Andersson M. (1995) Ammonia volatilization from cow and pig manure. Results of laboratory studies with a new climate chamber technique. Report. Swedish University of Agricultural Sciences 98.
Bernal M.P., Lopez-Real J.M. (1993) Natural zeolites and sepiolite as ammonium and ammonia adsorbent materials. Bioresource Technology 43:27-33.
Bernal M.P., Lopez-Real J.M., Scott K.M. (1993) Application of natural zeolites for the reduction of ammonia emissions during the composting of organic wastes in a laboratory composting simulator. Bioresource Technology 43:35-39.
Bishop Y. The Veterinary Formulary. 4th edition, London: Pharmaceutical Press; 1998.
Bonazzi G., Navaratto P., Valli L. (1994) Control of ammonia emissions in pig housing on straw. Rivista di suinicoltura 35:67-70.
Bristow A.W., Whitehead D.C., Cockburn J.E. (1992) Nitrogenous constituents in the urine of cattle, sheep and goats. Journal of the Science of Food and Agriculture 59:387-394.
Ceriotti G. (1974) Other non-protein nitrogenous compounds., Clinical Biochemistry: Principles and Methods (Eds. H. Ch. Curtius and M. Roth). Berlin: de Gruyter; 1122-1126.
Hartung J., Phillips V.R. (1994) Control of gaseous emissions from livestock buildings and manure stores. Journal of Agricultural Engineering Research 57:173-189.
Henriksen K., Berthelsen L., Matzen R. (1998) Separation of liquid pig manure by flocculation and ion exchange. Part 1: Laboratory experiments. Journal of Agricultural Engineering Research 69:115-125.
Kitai K., Arakawa A. (1979) Effect of antibiotics and caprylohydroxamic acid on ammonia gas from chicken excreta. British Poultry Science 20:55-60.
Martinez J., Jolivet J., Guiziou F., Langeoire G. (1997) Ammonia emissions from pig slurries: Evaluation of acidification and the use of additives in reducing losses., Proceedings: Ammonia and Odour Emissions from Animal Production Facilities. Vinkeloord, The Netherlands; .
Moore P.A., Daniel T.C., Edwards D.R., Miller D.M. (1996) Evaluation of chemical amendments to reduce ammonia volatilization from poultry litter. Poultry Science 75:315-320.
Morisaki N., Phae C.G., Nakasaki K., Shoda M., Kubota H. (1989) Nitrogen transformation during thermophilic composting. Journal of Fermentation and Bioengineering 67:57-61.
Nicks B., Desiron A., Canart B. (1998) Comparison of two litter materials, sawdust and a straw-sawdust mixture, for fattening pigs on deep litter. Annales de Zootechnie 47:107-116.
Nimenya H., Delaunois A., La Duong D., Bloden S., Defour J., Nicks B., Ansay M. (1999) Short-term toxicity of various pharmacological agents on the in vitro nitrification process in a simple aquatic system. Alternatives To Laboratory Animals, ATLA 27:121-135.
Oesthoek J., Kroodsma W., Hoeksma P. (1990) Methods of reducing ammonia emissions from animal housing., Ammoniak in der Umwelt (Eds. J. Hartung, M. Paduch, S. Schirz, H. Dohler and H. van den Weghe). Munster, Germany: Landwirtschaftsverlag GmbH; 29:1-23.
Piva G., Morlacchini M. (1990) Decreasing the polluting effect of pig excreta: Importance of nutrition. Rivista di Suinicoltura 31:37-47.
Prescott J.F., Baggot J.D. Antimicrobial Therapy in Veterinary Medicine. 2nd Edition, Ames, Iowa: Iowa State University Press; 1993.
Reece F.N., Bates B.J., Lott B.D. (1979) Ammonia control in broiler houses. Poultry Science 58:754-755.
Richards I.R., Wolton K.M. (1976) A note on the properties of urine excreted by grazing cattle. Journal of the Science of Food and Agriculture 27:426-428.
Rom H.B., Dahl P.J. (1997) Quantification of the ammonia balance in fattening pig units with totally slatted floors., Proceedings of the Fifth International Symposium: Livestock Environment V. ASAE, Bloomington, Minnesota, USA; .
Seltzer W., Moum S.G., Goldhaft T.M. (1969) A method for the treatment of animal wastes to control ammonia and other odors. Poultry Science 48:1912-1918.
Sherlock R.R., Goh K.M. (1984) Dynamics of ammonia volatilization from simulated urine patches and aqueous urea applied to pasture. I. Field experiments. Fertilizer Research 5:181-195.
Skjelhaugen O.J., Fjelldal E., Sundstol F., Owen E. (1993) Methods for collecting and storing of urine under farming conditions. NORAGRIC. Occasional papers. Series C, Development and Environment 12:18-23.
Spiekers H., Pfeffer E. (1990) Emissionsminderung durch angepasste Futterung. (Reducing emissions by appropriate feeding)., Ammoniak in der Umwelt (Eds. J. Hartung, M. Paduch, S. Schirz, H. Dohler, and H. van den Weghe), Munster, Germany: Landwirtschaftsverlag GmbH; 24:1-16.
Stevens R.J., Laughlin R.J., Frost J.P. (1989) Effect of acidification with sulphuric acid on the volatilization of ammonia from cow and pig slurries. Journal of Agricultural Science, Cambridge 113:389-395.
Whitehead D.C., Raistrick N. (1993) Nitrogen in the excreta of dairy cattle: Changes during short-term storage. Journal of Agricultural Science, Cambridge 121:73-81.
Yeomans J.C., Bremner J.M. (1986) Effects of urease inhibitors on denitrification in soil. Communications in Soil Science and Plant Analysis 17:63-73.
Zhengping W., Van Cleemput O., Baert L. (1990) Effect of urease inhibitors on nitrification in soils. Soil Use and Management 6:41-43.
Zhengping W., Van Cleemput O., Baert L. (1996) Movement of urea and its hydrolysis products as influenced by moisture content and urease inhibitors. Biology and Fertility of Soils 22:101-108.
Zhou L.K., Zheo X.Y., Li R.H., Wu G.Y., Wang Z.P. (1992) Effect of urease inhibitor hydroquinone on urea-N transformation in soils. Chinese Journal of Applied Ecology 3:36-41.
