Too much DDGS not good for pigmeat
Replacing large amounts of corn with dry distillers'
grains with solubles (DDGS) in swine diets adds excessive unsaturated fatty
acids, said Mickey Latour, a Purdue University Extension animal
Higher than expected levels of unsaturated fatty acids affect the appearance
of bacon and sausage, and could affect taste, Latour said. In addition, the
balance of Omega-6 to Omega-3 fatty acids in the pork products are likely to be
tipped toward unhealthy dietary levels, he said.
"What we've found is
that replacing 10 to 12% of the corn with DDGS in pig diets is doable," Latour
said. "For gilts it may be more in the range of 6 to 8% because gilts tend to
have softer fat relative to barrows.
"DDGS is a
good product for pigs, but you have to be careful how much they are fed," Latour
said. "While beef cattle can consume up to 30%t DDGS without meat degradation,
the same is not true of swine.
Research by Latour and fellow Purdue
animal scientists Brian Richert and Allan Schinckel finds that the pig's unique
body composition turns DDGS into soft fat at rates higher than when the pig is
fed a straight corn-soybean diet.
As the percentage of DDGS fed to a
pig goes up, so, too, does the ratio of Omega-6 to Omega-3 fatty acids.
Excessive levels of Omega-6 are believed to increase the risk of cardiovascular
diseases. Omega-3 fatty acids are known to be healthy fatty
â€¢ Purdue University
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