By Michael Czarick
& Dr. Brian Fairchild
Special to Poultry Times
ATHENS, Ga. — As target bird sizes continue to increase so does the difficulty in keeping the birds cool during hot weather. Whereas 400 to 500 feet/minute has traditionally worked well for smaller broilers, today’s larger 8-pound+ birds can require substantially higher air speeds to keep them growing during the summer months. Growers are often increasing their tunnel fan capacity 50 percent or more in their older houses to obtain air speeds of 600, 700, or even 800 feet/minute. It is often. . .
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