U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Main content area

The effect of air velocity on broiler performance and feed and water consumption

May, J.D., Lott, B.D., Simmons, J.D.
Poultry science 2000 v.79 no.10 pp. 1396-1400
broiler chickens, air flow, velocity, ambient temperature, feed intake, liveweight gain, feed conversion, body weight, circadian rhythm, feeding frequency
Two trials were conducted to determine the effect of air velocity on feed and water consumption at a constant temperature of 27 C and a daily cyclic temperature of 22-32-22 C. Air velocity over the broilers was <15 or 120 m/min. These temperature and air velocity treatments were arranged in a 2 x 2 factorial design in eight environmental chambers, with two replications of each treatment. The air velocity treatments were applied, and total feed and water consumption and daily patterns of consumption were determined for broilers from 21 to 49 d of age. Broilers exposed to the high air velocity consumed less water and more feed, gained more weight, and had an improved feed:gain ratio. The high air velocity had little effect on daily patterns of feed and water consumption. Both feed and water consumption were depressed during the peak of the daily cyclic temperature.