Results 81 to 90 of about 7,593 (253)

Different Maternal Quality Aspects Covary With the Offspring Sex Ratio and Condition in Bearded Reedlings (Panurus biarmicus)

Ecology and Evolution, Volume 15, Issue 12, December 2025.
Our results suggest that in bearded reedlings (Panurus biarmicus), offspring sex is related to maternal body size, which reflects intrinsic quality, but not to maternal health or body mass. The sex ratio of extra‐pair offspring did not deviate from an equal distribution; however, nestlings fathered by extra‐pair males were in better condition than ...
Herbert Hoi, Ján Krištofík, Felix Knauer, Alžbeta Darolová   +3 more
wiley   +1 more source

Teaching Students to Understand Knowledge: Stress‐Testing the ‘Justified True Belief Account’ for Critical Thinking

Future in Educational Research, Volume 3, Issue 4, Page 569-579, December 2025.
ABSTRACT This conceptual essay, grounded in a close reading of Plato's Theaetetus, argues that before educators can effectively operationalise critical thinking as the rigorous evaluation ('stress‐testing') of competing knowledge claims, university students must first understand foundational epistemological principles rooted in Plato's tripartite ...
Gerry Dunne
wiley   +1 more source

Effects of laying hens housing system on laying performance, egg quality characteristics, and egg microbial contamination

Czech Journal of Animal Science, 2014
The objective of this study was to compare the performance, egg quality, and microbial contamination of egg shells from hens maintained in different housing systems, such as conventional and enriched cages, litter, and aviaries.
M. Englmaierová, E. Tůmová, V. Charvátová, M. Skřivan   +3 more
doaj   +1 more source

Providing elevated structures in the pullet rearing environment affects behavior during initial acclimation to a layer aviary

Poultry Science
: Spatial abilities of hens are particularly sensitive to development during early life. Experiences in pullet housing may have lasting consequences on adult hens’ movements in cage-free environments.
Allison N. Pullin, Christina B. Rufener, Suzanne T. Millman, John F. Tarlton, Michael J. Toscano, Richard A. Blatchford, Maja M. Makagon   +6 more
doaj   +1 more source

The influence of housing systems on the air quality and bacterial eggshell contamination of table eggs

Czech Journal of Animal Science, 2010
This paper compares two different housing systems for laying hens producing table eggs, namely a conventional cage system and an aviary, during three summer months, starting from the 20th week of the production cycle.
M. Vučemilo, B. Vinković, K. Matković, I. Štoković, S. Jakšić, S. Radović, K. Granić, Đ. Stubičan   +7 more
doaj   +1 more source

Influence of genetic strain and access to litter on spatial distribution of 4 strains of laying hens in an aviary system1

Poultry Science, 2016
Many laying hen producers are transitioning from conventional cages to new housing systems including multi-tier aviaries. Aviary resources, such as litter areas, are intended to encourage hens’ expression of natural behaviors to improve their welfare ...
A. Ali, D. Campbell, D. Karcher, J. Siegford   +3 more
semanticscholar   +1 more source

Hen genetic strain and extended cold storage influence on physical egg quality from cage‐free aviary housing system

Poultry Science, 2018
In the United States, there is an increase in need for cage‐free eggs in retail and food manufacturing sectors. Understanding the impact of cage‐free systems and the corresponding management on egg quality is pertinent as the U.S.
Deana R. Jones, D. Karcher, P. Regmi, C. Robison, R. Gast   +4 more
semanticscholar   +1 more source

Assessing environmental control strategies in cage-free aviary housing systems: Egg production analysis and Random Forest modeling

Computers and Electronics in Agriculture, 2022
A. F. Gonzalez-Mora, A. Rousseau, A. Larios, S. Godbout, S. Fournel   +4 more
semanticscholar   +1 more source

A Description of Laying Hen Husbandry and Management Practices in Canada

Animals, 2018
Canadian laying hen farms are transitioning from conventional cage housing to furnished cage and non-cage housing systems to improve laying hen welfare. However, little is known about the current housing and management systems in Canada.
Nienke van Staaveren, Caitlin Decina, Christine F. Baes, Tina M. Widowski, Olaf Berke, Alexandra Harlander-Matauschek   +5 more
doaj   +1 more source

THERMAL PERFORMANCE OF AVIARY PROTOTYPES FITTED WITH OSB PANEL CEILING MADE OF BALSA WOOD WASTES

Revista Brasileira de Engenharia de Biossistemas, 2019
This study describes the potential of using an OSB panel ceiling, made of Balsa wood wastes agglomerated with a polyurethane resin based on castor oil, in prototypes of aviaries covered with fiber cement tiles.
G. Barbirato, W. L. Junior, D. C. Oliveira, E. Nagata, F. L. Caneppele, J. Fiorelli   +5 more
semanticscholar   +1 more source