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Table 1 The British pig breeds

From: Development of a genetic tool for product regulation in the diverse British pig breed market

  Breed Sample size Type Status1 Sampling4
1 Berkshire 73 Traditional At Risk PigBioDiv[15] and USA
2 British Saddleback 30 Traditional Minority PigBioDiv[15]
3 Duroc 31 Commercial   2 European and 2 USA populations[16]
4 Gloucestershire Old Spots 24 Traditional Minority PigBioDiv[15]
5 Hampshire 30 Commercial   PigBioDiv[15]
6 Landrace 30 Commercial   3 European and 2 USA populations[16]
7 Large Black 30 Traditional Vulnerable PigBioDiv[15]
8 Large White 34 Commercial   3 European and 2 USA populations[16]
9 Mangalica 26 European2   PigBioDiv[15]
10 Meishan 24 Asian3   PigBioDiv[15]
11 Middle White 30 Traditional Vulnerable PigBioDiv[15]
12 Pietrain 21 Commercial   2 European and 1 USA populations[16]
13 Tamworth 30 Traditional At Risk PigBioDiv[15]
14 Welsh 33 Traditional At Risk This study
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  1. 1 population status quantified by the number of breeding females: Vulnerable = 300; At Risk = 500; Minority = 1000; taken from Rare Breeds Survival Trust (http://www.rbst.org.uk/watch-list/pigs), 2 first imported to Britain from Hungary in 2006, 3 first imported to Britain from China in 1800s, 4 the sampling protocol is further described in the materials and methods.