Reuters — Confirmed cases of porcine epidemic diarrhea (PED) increased by 296 in the week ended March 15, bringing the total number to 4,757, according to data released on Thursday by the U.S. Department of Agriculture’s National Animal Health Laboratory Network (NAHLN).
The U.S. and Canadian hog industries have recently developed partnerships to research what role, if any, feed or feed ingredients have had in the transmission of the PED virus (PEDv), the National Pork Board said earlier this week. The report from USDA’s NAHLN does not include test results from feed samples.
No new states reported cases, leaving the number of affected states at 27, the group of animal researchers said.
While one case can represent an individual animal or an entire herd at a single site, hog industry analysts estimate PEDv has killed an estimated five million U.S. hogs since it was discovered in May 2013.
“Unfortunately it has spread rapidly this winter, especially here in Ohio,” said Duane Stateler, Ohio Pork Council president and hog producer with a 7,200-head operation.
The virus, which was first confirmed in Canada in January, has so far been confirmed in hogs on 35 farms in southern Ontario and one farm each in Manitoba, Quebec and Prince Edward Island. Ontario’s most recent case was confirmed Wednesday on a hog nursery operation in Huron County.
PEDv, which does not affect humans and is not a food safety risk, causes diarrhea, vomiting and severe dehydration in pigs. While older pigs are more likely to survive the symptoms, 80 to 100 per cent of piglets that contract it die.
“The smaller the pig the harder it is for them to recover and come back,” Stateler said.
The U.S. hog industry has grappled with tactics to contain the spread of the highly contagious pig virus using strict biosecurity measures as its main line of defense.
The spread of the virus has already crimped market ready hog supply not only in the U.S. Midwest but also along the East Coast, forcing some pork packing plants to reduce slaughter operations.
There is talk in the hog industry of some Midwest pork packing facilities considering several operations of either cutting one day a week, trimming daily operating hours, or eliminating Saturdays and overtime in order to reduce total operating hours, hog dealers have said.
Last week, Smithfield Foods suspended hog slaughter on Friday at its Tar Heel, N.C. plant which has a slaughter capacity of 30,000 to 34,000 head, as PEDv has tightened hog supplies, industry sources said.
— Reporting for Reuters by Meredith Davis in Chicago. Includes files from AGCanada.com Network staff.