Results 61 to 70 of about 7,593 (253)

Dust bathing in laying hens: strain, proximity to, and number of conspecifics matter

Poultry Science, 2020
As housing laying hens in aviaries becomes more common, understanding relationships between social context and performance of key behaviors, such as dust bathing (DB), is important. Expression of behaviors may be increased or repressed by the presence of
Tessa C. Grebey, Ahmed B.A. Ali, Janice C. Swanson, Tina M. Widowski, Janice M. Siegford   +4 more
doaj   +1 more source

Influence of forage substrates on environmental and egg microbiology in cage-free aviary housing

Journal of Applied Poultry Research, 2022
SUMMARY: Within aviary systems, open litter areas are provided to allow hens to express a more robust behavioral repertoire. However, data is limited on the influence forage substrates have on environmental and egg microbiology.
J.S. Garcia, D.R. Jones, R.K. Gast, C.I. Robison, P. Regmi, D.M. Karcher   +5 more
doaj   +1 more source

Parental Age, Inbreeding and Incubation Method Influence Extremely Low Hatching Success in the Ex‐Situ Population of the Extinct in the Wild Sihek

Animal Conservation, EarlyView.
Reproductive success rates are a key parameter determining the recovery potential of ex‐situ managed threatened species, with high rates often being required to produce offspring for wild releases while ensuring ex situ population viability. Here, we quantify reproductive success rates in the Extinct in the Wild sihek (Guam kingfisher) and find ...
Matthew J. Mitchell, Ryan N. Felice, John G. Ewen, Gina M. Ferrie, Erica Royer, Suzanne Medina, Scott Newland, Amanda E. Trask   +7 more
wiley   +1 more source

PARTICULATE MATTER CONCENTRATION AND EMISSION FACTOR IN THREE DIFFERENT LAYING HEN HOUSING SYSTEMS

Journal of Agricultural Engineering, 2009
The aim of this study was to evaluate PM10 concentration in three different laying hens houses (traditional battery cages with aerated open manure storage, aviary system and vertical tiered cages with manure belts with forced air drying) and to evaluate ...
Annamaria Costa, Marcella Guarino
doaj   +1 more source

Wintering Barnacle Geese Exhibit an Increased Behavioural Drive for Sleep After Sleep Deprivation Without a Clear EEG‐Based Sleep Rebound

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep is essential for normal physiological functioning, and sleep deprivation is typically compensated by increasing subsequent sleep duration and/or intensity. However, a recent study showed that barnacle geese (Branta leucopsis) exhibit seasonal variation in sleep homeostasis, with full recovery of sleep after sleep deprivation in summer ...
Robin Pijnacker, Giancarlo Allocca, Alexei L. Vyssotski, Peter Meerlo, Sjoerd J. van Hasselt   +4 more
wiley   +1 more source

Pullet Rearing Affects Collisions and Perch Use in Enriched Colony Cage Layer Housing

Animals, 2020
Hens reared in aviaries (AVI) as pullets have improved spatial abilities compared to hens reared in non-enriched cages (CON). However, this effect on behavior has been shown only to 23 weeks of age.
Allison N. Pullin, S. Mieko Temple, Darin C. Bennett, Christina B. Rufener, Richard A. Blatchford, Maja M. Makagon   +5 more
doaj   +1 more source

Novel Approach to Inter‐Onset‐Interval Ratio Uncovers Music‐Like Rhythmic Patterns in Budgerigar (Melopsittacus undulatus) Warble Song

Annals of the New York Academy of Sciences, EarlyView.
ABSTRACT Rhythm is an essential part of human music. Recently, there has been a surge of interest in the production of rhythmicity in nonhuman animal vocalizations. Novel methods have found widespread rhythmic behaviors—including those with music‐like properties—among nonhuman animals.
Jeroen van der Aa, Günther Koliander, W. Tecumseh Fitch, Marisa Hoeschele   +3 more
wiley   +1 more source

Exposure to increased environmental complexity during rearing reduces fearfulness and increases use of three-dimensional space in laying hens (Gallus gallus domesticus)

Frontiers in Veterinary Science, 2016
The complexity of the rearing environment is important for behavioral development and fearfulness. The aim of this study was to test the hypothesis that laying hens reared in a complex aviary system with exposure to mild intermittent stressors, would be ...
Margrethe eBrantsæter, Janicke eNordgreen, T. Bas Rodenburg, Fernanda Machado Tahamtani, Anastasija ePopova, Andrew M. Janczak   +5 more
doaj   +1 more source

The Genetic and Morphological Basis of Local Adaptation to Elevational Extremes in an Alpine Finch

Ecology and Evolution, Volume 16, Issue 2, February 2026.
We investigated morphological and genetic variation in the Sierra Nevada Gray‐crowned Rosy Finch to identify traits important for local adaptation in alpine environments. By combining trait measurements with genome‐wide analyses, we uncovered loci linked to thermoregulation, altitude adaptation, and cold tolerance.
Erica C. N. Robertson, Timothy M. Brown, Sophie Deitch, Christine M. Bossu, Erika S. Zavaleta, Mevin B. Hooten, Kristen C. Ruegg   +6 more
wiley   +1 more source

Chromatin Profiling Reveals Distinct Male and Female Trajectories for Developmental Learning Potential

Developmental Neurobiology, Volume 86, Issue 1, January 2026.
ABSTRACT Adult patterns of behavior can often be explained by developmental experiences. In some cases, developmental experience can have permanent influence on brain and behavior only during specific ages; these phases are called critical or sensitive periods. Epigenetic mechanisms can regulate both maturational and experiential processes in the brain
Grant W. Kunzelman, Alice Batistuzzo, Sarah E. London   +2 more
wiley   +1 more source