1Thorne P S. Environmental health impacts of concentrated animal feeding operations:anticipating hazards-search-ing for solutions[J].{H}Environmental Health Perspectives,2007.296-297.
2Liu S,Ying G G,Zhou L J. Steroids in a typical swine farm and their release into the environment[J].Water Re-search,2012,(12):3754-3768.
3康白.微生态学原理[M]{H}大连:大连出版社,19962.
4Canibe N,Miettinen H,Jensen B B. Efect of adding Lactobacil us plantarum or a formic acid containing-product to fermented liquid feed on gastrointestinal ecology and growth performance of piglets[J].{H}LIVESTOCK SCIENCE,2007,(02):251-262.