4Sutton.A.L.,A.G.Mathew,A.B.Scheidt,J.A.Patterson,andD.T.Kelly.1991.Effectof Carbohydrate source and organicacids on intestinal microflora and performance of the weanling pig.Pp 422~427 in proceedings of the 5th Congresson Digestive Physiology in pigs.EEAP Pub.NO.54.Pudoc,Wageningen,Netherlands
5Farnworth,E.R.,H.W.Modler,and D.A.Mackie.1995.Adding Jerusalem artichoke (Helianthus tuberosus L) to weanling pig diets and the effect on manure composition and characteristics.Anim.Feed Sci.Tech.55:153~160
6Barrington.S.,and K.El Moneddeb.1995.Zeolite to control swine manure odours and nitrogen volatilization.Pp.65~68 in Proc.International Livestock Odor Conference.Ames.Iowa State University
7NRC,Nutrient requiremcnts of Swine(10th revised Edition)USA:National Acamy Press,1998
8NRC,Nutrient requirements of Poultry(9th revised Edition) .USA:National Acadmy Press,1994
9D.S.Probiotics in pig diets.1986.Pp.193~205 in Recent Advances in Animal Nutrition,W.Haresign and D.J.A.Cole,eds.London:Butterworths
10Kirchgessner,M.,and F.X.Roth.1982.Fumaric acid as a feed additive in pig nutrition.Pig News and information 3:259~263