Results 61 to 70 of about 6,967,845 (94)

Optimizing eggshell quality in extended laying periods: Insights and strategies

Animal Nutrition
Extending the laying period in hens offers substantial financial and environmental benefits. However, maintaining stable egg quality, particularly eggshell quality, remains a significant challenge.
Yu Fu, Evelyne Delezie, Guanghai Qi, Jing Wang   +3 more
doaj   +1 more source

Translucent eggs of laying hens: a review

Poultry Science
: Eggshell quality is a significant characteristic that influences consumer preferences. Eggshell translucency is a common defect in the appearance of eggshells, which are characterized by gray spots that are visible to the naked eye under natural light.
Lin Xuan, Jiangxia Zheng
doaj   +1 more source

The effects of eggshell and oyster shell supplemental as calcium sources on performance, eggshell quality and mineral excretion in laying hens

, 2015
A study was conducted to determine the influence of different calcium sources in layer diets on performance, eggshell quality and mineral excretions.
Cufadar, Y., Olgun, Osman, Yildle, Alp Onder, Yildiz, A.Ö., Cufadar, Yusuf, Olgun, O.   +5 more
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Yolk vitamin D content and eggshell quality traits as affected by hen genotype and housing system

, 2023
A novel approach to fortify egg with vitamin D consists in sunlight exposure of hens as they are capable of endogenous vitamin D synthesis. The present study aimed to investigate the yolk vitamin D content and the eggshell quality traits of 5 hen ...
Castellini C., Zampiga M., Sirri F., Piscitelli R., Alamprese C., Cartoni Mancinelli A., Petracci M.   +6 more
core   +1 more source

Dietary factors improving eggshell quality: an updated review with special emphasis on microelements and feed additives

, 2017
Dietary factors improving eggshell quality: an updated review with special emphasis on microelements and feed additives . 17.
Nys, Yves, Duclos, Michel Jacques, M.J., Gloux, Audrey   +2 more
core  

The effect of essential oils on quality and mineral composition of eggshell

, 2017
The aim of study was to analyse the dietary effect of pumpkin and flaxseed oils on quality and mineral composition of laying hens eggshell. At 38 weeks of age, Lohmann Brown Lite hens were housed in three-floor cages, divided into three dietary groups ...
Branislav, Milan, Miroslav, Michal, Daniel, Henrieta, Róbert, Ondrej   +7 more
core   +1 more source

Eggshell Biomineralization and Genetic Regulation of Eggshell Strength of Laying Hens

Agriculture
Eggshell quality profoundly affects egg commercial value, storage performance and food safety, and its late-period deterioration restricts the sustainable production of long-cycle laying hens.
Xiaoke Zhang, Yunlei Li, Jilan Chen
doaj   +1 more source

Eggshell quality in extended laying cycle

International audienceTo improve sustainability of egg production, current practices in the table egg industry aim at lengthening the egg laying cycle of commercial hens from 70-80 to about 100 weeks of age.
Mignon-Grasteau, Sandrine, Nys, Yves, Jimenez, Justine, Gautron, Joël, Chesse, Magali, Guyot, Nicolas   +5 more
core   +2 more sources

Assessment of Eggshell Quality Before and After Incubation from 29 and 46 Weeks-old Leghorn Hens

, 2011
Eggshell quality is based mainly upon two important characteristics; its thickness and weight. This study has as an objective to determine the changes in eggshell quality before and after incubation and it consisted of two experiments with 29 and 46 ...
Rosales, Sergio Gomez, Casaubon H., Ma Therese, Quintana L, Jose A., Abarca B., Luis D.   +3 more
core   +1 more source

Decreased eggshell strength caused by impairment of uterine calcium transport coincide with higher bone minerals and quality in aged laying hens

Journal of Animal Science and Biotechnology
Background Deteriorations in eggshell and bone quality are major challenges in aged laying hens. This study compared the differences of eggshell quality, bone parameters and their correlations as well as uterine physiological characteristics and the bone
Yu Fu, Jianmin Zhou, Martine Schroyen, Haijun Zhang, Shugeng Wu, Guanghai Qi, Jing Wang   +6 more
doaj   +1 more source