8Barth C L, Polkowski L B. Identifying odorous components of stored dairy manure[J]. Tratls of the ASAE, 1974,17 (4) ; 737 -741,747.
9Carroy P G,Dodd V R. The measurement of agricultural mal- odor[J]. Agric EngRev,1989,43:197-209.
10Farnworth E R, Modler H W, Mackie D A. Adding Jerusalem artichoke to weanling pig diets and the effect on manure compo sition and characteristics[J]. Anita Feed Sci Technol, 1995,55 153-160.
