Ortwin Simon

Overview

Best Publications

• Performance, diarrhea incidence, and occurrence of Escherichia coli virulence genes during long-term administration of a probiotic Enterococcus faecium strain to sows and piglets.

  D. Taras;W. Vahjen;M. Macha;O. Simon

  283
  Citations

• Probiotic feed additives - effectiveness and expected modes of action

  O. Simon;A. Jadamus;W. Vahjen

  190
  Citations

• Bacterial responses to different dietary cereal types and xylanase supplementation in the intestine of broiler chicken.

  Katrin Hübener;W. Vahjen;O. Simon

  185
  Citations

• Comparative studies on the in vitro properties of phytases from various microbial origins

  F A Igbasan;K Männer;G Miksch;R Borriss

  176
  Citations

• Effects of dietary fat type and xylanase supplementation to rye-based broiler diets on selected bacterial groups adhering to the intestinal epithelium. on transit time of feed, and on nutrient digestibility.

  Sven Dänicke;Wilfried Vahjen;Ortwin Simon;Heinz Jeroch

  159
  Citations

• Influence of xylanase-supplemented feed on the development of selected bacterial groups in the intestinal tract of broiler chicks

  W. Vahjen;K. Gläser;K. Schäfer;O. Simon

  154
  Citations

• Response of performance characteristics and fecal consistency to long-lasting dietary supplementation with the probiotic strain Bacillus cereus var. toyoi to sows and piglets

  David Taras;Wilfried Vahjen;Moritz Macha;Ortwin Simon

  148
  Citations

• Progression of mycotoxin and nutrient concentrations in wheat after inoculation with Fusarium culmorum.

  K Matthäus;S Dänicke;W Vahjen;O Simon

  144
  Citations

• An investigation into the variability of extract viscosity of wheat‐relationship with the content of non‐starch‐polysaccharide fractions and metabolisable energy for broiler chickens

  G. Dusel;H. Kluge;Karola Glaser;O. Simon

  124
  Citations

• Isolation and identification of mixed linked beta -glucan degrading bacteria in the intestine of broiler chickens and partial characterization of respective 1,3-1,4-beta -glucanase activities.

  Lutz Beckmann;Ortwin Simon;Wilfried Vahjen

  121
  Citations

• Probiotics in pigs — modulation of their intestinal distribution and of their impact on health and performance

  D. Taras;W. Vahjen;O. Simon

  110
  Citations

• Growth behaviour of a spore forming probiotic strain in the gastrointestinal tract of broiler chicken and piglets.

  Anke Jadamus;W. Vahjen;O. Simon

  107
  Citations

• Effect of the probiotic Enterococcus faecium NCIMB10415 on cell numbers of total Enterococcus spp., E. faecium and E. faecalis in the intestine of piglets.

  Vahjen W;Taras D;Simon O

  98
  Citations

• Comparison of a xylanase and a complex of non starch polysaccharide-degrading enzymes with regard to performance and bacterial metabolism in weaned piglets

  Wilfried Vahjen;Tanja Osswald;Klaus Schäfer;Ortwin Simon

  97
  Citations

• Interactions between dietary fat type and enzyme supplementation in broiler diets with high pentosan contents: effects on precaecal and total tract digestibility of fatty acids, metabolizability of gross energy, digesta viscosity and weights of small intestine

  Sven Dänicke;Heinz Jeroch;Wolfgang Böttcher;Ortwin Simon

  95
  Citations

• Studies on the effects of essential-oil-based feed additives on performance, ileal nutrient digestibility, and selected bacterial groups in the gastrointestinal tract of piglets.

  K. Maenner;W. Vahjen;O. Simon

  95
  Citations

• Estimation of rate of protein synthesis by constant infusion of labelled amino acids in pigs

  Unknown

  92
  Citations

• Interactions between dietary fat type and xylanase supplementation when rye-based diets are fed to broiler chickens 2. Performance, nutrient digestibility and the fat-soluble vitamin status of livers.

  S. Dänicke;O. Simon;H. Jeroch;M. Bedford

  88
  Citations

• In vitro and in vivo characteristics of bacterial phytases and their efficacy in broiler chickens

  E.A.I. Elkhalil;K. Männer;R. Borriss;O. Simon

  78
  Citations

• Interactions between dietary fat type and xylanase supplementation when rye-based diets are fed to broiler chickens. 1. Physico-chemical chyme features.

  S Dänicke;O Simon;H Jeroch;M Bedford

  77
  Citations

• Specific enumeration of the probiotic strain Enterococcus faecium NCIMB 10415 in the intestinal tract and in faeces of piglets and sows.

  M Macha;D Taras;W Vahjen;A Arini

  75
  Citations

• Effects of conjugated linoleic acids on protein to fat proportions, fatty acids, and plasma lipids in broilers.

  Ortwin Simon;Klaus Männer;Klaus Schäfer;Angelos Sagredos

  72
  Citations

• Influence of the probiotic strain Bacillus cereus var. toyoi on the development of enterobacterial growth and on selected parameters of bacterial metabolism in digesta samples of piglets.

  A Jadamus;W Vahjen;K Schafer;O Simon

  68
  Citations

• Apparent precaecal digestibility of nutrients and level of endogenous nitrogen in digesta of the small intestine of growing pigs as affected by various digesta viscosities.

  J Bartelt;Anke Jadamus;Frigga Wiese;Ewa Swiech

  67
  Citations

• Xylanase Supplementation of Wheat-Based Rations for Broilers: Influence of Wheat Characteristics

  George Dusel;Holger Kluge;Heinz Jeroch;Ortwin Simon

  65
  Citations