In most swine-producing areas, large groups of pigs are
housed under intensive conditions, often in geographical
regions with a dense pig population. High stocking
density in a closed environment facilitates transmission
of airborne pathogens within a herd and between herds Worldwide, respiratory
diseases continue to cause substantial losses to the
swine industry. Financial losses are often due to increased mortality;
decreased weight gain; increased feed costs;
increased condemnation at slaughter; and increased
costs for treatments, vaccination, and labor. Consequently,
respiratory diseases are regarded as some of
the most serious disease problems in modern swine
production
In most swine-producing areas, large groups of pigs arehoused under intensive conditions, often in geographicalregions with a dense pig population. High stockingdensity in a closed environment facilitates transmissionof airborne pathogens within a herd and between herds Worldwide, respiratorydiseases continue to cause substantial losses to theswine industry. Financial losses are often due to increased mortality;decreased weight gain; increased feed costs;increased condemnation at slaughter; and increasedcosts for treatments, vaccination, and labor. Consequently,respiratory diseases are regarded as some ofthe most serious disease problems in modern swineproduction
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