• 9795 Citations
1978 …2019

Research output per year

If you made any changes in Pure these will be visible here soon.

Research Output

Filter
Article
2000

Chemical composition and degradation characteristics of foliage of some African multipurpose trees

El Hassan, S. M., Lahlou Kassi, A., Newbold, C. J. & Wallace, R. J., 31 Jul 2000, In : Animal Feed Science and Technology. 86, 1-2, p. 27-37 11 p.

Research output: Contribution to journalArticle

63 Citations (Scopus)
4 Citations (Scopus)

Proteolytic activity of ruminal digesta during the feeding cycle in sheep receiving grass hay/concentrate or maize silage/concentrate diets

Wallace, R. J., Wallace, S. J. A. & McKain, N., Apr 2000, In : Letters in Applied Microbiology. 30, 4, p. 317-319 3 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Stability and stabilization of potential feed additive enzymes in rumen fluid

Morgavi, D. P., Newbold, C. J., Beever, D. E. & Wallace, R. J., Feb 2000, In : Enzyme and Microbial Technology. 26, 2-4, p. 171-177 7 p.

Research output: Contribution to journalArticle

46 Citations (Scopus)

The 3' untranslated region of messages in the rumen protozoa Entodinium caudatum

McEwan, N. R., Eschenlauer, S. C. P., Calza, R. E., Wallace, R. J. & Newbold, C. J., Aug 2000, In : Protist. 151, 2, p. 139-146 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)
1999

A xylanase produced by the rumen anaerobic protozoan Polyplastron multivesiculatum shows close sequence similarity to family 11 xylanases from Gram-positive bacteria

Devillard, E., Newbold, C. J., Scott, K. P., Forano, E., Wallace, R. J., Jouany, J. P. & Flint, H. J., 1 Dec 1999, In : FEMS Microbiology Letters. 181, 1, p. 145-152 8 p.

Research output: Contribution to journalArticle

45 Citations (Scopus)

Effect of adding acetogenic bacteria on methane production by mixed rumen microorganisms

Lopez, S., McIntosh, F. M., Wallace, R. J. & Newbold, C. J., 31 Mar 1999, In : Animal Feed Science and Technology. 78, 1-2, p. 1-9 9 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)

Influence of 1-[(E)-2-(2-methyl-4-nitrophenyl)diaz-1-enyl]pyrrolidine- 2-carboxylic acid and diphenyliodonium chloride on ruminal protein metabolism and ruminal microorganisms

Floret, F., McKain, N., Newbold, C. J., Wallace, R. J., Chaudhary, L. C., Ellis, W. C. & El Hassan, S., Jul 1999, In : Applied and Environmental Microbiology. 65, 7, p. 3258-3260 3 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Influence of foliage from different accessions of the sub-tropical leguminous tree, Sesbania sesban, on ruminal protozoa in Ethiopian and Scottish sheep

Teferedegne, B., McIntosh, F. M., Osuji, P. O., Odenyo, A., Wallace, R. J. & Newbold, C. J., 31 Mar 1999, In : Animal Feed Science and Technology. 78, 1-2, p. 11-20 10 p.

Research output: Contribution to journalArticle

58 Citations (Scopus)

Influence of sodium fumarate addition on rumen fermentation in vitro

López, S., Valdés, C., Newbold, C. J. & Wallace, R. J., 1 Jan 1999, In : British Journal of Nutrition. 81, 1, p. 59-64 6 p.

Research output: Contribution to journalArticle

102 Citations (Scopus)
5 Citations (Scopus)

Protozoal sequences may reveal additional isoforms of the 14-3-3 protein family

McEwan, N. R., Eschenlauer, S. C., Calza, R. E., Wallace, R. J. & Newbold, C. J., Oct 1999, In : Protist. 150, 3, p. 257-264 8 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Role of peptides in rumen microbial metabolism: review

Wallace, R. J., Atasoglu, C. & Newbold, C. J., 1 Feb 1999, In : Asian-Australasian Journal of Animal Sciences. 12, 1, p. 139-147 9 p.

Research output: Contribution to journalArticle

22 Citations (Scopus)
1998

Changes in the microbial population of a rumen-simulating fermenter in response to yeast culture

Newbold, C. J., McIntosh, F. M. & Wallace, R. J., 1 Jun 1998, In : Canadian Journal of Animal Science. 78, 2, p. 241-244 4 p.

Research output: Contribution to journalArticle

41 Citations (Scopus)

De Novo Synthesis of Amino Acids by the Ruminal Bacteria Prevotella bryantii B14,Selenomonas ruminantium HD4, and Streptococcus bovis ES1

Atasoglu, C., Valdés, C., Walker, N. D., Newbold, C. J. & Wallace, R. J., Aug 1998, In : Applied and Environmental Microbiology. 64, 8, p. 2836-2843 8 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Influence of dietary acetylated peptides on fermentation and peptidase activities in the sheep rumen

Witt, M. W., Newbold, C. J. & Wallace, R. J., Jun 1998, In : Journal of Applied Microbiology. 84, 5, p. 847-851 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
18 Citations (Scopus)

Phylogenetic position and codon usage of two centrin genes from the rumen ciliate protozoan, Entodinium caudatum

Eschenlauer, S. C. P., McEwan, N. R., Calza, R. E., Wallace, R. J., Onodera, R. & Newbold, C. J., 1998, In : FEMS Microbiology Letters. 166, 1, p. 147-154 8 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Uptake of acetylated peptides from the small intestine in sheep and their nutritive value in rats

Wallace, R. J., Min, W. K., Witt, M. W., Grant, G., MacRae, J. C., Newbold, C. J., Maeng, W. J. & Rode, L. M., Jul 1998, In : British Journal of Nutrition. 80, 1, p. 101-108 8 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Variation in proteinase activities in the rumen

Falconer, M. L. & Wallace, R. J., Mar 1998, In : Journal of Applied Microbiology. 84, 3, p. 377-382 6 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)
1997

Peptidase activity of human colonic bacteria

Wallace, R. J. & McKain, N., Aug 1997, In : Anaerobe. 3, 4, p. 251-257 7 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Peptidases of the rumen bacterium Prevotella ruminicola

Wallace, R. J., McKain, N., Broderick, G. A., Rode, L. M., Walker, N. D., Newbold, C. J. & Kopecny, J., Feb 1997, In : Anaerobe. 3, 1, p. 35-42 8 p.

Research output: Contribution to journalArticle

40 Citations (Scopus)

Purification and characterisation of a lysozyme-like enzyme from the rumen ciliate Entodinium caudatum

Martin, H. C., McIntosh, F. M., Wallace, R. J. & Newbold, C. J., 1997, In : Reproduction, Nutrition, Development. 37, Suppl. 1, p. 47-48 2 p.

Research output: Contribution to journalArticle

1996

Effect of yeast culture on rumen fermentation, microbial protein flow from the rumen and live-weight gain in bulls given high cereal diets

El Hassan, S. M., Newbold, C. J., Wallace, R. J., Edwards, I. E. & Topps, J. H., 1 Feb 1996, In : Animal Science. 62, 1, p. 43-48 6 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)
11 Citations (Scopus)

Influence of dietary rumen-degradable protein on bacterial growth in the rumen of sheep receiving different energy sources

Chikunya, S., Newbold, C. J., Rode, L., Chen, X. B. & Wallace, R. J., 1 Dec 1996, In : Animal Feed Science and Technology. 63, 1-4, p. 333-340 8 p.

Research output: Contribution to journalArticle

46 Citations (Scopus)

Inhibition by 1,10-phenanthroline of the breakdown of peptides by rumen bacteria and protozoa

Wallace, R. J., Newbold, C. J. & McKain, N., Apr 1996, In : Journal of Applied Bacteriology. 80, 4, p. 425-430 6 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Mode of action of the yeast Saccharomyces cerevisiae as a feed additive for ruminants

Newbold, C. J., Wallace, R. J. & McIntosh, F. M., 1 Aug 1996, In : British Journal of Nutrition. 76, 2, p. 249-261 13 p.

Research output: Contribution to journalArticle

205 Citations (Scopus)

REVIEW: Enhancing amino acid flow to the small intestine in ruminants

Wallace, R. J., 1996, In : Information for Amino Acid Techniques. 11, p. 1-15 15 p.

Research output: Contribution to journalArticle

Ruminal microbial metabolism of peptides and amino acids

Wallace, R. J., 1 Apr 1996, In : The Journal of Nutrition. 126, 4 Suppl., p. 1326S-1334S 9 p.

Research output: Contribution to journalArticle

87 Citations (Scopus)

The proteolytic systems of ruminal microorganisms

Wallace, R. J., 1996, In : Research Journal of Animal Sciences . 45, Suppl. 1, p. 301-308 8 p.

Research output: Contribution to journalArticle

Open Access
13 Citations (Scopus)
1995

Cleavage of di- and tripeptides by Prevotella ruminicola

Wallace, R. J., Kopecny, J., Broderick, G. A., Walker, N. D., Sichao, L., Newbold, C. J. & McKain, N., Dec 1995, In : Anaerobe. 1, 6, p. 335-343 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Different strains of Saccharomyces cerevisiae differ in their effects on ruminal bacterial numbers in vitro and in sheep

Newbold, C. J., Wallace, R. J., Chen, X. B. & McIntosh, F. M., 1 Jun 1995, In : Journal of Animal Science. 73, 6, p. 1811-1818 8 p.

Research output: Contribution to journalArticle

205 Citations (Scopus)

Isolation of genes encoding β-D-xylanase, β-D-xylosidase and α-L-arabinofuranosidase activities from the rumen bacterium Prevotella ruminicola B(1)4

Gasparic, A., Marinsek-Logar, R., Martin, J., Wallace, R. J., Nekrep, F. V., Flint, H. J. & Martin, J. C., 15 Jan 1995, In : FEMS Microbiology Letters. 125, 2-3, p. 135-141 7 p.

Research output: Contribution to journalArticle

34 Citations (Scopus)
1994

Influence of peptides, amino acids and urea on microbial activity in the rumen of sheep receiving grass hay and on the growth of rumen bacteria in vitro

Soto, R. C., Muhammed, S. A., Newbold, C. J., Stewart, C. S. & Wallace, R. J., Sep 1994, In : Animal Feed Science and Technology. 49, 1-2, p. 151-161 11 p.

Research output: Contribution to journalArticle

63 Citations (Scopus)

Influence of Yucca shidigera extract on ruminal ammonia concentrations and ruminal microorganisms

Wallace, R. J., Arthaud, L. & Newbold, C. J., Jun 1994, In : Applied and Environmental Microbiology. 60, 6, p. 1762-1767 6 p.

Research output: Contribution to journalArticle

175 Citations (Scopus)
1993

Amino acid composition of degradation-resistant peptides in extracellular rumen fluid of sheep

Wallace, R. J., Newbold, C. J., Watt, N. D., Buchan, V. & Brown, D. S., Feb 1993, In : Journal of Agricultural Science. 120, 1, p. 129-133 5 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Breakdown of different peptides by Prevotella (Bacteroides) ruminicola and mixed microorganisms from the sheep rumen

Wallace, R. J., McKain, N. & Broderick, G. A., Jun 1993, In : Current Microbiology. 26, 6, p. 333-336 4 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

Breakdown of N-terminally modified peptides and an isopeptide by rumen microorganisms

Wallace, R. J., Frumholtz, P. P. & Walker, N. D., Sep 1993, In : Applied and Environmental Microbiology. 59, 9, p. 3147-3149 3 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Combined effects of Aspergillus oryzae fermentation extract and monensin on fermentation in the rumen simulation technique (Rusitec)

Newbold, C. J., McKain, N. & Wallace, R. J., Oct 1993, In : Journal of Agricultural Science. 121, 2, p. 241-246 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Isolation and attempted introduction of sugar alcohol-utilizing bacteria in the sheep rumen

Wallace, R. J. & Walker, N. D., Apr 1993, In : Journal of Applied Bacteriology. 74, 4, p. 353-359 7 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

The effect of tetronasin and monensin on fermentation, microbial numbers and the development of ionophore-resistant bacteria in the rumen

Newbold, C. J., Wallace, R. J. & Walker, N. D., Aug 1993, In : Journal of Applied Bacteriology. 75, 2, p. 129-134 6 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)
1992

Acetylation of peptides inhibits their degradation by rumen micro-organisms

Wallace, R. J., Sep 1992, In : British Journal of Nutrition. 68, 2, p. 365-372 8 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Gel filtration studies of peptide metabolism by rumen microorganisms

Wallace, R. J., 1992, In : Journal of the Science of Food and Agriculture. 58, 2, p. 177-184 8 p.

Research output: Contribution to journalArticle

17 Citations (Scopus)

Influence of Aspergillus oryzae fermentation extract on the rumen fermentation and blood constituents in sheep given diets of grass hay and barley

Newbold, C. J., Frumholtz, P. P. & Wallace, R. J., Dec 1992, In : Journal of Agricultural Science. 119, 3, p. 423-427 5 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

In vitro studies of conditions required to protect protein from ruminal degradation by heating in the presence of sugars

Wallace, R. J. & Falconer, M. L., May 1992, In : Animal Feed Science and Technology. 37, 1-2, p. 129-141 13 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Properties of ionophore-resistant Bacteroides ruminicola enriched by cultivation in the presence of tetronasin

Newbold, C. J., Wallace, R. J. & Watt, N. D., Jan 1992, In : Journal of Applied Bacteriology. 72, 1, p. 65-70 6 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)
14 Citations (Scopus)

Selective isolation of bacteria with dipeptidyl aminopeptidase type I activity from the sheep rumen

McKain, N., Wallace, R. J. & Watt, N. D., 15 Aug 1992, In : FEMS Microbiology Letters. 95, 2-3, p. 169-174 6 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)