1 to 10 of about 6,967,845 (94)

Relationship between Bone Quality, Egg Production and Eggshell Quality in Laying Hens at the End of an Extended Production Cycle (105 Weeks) [PDF]

open access: yesAnimals, 2021
(1) Background: Nowadays the industry aims to improve lay persistency for extended cycles (100 weeks or longer) to make egg production more sustainable.
Clara Alfonso-Carrillo   +6 more
doaj   +5 more sources

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   +3 more sources

Uterine Metabolomic Analysis for the Regulation of Eggshell Calcification in Chickens

open access: yesMetabolites, 2021
Eggshell quality is economically important for table eggs and functionally indispensable for hatching eggs. During the formation of eggshell in the uterus, organic matrixes in uterine fluid can control and modify the formation of calcified eggshell.
Xiqiong Wang   +4 more
doaj   +2 more sources

The Variability of Quality Traits of Table Eggs and Eggshell Mineral Composition Depending on Hens’ Breed and Eggshell Color

open access: yesAnimals, 2021
The aim of the study was to evaluate the relationship between the eggshell color parameters and its mineral composition as well as the internal quality of eggs derived from various breeds of hens, varied by eggshell color: seledine from Araucana, brown ...
Kamil Drabik   +5 more
doaj   +3 more sources

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   +3 more sources

Effect of Uniformity of Eggshell Thickness on Eggshell Quality in Chickens

open access: yesThe 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
doaj   +3 more sources

Research Note: Changes in eggshell quality and microstructure related to hen age during a production cycle

open access: yesPoultry Science, 2021
: We have studied in detail the changes that occur in eggshell structure and composition during a production cycle in order to better understand the deterioration of eggshell quality with hen age (at 33, 45, and 67 wk).
Cristina Benavides-Reyes   +6 more
doaj   +3 more sources

Scanning electron microscope-based evaluation of eggshell quality

open access: yesPoultry Science
: The eggshell is the outermost covering of an egg that provides physical and chemical protection. It is a major source of calcium and minerals for the growing embryo during incubation.
Prem Lal Mahato   +4 more
doaj   +3 more sources

The reasons for the deterioration of chicken eggshell quality at high temperatures: a review [PDF]

open access: yesE3S Web of Conferences, 2021
In hot-climate regions high ambient temperature is one of the main problems of poultry farming. It is a reason for large financial losses caused by a significant decrease in the livability and productivity of poultry and the quality of products.
Kavtarashvili Alexey, Buyarov Viktor
doaj   +1 more source

Guinea fowl (Numida meleagris) eggs and free-range housing: a convenient alternative to laying hens' eggs in terms of food safety?

open access: yesPoultry Science, 2021
The aim of this study was to evaluate the impact of the genotype (guinea fowl, native breed Leghorn, and commercial hybrid hens), storage time (0, 14, 28 d) and storage temperature (fresh, 5, 20°C) on eggshell quality traits and microbiological ...
Ondřej Krunt   +5 more
doaj   +1 more source

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