Polymorphisms of LIF Gene and Their Effects on Reproductive Traits in Large White Sows

• LIU Bixia, 
• YANG Shanhai, 
• YAN Dawei, 
• LI Zhongchang, 
• ZHANG Yanlin, 
• JI Chunlyu, 
• DONG Xinxing, 
• LAN Guoxiang, 
• LI Mingli, 
• LU Shaoxiong