Animal Husbandry and Feed Science ›› 2009, Vol. 30 ›› Issue (10): 94-94.doi: 10.12160/j.issn.1672-5190.2009.10.046
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LI Hong-mei, NIE Jin-fen ( 1. College of Resources and Environment, Yuxi Normal University, Yuxi 653100, China; 2.Hongta Distriet Environmental Monitoring Station, Yuxi 653100, China)