Contents Page Review lecture Metabolism, growth, lactation

Proc. Soc. Nutr. Physiol. (2008) 17

Contents Page Review lecture Metabolic Programming in Farm Animals Cornelia C. Metges, Winfried Otten, Charlotte Rehfeldt – Research Institute for the Biology of Farm Animals (FBN), Research Units ‘Nutritional Physiology’, ‘Behavioural Physiology’, ‘Muscle Biology & Growth’, Dummerstorf

17-26

Metabolism, growth, lactation 1.

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3. 4.

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Feed intake, milk production and metabolic changes in high-yielding dairy cows fed a diet containing rumen-protected fat during the dry period Kathrin Duske, Anne-Kathrin Langhof, H. M. Hammon, H. M. Seyfert and Cornelia C. Metges – Dummerstorf TNF-α and fat metabolism in heifers with different body condition (BCS) at parturition M. Fürll, N. Jatzke , K. Bauer, I. Steinhöfel, J. Gottschalk, U. Sack and A. Einspanier – Leipzig Nutritional effects on growth, mammary development and milk yield potential of growing calves and heifers - a review J. D. Lohakare and K.-H. Südekum – Bonn Effects and post-effects on performance and metabolic parameters of early lactation dairy cows to dietary rumen-protected CLA and rumen protected fat T. Liermann, Angelika-Maria Pfeiffer and F. J. Schwarz – FreisingWeihenstephan/Limburgerhof Peroxisome proliferator-activated receptor α mediates the upregulation of novel organic cation transporters and enzymes involved in hepatic carnitine synthesis K. Eder, A. Koch, Bettina König, Gabriele I. Stangl – Halle (Saale) Effect of feed supplementation with different saponin fractions from Trigonella foenum-graecum on growth and expression of genes encoding GH and IGF-1 in carp, Cyprinus carpio W. K. B. Khalil, T. Stadtlander, G. Francis, K. Becker and U. Focken – Giza/Stuttgart-Hohenheim Investigations on energy and protein requirement in growing pet birds (budgerigars, lovebirds) Petra Wolf and J. Kamphues – Hannover

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3

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11. 12. 13. 14. 15. 16. 17.

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Cheese-making properties of the milk of cows fed iso-energetic diets based on feeds typical for arable land and grassland systems F. Leiber, Anita M. Reichmuth, Fenja Klevenhusen, M. Kreuzer and Carla R. Soliva – Zurich Low and high protein diets during pregnancy influence maternal body mass development and composition as well as offspring birth weight in young sows Iris S. Lang, Solvig Görs, P. Junghans, U. Hennig, B. Stabenow, W. Otten, Charlotte Rehfeldt and Cornelia C. Metges – Dummerstorf Metabolic programming of calves: effects of postnatal nutrient supply on the pancreatic insulin response Katrin Röttjer, U. Meyer, G. Flachowsky and M. Kaske – Hannover/ Braunschweig/Freising-Weihenstephan TNF-α concentrations before and after parturition in healthy and ill cows B. Fürll, G. Hädrich and M. Fürll – Leipzig Investigations on the antioxidative state of dairy goats in the periparturient period L. Locher, A. Rudovsky and M. Fürll – Leipzig Antioxidative status in healthy sows during the periparturient period in a high performance herd T. Sattler, J. Sellmann, S. Müller and M. Fürll – Leipzig/Jena Antioxidative status in sows during the periparturient period in a farm with a high incidence of MMA T. Sattler, S. Derkx, D. Gnielka, S. Müller and M. Fürll – Leipzig/Jena Development of antioxidative status in healthy calves and growing cattle T. Sattler, H. Haser and M. Fürll – Leipzig Effect of mouse strain and lactation day on milk composition of mice Solvig Görs, Marzena Kucia, P. Junghans and Cornelia C. Metges – Dummerstorf Milk production and metabolic changes in high-yielding dairy cows with different dry period length H. M. Hammon, B. Losand, F. Rehbock, Elke Blum, Anne-Kathrin Langhof and P. Sanftleben – Dummerstorf Glucose metabolism in high-yielding dairy cows fed rumen-protected fat H. M. Hammon, Anne-Kathrin Langhof, Kathrin Duske, F. Schneider, H. M. Seyfert and Cornelia C. Metges – Dummerstorf Protein synthesis in jejunal mucosa of goat kids fed milk or soy protein-based diets Ulrike Schönhusen, Anne Flöter, S. Kuhla, P. Junghans, Cornelia C. Metges, K.-J. Petzke, Korinna Huber, R. Žitňan, H. M. Hammon – Dummerstorf/Potsdam-Rehbrücke/Hannover/Košice

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37 38 39 40 41 42 43

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20.

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Contribution of gluconeogenesis to total glucose production in young calves using deuterium oxide - comparison of the mass isotopomer and hexamethylentetramine approach P. Junghans, Solvig Görs, Iris Lang, Julia Steinhoff, H. M. Hammon and Cornelia C. Metges – Dummerstorf A proteomic approach to evaluate the pituitary hormone profile of feed restricted dairy cows B. Kuhla, D. Albrecht, S. Kuhla, P. E. Rudolph and Cornelia C. Metges – Dummerstorf/Greifswald Expression of adiponectin, adiponectin receptor 1, adiponectin receptor 2, and leptin in subcutaneous adipose tissue during the transition period in dairy cow Anneka Lemor, M. Mielenz, A. Hosseini and Helga Sauerwein – Bonn The decrease of back fat thickness post partum as a parameter of energy balance in Holstein Frisian compared to Simmental cows H. Pothmann-Reichl, F. J. Zimmer, Irene Sommerfeld-Stur and Christine Iben – Wien/Wetter Milk production efficiency of sheep and goats fed different forage qualities and concentrate levels L. Gruber, F. Ringdorfer and Elisabeth Pöckl – Irdning

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Minerals and traceelements 25. 26.

27.

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Iodine status of thyroid gland in growing-finishing pigs fed rapeseed meal or rapeseed cake in comparison to soybean meal A. Berk, H. Wagner and G. Flachowsky – Braunschweig/Kulmbach Long-term intermittent exogenous parathyroid hormone fargment (ePTH 1-37) application in healthy horses: Impact on calcium and bone metabolism Katharina Weisrock, Sarah Winkelsett, W. Martin-Rosset, W. G. Forssmann, Nahid Parvizi, M. Coenen and Ingrid Vervuert – Leipzig/Hannover/Saint-Genés Champanelle/Neustadt a. R. Effects of long-term intermittent application with equine parathyroid hormone fragment (ePTH 1-37) on endogenous parathyroid secretion in horses Ingrid Vervuert, Katharina Weisrock, W.G. Forssmann, Nahid Parvizi and M. Coenen – Leipzig/Hannover/Neustadt a. R. Endogenous losses of macro minerals via excreta in adult parrots (Amazona spp.) fed a semi-synthetic diet in order to determine their requirement at maintenance Claudia Westfahl, Petra Wolf and J. Kamphues – Hannover Investigations on the most qualified samples (serum, liver or cow hair) for analysing copper and zinc supply in dairy cows M. Spolders, Haidong Sun, M. Wähner, M. Grün, J. Rehage and G. Flachowsky – Braunschweig/Bernburg/Jena/Hannover

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31. 32. 33.

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Investigations to the influence of different sources and levels of selenium in the feed of dairy cows on the selenium content of the milk Katja Heerdegen, U. Meyer, G. Flachowsky and H. Schenkel – Braunschweig/Hohenheim Availability of a nutritional dose of ebselen in rats Claudia Parys, A.S. Müller and J. Pallauf – Giessen Blood parameters in selenium deficient guinea pigs, rabbits and rats Christine Jensen, Claudia Parys, Susanne Blind and J. Pallauf – Giessen Effects of varying dietary iodine supplementation as iodide or iodate on zootechnical performance, carcass quality and iodine concentrations in tissues of fattening pigs Viktoria Wagner, W. Windisch, S. Swoboda and T. Ettle – Wien Sulphur balance studies in dogs fed a diet supplemented with different sulphur sources (cysteine, calcium sulphate, sublimed sulphur) Maren Janczikowski, Petra Wolf and J. Kamphues – Hannover Effects of different concentrations and forms of dietary zinc oxide on the intestinal concentrations of zinc and on the adherence of Escherichia coli to enterocytes of piglets A. Specht, M. Schurz, P. Hellweg and J. Zentek – Berlin

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57 58 59

60 61

Fat and lipids 36.

37. 38.

39.

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Diet effects on the fatty acid profile of caecotrophes, lean and adipose tissue in rabbits H.-R. Wettstein, Janina Meier, F. Leiber, M. Kreuzer, J.-M. Hatt, Bettina Burger and M. Clauss – Zurich Effects of conjugated linoleic acid and sunflower seed on fatty acid composition of cow´s milk A. Hoffmann, H. Steingaß and W. Drochner – Stuttgart-Hohenheim Effects of feeding conjugated linoleic acids to dairy cows during the transition period and early lactation upon milk and milk component yields Katrin Metzger-Petersen, K.-H. Südekum, M. Pries, H. van de Sand – Bonn/Münster/Kleve Fatty acid distribution and CLA isomer distribution in serum and liver lipids of CLA supplemented dairy cows G. Jahreis, U. Meyer, M. Kaske, G. Flachowsky – Jena/Braunschweig/ Hannover/Freising-Weihenstephan Can long-chain omega-3 fatty acids, provided early in fattening, be recovered in pork at slaughter? Ratchaneewan Khiaosa-Ard, S. Jaturasitha and M. Kreuzer – Zurich/ Chiang Mai (Thailand) Effect of selen and docosahexaenoic acid on lipid metabolism of laying hens V. Börner, K. Schäfer and Annette Simon – Berlin

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63 64

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Influence of seleno-cystine, seleno-methione, and α-linolenic acid on the fatty acid profile in in vitro incubated ovine ruminal fluid Marian Czauderna, J. Kowalczyk, K. M. Niedźwiedzka and R. J. Wallace – Jabłonna/Aberdeen Influence of selenite, selenate and α-linolenic acid on the fatty acid profile in in vitro incubated ovine ruminal fluid Marian Czauderna, J. Kowalczyk, K. M. Niedźwiedzka and R. J. Wallace – Jabłonna/Aberdeen

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Additives 44.

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50. 51.

Immune modulating influence of Echinacea purpurea as an intermittent feed additive in layers and fattening pigs Barbara M. Böhmer, H. Salisch, Brigitte R. Paulicks and F. X. Roth – Freising-Weihenstephan/Poing Effects of alimentary tannin supplementations on nutrient digestibility and growth performance of weanling piglets Brigitte R. Paulicks, G. Biagi and F. X. Roth – Freising-Weihenstephan/ Bologna Effect of insoluble dietary fiber on performance, microbiological and morphological parameters and mRNA expression of inflammatory and cell cycle marker genes in the gut of weaning piglets used as animal model K. Schedle and W. Windisch – Vienna Influence of different application procedures of a probiotic E. faecium strain (direct oral dosing vs. supplementation in feed) on bacterial parameter in piglets Irina Gordeeva, O. Simon and W. Vahjen – Berlin Effects of including organic acids or potassium diformate and grinding intensity (coarse/fine) of ingredients in the diet of weaned piglets experimentally infected with E. coli or S. Derby Venja Taube, Marion Neu, Yasmin Hassan, Jutta Verspohl and J. Kamphues – Hannover Different dietary concentrations of thyme (thymi herba) affect thymol concentrations in intestinal and extraintestinal compartments in broilers A. Haselmeyer, R. Chizzola, C. Leeb, H. Ur-Rehman and J. Zentek – Wien/Berlin Effect of mannan oligosaccharides on broiler chickens fed diets with low versus high content of dietary fibers Birgit Prause, Ruth Messikommer, P. Spring and C. Wenk – Zurich Effects of feeding tannins on intestinal mucosa and microflora of weanling pigs G. Biagi, B. R. Paulicks, I. Cipollini and F.X. Roth – Bologna/FreisingWeihenstephan

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57. 58.

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Influence of woad (Isatis tinctoria) and ginkgo (Ginkgo biloba) on growth of broiler chickens Ingrid Halle, R. Thomann, H. Friebel, M. Grün, M. Henning, P. Köhler and G. Flachowsky – Braunschweig/Bergholz-Rehbrücke/Jena/Mariensee Effect of rare earth elements (REE) supplementation on the REE content of tissues and organs in fattening bulls Annett Schwabe, U. Meyer, M. Grün and G. Flachowsky – Braunschweig/Jena Effects of several doses of zeolite A on feed intake, on energy metabolism around calving as well as on milk yield and milk composition in the subsequent lactation Hilde Grabherr, M. Spolders, G. Flachowsky and M. Fürll – Braunschweig/Leipzig Urine pH value and excretion of hippuric acid via urine in pigs fed diets supplemented with benzoic acid H. Kluge, J. Broz and K. Eder – Halle (Saale)/Basel Effects of essential oils, herbs and spices on health, feed conversion and growth of broilers W. Hackl, Annette Zeyner and Monika Krüger – Rostock/ Leipzig Effect of benzoic acid on urinary mineral excretion in growing pigs H. D. Hess and A. Gutzwiller – Posieux Feedstuff-specific effects of different concentrations of NSPhydrolysing enzymes on rumen degradability R. Eisenreich, W. Steinberg and F. J. Schwarz – FreisingWeihenstephan/Village-Neuf Oral bioavailability of quercetin from different quercetin glycosides in dogs Marianne Reinboth, G. Abraham, F. R. Ungemach, S. Wolffram and R. Cermak – Leipzig/Kiel Effect of VITACEL® Raw fibre concentrate on zootechnical parameters, health status and the development of the gastrointestinal tract of calves Julia Trautwein und G. Dusel – Bingen am Rhein Effect of lanthanum carbonate octahydrate (Lantharenol®) on apparent phosphorus absorption from a conventional feline maintenance diet and a renal diet for cats B. Schmidt, Ute Spiecker-Hauser and J. Gropp – Monheim/Leipzig Effects of the probiotic Enterococcus faecium via defined application on epithelial transport properties in piglet small intestine Ulrike Lodemann, Anja Dillenseger and Holger Martens – Berlin

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Digestion 63.

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Effect of forage source and feed particle size on fermentation rate and efficiency of microbial protein synthesis in a RUSITEC B. Hildebrand, J. Boguhn and M. Rodehutscord – Halle (Saale)

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65. 66.

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68. 69.

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Influence of repeatedly induced ruminal acidosis on ruminal fermentation and pH fluctuation in dairy cows Frigga Dohme, T. J. DeVries, Karen S. Schwartzkopf-Genswein and Karen A. Beauchemin – Posieux/Lethbridge The impact of different feeding orders of hay or hay chaff combined with a concentrate meal on feed intake pattern in horses Mandy Bochnia, Ingrid Vervuert and M. Coenen – Leipzig Influence of different extracted fiber sources (pectin, cellulose + hemicellulose) to a starchy feed on glycaemic and insulinaemic response in healthy horses Sara Klein, M. Coenen and Ingrid Vervuert – Leipzig The effects of feeding increasing quantities of starch from a compounded feed on glycaemic and insulinaemic responses in healthy horses Ingrid Vervuert, Katrin Voigt, Teresa Hollands, D. Cuddeford and M. Coenen – Leipzig/Hannover/Islip/Edinburgh Cecal microbial metabolism in horses in vitro as affected by erythromycin and feed restriction Manuela Kuhn and G. Breves – Hannover Ascaridia galli infestation of pullets and intestinal viscosity Consequences for nutrient retention and gut morphology S. Dänicke, Eva Moors, A. Beinecke and M. Gauly – Braunschweig/ Göttingen/Hannover Starch gelatinisation degree of extruded pigeon feed affects fecal flora, intestinal pH and morphology Enass Abd El Khalek, Isabelle Kalmar, Stephanie Van Weyenberg, G. Werquin and G. P. J. Janssens – Merelbeke/Deinze Is the requirement for ruminally degradable protein per unit of fermentable organic matter the same for all diets? Carla R. Soliva, Carmen Kleiner, S. L. Amelchanka and M. Kreuzer – Zurich Effects of forage source and feed particle size on Clostridium cluster XIV bacteria in a RUSITEC M. Witzig, J. Boguhn and M. Rodehutscord – Halle (Saale) Short-term effects of stocking rate and management system on yield performance and nutritive value of grassland in Inner Mongolia, P. R. China P. Schönbach, H. Wan, Anne Schiborra, Katrin Müller, M. Gierus, B. M. Tas, A. Susenbeth and F. Taube – Kiel Passage rate of the liquid and particle ingesta phase in goat kids fed at different dietary crude protein levels Ursula Boeser, J. Hummel and K.-H. Südekum – Bonn The gastrointestinal flora of healthy lovebirds (Agapornis spp.) fed a starch-, fat- or fibre-rich diet Ulrike Kümmel, Jutta Verspohl, Petra Wolf and J. Kamphues – Hannover

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9

Free topics 76.

77. 78.

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80. 81. 82.

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85. 86.

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Effect of hulless barley varieties with different β-glucan content on intestinal microbiota in pigs R. Pieper, R. Jha, A. Van Kessel, B. Rossnagel, W. B. Souffrant and P. Leterme – Dummerstorf/Saskatchewan (Kanada) Influence of dietary fibre on the oral bioavailability of quercetin (Q) from different Q sources in pigs Birga Müller-Siegwardt, R. Blank and S. Wolffram – Kiel Impact of grazing intensity on feed intake, herbage mass, and animal productivity in the steppe of Inner Mongolia, China Katrin Müller, L. Lin, C. Wang, T. Glindemann, Anne Schiborra, P. Schönbach, H. Wan, B.M. Tas, M. Gierus, F. Taube and A. Susenbeth – Kiel Metabolic and histological traits in quails fed with either transgenic (Bt) or with isogenic maize for several generations Nicole Scholtz, Ute Müller, Ingrid Halle, G. Flachowsky and Helga Sauerwein – Bonn/Braunschweig Suitability of a triaxial accelerometer to monitor behaviour of goats at pasture M. Moreau, S. Siebert, A. Buerkert and Eva Schlecht – Kassel/Göttingen Microbiota in the gastrointestinal tract of weaned piglets with emphasis on yeasts V. Urubschurov, P. Janczyk, R. Pieper and W.B. Souffrant – Dummerstorf Changes in feed resources in Bolivian mountain forests and in their utlisation by cattle during the dry and prehumid season Svenja Marquardt, H. Alzérreca, F. D. Encinas, S. Beck, M. Kreuzer and A. C. Mayer – Zurich/Tarija/La Paz (Bolivia) The influence of trimethylamine (TMA) precursors on TMA content in egg yolks of laying hens in dependence on flavincontaining monooxygenase 3 (FMO3) genotype Katja Kretzschmar, S. Weigend, S. Dänicke and R. Preisinger – Mariensee/ Braunschweig/Cuxhaven Effects of different doses of sodium chloride on the acid-base balance of horses Ann-Marie Müller, Kristin Romanowski, Andreas Vernunft, W. Kanitz, Carola Wolf, Ellen Kienzle, Pat Harris and Annette Zeyner – Rostock/Dummerstorf/München/Waltham A molecular biological approach to study the ciliated protozoa in the hindgut-flora of horses N. M. Ständer and M. Coenen – Leipzig Birth weight affects muscle fiber size and myosin heavy-chain isoform gene expression in the longissimus muscle of slaughter pigs G. Bee and J.-Y. Deru – Posieux

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106 107 108

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111 112

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88.

Effect of an experimental Ascaridia galli infection and non starch polysaccharides on growth performance and feed utilization in laying hen chicks G. Daş,, Julia Humburg, M. Gauly and Hj. Abel – Göttingen Dietary fibre content has a bigger influence on apparent nutrient digestibility in growing/finishing pigs than the bedding material Kathrin Bühler, B. Bucher and C. Wenk – Zurich

113

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Undesired materials 89.

90.

91.

92.

Deoxynivalenol residues in serum, bile and milk of dairy cows fed diets with different concentrate proportions in presence and absence of Fusarium toxin contaminated triticale Christina Keese, U. Meyer, Hana Valenta, J. Rehage, A. Starke, Ina Weber, G. Breves and S. Dänicke– Braunschweig/Hannover Effects of deoxynivalenol (DON) contaminated feed and varying supplementation levels of vitamin E and selenium on performance and health of pigs Susanne Döll, J. Schrickx, H. Schenkel, Johanna Fink-Gremmels and S. Dänicke – Braunschweig/Utrecht/Hohenheim Cytotoxic and inflammatory effects of deoxynivalenol (DON) and lipopolysaccharides (LPS) on porcine alveolar macrophages Susanne Döll, J. Schrickx, S. Dänicke and Johanna Fink-Gremmels – Utrecht/Braunschweig Effects of the Fusarium toxin deoxynivalenol (DON) and infectious bursal disease virus (IBDV) infection of broilers on RNA, DNA and protein concentration of the bursa cloacalis and the spleen Julia Pappritz, Silke Rautenschlein, Tanja Goyarts and S. Dänicke Braunschweig/Hannover

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Transport- and epithelial physiology 93. 94.

95.

96.

Effects of dietary N supply on intestinal glucose transport in ruminating goats G. Breves, Alexandra Muscher and B. Schröder – Hannover Adaptation of intestinal glucose transport in goats to different dietary carbohydrate sources Meike Zurich, B. Schröder, Sabine Leonhard-Marek and G. Breves – Hannover Influence of neurotransmitters on tight junction expression and proliferation of primary cultured epithelial cells from porcine colon Carola Petto, G. Gäbel, Martina Böttner, T. Wedel and Helga Pfannkuche – Leipzig/Kiel Extracellular Mg2+ status influences expression and functional activity of the rumen epithelium Na+/Mg2+ exchanger Monika Schweigel, T. Viergutz and M. Kolisek – Dummerstorf/Berlin

119 120

121

122

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97. 98. 99.

Intrinsic neural regulation of epithelial secretion in the porcine proximal colon Helga Pfannkuche, Carola Petto and G. Gäbel – Leipzig Detection of NHE1 and NHE3 mRNA in omasal epithelium of weanling goat Z. Shen, L. Sun, H. Zhao, W. Yang and H. Martens – Nanjing/Berlin Electrogenic transport mechanisms for short-chain fatty acids in sheep rumen epithelium R. Rackwitz, J. Aschenbach, Petra Philipp and G. Gäbel – Leipzig

123 124 125

Animal feed 100. 101.

102. 103.

104. 105. 106. 107. 108. 109.

12

Energetic Evaluation of Glycerol in Ruminants Eva Eckl, H. Steingaß and W. Drochner – Stuttgart-Hohenheim Investigations on Cry1Ab protein transfer: Analysis of blood plasma and milk of dairy cows fed genetically modified maize (MON810) V. Paul, Christiane Albrecht, P. Gürtler, Kerstin Steinke, W. Preißinger, Steffi Wiedemann, H. Spiekers, F. J. Schwarz and H. H. D. Meyer – Freising-Weihenstephan/Grub/Bern Resistance of the cutaneous gastric mucosa to acid challenge depends on the physical form of the diet in reared piglets Sabine Leonhard-Marek, Verena Keller and J. Kamphues – Hannover Effects of the diet’s physical form (meal/pellets), particle size and addition of lignocellulose on the integrity of gastric mucosa in reared piglets Verena Keller, Venja Taube, A. Beineke, Sabine Leonhard-Marek and J. Kamphues – Hannover Effect of including dried distillers grains with solubles (DDGS) as a protein source in diets of fattening broilers I. Youssef, Claudia Westfahl and J. Kamphues – Hannover Ensiling natively moist seeds of field bean and pea and the influence of conservation on tannins Annett Gefrom, Edda Maria Ott and Annette Zeyner – Rostock Model silages in comparison: vacuum packed Rostock model silages (ROMOS) versus glass jar silages Sandra Hoedtke, Edda Maria Ott and Annette Zeyner – Rostock Investigations on the ensilability of Common vetch seeds (Vicia sativa) D. Marquardt, Edda Maria Ott, Lisa Dittmann and Annette Zeyner – Rostock Effect of rapeseed cake on the performance of laying hens Anna Selena Röttger, I. Halle, S. Dänicke and G. Flachowsky – Braunschweig Interaction of chemical composition and ruminal degradability of maize stover of different varieties and at various stages of maturity Friederike Zeller and F. J. Schwarz – Freising-Weihenstephan

126 127

128 129

130 131 132 133 134 135

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111.

Effects of diets’ physical form (grinding intensity; meal/pelleted) on the milieu (pH, chloride concentration and dry matter content) within the stomach content of pigs Sylvia Köttendorf, Anne Mößeler and J. Kamphues – Hannover Effect of grinding intensity in complete diets on feces quality (water content / consistency) of sows at different stages of reproduction Anne Warzecha, Anne Mößeler, Petra Wolf and J. Kamphues – Hannover

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Vitamins 112. 113.

114.

Induction of a mild diet-induced oxidative stress and effects of quercetin (Q) on the α-tocopherol (TOC) and oxidative status in piglets Miriam Lühring, R. Blank and S. Wolffram – Kiel The influence of thiamine supplementation and varying roughage/concentrate proportions on selected fermentation parameters in RUSITEC Denise Völker, Liane Hüther, Wiebke Bigalke and Hj. Abel – Göttingen/Braunschweig Effects of a niacin supplementation at different forage-to-concentrate ratios on milk parameters and milk fat composition of dairy cows Inka-Donata Niehoff, Liane Hüther and P. Lebzien – Braunschweig

138 139

140

Aminoacids and nitrogen 115. 116. 117.

118. 119. 120.

Effect of dietary fibre sources on the basal endogenous losses of amino acids measured at the terminal ileum of broilers H. Kluth and M. Rodehutscord – Halle (Saale) A low protein diet modulates electrolyte metabolism in goats Alexandra Muscher, G. Breves and Korinna Huber – Hannover Influence of dietary protein supply on liver metabolism in growing goats Korinna Huber, Diana Peters, M. Rodehutscord, E. Pfeffer and G. Breves – Hannover/Halle/Bonn Antagonism between branched-chain amino acids affects Isoleucine requirement of the piglet M. K. Wiltafsky and F. X. Roth – Freising-Weihenstephan Dietary lysine concentration influences plasma and tissue carnitine concentrations in piglets Maren Fischer, F. Hirche, H. Kluge, K. Eder – Halle (Saale) Effect of exocrine pancreatic insufficiency (experimentally induced by ligation of the pancreatic duct) on endogenous nitrogen losses (prececal and total) in fistulated minipigs fed an almost N-free diet Anne Mößeler, H. Loock, Jessamyn Classen, P. C. Gregory and J. Kamphues – Hannover

141 142 143

144 145 146

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121.

122. 123. 124. 125.

126. 127.

128.

Effect of graded dietary tryptophan levels on L-[1-13C]leucine oxidation and nitrogen deposition in growing pigs U. Hennig, P. Junghans, J. Bartelt, C. Relandeau, A. Tuchscherer, Cornelia C. Metges – Dummerstorf/Cuxhaven/Paris Determination of standardized ileal digestibilities of crude protein and amino acids in legume seeds for grower pigs D. Jezierny, R. Mosenthin and M. Eklund – Stuttgart-Hohenheim Effect of dietary fibre in threonine limiting diets on nitrogen retention in growing pigs Britta Blank, Eva Schlecht and A. Susenbeth – Kiel/Witzenhausen Determination of the Valine requirement of piglets M. K. Wiltafsky, B. Schmidtlein and F. X. Roth – Freising-Weihenstephan Comparison of different procedures for determination of apparent digestibility of crude protein in poultry diets Angela Sünder, Claudia Westfahl, I. Youssef, J. Kamphues and F. Liebert – Göttingen/Hannover Investigations to improve the reliabilty of optimal dietary amino acid ratio concepts in growing chicken C. Wecke and F. Liebert – Göttingen Effect of dietary amino acid profile on the δ13C of selected amino acids in rainbow trout, Oncorhynchus mykiss U. Focken, J. S. O. McCullaugh and Julia Gaye-Siessegger – StuttgartHohenheim/Oxford Variation in plant-mediated proteolysis among 10 diploid perennial ryegrass (Lolium perenne L.) genotypes M. Lösche, H. Salama, M. Gierus, A. Herrmann, P. Voss and F. Taube – Kiel

147

148 149 150 151

152 153

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Energetics 129. 130.

Studies on energy requirement for growing pigs kept under practical housing conditions Maike Naatjes, Helga Andree and A. Susenbeth – Kiel Effects of weight loss programs in cats with dry foods differing in protein content Brigitta Wichert, Barbara Zottmaier, B. Bucher, C. Wenk and M. Wanner – Zurich

155 156

Effects on the environment 131. 132.

14

Inhibitory effect of four saturated fatty acids on different methanogenic Archaea in pure cultures S. Bucher, L. Meile, M. Kreuzer and Carla R. Soliva – Zurich Methanogenic potential and C-isotope fractionation during methane formation as determined in dairy cows fed three diet types represented by either C3- or C4-plants Fenja Klevenhusen, S. M. Bernasconi, M. Kreuzer, Carla R. Soliva – Zurich

157 158

133.

Methane reduction potential of tannins-containing plants using an in vitro rumen fermentation system A. Jayanegara, H. P. S. Makkar and K. Becker – Stuttgart-Hohenheim

159

Workshop: Potenziale der Tierernährung zur Verbesserung der Ressourceneffizienz W1. W2. W3. W4. W5.

Emissions of greenhouse gases and gaseous air pollutants – a challenge for animal nutrition U.Dämmgen and H.-D.Haenel – Braunschweig Nutrition: Key to methane mitigation in ruminants M. Kreuzer and Carla R. Soliva – Zurich Utilisation and excretion of nitrogen in livestock – Key points A. Susenbeth – Kiel Can we further improve the efficiency of utilisation of phosphorus? M. Rodehutscord – Halle (Saale) High contents of Zinc and Copper in dung from agricultural livestock: a problem to animal nutrition? W. Windisch, T. Kickinger and H. Würzner –Wien

163 168 172 179 184

Communications of the Committee for Requirement Standards of the Society of Nutrition Physiology Mitteilungen des Ausschusses für Bedarfsnormen New Equations for Predicting Metabolisable Energy of Grass and Maize Products for Ruminants

191

Prediction of Metabolisable Energy of compound feeds for pigs

199

List of Authors

205

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