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last update:Sep 25, 2006
Small hog lots avoid a lot of salmonella
Two researchers from Iowa State University
found that the prevalence of salmonella in small pig operations is typically
minor.
Isabel Harris and Matthew Erdmann, along with a group of other researchers,
surveyed 50 traditional family farms in the Mid-West ranging in size from 20 to
150 sows. The pigs were all raised on open lots using management procedures with
varying risks of contributing to salmonella. None of the farms used
antibiotics.
They found that those practices alone did not
necessarily lead to a low salmonella prevalence. The research indicated that
practices like the use of meal feed and straw bedding, low stocking densities
and rodent control all contribute to control
salmonella
levels.
Another practice suggested is the 'all-in, all-out' procedure after which
the facility is properly cleaned. This helps prevent infection in new animals.
According to the
Iowa State
University study, about 42% of small farms surveyed use the all-in, all-out
method.
Editor PigProgress
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