Search Results - "Walker, N.D."

Effects of active dry yeasts on the rumen microbial ecosystem: Past, present and future by Chaucheyras-Durand, F., Walker, N.D., Bach, A.

“…Active dry yeasts (ADYs) are increasingly used in ruminant nutrition as feed additives to improve feed efficiency and performance and, at the same time, to…”
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Differing effects of 2 active dried yeast (Saccharomyces cerevisiae) strains on ruminal acidosis and methane production in nonlactating dairy cows by Chung, Y-H, Walker, N D, McGinn, S M, Beauchemin, K A

“…Fifteen ruminally cannulated, nonlactating Holstein cows were used to measure the effects of 2 strains of Saccharomyces cerevisiae, fed as active dried yeasts,…”
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Effect of wheat dried distillers grains and enzyme supplementation on growth rates, feed conversion ratio and beef fatty acid profile in feedlot steers by He, Z. X., He, M. L., Zhao, Y. L., Xu, L., Walker, N. D., Beauchemin, K. A., McAllister, T. A., Yang, W. Z.

“…The objectives of this study were to determine: (1) the effect of wheat dried distillers grain with solubles (DDGS) inclusion, and (2) dietary feed enzyme (FE;…”
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3.245 Repetitive transcranial magnetic stimulation of postcentral sulcus – new treatment method of writer's cramp? by Havránková, P, Jech, R, Walker, N.D, Vymazal, J, Ruzicka, E

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Enteric methane emission, milk production, and composition of dairy cows fed 3-nitrooxypropanol by Melgar, A, Lage, C F A, Nedelkov, K, Räisänen, S E, Stefenoni, H, Fetter, M E, Chen, X, Oh, J, Duval, S, Kindermann, M, Walker, N D, Hristov, A N

“…This study examined the effect of 3-nitrooxypropanol (3-NOP), an investigational substance, on enteric methane emission, milk production, and composition in…”
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Comparison of non-encapsulated and encapsulated active dried yeast on ruminal pH and fermentation, and site and extent of feed digestion in beef heifers fed high-grain diets by Jiao, P.X., Wei, L.Y., Walker, N.D., Liu, F.Z., Chen, L.Y., Beauchemin, K.A., Yang, W.Z.

“…•Live yeast (LY) and rumen protected (RP-LY) were evaluated in high-grain fed beef heifers.•Supplementation of LY or RP-LY did not affect DM intake and OM flow…”
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Impact of strain and dose of live yeast and yeast derivatives on in vitro ruminal fermentation of a high-grain diet at two pH levels by Jiao, P.X., He, Z.X., Ding, S., Walker, N.D., Cong, Y.Y., Liu, F.Z., Beauchemin, K.A., Yang, W.Z.

“…The objective of this study was to determine the effects of live yeast (LY) or yeast derivatives (YD) on gas production (GP), dry matter (DM) disappearance…”
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Satellite assessment of Mississippi River plume variability: Causes and predictability by Walker, Nan D.

“…The Mississippi River is the largest river in North America and 6th largest worldwide in terms of discharge. In this study, 5 years (1989–1993) of NOAA…”
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A pepD-like peptidase from the ruminal bacterium, Prevotella albensis by Walker, Nicola D., McEwan, Neil R., Wallace, R. John

“…Peptidases of Prevotella spp. play an important role in the breakdown of protein to ammonia in the rumen. This study describes a peptidase cloned from…”
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Influence of Dipeptidyl Peptidase Inhibitors on Growth, Peptidase Activity, and Ammonia Production by Ruminal Microorganisms by Wang, H, McKain, N, Walker, N.D, Wallace, R.J

“…The aim was to investigate known and potential new inhibitors of dipeptidyl peptidases (DPP) for their effects on ruminal microorganisms. Gly-Phe…”
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Overlapping Sequences with High Homology to Functional Proteins Coexist on Complementary Strands of DNA in the Rumen Bacterium Prevotella albensis by Walker, Nicola D., McEwan, Neil R., Wallace, R.John

“…The potential for two complementary fragments of DNA from a clone from the ruminal bacterium Prevotella albensis to encode sequences with homology to at least…”
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Sensor signal validation using analytical redundancy for an aluminum cold rolling mill by Walker, N.D., Wyatt-Mair, G.F.

“…Seeking a competitive edge in the international market place, astute manufactures are turning increasingly to computer-based process diagnostic systems to…”
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Influence of the concentration of peptides on [ 15 N]ammonia incorporation and de novo synthesis of different amino acids by mixed microorganisms from the sheep rumen in vitro by Atasoglu, C., Walker, N.D., Newbold, C.J., Wallace, R.J.

“…Ammonia plays an important role in providing N for protein synthesis by rumen microorganisms. Studies using [ 15 N]ammonia or [ 15 N]urea indicate that the…”
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Influence of the concentration of peptides on [ 15 N]ammonia incorporation and de novo synthesis of different amino acids by mixed microorganisms from the sheep rumen in vitro by Atasoglu, C., Walker, N.D., Newbold, C.J., Wallace, R.J.

“…Ammonia plays an important role in providing N for protein synthesis by rumen microorganisms. Studies using [ 15 N]ammonia or [ 15 N]urea indicate that the…”
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Breakdown of N-terminally modified peptides and an isopeptide by rumen microorganisms by Wallace, R.J, Frumholtz, P.P, Walker, N.D

“…Treatment of Trypticase peptides with acetic anhydride, succinic anhydride, or maleic anhydride inhibited their breakdown to ammonia by rumen microorganisms by…”
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The Effects of Hurricane Hugo on the Reefs and Associated Environments of St. Croix, U.S. Virgin Islands—A Preliminary Assessment by Hubbard, Dennis K., Parsons, Karla M., Bythell, John C., Walker, N.D.

“…Early in the morning of September 18, 1989, Hurricane Hugo passed over St. Croix in the U.S. Virgin Islands. Winds likely exceeded 150 mph, with gusts…”
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The effect of tetronasin and monensin on fermentation, microbial numbers and the development of ionophore-resistant bacteria in the rumen by Newbold, C J, Wallace, R J, Walker, N D

“…The Gram-negative rumen bacteria Fibrobacter succinogenes S85, Prevotella ruminicola M384 and Veillonella parvula L59 were grown in media containing…”
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