Results 31 to 40 of about 5,109 (183)

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
doaj   +1 more source

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

Poultry 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, Elisa Folegatti, Nazaret Dominguez-Gasca, Gilberto Litta, Estefania Sanchez-Rodriguez, Alejandro B. Rodriguez-Navarro, Murtala Umar Faruk   +6 more
doaj   +1 more source

Eggshell thickness and egg morphometrics in five songbird species from the Central Valley, California

Journal of Field Ornithology
Avian eggshell thickness is an important life history metric in birds and has broad applications across disciplines ranging from animal behavior to toxicology.
Carley R. Schacter, Sarah H. Peterson, C. Alex Hartman, Mark P. Herzog, Joshua T. Ackerman   +4 more
doaj   +1 more source

The partial replacement of sodium chloride with sodium bicarbonate or sodium sulfate in laying hen diets improved laying performance, and eggshell quality and ultrastructure

Poultry Science, 2021
: This study investigated the effects of dietary chloride (Cl) reduction on laying performance and eggshell quality by substitution of sodium bicarbonate (NaHCO3) or sodium sulfate (Na2SO4) for part of dietary sodium chloride (NaCl), and further explored
Yu Fu, Jing Wang, Hai-jun Zhang, Shu-geng Wu, Jian-min Zhou, Guang-hai Qi   +5 more
doaj   +1 more source

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

Animals, 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, Cristina Benavides-Reyes, Jon de los Mozos, Nazaret Dominguez-Gasca, Estefanía Sanchez-Rodríguez, Ana Isabel Garcia-Ruiz, Alejandro B. Rodriguez-Navarro   +6 more
doaj   +1 more source

Comparison of different eggshell thickness measurement methods

TURKISH JOURNAL OF VETERINARY AND ANIMAL SCIENCES, 2020
This study was conducted to examine how various methods affect the results of eggshell thickness measurements.Direct and indirect measurements were performed on 700 table eggs which were daily collected from the same flock. The shell thickness of the eggs was calculated according to a logarithm which uses egg weight.
Abdulkadir ARSLAN, Umut Sami YAMAK
openaire   +1 more source

Gene Polymorphisms are Associated with Eggshell Ultrastructure Organization in Hens

Brazilian Journal of Poultry Science
Background: Eggshell ultrastructure organization, including effective layer thickness, mammillary layer thickness, and average size of mammillary cones, is important for breeding and significantly influences eggshell mechanical properties.
D Wang, B Liao, Q Zhang, JS Liu, Z Duan, Z Hou, Z Ning   +6 more
doaj   +1 more source

Aqueous Two‐Phase Bioinks for Discrete Packing and Compartmentalization of 3D Bioprinted Cells

Advanced Healthcare Materials, EarlyView.
Aqueous two‐phase systems (ATPS) enable the formation of biomimetic interfaces crucial for tissue engineering. However, clinical translation remains limited by the challenge of precisely controlling cellular compartmentalization. Here, we developed ATPS biomaterial inks for 3D bioprinting allowing tuneable droplet formation via NaCl modulation.
Martina Marcotulli, Arianna Iacomino, Federico Serpe, Lucia Iafrate, Marco Bastioli, Giorgia Montalbano, Michele D'Orazio, Biagio Palmisano, Silvia Franco, Arianna Mencattini, Roberta Angelini, Eugenio Martinelli, Alessandro Corsi, Mara Riminucci, Giancarlo Ruocco, Chiara Scognamiglio, Andrea Barbetta, Gianluca Cidonio   +17 more
wiley   +1 more source

The Effects of Intrauterine Injection with Prostaglandin F2α, Arachidonic Acid and Phosphate Solution on the Eggshell Formation of Japanese Quail Hen

The Journal of Poultry Science, 2002
Inhibitory effects of prostaglandin F2α, arachidonic acid and phosphate solution on the eggshell formation were investigated in Japanese quail. All injections were performed intrauterinely 8h before the predicted oviposition. Prematurely oviposited
Tomoki Soh, Kiyoshi Yamamoto, Noboru Fujihara, Osamu Koga   +3 more
doaj   +1 more source

Dietary chloride levels affect performance and eggshell quality of laying hens by substitution of sodium sulfate for sodium chloride

Poultry Science, 2020
The objective of this study was to evaluate the effect of dietary chloride (Cl) levels on performance, eggshell mechanical quality, and ultrastructure in layers based on the substitution of sodium chloride (NaCl) by sodium sulfate (Na2SO4). Three hundred
Jing Wang, Hai-jun Zhang, Shu-geng Wu, Guang-hai Qi, Li Xu, Jing Wang   +5 more
doaj   +1 more source