豬隻相關資料
AMI - American Meat Institute
Livestock Conservation Institute
CPC - Canadian Pork Council
NebGuide Swine Index (University of Nebraska)
CPI - Canadian Pork International
NMA - National Meat Association
CSBA - Canadian Swine Breeders Association
NPPC - National Pork Producers Council
Pig Page
SWINE-L (Swine Production Discussion List Archives)
SWINE-L FAQ
ISAGRI
Dairy Software - Univ of Maryland