Browsing by Author "McEwan, Neil R."

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  • Edwards, Joan E.; McEwan, Neil R.; Wallace, R. John (2008-06-01)
    Aims: The recent EU ban of growth-promoting antibiotics in animal production was based on fears concerning antibiotic resistance being transmitted to human pathogens. This paper explores the adaptation mechanism of a common ...
  • McEwan, Neil R.; Gatherer, Derek (2003-08)
    Periodicity was quantified in 4289 Escherichia coli K12 confirmed and putative protein sequences, using a simple chi-square technique previously shown to reveal triplet period periodicity in coding DNA. Periodicities were ...
  • Newbold, C. James; Hackstein, J. H. P.; McEwan, Neil R.; Regensbogenova, M.; Moon-van der Staay, S. Y.; van der Staay, G. W. M.; Javorsky, P.; Pristas, P. (2009-10-06)
    Aims: This work was carried out to develop a rapid molecular profiling technique to screen ciliate populations in the rumen of sheep. Methods and Results: DGGE was used to study the ciliate diversity in the rumen of sheep. ...
  • Regensbogenova, M.; Pristas, P.; Javorsky, P.; Moon-van der Staay, S. Y.; van der Staay, G. W. M.; Hackstein, J. H. P.; Newbold, C. James; McEwan, Neil R. (2004-08)
    Aims: This work was carried out to develop a rapid molecular profiling technique to screen ciliate populations in the rumen of sheep. Methods and Results: DGGE was used to study the ciliate diversity in the rumen of sheep. ...
  • Newbold, C. James; Worgan, Hilary; Pinloche, Eric; Skrivanova, E.; Marounek, Milan; McEwan, Neil R. (2011-06-07)
    The effect of caprylic acid, either in its pure form, or as Akomed R, on the microbial community of the stomach and caecum of farmed rabbits was investigated. This fatty acid, which is often added to the diet of farmed ...
  • Paillard, Delphine; Richardson, Anthony J.; Walker, Nicola D.; McKain, Nest; McEwan, Neil R.; Wallace, R. John; Vercoe, Philip E.; Chaudhary, Lal C. (2006-10-18)
    The aim of this study was to identify ruminal bacteria that form stearic acid (18 : 0) from linoleic acid (cis-9,cis-12-18 : 2). One 18 : 0-producing isolate, P-18, isolated from the sheep rumen was similar in morphology ...
  • Newbold, C. James; Graham, R. C.; McEwan, Neil R.; Wallace, R. J.; Duval, S. M. (2009-11-30)
    Aims: To investigate the mode of action of a blend of essential oil compounds on the colonization of starch-rich substrates by rumen bacteria. Methods and Results: Starch-rich substrates were incubated, in nylon bags, in ...
  • Abecia, Leticia; Fondevila, Manuel; Balcells, Joaquim; Edwards, Joan E.; Newbold, C. James; McEwan, Neil R. (2007-07)
    The effect feeding antibiotics has on the bacterial population of the rabbit caecum was investigated. No changes in total volatile fatty acid production or total bacterial counts were observed compared with nonantibiotic ...
  • Jimenez, Hugo R.; McEwan, Neil R.; Theodorou, Michael K.; Edwards, Joan E.; Kingston-Smith, Alison H.; Sanderson, Ruth (2009-06-04)
    The primary objective of the conference is to promote understanding of the complex microbial ecosystems present in the digestive tract of mammals and other higher animals and their interaction with their hosts. It is a ...
  • Fondevila, Manuel; Balcells, Joaquim; Abecia, Leticia; McEwan, Neil R. (2007-02-01)
    Aims: To study the effect of microbial community of the rabbit does as influenced by dietary factors, on the development of the gut microbiota of their litters. Methods and Results: Twenty-four lactating does were given a ...
  • McEwan, Neil R.; Lobley, G. E.; Fondevila, Manuel; Abecia, Leticia; Balcells, Joaquim (2007)
    Aims: To study the effect of the type of antibiotic used in medicated diets against pathogens and the feeding level on the microbial biodiversity in the rabbit caecum. Methods and Results: Three groups of eight does were ...
  • van Hoek, A. H.; Jouany, Jean-Pierre; al, et; Boxma, B.; Pristas, P.; Newbold, C. James; Severing, E.; McEwan, Neil R.; Huynen, M. A.; Ricard, G.; Michalowski, T. (2009-07-08)
    Background The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the one ...
  • Boxma, Brigitte; Ricard, Guenola; van Hoek, Angela Ham; Severing, Edouard; Moon-van der Staay, Seung-Yeo; van der Staay, Georg W. M.; van Alen, Theo A.; de Graaf, Rob M.; Cremers, Geert; Kwantes, Michiel; McEwan, Neil R.; Newbold, Charles James; Jouany, Jean-Pierre; Michalowski, Tadeusz; Pristas, Peter; Huynen, Martijn A.; Hackstein, Johannes H. P. (2007-11-16)
    Background: The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the ...
  • Nagamine, T.; Michalowski, T.; Newbold, C. James; Ricard, G.; Dutilh, B. E.; McEwan, Neil R.; Jouany, Jean-Pierre; McIntosh, Freda M.; Mitsumori, M.; al, et; Macheboeuf, Didier (2009-07-15)
    Background The horizontal transfer of expressed genes from Bacteria into Ciliates which live in close contact with each other in the rumen (the foregut of ruminants) was studied using ciliate Expressed Sequence Tags (ESTs). ...
  • McCartney, Christine A.; McEwan, Neil R.; Snelling, Tim J.; Borø, Stina; Worgan, Hilary (2010-03-09)
    Bacteria were isolated from rabbit faeces using equine caecal fluid as a growth medium. Two new isolates of the genus Streptococcus are described in terms of their biochemical properties. One of these has a 16S rRNA gene ...
  • Snelling, Tim; Pinloche, Eric Jean-Yves; Worgan, Hilary Jane; Newbold, Charles James; McEwan, Neil R. (2011)
    Single cell morphotypes of the species Triadinium caudatum and Spirodinium equi, together with a representative of the genus Blepharocorys (Blepharocorys sp.) were used for phylogenetic analysis based on their 18S rRNA ...
  • Balcells, Joaquim; McEwan, Neil R.; Abecia, Leticia; Fondevila, Manuel; Newbold, C. James; Edwards, Joan E. (2008-12-11)
    The diversity of bacteria present in the caecum of the rabbit was investigated. Partial bacterial 16S rRNA genes from a digested sample collected from the caecum of an adult rabbit were amplified by PCR. Sequence analysis ...
  • Newbold, C. James; Travis, A. J.; Chareyron, E. N.; Nelson, Nancy; Calza, R. E.; Duval, S. M.; Wallace, R. John; McEwan, Neil R.; McIntosh, Freda M.; Eschenlauer, S. C. P. (2009-09-25)
    An NAD+-dependent glutamate dehydrogenase (GDH; EC 1.4.1.24) was cloned from the ruminal ciliate protozoan, Entodinium caudatum. The gene had high sequence similarity to GDH genes from the Bacteroides (class) ¿ a class of ...
  • Newbold, C. James; McEwan, Neil R.; Calza, Roger E.; Chareyron, Emilie N.; Duval, Stéphane M.; Eschenlauer, Sylvain C. P.; McIntosh, Freda M.; Nelson, Nancy; Travis, Anthony J.; Wallace, R. John (2005-06)
    An NAD+-dependent glutamate dehydrogenase (GDH; EC 1.4.1.24) was cloned from the ruminal ciliate protozoan, Entodinium caudatum. The gene had high sequence similarity to GDH genes from the Bacteroides (class) – a class of ...
  • Yanez-Ruiz, David R.; Hart, K. J.; Newbold, C. James; McEwan, Neil R.; Duval, S. M. (2009-05-21)
    The removal of antibiotic growth-promoters has led to an increased interest in alternative means of manipulating rumen fermentation. In this review we consider one of the possible alternatives: natural plant products ...