Precision livestock farming applications (PLF) for grazing animals

C Tzanidakis, O Tzamaloukas, P Simitzis, P Panagakis - Agriculture, 2023 - mdpi.com
Over the past four decades the dietary needs of the global population have been elevated,
with increased consumption of animal products predominately due to the advancing …

Free-range egg production: its implications for hen welfare

DLM Campbell, MS Bari, JL Rault - Animal Production Science, 2020 - CSIRO Publishing
Free-range laying hen housing systems are prevalent in Australia and perceived by
consumers to provide greater opportunities for the expression of natural behaviour resulting …

Application of open field, tonic immobility, and attention bias tests to hens with different ranging patterns

DLM Campbell, EJ Dickson, C Lee - PeerJ, 2019 - peerj.com
Assessment of negative affective states is a key component of animal welfare research. In
laying hens, excessive fearfulness results in reduced production and increased sensitivity to …

Rearing enrichments affected ranging behavior in free-range laying hens

DLM Campbell, TR Dyall, JA Downing… - Frontiers in Veterinary …, 2020 - frontiersin.org
Within Australia, free-range systems are prevalent, but pullets destined for range access are
reared indoors. This mismatch between rearing and layer housing may hinder adaptation to …

Effects of outdoor ranging on external and internal health parameters for hens from different rearing enrichments

MS Bari, YCSM Laurenson, AM Cohen-Barnhouse… - PeerJ, 2020 - peerj.com
In Australia, free-range layer pullets are typically reared indoors, but adult layers go
outdoors, and this mismatch might reduce adaptation in laying environments. Enrichments …

Easier said than done! Organic farmers consider free-ranging important for laying hen welfare but outdoor areas need more shelter–important gaps between research …

L Göransson, S Abeyesinghe, S Gunnarsson… - British Poultry …, 2023 - Taylor & Francis
The aim of the present study was to investigate the design and management of free-range
areas and their use by birds on commercial organic laying hen farms in Sweden and to …

[HTML][HTML] Commercial layer hybrids kept under organic conditions: a comparison of range use, welfare, and egg production in two layer strains

KE Wurtz, K Thodberg, A Berenjian, L Foldager… - Poultry science, 2022 - Elsevier
Outdoor range areas provide laying hens with improved opportunities to perform natural
behaviors and increase the available space per bird, however, birds are also exposed to …

Current methods and techniques of beak trimming laying hens, welfare issues and alternative approaches

PC Glatz, G Underwood - Animal Production Science, 2020 - CSIRO Publishing
Beak trimming is used in the egg industry to prevent mortality from cannibalism and
minimise injurious pecking, vent pecking, aggressive pecking at the head and all forms of …

Relationships between rearing enrichments, range use, and an environmental stressor for free-range laying hen welfare

MS Bari, JA Downing, TR Dyall, C Lee… - Frontiers in Veterinary …, 2020 - frontiersin.org
Enrichments during pullet rearing may improve adaptation and welfare of hens as they move
from indoor rearing to a free-range system. Individual variation in outdoor ranging may also …

Relationship between sunlight and range use of commercial free-range hens in Australia

MS Rana, C Lee, JM Lea, DLM Campbell - Plos one, 2022 - journals.plos.org
In Australia, summer brings intense, bright sunlight with high ultraviolet (UV) radiation and
hot temperatures, which might impact free-range hens' ranging outside. To determine how …