Search Results - "McLeod, K. R."

Constriction of bovine vasculature caused by endophyte-infected tall fescue seed extract is similar to pure ergovaline by Foote, A. P, Harmon, D. L, Brown, K. R, Strickland, J. R, McLeod, K. R, Bush, L. P, Klotz, J. L

“…Ergovaline has been extensively used to study vasoactive effects of endophyte- (Neotyphodium coenophialum) infected tall fescue (Lolium arundinaceum). However,…”
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Glucagon-like peptide-2 (GLP-2) increases small intestinal blood flow and mucosal growth in ruminating calves by Taylor-Edwards, C C, Burrin, D G, Holst, J J, McLeod, K R, Harmon, D L

“…Glucagon-like peptide-2 (GLP-2) increases small intestinal mass and blood flow in nonruminants but its effect in ruminants is unknown. Eight Holstein calves…”
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Evaluation of a ruminally dosed tall fescue seed extract as a model for fescue toxicosis in steers by Koontz, A. F, Bush, L. P, Klotz, J. L, McLeod, K. R, Schrick, F. N, Harmon, D. L

“…Tall fescue (Lolium arundinaceum) toxicosis research is often complicated by a reduction in intake of infected forage or seed, making treatment comparisons…”
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Yucca schidigera extract decreases in vitro methane production in a variety of forages and diets by Xu, M., Rinker, M., McLeod, K.R., Harmon, D.L.

“…This research was conducted to evaluate effects of a Yucca schidigera extract (YSE) on 24 h in vitro rumen fermentation and methane production of diets with…”
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Ruminal and abomasal starch hydrolysate infusions selectively decrease the expression of cationic amino acid transporter mRNA by small intestinal epithelia of forage-fed beef steers by Liao, S F, Vanzant, E S, Harmon, D L, McLeod, K R, Boling, J A, Matthews, J C

“…Although cationic amino acids (CAA) are considered essential to maximize optimal growth of cattle, transporters responsible for CAA absorption by bovine small…”
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small intestinal epithelia of beef steers differentially express sugar transporter messenger ribonucleic acid in response to abomasal versus ruminal infusion of starch hydrolysate by Liao, S.F, Harmon, D.L, Vanzant, E.S, McLeod, K.R, Boling, J.A, Matthews, J.C

“…In mammals, the absorption of monosaccharides from small intestinal lumen involves at least 3 sugar transporters (SugT): sodium-dependent glucose transporter 1…”
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Effects of diet forage:concentrate ratio and metabolizable energy intake on visceral organ growth and in vitro oxidative capacity of gut tissues in sheep by McLeod, K. R, Baldwin, R. L., 6th

“…We used 28 crossbred wether lambs to determine the effects of dietary forage:concentrate ratio and metabolizable energy intake on visceral organ growth and…”
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Effects of slow-release urea on ruminal digesta characteristics and growth performance in beef steers by Taylor-Edwards, C.C, Hibbard, G, Kitts, S.E, McLeod, K.R, Axe, D.E, Vanzant, E.S, Kristensen, N.B, Harmon, D.L

“…Two experiments were conducted to evaluate the effects of slow-release urea (SRU) versus feed-grade urea on ruminal metabolite characteristics in steers and…”
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Influence of ruminal and postruminal carbohydrate infusion on visceral organ mass and adipose tissue accretion in growing beef steers by McLeod, K.R, Baldwin, R.L. VI, Solomon, M.B, Baumann, R.G

“…Forty crossbred beef steers (243 ± 2 kg of BW) with ruminal and abomasal infusion catheters were used to test 2 hypotheses: 1) visceral mass is responsive to…”
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Effect of intake on fasting heat production, respiratory quotient and plasma metabolites measured using the washed rumen technique by Kim, D. H., McLeod, K. R., Koontz, A. F., Foote, A. P., Klotz, J. L., Harmon, D. L.

“…The objective was to investigate the effect of intake before fasting on concentrations of metabolites and hormones, respiratory quotient (RQ) and fasting heat…”
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Influence of slow-release urea on nitrogen balance and portal-drained visceral nutrient flux in beef steers by Taylor-Edwards, C.C, Elam, N.A, Kitts, S.E, McLeod, K.R, Axe, D.E, Vanzant, E.S, Kristensen, N.B, Harmon, D.L

“…Two experiments were conducted to evaluate the effects of slow-release urea (SRU) versus feed-grade urea on portal-drained visceral (PDV) nutrient flux,…”
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Effects of a dietary Aspergillus oryzae extract containing α-amylase activity on performance and carcass characteristics of finishing beef cattle by Tricarico, J.M, Abney, M.D, Galyean, M.L, Rivera, J.D, Hanson, K.C, McLeod, K.R, Harmon, D.L

“…Three experiments were conducted to examine the effects of an Aspergillus oryzae extract containing α-amylase activity on performance and carcass…”
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Visceral tissue growth and proliferation during the bovine lactation cycle by Baldwin, R L, McLeod, K R, Capuco, A V

“…Twenty one multiparous, nonpregnant, lactating dairy cows were used to assess the impact of stage of lactation on visceral tissue mass and small intestinal…”
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Glucagon-like peptide-2 (GLP-2) increases net amino acid utilization by the portal-drained viscera of ruminating calves by Taylor-Edwards, C. C., Burrin, D. G., Kristensen, N. B., Holst, J. J., McLeod, K. R., Harmon, D. L.

“…Glucagon-like peptide-2 (GLP-2) increases small intestinal mass and blood flow in ruminant calves, but its impact on nutrient metabolism across the…”
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Effects of diet forage:concentrate ratio and metabolizable energy intake on isolated rumen epithelial cell metabolism in vitro by Baldwin, R. L., 6th, McLeod, K. R

“…Crossbred wether lambs were used to assess the effect of altered forage:concentrate ratio and metabolizable energy intake on metabolism of substrates by…”
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Relationships of a novel objective chute score and exit velocity with growth performance of receiving cattle by Bruno, K A, Vanzant, E S, Vanzant, K A, McLeod, K R

“…Animals with excitable temperaments often have decreased gains that have been associated with decreased intake and efficiency. Different temperament measures…”
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Influence of abomasal carbohydrates on subcutaneous, omental, and mesenteric adipose lipogenic and lipolytic rates in growing beef steers by Baldwin, R.L. VI, McLeod, K.R, McNamara, J.P, Elsasser, T.H, Baumann, R.G

“…To determine the response to alteration in site and form of carbohydrate delivery to the digestive tract, in vitro rates of lipogenesis and lipolysis in…”
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Direct-fed microbials containing lactate-producing bacteria influence ruminal fermentation but not lactate utilization in steers fed a high-concentrate diet by Kenney, N M, Vanzant, E S, Harmon, D L, McLeod, K R

“…Direct-fed microbials (DFM) have been shown to improve gain and growth efficiency and also modulate ruminal fermentation. In Exp. 1,72 beef steers were used to…”
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Influence of abomasal carbohydrates on small intestinal sodium-dependent glucose cotransporter activity and abundance in steers by Rodriguez, S.M, Guimaraes, K.C, Matthews, J.C, McLeod, K.R, Baldwin, R.L., VI, Harmon, D.L

“…Most animals adapt readily to increased supplies of carbohydrate in the intestinal lumen by increasing enzymes for degradation and increasing glucose…”
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Basal expression of nucleoside transporter mRNA differs among small intestinal epithelia of beef steers and is differentially altered by ruminal or abomasal infusion of starch hydrolysate by Liao, S F, Alman, M J, Vanzant, E S, Miles, E D, Harmon, D L, McLeod, K R, Boling, J A, Matthews, J C

“…In ruminants, microbial-derived nucleic acids are a major source of N and are absorbed as nucleosides by small intestinal epithelia. Although the biochemical…”
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