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Broiler - Chicken, sometimes called fryers, reared primarily for meat production. Age to market weight is typically 6 to 8 weeks (5 to 8 pounds), and are the epitome of efficient meat production.
Cooling - Using ventilation to prevent hens from becoming too hot.
Corn Belt - The area of the United States where corn is a principal cash crop, including Iowa, Indiana, most of Illinois, and parts of Kansas, Missouri, Nebraska, South Dakota, Minnesota, Ohio, and Wisconsin.
Environmental Control - Temperature control in poultry barns.
Legume - Any of thousands of plant species that have seed pods that split along both sides when ripe. Some of the more common legumes used for human consumption are beans, lentils, peanuts, peas, and soybeans. Others, such as clover and alfalfa, are used as animal feed. Legumes have a unique ability to obtain much or all of their nitrogen requirements from symbiotic nitrogen fixation.
Litter - Substance applied to dirt or concrete flooring systems that is absorbent in nature, including: wood shavings, rice hulls, chopped straw, sand, sawdust, oat hulls, and several other materials.
Marketing - Increasing awareness of a product by advertising.
Mechanical Ventilation - The use of fans, either electric or pneumatic, to ventilate houses.
Molting - The process of shedding and then regrowing feathers in laying hens. It corresponds with a period of no egg laying.
Natural Ventilation - Air circulation is provided by opening barn doors or windows and allowing the wind to draw through the barn.
Poult - A baby turkey.
Tunnel Ventilation - Placement of large fans at end of building to draw air from one end to the other.
Ventilation - The circulation of air through a building in order to expel noxious air and admit clean, fresh air.