Ahvenjärvi, S, Vanhatalo, A, Huhtanen, P and Varvikko, T 2000. Determination of reticulo-rumen and whole stomach digestion in lactating cows by omasal canal and duodenal sampling. British Journal of Nutrition 83, 67-77.
Anderson, DB, McCracken, VJ, Aminov, RI, Simpson, JM, Mackie, RI, Verstegen, MWA and Gaskins, HR 1999. Gut microbiology and growth-promoting antibiotics in swine. Pig News and Information 20, 115N-122N.
Association of Official Analytical Chemists 1990. Official methods of analysis. AOAC, Arlington, VA.
Bartelt, J, Drochner, W, Götz, K-P, Sxakacz, J, Ceresnáková, Z and Sommer, A 1999. Determination of endogenous nitrogen associated with bacteria in ileal digesta of pigs receiving cereal-based diets with or without fish meal and various fibre supplements by using a simple 15N-dilution technique. Journal of Animal and Feed Sciences 8, 425-440.
Beauchemin, KA and Buchanan-Smith, JG 1989. Evaluation of markers, sampling sites and models for estimating rates of passage of silage or hay in dairy cows. Animal Feed Science and Technology 27, 59-75.
Canibe, N, Højberg, O, Højsgaard, S and Jensen, BB 2005. Feed physical form and formic acid addition to the feed affect the gastrointestinal ecology and growth performance of growing pigs. Journal of Animal Science 83, 1287-1302.
Czerkawski, JW and Faulds, C 1974. Methods for determining 2-6-diaminopimelic acid and 2-aminoethylphosphonic acid in gut contents. Journal of the Science of Food and Agriculture 25, 45-55.
Davis, A and Hall, WB 1969. Cyclic change-over designs. Biometrika 56, 283-293.
Dierick, NA, Vervaeke, IJ, Decuypere, JA and Henderickx, HK 1990. Bacterial protein synthesis in relation to organic matter digestion in the hind gut of growing pigs; contribution of hindgut fermentation to total energy supply and growth performance. Journal of Animal Physiology and Animal Nutrition 63, 220-235.
Dufva, GS, Bartley, EE, Arambel, MJ, Nagaraja, TG, Dennis, SM, Galitzer, SJ and Dayton, AD 1982. Diaminopimelic acid content of feeds and rumen bacteria and its usefulness as a rumen bacterial marker. Journal of Dairy Science 65, 1754-1759.
European Commission 1998. Commission Directive 98/64/EC. Community methods of analysis for the determination of amino acids, crude oils and fats, and olaquindox in feeding stuffs and amending Directive 71/393/EEC. Official Journal of European Commission L257, 14-28.
Faichney, GJ 1993. Digesta flow. In Quantitative aspects of ruminantdigestion and metabolism (ed. Forbes, JM and France, J), pp. 6-214. CAB International, Wallingford.
Haacker, K, Block, HJ and Weissbach, F 1983. Zur kolorimetrischen Milchsäurebestimmung in Silagen mit p-Hydroxydiphenyl. Archiv Für Tierernährung 33, 505-512.
Huang, SX, Sauer, WC and Marty, B 2001. Ileal digestibilities of neutral detergent fiber, crude protein, and amino acids associated with neutral detergent fiber in wheat shorts for growing pigs. Journal of Animal Science 79, 2388-2396.
Huhtanen, P, Blauwiekel, R and Saastamoinen, I 1998. Effects of intraruminal infusion of propionate and butyrate with two different protein supplements on milk production and blood metabolites in dairy cows receiving grass silage-based diet. Journal of the Science of Food and Agriculture 77, 213-222.
Illg, DJ and Stern, MD 1994. In vitro and in vitro comparisons of diaminopimelic acid and purines for estimating protein synthesis in the rumen. Animal Feed Science and Technology 48, 49-55.
Jørgensen, H, Jakobsen, K and Eggum, BO 1992. Excretion of biliary fat and fatty acids in growing pigs. Journal of Animal and Feed Sciences 1, 139-149.
Jensen, BB and Jørgensen, H 1994. Effect of dietary fiber on microbial activity and microbial gas production in various regions of the gastrointestinal tract of pigs. Applied and Environmental Microbiology 60, 1897-1904.
Kemme, PA, Jongbloed, AW, Mroz, Z, Kogut, J and Beynen, AC 1999. Digestibility of nutrients in growing-finishing pigs is affected by Aspergillus niger phytase, phytate and lactic acid levels. 1. Apparent ileal digestibility of amino acids. Livestock Production Science 58, 107-117.
Karr-Lilienthal, LK, Grieshop, CM, Spears, JK, Patil, AR, Czarnecki-Maulden, GL, Merchen, NR and Fahey, GC Jr 2004. Estimation of the proportion of bacterial nitrogen in canine feces using diaminopimelic acid as an internal bacterial marker. Journal of Animal Science 82, 1707-1712.
Köhler, T, Mosenthin, R, Verstegen, MWA, Huisman, J, Den Hartog, LA and Ahrens, F 1992. Effect of ileo-rectal anastomosis and post-valve T-caecaum cannulation on growing pigs. 1. Growth performance, N-balance and intestinal adaptation. British Journal of Nutrition 68, 293-303.
Laplace, J-P, Darcy-Vrillon, B, Duval-Iflah, Y and Raibaud, P 1985. Proteins of the digesta of the pig: amino acid composition of endogenous, bacterial and faecal fractions. Reproduction, Nutrition, Development 25, 1083-1099.
Lesniewska, V, Lærke, HN, Hedemann, MS and Jensen, BB 2001. Effect of intraduodenal infusion of lactic acid and formic acid on pancreatic juice secretion and antroduodenal myoelectrical acticity in piglets after weaning. In Digestive physiology of pigs (ed. Lindberg, JE and Ogle, B), pp. 215-217. CABI Publishing, Wallingford.
Li, S and Sauer, WC 1994. The effect of dietary fat content on amino acid digestibility in young pigs. Journal of Animal Science 72, 1737-1743.
McCullough, H 1967. The determination of ammonia in whole blood by direct colorimetric method. Clinica Chimica Acta 17, 297-304.
Mosenthin, R, Sauer, WC and Ahrens, F 1994. Dietary pectin: effect on ileal and faecal amino acid digestibility and exocrine pancreatic secretion in growing pigs. Journal of Nutrition 124, 1222-1229.
Mosenthin, R, Sauer, WC, Ahrens, F, De Lange, CFM and Bornholdt, U 1992. Effect of dietary supplements of propionic acid, siliceous earth or a combination of these on the energy, protein and amino acid digestibilities and concentrations of microbial metabolites in the digestive tract of growing pigs. Animal Feed Science and Technology 37, 245-255.
Mroz, Z, Jongbloed, AW, Partanen, KH, Vreman, K, Kemme, PA and Kogut, J 2000. The effects of calcium benzoate in diets with or without organic acids on dietary buffering capacity, apparent digestibility, retention of nutrients, and manure characteristics in swine. Journal of Animal Science 78, 2622-2632.
Partanen, K and Jalava, T 2005. Effects of some organic acids and salts on microbial fermentation in the digestive tract of piglets estimated using an in vitro gas production technique. Agricultural and Food Science 14, 311-324.
Partanen, K, Jalava, T, Valaja, J, Perttilä, S, Siljander Rasi, H and Lindeberg, H 2001. Effect of dietary carbadox or formic acid and fibre level on ileal and faecal nutrient digestibility and microbial metabolite concentrations in ileal digesta of the pig. Animal Feed Science and Technology 93, 137-155.
Partanen, KH and Mroz, Z 1999. Organic acids for performance enhancement in pig diets. Nutrition Research Reviews 12, 117-145.
Partanen, K, Valaja, J, Siljander-Rasi, H, Jalava, T, Toivonen, V and Järvimäki, S 1998. Effect of fibre content on ileal digestion of amino acids in wet barley distiller's feed. Effect of fibre content on ileal digestion of amino acids in wet barley distiller's feed. In Book of Abstracts of the 49th Annual Meeting of the European Association for Animal Production (ed. Van Arendonk, JAM), p. 269. Wageningen Pers, Wageningen.
Pond, WG, Pond, KR, Ellis, WC and Matis, JH 1986. Markers for estimating digesta flow in pigs and the effects of dietary fiber. Journal of Animal Science 63, 1140-1149.
Ravindran, V and Kornegay, ET 1993. Acidification of weaner pig diets: a review. Journal of the Science of Food and Agriculture 62, 313-322.
Robertson, JB and Van Soest, PJ 1981. The detergent system of analysis and its application to human foods. In The analysis of dietary fibre in foods (ed. James, WPT and Theander, O), pp. 123-158. Marcel Dekker, New York.
Roth, FX, Eckel, B, Kirchgessner, M and Eidelsburger, U 1992. Influence of formic acid on pH-value, dry matter content, concentrations of volatile fatty acids and lactic acid in the gastrointestinal tract. 3. Investigations about the nutritive efficacy of organic acids in the rearing of piglets. Journal of Animal Physiology and Animal Nutrition 67, 148-156.
Sauer, WC, Mosenthin, R, Ahrens, F and Den Hartog, LA 1991. The effect of source of fiber on ileal and fecal amino acid digestibility and bacterial nitrogen excretion in growing pigs. Journal of Animal Science 69, 4070-4077.
Schulze, H, Van Leeuwen, P, Verstegen, MWA, Huisman, J, Souffrant, WB and Ahrens, F 1994. Effect of level of dietary neutral detergent fiber on ileal apparent digestibility and ileal nitrogen losses in pigs. Journal of Animal Science 72, 2362-2368.
Stein, HH, Trottier, NL, Bellaver, C and Easter, RA 1999. The effect of feeding level and physiological status on total fluw and amino acid composition of endogenous protein at the distal ileaum in swine. Journal of Animal Science 77, 1180-1187.
Tuori, M, Kaustell, K, Valaja, J, Aimonen, E, Saarisalo, E and Huhtanen, P (1996). [.
Udén, P, Colucci, PE and Van Soest, PJ 1980. Investigation of chromium, cerium and cobalt as digesta flow markers in rate of passage studies. Journal of the Science of Food and Agriculture 31, 625-632.
Van Kleef, DJ, Deuring, K and Van Leeuwen, P 1994. A new method of faeces collection in the pig. Laboratory Animals 28, 78-79.
Van Leeuwen, P, Van Kleef, DJ, Van Kempen, GJM, Huisman, J and Verstegen, MWA 1991. The post-valve T-caecum cannulation technique in pigs applicated to determine the digestibility of amino acid in maize, groundnut and sunflower meal. Journal of Animal Physiology and Animal Nutrition 65, 183-193.
Van Soest, PJ, Robertson, JB and Lewis, BA 1991. Methods of dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. Journal of Dairy Science 74, 3583-3597.
Wenk, C 2001. The role of dietary fibre in the digestive physiology of the pig. Animal Feed Science and Technology 90, 21-33.
Williams, CH, David, D and Iismaa, O 1962. The determination of chromic oxide in faeces samples by atomic absorption spectrometry. Journal of Agricultural Science, Cambridge 59, 381-385.
Wünsche, J, Völker, T, Souffrant, WB and Borgman, E 1991. Assessment of the bacteria bacterial N proportions in faeces and differently obtained ileal digesta of pigs. Archives of Animal Nutrition 41, 703-716.
Zinn, RA and Owens, FN 1986. A rapid procedure for purine measurement and its use for estimating net ruminal protein synthesis. Canadian Journal of Animal Science 66, 157-166.