Results 31 to 40 of about 202,210 (324)
Scientific Reports, 2021 To access resources in commercial laying houses hens must move between levels with agility to avoid injury. This study considered whether providing ramps during rear improved the ability of birds to transition between levels.
Kate I. Norman +3 more
doaj +1 more source
Collective turns in jackdaw flocks: kinematics and information transfer
Journal of the Royal Society Interface, 2019 The rapid, cohesive turns of bird flocks are one of the most vivid examples of collective behaviour in nature, and have attracted much research. Three-dimensional imaging techniques now allow us to characterize the kinematics of turning and their group ...
Hangjian Ling +7 more
semanticscholar +1 more source
Nonmutual torques and the unimportance of motility for long-range order in two-dimensional flocks. [PDF]
Physical Review E, 2016 As the constituent particles of a flock are polar and in a driven state, their interactions must, in general, be fore-aft asymmetric and nonreciprocal. Within a model that explicitly retains the classical spin angular momentum field of the particles we ...
Lokrshi Prawar Dadhichi +4 more
semanticscholar +1 more source
Revista Mexicana de Biodiversidad, 2011 Mixed bird flocks are groups of individuals from different species that travel and forage together. Such groups are common in several bird communities around the world. We present species composition and activity patterns of mixed bird flocks in a region
Enrique Arbeláez-Cortés +2 more
doaj +1 more source
Reciprocal relationships in collective flights of homing pigeons [PDF]
, 2011 Collective motion of bird flocks can be explained via the hypothesis of many wrongs, and/or, a structured leadership mechanism. In pigeons, previous studies have shown that there is a well-defined hierarchical structure and certain specific individuals ...
D. J. T. Sumpter +6 more
core +2 more sources
Statistical mechanics for natural flocks of birds [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2011 Flocking is a typical example of emergent collective behavior, where interactions between individuals produce collective patterns on the large scale. Here we show how a quantitative microscopic theory for directional ordering in a flock can be derived ...
W. Bialek +6 more
semanticscholar +1 more source
Antimicrobial Use in On-Farm Hatching Systems vs. Traditional Hatching Systems: A Case Study
Animals, 2023 On-farm hatching is a relatively new method in the broiler industry, in which fertilized broiler eggs are transported to the farms at the stage of 17–19 days of incubation. Once hatched, the broiler chicks have direct access to feed and water.
Julia G. Jerab +6 more
doaj +1 more source
Collective decision making in cohesive flocks [PDF]
, 2010 Most of us must have been fascinated by the eye catching displays of collectively moving animals. Schools of fish can move in a rather orderly fashion and then change direction amazingly abruptly. There are a huge number of further examples both from the
Chamley C P +2 more
core +2 more sources
Sero-Epidemiological Survey of Egg-Transmitted Bacterial Diseases in Broiler Breeder Flocks in Korea
The Journal of Poultry Science, 2014 The purpose of this study was to investigate the immune status or infection rates for primary egg-transmitted bacterial diseases such as pullorum disease-fowl typhoid (PD-FT), Mycoplasma gallisepticum (MG) infection, and Mycoplasma synoviae (MS ...
Jae-Keun Cho +5 more
doaj +1 more source
The Veterinary Record, 2017 Footpad dermatitis and hockburn are serious welfare and economic issues for the production of broiler (meat) chickens. The authors here describe the use of an inexpensive camera system that monitors the movements of broiler flocks throughout their lives ...
M. Dawkins +4 more
semanticscholar +1 more source