【参考文献】 ［1］Ashmead H.D.;B.Beck,H.Hopson.1997,A New Approach To Reduction of Piglet Mortality［J］. Mordern Veterinary Practice, 1999,(16):509515. ［2］Wheby M.S.,Grace M.D.Intestinal absorption of hemoglobin iron［J］.Gastroenrology, 1970,58(5):647654.
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