Results 1 to 10 of about 430,783 (266)

Validation of a Radio frequency identification system for tracking location of laying hens in a quasi-commercial aviary system

Peer Community Journal, 2023
Cage-free housing is increasingly chosen in Europe, North America, and Australia as an animal-welfare friendly farm system for laying hens. However, hens are kept in large numbers in those systems which makes checking for health and welfare difficult and
Gebhardt-Henrich, Sabine G., Kashev, Alexander, Petelle, Matthew B., Toscano, Michael J.   +3 more
doaj   +1 more source

Similarity in Temporal Movement Patterns in Laying Hens Increases with Time and Social Association

Animals, 2022
We explored the relationship between social associations and individual activity patterns in domestic hens. Out of 1420 laying hens, 421 hens were equipped with RFID tags attached to RFID-specific leg bands (leg bands from Company Roxan, Selkirk ...
Yamenah Gómez, John Berezowski, Yandy Abreu Jorge, Sabine G. Gebhardt-Henrich, Sabine Vögeli, Ariane Stratmann, Michael Jeffrey Toscano, Bernhard Voelkl   +7 more
doaj   +1 more source

Perch Positioning Affects both Laying Hen Locomotion and Forces Experienced at the Keel

Animals, 2020
The aim of this study was to assess the effect of perch positioning on laying hens’ locomotion and the resulting energy experienced at the keel. Twenty Nick Chick and 20 Brown Nick hens were trained to transition from a platform to a perch in several ...
Christina Rufener, Ana K. Rentsch, Ariane Stratmann, Michael J. Toscano   +3 more
doaj   +1 more source

Evaluation of an Active LF Tracking System and Data Processing Methods for Livestock Precision Farming in the Poultry Sector

Sensors, 2022
Tracking technologies offer a way to monitor movement of many individuals over long time periods with minimal disturbances and could become a helpful tool for a variety of uses in animal agriculture, including health monitoring or selection of breeding ...
Camille Marie Montalcini, Bernhard Voelkl, Yamenah Gómez, Michael Gantner, Michael J. Toscano   +4 more
doaj   +1 more source

Skeletal variation in bird domestication: limb proportions and sternum in chicken, with comparisons to mallard ducks and Muscovy ducks [PDF]

PeerJ, 2022
Background Domestication, including selective breeding, can lead to morphological changes of biomechanical relevance. In birds, limb proportions and sternum characteristics are of great importance and have been studied in the past for their relation with
Carlos Manuel Herrera-Castillo, Madeleine Geiger, Daniel Núñez-León, Hiroshi Nagashima, Sabine Gebhardt-Henrich, Michael Toscano, Marcelo R. Sanchez-Villagra   +6 more
doaj   +2 more sources

Groups and Individuals: Optical Flow Patterns of Broiler Chicken Flocks Are Correlated with the Behavior of Individual Birds

Animals, 2021
Group level measures of welfare flocks have been criticized on the grounds that they give only average measures and overlook the welfare of individual animals. However, we here show that the group-level optical flow patterns made by broiler flocks can be
Sabine G. Gebhardt-Henrich, Ariane Stratmann, Marian Stamp Dawkins   +2 more
doaj   +1 more source

Detection of polymorphisms and protein domain architectures in rabbit toll-like receptor 2

World Rabbit Science, 2014
Toll-like receptors (TLRs) recognise pathogen-associated molecular patterns (PAMPs) derived from pathogens and participate in activation of the immune responses. The TLR2 gene can recognise PAMPs specific to bacterial diseases such as pneumonia.
Zhang X. Y., Lei M., Xie L., Zhang C. X., Zheng J., Yang C., Deng X. D., Li J. L., Huang D. P., Xie X. H.   +9 more
doaj   +1 more source

EFFECT OF SEASON ON GROWTH PERFORMANCE AND IMMUNITY TRAITS IN RABBITS [PDF]

Arab Universities Journal of Agricultural Sciences, 2018
The present study was carried out to investigate the effect of season on growth performance traits, leptin hormone concentration and gene expression for innate immunity in response to vaccination against pasteurellosis. A Total of 384 weaned rabbits were
Yasmein Abdel-Ghafar, I. El-Wardany, Marwa Abdo, Samah Darwish, E. Abd El-Kafy   +4 more
doaj   +1 more source

Limited Associations between Keel Bone Damage and Bone Properties Measured with Computer Tomography, Three-Point Bending Test, and Analysis of Minerals in Swiss Laying Hens

Frontiers in Veterinary Science, 2017
Keel bone damage is a wide-spread welfare problem in laying hens. It is unclear so far whether bone quality relates to keel bone damage. The goal of the present study was to detect possible associations between keel bone damage and bone properties of ...
Sabine G. Gebhardt-Henrich, Andreas Pfulg, Ernst K. F. Fröhlich, Susanna Käppeli, Dominik Guggisberg, Annette Liesegang, Michael H. Stoffel   +6 more
doaj   +1 more source

Efficacy of the Newcastle Disease Virus Genotype VII.1.1-Matched Vaccines in Commercial Broilers

Vaccines, 2021
Class II genotype VII Newcastle disease viruses (NDV) are predominant in the Middle East and Asia despite intensive vaccination programs using conventional live and inactivated NDV vaccines.
Hesham A. Sultan, Wael K. Elfeil, Ahmed A. Nour, Laila Tantawy, Elsayed G. Kamel, Emad M. Eed, Ahmad El Askary, Shaimaa Talaat   +7 more
doaj   +1 more source