Pig Breeds
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24 Terms
What is a breed?
A group of animals within a species that has been artificially selected to have a uniform, heritable, and distinctive appearance, often emphasizing specific production traits.
What are the two main production focuses in modern swine breeding?
Maternal and Terminal breeds
Maternal breeds
production efficiency & reproductive traits
Terminal breeds
carcass quality & growth traits
What type of traits are emphasized in maternal breeds?
Reproductive efficiency, mothering ability, and litter performance
Where did Chester White originate?
Chester County, Pennsylvania (1818)
Where did Landrace originate and when was it imported to the U.S.?
Originated in Denmark (1895); imported to the U.S. in 1934.
What is the recording rank of the Landrace breed in the U.S.?
5th most recorded breed
Where did Yorkshire originate?
England, County of York; imported to the U.S. around 1830 (Ohio)
What type of traits are emphasized in terminal breeds?
Growth rate, muscling, and carcass quality
Where did Berkshire originate?
Shire of Berks, England (1700s); imported to the U.S. in 1823
What is the recording rank of Berkshire?
3rd most recorded breed
How did the Duroc breed originate?
From Jersey Reds (New Jersey) and Red Durocs (New York)
What is the recording rank of the Duroc breed?
2nd most recorded breed
What is the recording rank of the Hampshire breed?
4th most recorded breed
Where did Poland China originate?
Miami, Butler, and Warren Counties in Ohio (1816)
What is unique about the Spotted breed?
Developed from many breeds (including Poland China); originally called the Warren County Hog
What are commercial swine lines?
Genetically selected lines developed for large-scale commercial pork production
Name an example of a commercial swine genetics company
Choice Genetics
What is PIC USA?
Pig Improvement Company; the largest supplier of seedstock worldwide
What is the genetic makeup of the Camborough sow?
(Yorkshire × Landrace sow) × Duroc → C-15
What is the newest PIC female line mentioned?
C-29
Note 
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