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Microbial use of recycled urea is dependent on the level and frequency of degradable intake protein supplementation

. Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 License. Authors T.A. Wickersham, R.C. Cochran, E.E. Wickersham, E.S. Moore, and Evan C. Titgemeyer This Research

Increasing protein supply to pregnant beef cows when energy is limited does not improve cow or calf performance

This work is licensed under a Creative Commons Attribution 4.0 License. Authors E.A. Bailey, Evan C. Titgemeyer, R.C. Cochran, Timothy J. Jones, and K. C. Olson This Research Report article is

Effects of corn processing and wet corn gluten feed on newly received and growing cattle

licensed under a Creative Commons Attribution 4.0 License. Authors A.V. Siverson, Brandon E. Oleen, Evan C. Titgemeyer, Sean P. Montgomery, and Dale A. Blasi This Research Report article is available in

Response of heifers fed Optaflexx™ to supplemental protein

Commons License This work is licensed under a Creative Commons Attribution 4.0 License. Authors D.K. Walker, E.R. Loe, A.S. Webb, Evan C. Titgemeyer, James S. Drouillard, and Brandon E. Depenbusch This

Effects of chromium propionate and supplemental amino acids on dairy cattle performance near peak lactation

Feeding chromium in early lactation can increase milk production, but responses during peak lactation have not been studied. The objective of this study was to evaluate responses to chromium propionate during this period as well as interactions with rumen-protected lysine and methionine. Chromium propionate increased feed intake and tended to increase energy-corrected milk yield...

Zilpaterol-HCl reduces urinary excretion of N-tau-methylhistidine by finishing steers

Zilpaterol-HCl is an orally active b-adrenergic agonist that repartitions nutrient use in cattle and has been approved for use during the final 20 to 40 days of the finishing period. Zilpaterol administration to finishing cattle increases average daily gain, feed efficiency, hot carcass weight, ribeye area, and dressing percentage; however, zilpaterol decreases meat tenderness...

Effect of nitrogen supplementation and Zilpaterol-HCl on urea recycling in steers consuming corn-based diets

Cattle have the innate ability to recycle nitrogen absorbed post-ruminally back to the rumen as endogenously synthesized urea. Urea returning to the rumen provides an additional opportunity for ruminal microbes to benefit from nitrogen absorbed postruminally. Urea recycling may provide a significant benefit to cattle when protein requirements of ruminal microbes are high or when...

Evaluation of methionine availability to dairy cows when added to mechanically extracted soybean meal with soy gums

Twenty-five Holstein cows were fed 5 different diets to evaluate amounts of metabolizable methionine provided to dairy cows from a mechanically extracted soybean meal (meSBM) with methionine added during manufacture. The control diet was designed to be deficient in metabolizable methionine supply. Two amounts of methionine were added from either a commercially available ruminally...

Dietary molasses increases ruminal pH and enhances ruminal biohydrogenation during milk fat depression

Molasses has long been used in animal feeds for palatability and as a binding agent to ensure uniform consumption of essential nutrients. Recent work with molasses in highly fermentable diets has revealed that molasses might offer additional benefits in dairy rations. Feeding highconcentrate diets increases the risk of milk fat depression by disrupting the normal pathway of fatty...

Effects of feeding increased amounts of wet corn gluten feed on dairy cow metabolism and milk production

An experiment was conducted to evaluate the effects of feeding increasing dietary amounts of wet corn gluten feed (WCGF). Eight lactating Holstein cows were housed in a tie-stall facility and fed 1 of 4 diets containing 0, 11, 23, or 34% WCGF on a dry matter basis. To maintain similar nutrient concentrations, alfalfa hay, corn silage, corn grain, soybean meal, expeller soybean...

Bioavailability of lysine from hydroxymethyl lysine

Twelve mature sheep were used as a ruminant model to estimate the bioavailability of lysine in hydroxymethyl lysine (HML) compared with a commercial product of rumen-protected lysine (RPL; LysiPEARL, Kemin Industries, Inc.) with known availability. The sheep were fed a diet with a forage to concentrate ratio similar to that of dairy diets. Following a control period in which...

Effect of nitrogen supplementation on urea recycling in steers consuming corn-based diets

Nitrogen absorbed in the small intestine of cattle can be recycled to the rumen and incorporated into microbially synthesized amino acids. This is an advantage when dietary protein is low or when ruminally available nitrogen is limited by poor ruminal protein degradation. In a survey, consulting feedlot nutritionists reported that 83% of their clients used ethanol coproducts in...

Dietary molasses enhances ruminal biohydrogenation and partially alleviates diet- induced milk fat depression

Milk fat depression remains a problem on dairy farms, and in recent years, incorporation of distillers grains (typically with solubles added and often dried) has contributed to this problem on some farms. In this study, we evaluated whether molasses could prevent milk fat depression in cows fed a high-risk diet. Replacing up to 5% of dietary corn with cane molasses linearly...

Energy supply affects leucine utilization by growing steers

Energ y supply afec ts leucine utilization by growing steers G.F. Schroeder E.S. Moore Evan C. Titgemeyer Follow this and additional works at: http://newprairiepress.org/kaesrr Part of the Other

Urea recycling in beef cattle fed prairie hay- based diets

Commons License This work is licensed under a Creative Commons Attribution 4.0 License. Authors E.A. Bailey, D.W. Brake, David E. Anderson, M.L. Jones, Evan C. Titgemeyer, and K. C. Olson This Research

Effects of supplemental protein and energy on digestion and urea kinetics in beef cattle

License. Authors E.A. Bailey, D.W. Brake, David E. Anderson, M.L. Jones, Evan C. Titgemeyer, and K. C. Olson This Research Report article is available in Kansas Agricultural Experiment Station Research

Supplementation with undegradable intake protein increases utilization of low-quality forage and microbial use of recycled urea

. Titgemeyer 0 0 Keywords Cattlemen's Day, 2007; Kansas Agricultural Experiment Station contribution; no. 07-179-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative

Supplementation with degradable intake protein increases low-quality forage utilization and microbial use of recycled urea

. Wickersham, D.P. Gnad, and Evan C. Titgemeyer This Research Report article is available in Kansas Agricultural Experiment Station Research Reports: https://newprairiepress.org/ kaesrr/vol0/iss1/158

In vitro evaluation of fibrolytic enzymes to increase digestion of fibrous feedstuffs

Fermentations were conducted to identify enzyme activities and amounts that would optimize digestion of high-fiber feed ingredients (soybean hulls, alfalfa, corn silage, and corn gluten feed). In general, adding enzymes increased in vitro dry matter disappearance, but total volatile fatty acid concentrations were not improved by enzyme treatments. The response to enzymes was...