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A total of 27,712 litters were recorded for the four breeds of Duroc, Hampshire, Landrace and Yorkshire in 2010, with Duroc and Landrace litter registrations accounting for the boost. Both were up significantly, with Landrace recordings reflecting a 10 percent increase over 2009. Although down slightly compared to 2009, the Yorkshire breed still remains number one in total recordings with 11,846 litters cataloged in 2010. Yorkshire registrations have shown tenacity over time - dropping by only 522 litters since 1999 registrations.
Total litter recordings for all eight breeds in the National Association of Swine Records, which include the NSR breeds along with Berkshire, Chester White, Poland China, and Spotted, were also up in 2010, showing a 4.2 percent increase over 2009. This is the first time in five years that the eight breeds accumulatively have reflected an increase. Berkshire led the pack with a 37 percent surge over litters recorded in 2009.
http://www.porkmag.com/news_editorial.asp?pgID=675&ed_id=10417
