PoultryUSA - April 2018 - 21
holes, trying to get some natural light. If it's better that's
great, but that's another $18,000 to $15,000 (investment)."
The future of lighting in the broiler house
WATT Global Media's animal welfare panel included
experts from live production and academia. Austin Alonzo
having full intensity light coming from a window and,
therefore, lower intensity darker areas, versus uniform
lighting coming from artificial sources.
While discussing lighting, Shepard said it's critical to
remember the impact changes have on the grower.
"We can't just flippantly change these houses. These
are 50 year investments for these growers," Shepard said.
"Now we're looking at going in there and cutting some
Mench said there is a fair amount of lighting studies conducted focusing on incandescent or florescent lighting. Now,
many farmers are moving to LED lighting technology. LED
presents more potential in its ability to provide a full spectrum of light, and Mench said the full spectrum of light could
possibly bring huge advantages for the birds. However, it's
not well understood how birds perceive LED light.
Another key aspect of welfare related to lighting,
Mench said, is the lack of attention toward the need
for a true, dark period of night in the poultry house.
Researchers are focused on one aspect of lighting, when
they should be thinking more broadly about lighting for
different times of day and the effect of the full light spectrum on the birds. ■
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April 2018 ❙ www.WATTAgNet.com
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