As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Sunday, 25 October 2015

How chickens walk holds clues to how they spread disease

Date:October 19, 2015
Source:Medical College of Georgia at Georgia Regents University

Plotting on a grid just how a chicken walks may one day give farmers more insight into how best to protect their flock from non-airborne pathogens that can also hurt their profit.

"What this mathematical model tells you at this minute is how a chicken walks, meaning its pattern, how it moves around a pen," said Dr. Arni S.R. Srinivasa Rao, a mathematical modeler in the Department of Biostatistics and Epidemiology at the Medical College of Georgia at Georgia Regents University.

"It's a first step in learning more about how they spread infection and how best to address that," said Rao, corresponding author of a study in Mathematical Methods in the Applied Sciences.

While the resulting complex series of letters, numbers and symbols Rao has developed are likely a mystery to non-math aficionados, they basically show, not the gait, but the walk patterns of the chicken in a pen. Laid out on a grid, the paths chickens take from say the corner of the pen to the food bowl and back, look like a colorful albeit confusing racetrack. But by plotting the patterns and multiplying them by the number of chickens in a pen, the mathematical model may help clarify quite literally how many ways/times chickens cross each other's path -- and re-cross their own -- and the likelihood of disease spread that results.

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