[Liu, Jing-Cai; Lai, Fang-Nong] Qingdao Agr Univ, Coll Life Sci, Qingdao 266109, Peoples R China.
[Liu, Jing-Cai; Lai, Fang-Nong; Ma, Jun-Yu; Liu, Xue-Lian; Shen, Wei; Li, Lan; Zhang, Xi-Feng] Qingdao Agr Univ, Inst Reprod Sci, Coll Anim Sci & Technol, Key Lab Anim Reprod & Germplasm Enhancement Univ, Qingdao 266109, Peoples R China.
[Chen, Hong; Li, Lan] Northwest A&F Univ, Coll Anim Sci & Technol, Yangling 712100, Peoples R China.
[Liu, Yu-Ping] Qingdao Agr Univ, Hosp Sch, Qingdao 266109, Peoples R China.
[Zhang, Xi-Feng] Wuhan Polytech Univ, Coll Biol & Pharmaceut Engn, Wuhan 430023, Peoples R China.