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  • Anonymous (1998) Commission directive 98/64/EC of 3 September 1998 establishing community methods of analysis for the determination of amino-acids, crude oils and fats, and olaquindox in feedingstuffs and amending directive 71/393/EEC. Official Journal of the European Communities, L257, 1427.
  • Anonymous (2009) Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down methods of sampling and analysis for the official control of feed. Official Journal of the European Communities, L54, 1130.
  • Boggess S.F. and Stewart C.R. (1976) Effect of water stress on proline synthesis from radioactive precursors. Plant Physiology, 58, 398401.
  • Bundesarbeitskreis Futterkonservierung (ed.) (2006) Praxishandbuch Futterkonservierung. Silagebereitung, Siliermittel, Dosiergeräte, Silofolien. [Handbook of feed preservation in practice. Silage making, silage additives, dosage apparatusses, silage plastic films], 7th edn. Frankfurt/Main, Germany: DLG-Verlag.
  • Castillo A.R., Kebreab E., Beever D.E., Barbi J.H., Sutton J.D., Kirby H.C. and France J. (2001) The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets. Journal of Animal Science, 79, 247253.
  • Chamberlain D.G., Thomas P.C. and Quig J. (1986) Utilization of silage nitrogen in sheep and cows: amino acid composition of duodenal digesta and rumen microbes. Grass and Forage Science, 41, 3138.
  • Choi C.W., Ahvenjärvi S., Vanhatalo A., Toivonen V. and Huhtanen P. (2002) Quantitation of the flow of soluble non-ammonia nitrogen entering the omasal canal of dairy cows fed grass silage based diets. Animal Feed Science and Technology, 96, 203220.
  • Clark J.H., Klusmeyer T.H. and Cameron M.R. (1992) Symposium: nitrogen metabolism and amino acid nutrition in dairy cattle. Journal of Dairy Science, 75, 23042323.
  • Dawson L.E.R., Ferris C.P., Steen R.W.J., Gordon F.J. and Kilpatrick D.J. (1999) The effect of wilting grass before ensiling on silage intake. Grass and Forage Science, 54, 237247.
  • Degussa Feed Additives (1996) The amino acid composition of feedstuffs. Hanau, Germany: Degussa.
  • Edmunds B., Südekum K.-H., Spiekers H., Schuster M. and Schwarz F.J. (2012a) Estimating utilizable crude protein from forages using a modified gas test. Animal Feed Science and Technology, 175, 106113.
  • Edmunds B., Südekum K.-H., Spiekers H. and Schwarz F.J. (2012b) Estimating ruminal crude protein degradation of forages using in situ and in vitro techniques. Animal Feed Science and Technology, 175, 95105.
  • Erasmus L.J., Botha P.M., Cruywagen C.W. and Meissner H.H. (1994) Amino acid profile and intestinal digestibility in dairy cows of rumen-undegraded protein from various feedstuffs. Journal of Dairy Science, 77, 541551.
  • Ferris C.P., Gordon F.J., Patterson D.C., Kilpatrick D.J., Mayne C.S. and McCoy M.A. (2001) The response of dairy cows of high genetic merit to increasing proportion of concentrate in the diet with a high and medium feed value silage. Journal of Agricultural Science, Cambridge, 136, 319329.
  • GfE (2001) Empfehlungen zur Energie- und Nährstoffversorgung der Milchkühe und Aufzuchrinder [Recommendations for the energy and nutrient supply of dairy cows and heifer calves]. Frankfurt/Main, Germany: DLG-Verlag.
  • GfE (2008) New equations for predicting metabolisable energy of grass and maize products for ruminants. Proceedings of the Society for Nutrition Physiology, 17, 191197.
  • Givens D.I. and Rulquin H. (2004) Utilization by ruminants of nitrogen compounds in silage-based diets. Animal Feed Science and Technology, 114, 118.
  • González J., Centeno C., Lamrani F. and Rodríguez C.A. (2001) In situ rumen determination of amino acids from different feeds corrected for microbial contamination. Animal Research, 50, 253264.
  • González J., Centeno C., Morujo N., Faría-Mármol J. and Martínez A. (2009) In situ ruminal amino acid degradability of green and ensiled Italian rye-grass according to particle transit model and microbial contamination correction. Livestock Science, 123, 209214.
  • Gordon F.J., Patterson D.C., Porter M.G. and Unsworth E.F. (2000) The effect of degree of grass wilting prior to ensiling on performance and energy utilization by lactating dairy cattle. Livestock Production Science, 64, 291294.
  • Hildebrand B., Boguhn J. and Rodehutscord M. (2011) Effect of maize silage to grass silage ratio and feed particle size on protein synthesis and amino acid profile in different microbial fractions in a semi-continuous rumen simulation. Animal, 5, 537546.
  • Hristov A.N., Ahvenjärvi S., Mcallister T.A. and Huhtanen P. (2003) Composition and digestive tract retention time of ruminal particles with functional specific gravity of greater or less than 1.02. Journal of Animal Science, 81, 26392648.
  • Huhtanen P. and Hristov A.N. (2009) A meta-analysis of the effects of dietary protein concentration and degradability on milk protein yield and milk N efficiency in dairy cows. Journal of Dairy Science, 92, 32223232.
  • Huhtanen P., Rinne M. and Nousiainen J. (2007) Evaluation of the factors affecting silage intake of dairy cows: a revision of the relative silage dry-matter intake index. Animal, 1, 758770.
  • Huhtanen P., Rinne M. and Nousiainen J. (2008) Effects of silage soluble nitrogen components on metabolizable protein concentration: a meta-analysis of dairy cow production experiments. Journal of Dairy Science, 91, 11501158.
  • Hvelplund T. and Weisbjerg M. (2000) In situ techniques for the estimation of protein degradability. In: Givens D. and Owen E. (eds) Forage evaluation in ruminant nutrition, pp. 233258. Wallingford, UK: CAB International.
  • Kebreab E., France J., Beever D.E. and Castillo A.R. (2001) Nitrogen pollution by dairy cows and its mitigation by dietary manipulation. Nutrient Cycling in Agroecosystems, 60, 275285.
  • Kemble A.R. and Macpherson H.T. (1954) Liberation of amino acids in perennial rye grass during wilting. Biochemical Journal, 58, 4649.
  • Kirchhof S., Eisner I., Gierus M. and Südekum K.-H. (2010) Variation in the contents of crude protein fractions of different forage legumes during the spring growth. Grass and Forage Science, 65, 376382.
  • Kokkonen T., Touri M., Leivonen V. and Syrjala-Qvist L. (2000) Effect of silage dry matter content and rapeseed meal supplementation on dairy cows. 1. Milk production and feed utilization. Animal and Feed Science and Technology, 84, 213228.
  • Krawielitzki K., Schmidt T., Voigt J., Kowalczyk J. and Gabel M. (2006) Dynamics of microbial contamination of protein during ruminal in situ incubation of feedstuffs. Journal of Animal and Feed Sciences, 15, 313328.
  • Lebzien P. and Gädeken D.M. (1996) Untersuchungen zum Einfluss des Trockensubstanzgehaltes von Grassilage auf die Abbaubarkeit des Rohproteins im Pansen. [Investigations on the impact of the dry matter concentration of grass silage on ruminal crude protein degradation]. Landbauforschung Völkenrode, 46, 169173.
  • Licitra G., Hernandez T.M. and Van Soest P.J. (1996) Standardization of procedures for nitrogen fractionation of ruminant feeds. Animal Feed Science and Technology, 57, 347358.
  • Madsen J. and Hvelplund T. (1994) Prediction of in situ protein degradability in the rumen. Results of a European ringtest. Livestock Production Science, 39, 201212.
  • Marsh R. (1979) The effects of wilting on fermentation in the silo and on the nutritive value of silage. Grass and Forage Science, 34, 110.
  • Mass R.A., Lardy G.P., Grant R.J. and Klopfenstein T.J. (1999) In situ neutral detergent insoluble nitrogen as a method for measuring forage protein degradability. Journal of Animal Science, 77, 15651571.
  • McDonald I. (1981) A revised model for the estimation of protein degradability in the rumen. Journal of Agricultural Science, Cambridge, 96, 251252.
  • McDonald P., Henderson A.R. and Heron S.J.E. (ed.) (1991) The biochemistry of silage, 2nd edn. Marlow, UK: Chalcombe Publications.
  • Menke K.H. and Steingass H. (1988) Estimation of the energetic feed value from chemical analysis and in vitro gas production using rumen fluid. Animal Research and Development, 28, 755.
  • Merchen N.R. and Satter L.D. (1983) Changes in nitrogenous compounds and sites of digestion of alfalfa harvested at different moisture contents. Journal of Dairy Science, 66, 789801.
  • Misciattelli L., Madsen J., Møller J., Thøgersen R. and Kjeldsen A.M. (2002) Fodermidlernes indhold af aminosyrer og aminosyrernes andel af aat [Feed materials containing amino acids and the amino acid share of AAT]. Rapport nr. 98. Skejby, Denmark: Landbrugets Radgivningscenter.
  • Muck R.E. (1988) Factors influencing silage quality and their implications for management. Journal of Dairy Science, 71, 29923002.
  • Narasimhalu P., Teller E., Vanbelle M., Foulon M. and Dasnoy F. (1989) Apparent digestibility of nitrogen in rumen and whole tract of Friesian cattle fed direct-cut and wilted grass silage. Journal of Dairy Science, 72, 20552061.
  • Nguyen H.V., Kawai M., Takahashi J. and Matsuoka S. (2005) Changes in nitrogen fractions and ruminal nitrogen degradability of orchardgrass ensiled at various moisture contents, and the subsequent effects on nitrogen utilization by sheep. Asian-Australasian Journal of Animal Sciences, 18, 12671272.
  • Patterson D.C., Yan T., Gordon F.J. and Kilpatrick D.J. (1998) Effects of bacterial inoculation of unwilted and wilted grass silages. 2. Intake, performance and eating behaviour by dairy cattle. Journal of Agricultural Science, Cambridge, 131, 113119.
  • Purwin C., Pysera B., Tokarczyk M., Sederevičius A., Savickis S. and Traidaraite A. (2009) Production results of dairy cows fed grass and alfalfa silage with a different degree of wilting. Veterinarija ir Zootechnika, 46, 6066.
  • Romney D.L., Blunn V., Sanderson R. and Leaver J.D. (2000) Feeding behaviour, food intake and milk production responses of lactating dairy cows to diets based on grass silage of high or low dry-matter content, supplemented with quickly and slowly fermentable energy sources. Animal Science, 71, 349357.
  • SAS (2002) User's guide: Statistics. Cary, NC, USA: SAS Institute, Inc.
  • Sniffen C.J., O'Connor J.D., Van Soest P.J., Fox D.G. and Russell J.B. (1992) A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability. Journal of Animal Science, 70, 35623577.
  • Spiekers H., Ostertag J., Meyer K., Bauer J. and Richter W.I.F. (2009) Managing and controlling silos to avoid losses by reheating of grass silage. XVth International Silage Conference, Madison, WI. p. 317 (Abstr.).
  • Steingass H., Nibbe D., Südekum K.-H., Lebzien P. and Spiekers H. (2001) Schätzung des nXP-Gehaltes mit Hilfe des modifizierten Hohenheimer Futterwerttests und dessen Anwendung zur Bewertung von Raps- und Sojaextraktionsschroten. [Estimating the uCP concentration by means of the modified Hohenheim gas test and its application in the evaluation of rapeseed and soybean meals]. 113th VDLUFA-Kongreß, Berlin, Kurzfassungen der Vorträge, p. 114 (Abstr.).
  • Storm E. and Ørskov E.R. (1983) The nutritive value of rumen micro-organisms in ruminants. British Journal of Nutrition, 50, 463470.
  • Teller E., Vanbelle M., Foulon M., Collignon G. and Matatu B. (1992) Nitrogen metabolism in rumen and whole digestive tract of lactating dairy cows fed grass silage. Journal of Dairy Science, 75, 12961304.
  • Thaysen J. (2004) Die Produktion von qualitativ hochwertigen Grassilagen [The production of high-quality grass silages]. Übersichten zur Tierernährung, 32, 57102.
  • Universität Hohenheim – Dokumentationsstelle (ed.) (1997) DLG-Futterwerttabellen für Wiederkäuer [DLG feed tables for ruminants], 7th edn. Frankfurt/Main, Germany: DLG-Verlag.
  • Van Straalen W.M., Odinga J.J. and Mostert W. (1997) Digestion of feed amino acids in the rumen and small intestines of dairy cows measured with nylon-bag techniques. British Journal of Nutrition, 77, 8397.
  • Van Vuuren A.M., Tamminga S. and Ketelaar R.S. (1990) Ruminal availability of nitrogen and carbohydrates from fresh and preserved herbage in dairy cows. Netherlands Journal of Agricultural Science, 38, 499512.
  • VDLUFA (2007) Verband Deutscher landwirtschaftlicher Untersuchungs- und Forschungsanstalten – Handbuch der landwirtschaftlichen Versuchs- und Untersuchungsmethodik (VDLUFA-Methodenbuch) Bd. III. Die chemische Untersuchung von Futtermitteln. [Association of German Agricultural and Analytic Research Institutes – Handbook of Agricultural Research and Analytic Methods (VDLUFA Book of Methods) Vol. III. The chemical analysis of feedstuffs]. Darmstadt, Germany: VDLUFA-Verlag
  • Verbič J., Ørskov E.R., Žgajnar J., Chen X.B. and Žnidaršič-Pongrac V. (1999) The effect of method of forage preservation on the protein degradability and microbial protein synthesis in the rumen. Animal Feed Science and Technology, 82, 195212.
  • Volden H., Mydland L.T. and Olaisen V. (2002) Apparent ruminal degradation and rumen escape of soluble nitrogen fractions in grass and grass silage administered intraruminally to lactating dairy cows. Journal of Animal Science, 80, 27042716.
  • Von Keyserlingk M.A.G., Shelford J.A., Puchala R., Swift M.L. and Fisher F.J. (1998) In situ disappearance of amino acids from grass silages in the rumen and intestines of cattle. Journal of Dairy Science, 81, 140149.
  • Weissbach F. (1992) Bestimmung der Pufferkapazität. [Determination of buffering capacity]. Laboratory Manual, Institut für Grünland- und Futterpflanzenforschung. Braunschweig, Germany: Bundesforschungsanstalt für Landwirtschaft.
  • Weissbach F. and Kuhla S. (1995) Stoffverluste bei der Bestimmung des Trockenmassegehaltes von Silagen und Grünfutter: entstehende Fehler und Möglichkeiten der Korrektur. [Substance losses during dry matter determination of silage and fresh herbage: originating errors and possibilities of corrections]. Übersichten zur Tierernährung, 23, 189214.
  • Wilkins R.J. (1984) Summary and conclusions. In: Zimmer E. and Wilkins R.J. (eds) Efficiency of silage systems: a comparison between unwilted and wilted silages, Landbauforschung Völkenrode Sonderheft, 69, 7172.
  • Wilkinson J.M., Hill J. and Leaver J.D. (1999) Effect of swath treatment on water loss during field-wilting and on feeding value of perennial ryegrass silage. Grass and Forage Science, 54, 227236.
  • Wright D.A., Gordon F.J., Steen R.W.J. and Patterson D.C. (2000) Factors influencing the response in intake of silage and animal performance after wilting of grass before ensiling: a review. Grass and Forage Science, 55, 113.
  • Wulf M. and Südekum K.-H. (2005) Effects of chemically treated soybeans and expeller rapeseed meal on in vivo and in situ crude fat and crude protein disappearance from the rumen. Animal Feed Science and Technology, 118, 215227.