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Using A Modified In-Vitro Procedure To Measure Corn Bran Buoyancy, Crystal D. Buckner, Terry J. Klopfenstein, Galen E. Erickson, James C. Macdonald, Joshua R. Benton
Using A Modified In-Vitro Procedure To Measure Corn Bran Buoyancy, Crystal D. Buckner, Terry J. Klopfenstein, Galen E. Erickson, James C. Macdonald, Joshua R. Benton
Nebraska Beef Cattle Reports
An in vitro procedure was modified to estimate rumen buoyancy of corn bran and fiber types. Inoculum was obtained from two beef heifers and mixed with McDougall’s buffer then distributed to the in vitro tubes for 30 hours incubation at 100 °F. Fibrous material formed a matte layer which was measured to describe buoyancy. Tubes contained 6g of a feedlot-type diet with 7.5% fiber type (alfalfa hay, grass hay, corn silage, or corn stalks), with no replacement or 25% replacement of the remaining corn with corn bran. Buoyancy declined over time. Alfalfa hay had the most positive effect on buoyancy …
Vascular Endothelial Growth Factor Inhibitory Isoform Is Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Vascular Endothelial Growth Factor Inhibitory Isoform Is Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Nebraska Beef Cattle Reports
VEGF normally acts to stimulate vascular development (angiogenesis) and is necessary for ovulation of the dominant follicle. The inhibitory isoform blocks the actions of VEGF angiogenic isoforms; therefore, the objectives of the experiments were to identify the bovine inhibitory isoform, VEGF164b and to determine its expression prior to and after the LH surge. VEGF164b mRNA was upregulated prior to but did not change after the LH surge. Therefore, VEGF164b may be necessary for preparation of the dominant follicle prior to ovulation.
Statistics Used In The Nebraska Beef Report And Their Purpose
Statistics Used In The Nebraska Beef Report And Their Purpose
Nebraska Beef Cattle Reports
The purpose of beef cattle and beef product research at UNL is to provide reference information that represents the various populations (cows, calves, heifers, feeders, carcasses, retail products, etc.) of beef production. Obviously, the researcher cannot apply treatments to every member of a population; therefore, he or she must sample the population. The use of statistics allows the researcher and readers of the Nebraska Beef Report the opportunity to evaluate separation of random (chance) occurrences and real biological effects of a treatment. Following is a brief description of the major statistics used in the beef report. For a more detailed …
Nebraska 2007 Beef Cattle Report
Nebraska 2007 Beef Cattle Report
Nebraska Beef Cattle Reports
Table of Contents
Cow/Calf
Utilization of Dried Distillers Grains for Developing Beef Heifers
Progestin Concentrations Alter Follicle Characteristics and May Affect Quality of Oocytes (Eggs)
Growing
Summary Analysis of Grazing Yearling Response to Distillers Grains
Dried Distillers Grains Substitute for Forage and Nitrogen on Pasture: N Dynamics and Use Efficiency
Comparing a Modified Dry Byproduct to Dry Distillers Grains with Solubles in Growing Calf Diets
Effect of Distillers Grains Composition and Level on Steers Consuming High-Quality Forage
Replacement of Forage with Dried Distillers Grains Reduces Ruminal Methane Production
Dried Distillers Grains as Creep Feed for Yearling Beef Cattle Grazing Sandhill …
Dried Distillers Grains Substitute For Forage And Nitrogen On Pasture: N Dynamics And Use Efficiency, Matthew A. Greenquist, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Leonard Baleseng, Walter H. Schacht
Dried Distillers Grains Substitute For Forage And Nitrogen On Pasture: N Dynamics And Use Efficiency, Matthew A. Greenquist, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Leonard Baleseng, Walter H. Schacht
Nebraska Beef Cattle Reports
Animal performance and N dynamics of different grazing management and supplementation strategies in cattle production systems were evaluated on smooth bromegrass pastures in eastern Nebraska. Steers supplemented with dried distillers grains with solubles (DDGS) on non-fertilized smooth bromegrass pastures gained more (0.58 lb/d) than steers on fertilized and non-fertilized smooth bromegrass. Nitrogen retention per steer supplemented with DDGS was 38.5% greater than non supplemented steers on fertilized smooth bromegrass and non-supplemented steers on non-fertilized smooth bromegrass stocked at 69% of the rate on fertilized pastures. Fertilized and supplemented pastures were stocked at equal densities. Nitrogen use efficiency based on the …
Digestibility, Rumen Metabolism, And Site Of Digestion For Finishing Diets Containing Wet Distillers Grains Or Corn Oil, Kyle J. Vander Pol, Matt K. Luebbe, Grant Crawford, Galen E. Erickson, Terry J. Klopfenstein
Digestibility, Rumen Metabolism, And Site Of Digestion For Finishing Diets Containing Wet Distillers Grains Or Corn Oil, Kyle J. Vander Pol, Matt K. Luebbe, Grant Crawford, Galen E. Erickson, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Five ruminally and duodenally fistulated, Holstein steers were used in a 5X5 Latin square metabolism experiment to evaluate digestibility of wet distillers grains plus solubles (WDGS) compared with corn fiber and corn oil in finishing diets. Treatments were a 40% WDGS diet, a composite of corn fiber and corn protein (COMP), COMP plus corn oil to equal the distillers diet (COMP+OIL), and dry-rolled corn control diets without (CON) or with corn oil (CON+OIL). Cattle fed WDGS had numerically lower rumen pH compared with cattle fed other treatments. Cattle fed the WDGS had greater propionate, lower acetate:propionate ratios, greater total tract …
Environmental Factors Affecting Water Intake In Steers Finishing In Feedlots, Rodrigo A. Arias, Terry L. Mader
Environmental Factors Affecting Water Intake In Steers Finishing In Feedlots, Rodrigo A. Arias, Terry L. Mader
Nebraska Beef Cattle Reports
Simple and multiple regression analyses were executed using records of six experiments conducted from 1999 to 2006 at the University of Nebraska Northeast Research and Extension Center. The objective of the study was to obtain the best equation to predict water intake of feedlot steers under summer and winter weather conditions. The analysis permitted regression equations to be obtained for summer, winter and both seasons (overall model). From simple regression analysis, the best predictor of water intake was minimum temperature with r2= 0.61 in the overall model. Whereas, from multiple regression analysis the overall model with the best …
Effect Of Distillers Grains Composition And Level On Steers Consuming High-Quality Forage, Mark E. Corrigan, Galen E. Erickson, Terry J. Klopfenstein, Kyle J. Vander Pol, Matthew A. Greenquist, Matt K. Luebbe, Kip Karges, Matt L. Gibson
Effect Of Distillers Grains Composition And Level On Steers Consuming High-Quality Forage, Mark E. Corrigan, Galen E. Erickson, Terry J. Klopfenstein, Kyle J. Vander Pol, Matthew A. Greenquist, Matt K. Luebbe, Kip Karges, Matt L. Gibson
Nebraska Beef Cattle Reports
An experiment was conducted to determine the effects of dried distillers grains (DDG) supplementation level and composition on growing steer performance and forage intake. Factors included DDG supplementation level (0.25, 0.50, 0.75 or 1.00% of BW), and DDG solubles level (0, 5.4, 14.5, 19.1, or 22.1% DM). Final BW improved, and forage intake decreased with increasing levels of DDG. An interaction between DDG supplementation level and solubles level was observed on ADG and F:G and was likely related to supplemental fat levels. Supplementation of forages with DDG improves performance while decreasing forage intake when fat levels are not too great.
Effect Of Sorting And Feeding Optaflexx On Performance And Economics Of Long Yearling Steers, William A. Griffin, Terry J. Klopfenstein, Galen E. Erickson, Dillon M. Feuz, Kyle J. Vander Pol, Matthew A. Greenquist
Effect Of Sorting And Feeding Optaflexx On Performance And Economics Of Long Yearling Steers, William A. Griffin, Terry J. Klopfenstein, Galen E. Erickson, Dillon M. Feuz, Kyle J. Vander Pol, Matthew A. Greenquist
Nebraska Beef Cattle Reports
A two-year experiment evaluated the effects of sorting long yearling steers by initial feedlot BW and supplementing 200 mg/steer of Optaflexx daily the last 28 days of the feeding period on ADG, F/G, carcass characteristics and profitability. Feedlot ADG, F/G, and profitability were not effected by sorting. However, sorted cattle exhibited increased fat thickness, increased ribeye area, and increased percentage of carcasses with a yield grade of four or higher. Supplementing Optaflexx the last 28 days of the feeding period had no effect on feedlot performance, carcass characteristics, or profitability.
Off-Flavor Mitigation In Cow Steaks, Donald A. Moss, Chris R. Calkins
Off-Flavor Mitigation In Cow Steaks, Donald A. Moss, Chris R. Calkins
Nebraska Beef Cattle Reports
Strip loins from fed (high energy diet for at least 60 days) and nonfed cows were treated with 1% water a solution containing one of four commercial bitter blockers to determine if off-flavors could be blocked. Neither trained nor consumer taste panels detected differences among the bitter blockers. Trained panelists frequently found metallic, sour, rancid, bloody, salty, and bitter flavors, with nonfed cow beef having more bloody, bitter, and burnt off-flavors. Consumers most frequently identified bloody, metallic and liver-like off-flavors in cow beef, but found no differences in frequency of off-flavor notes between fed and nonfed cow beef. Commercial bitter …
Effects Of Aging On Beef Chuck And Round Muscles Enhanced With Ammonium Hydroxide And Salt, Adam E. Hamling, Chris R. Calkins
Effects Of Aging On Beef Chuck And Round Muscles Enhanced With Ammonium Hydroxide And Salt, Adam E. Hamling, Chris R. Calkins
Nebraska Beef Cattle Reports
This study was conducted to determine if aging alters the beneficial effects of enhancement with a 20% solution of water, ammonium hydroxide, and salt, on beef steaks. For all muscles (triceps brachii, biceps femoris, rectus femoris), steaks had lower shear force values when compared to non-pumped controls at every aging period (1, 7, 14 days). Also, enhanced steaks received more desirable evaluations for tenderness, juiciness, flavor, and overall acceptability at every aging period from consumer taste panels. These data indicate aging does not decrease the benefits of enhancement.
Ranking Beef Muscles For Warner-Bratzler Shear Force And Trained Sensory Panel Ratings, Gary A. Sullivan, Chris R. Calkins
Ranking Beef Muscles For Warner-Bratzler Shear Force And Trained Sensory Panel Ratings, Gary A. Sullivan, Chris R. Calkins
Nebraska Beef Cattle Reports
Combining 60 years of published research, 40 different beef muscles were ranked by Warner-Bratzler shear force. Relative ranks for tenderness, juiciness and beef flavor ratings were also determined. The psoas major and infraspinatus are the two most tender. Sensory tenderness ratings correlated to shear force means (-0.85; p=0.001) where a desirable tenderness rating reflected a low shear force. These data help reconcile differences among various studies of beef tenderness and provide a weighted ranking for beef muscles, which will be useful when selecting muscles for value-added beef products.
Diurnal And Dietary Impacts On Purine Derivative Excretion From Spot Samples Of Urine, Grant I. Crawford, Kyle Vander Pol, James C. Macdonald, Galen E. Erickson, Terry J. Klopfenstein
Diurnal And Dietary Impacts On Purine Derivative Excretion From Spot Samples Of Urine, Grant I. Crawford, Kyle Vander Pol, James C. Macdonald, Galen E. Erickson, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
An individual feeding experiment was conducted to estimate diurnal and dietary impacts on microbial CP (MCP) production estimated from urinary purine derivative (PD) and creatinine excretion. Heifers were fed one of three diets formulated to produce differences in MCP production: an 85% steam-flaked corn-based diet (SFC); the SFC diet with 1.5% urea (UREA); or a corn milling byproduct-based diet (BYPROD). Spot samples of urine were collected at 0700 and 1700 hours. No urine collection time x dietary treatment interactions were present for any variable. Dry matter intake, ADG, and F:G were poorest with the SFC treatment. Urinary PD:creatinine (PD:C) ratio …
Chronic Exposure Of Ruminal Fluid Cultures To Treatments That Inhibit Methanogenesis, Eric J. Behlke, James M. Takacs, Stephen W. Ragsdale, Clayton Mcneff, Peter Newsome, Jess L. Miner
Chronic Exposure Of Ruminal Fluid Cultures To Treatments That Inhibit Methanogenesis, Eric J. Behlke, James M. Takacs, Stephen W. Ragsdale, Clayton Mcneff, Peter Newsome, Jess L. Miner
Nebraska Beef Cattle Reports
Methanogenesis in ruminal cultures was inhibited by Yucca shidigera, 2-bromoethanesulfonate, and a nitrofuranyl para-aminobenzoic acid derivative. Only the nitrofuranyl para-aminobenzoic acid derivative remained effective beyond 10 days of culture indicating that this may be an effective treatment for chronically inhibiting methane production in cattle.
Inhibition Of Vascular Endothelial Growth Factor Manipulates Follicles In Beef Females, Robert A. Cushman, Debra T. Clopton, Mark F. Allan, S. E. Echternkamp, Andrea S. Cupp
Inhibition Of Vascular Endothelial Growth Factor Manipulates Follicles In Beef Females, Robert A. Cushman, Debra T. Clopton, Mark F. Allan, S. E. Echternkamp, Andrea S. Cupp
Nebraska Beef Cattle Reports
Vascular Endothelial Growth Factor (VEGF) is produced by cells surrounding the egg in the follicle. If VEGF is inhibited, ovulation does not occur. Understanding how VEGF regulates follicle development may allow for manipulation of estrous cycles. In previous studies in our laboratory, blocking the actions of VEGF decreased activation of early stage follicles in neonatal rat ovary cultures. Therefore, we hypothesized inhibition of VEGF actions would also inhibit follicle activation in bovine ovarian cortical cultures. Inhibition of VEGF did inhibit follicle progression, thus regulation of VEGF may be a way to manipulate follicle development and more accurately time ovulation.
Effects Of Supplementing Beef Cows With Lipid From Whole Corn Germ, Jeremy Martin, Richard J. Rasby, Dennis R. Brink, Ron Lindquist, Duane Keisler, Stephen D. Kachman, Mark Dragastin
Effects Of Supplementing Beef Cows With Lipid From Whole Corn Germ, Jeremy Martin, Richard J. Rasby, Dennis R. Brink, Ron Lindquist, Duane Keisler, Stephen D. Kachman, Mark Dragastin
Nebraska Beef Cattle Reports
A two-year study was conducted with crossbred beef cows to determine whether supplementation with fat from whole corn germ either pre- or postpartum influenced ovarian activity before the breeding season, pregnancy rates, calving interval, calf performance, or serum leptin concentration. Supplements were fed for approximately 45 days before or 45 days after calving. Cows supplemented prepartum with fat from whole corn germ had shorter calving intervals. Ovarian activity before the breeding season, pregnancy rate, calf growth, and serum leptin were not different between groups.
Effects Of Optaflexx Fed In Combination With Mga On Feedlot Heifer Performance, William A. Grififn, Galen E. Erickson, Bill Dicke, Robert J. Cooper, D. J. Jordon, William Moseley, Gary Sides, Jim S. Drouillard, Terry J. Klopfenstein
Effects Of Optaflexx Fed In Combination With Mga On Feedlot Heifer Performance, William A. Grififn, Galen E. Erickson, Bill Dicke, Robert J. Cooper, D. J. Jordon, William Moseley, Gary Sides, Jim S. Drouillard, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A commercial feedlot experiment was conducted using 1,807 heifers to evaluate the effects of Optaflexx fed in combination with MGA on finishing heifer performance. In heifers receiving MGA throughout the entire 126-143 day feeding period, feeding Optaflexx for the last 31-38 days increased ADG and hot carcass weight compared to heifers fed MGA but not Optaflexx. Heifers fed MGA and Optaflexx had increased DMI, improved feed efficiency and increased final live weight. Carcass quality measurements were not influenced by treatment.
Frontmatter And Contents
Nebraska Beef Cattle Reports
ACKNOWLEDGMENTS
Appreciation is expressed to the following firms, associations, or agencies who provided grant support for research in the beef cattle program.
Abengoa Bionergy Corp., York, Nebraska
Beef Board, Centennial, Colorado
Bioniche Lifes Services, Belleville, Ontario, Canada
Cargill Corn Milling, Blair, Nebraska
Elanco Animal Health, Indianapolis, Indiana
Intervet, Millsboro, Delaware
J.C. Robinson Seed Co., Waterloo, Nebraska
Montana State University, Boseman, Montana
Nebraska Cattlemen, Inc., Lincoln, Nebraska
Nebraska Corn Board, Lincoln, Nebraska
Nutrition Physiology Corp., Amarillo, Texas
Pfizer Inc., New York, New York
Soypass Royalty Funds, University of Nebraska, Lincoln, Nebraska
Appreciation is also expressed to the following firms who provided …
Effects Of Supplementing Lactating, June-Calving Cows On Second-Calf Pregnancy Rates, Aaron Stalker, Kelly Creighton, Jacqueline A. Musgrave, Don C. Adams, Terry J. Klopfenstein
Effects Of Supplementing Lactating, June-Calving Cows On Second-Calf Pregnancy Rates, Aaron Stalker, Kelly Creighton, Jacqueline A. Musgrave, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A two year experiment evaluated the influence of supplementation pre-breeding on second-calf pregnancy rates in June-calving heifers. For 60 days before start of the breeding season, heifers were assigned to one of two treatments: supplementation of dried distillers grains (1.5 lb/day) to meet energy and metabolizable protein requirements or unsupplemented control. Supplementation improved body condition score during the supplementation period and resulted in increased body condition score at weaning. In year 1, feeding supplement to the dam did not change calf weight gain but feeding supplement increased calf weight in year 2. Pregnancy rates were 90% and not changed by …
Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Richard N. Funston, Terry J. Klopfenstein
Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Richard N. Funston, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Crossbred, spring calving cows were used in a three-year experiment to evaluate the influence of supplemental protein prepartum and grazing sub-irrigated meadow postpartum on pregnancy rates and calf feedlot performance. Feeding supplement prepartum improved body condition score pre-calving and pre-breeding and increased the percentage of live calves at weaning but did not affect pregnancy rate or steer calf feedlot performance. Grazing sub-irrigated meadow did not change pregnancy rates or feedlot performance.
Effects Of Dam Nutrition On Growth And Reproductive Performance Of Heifer Calves, Jeremy Martin, Kim Vonnahme, Greg Lardy, Don C. Adams, Richard N. Funston
Effects Of Dam Nutrition On Growth And Reproductive Performance Of Heifer Calves, Jeremy Martin, Kim Vonnahme, Greg Lardy, Don C. Adams, Richard N. Funston
Nebraska Beef Cattle Reports
A 3-year experiment evaluated the effects of maternal nutrition on growth and reproductive performance of heifer calves. Supplementing cows with protein during late gestation resulted in heifers that were heavier at weaning and breeding, had higher pregnancy rates, and calved earlier. Allowing cows to graze meadows after calving improved calf weaning weight but not heifer reproductive performance. Heifers from cows that were fed hay after calving had reduced DMI and improved residual feed intake if their dams were supplemented with protein during gestation, but ADG and G:F were not affected by dam supplementation or spring feeding strategies.
Vascular Endothelial Growth Factor Mrna Isoforms 120 And 164 Are Differentially Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Rebecca C. Bott, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Vascular Endothelial Growth Factor Mrna Isoforms 120 And 164 Are Differentially Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Rebecca C. Bott, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Nebraska Beef Cattle Reports
Vascular Endothelial Growth Factor (VEGF) is produced by cells surrounding the egg in the follicle prior to ovulation. If VEGF is inhibited, ovulation does not occur. The VEGF gene can be spliced to produce different protein isoforms which have specific functions. Our objective was to determine if VEGF 120 and 164 mRNA isoforms are differentially regulated in the preovulatory follicle. From our studies, VEGF isoforms are differentially regulated during both CL regression and after a simulated LH surge. Differences observed in VEGF isoform regulation may allow for manipulation of ovulation in the beef cow.
Bull Exposure, When Combined With A Seven-Day Mga Synchronization, Does Not Enhance Conception Rates In Cows, Michelle M. Baltes, Rebecca C. Bott, Ryann Mcfee, Joseph S. Schulz, Candice F. Toombs, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Bull Exposure, When Combined With A Seven-Day Mga Synchronization, Does Not Enhance Conception Rates In Cows, Michelle M. Baltes, Rebecca C. Bott, Ryann Mcfee, Joseph S. Schulz, Candice F. Toombs, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Nebraska Beef Cattle Reports
The purpose of the current experiments was to determine if cows exposed to sterile bulls (epididyectomized) in combination with a 7-day MGA treatment would have an advantage in conception rates to cows not exposed to bulls. Bull exposure increased percentage of cows cycling prior to synchronization and reduced the time from calving to initiation of cycling. Overall there was not an increase in conception rates to timed TAI or in total pregnancy rates in bull exposed MGA treated cows when compared to cows not exposed to bulls.
Effect Of Fat And Undegradable Intake Protein In Dried Distillers Grains On Performance Of Cattle Grazing Smooth Bromegrass Pastures, James C. Macdonald, Galen E. Erickson, Terry J. Klopfenstein
Effect Of Fat And Undegradable Intake Protein In Dried Distillers Grains On Performance Of Cattle Grazing Smooth Bromegrass Pastures, James C. Macdonald, Galen E. Erickson, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Growing heifers grazing smooth bromegrass pastures were supplemented daily with dry distillers grains, corn bran + corn oil, or corn bran + corn gluten meal to determine the relative contributions of fat and undegradable intake protein in dried distillers grains to animal performance. For cattle supplemented from 0 to 0.75% body weight with dried distillers grains, ADG was improved by 0.14 lb for every 0.10% BW increase in dried distillers grains supplementation. Cattle supplemented with corn bran + corn gluten meal gained 38% as much as cattle supplemented with dry distillers grains while cattle supplemented with corn bran + corn …
Influence Of Dried Distillers Grains Supplementation Frequency On Forage Digestibility And Growth Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
Influence Of Dried Distillers Grains Supplementation Frequency On Forage Digestibility And Growth Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Two experiments evaluated the influence of dried distillers grains supplementation frequency on forage digestibility and growth of yearling steers. In Exp. 1, treatments were dried distillers grains fed at 16.7% of the diet either daily, every other day or every third day. Diet DM, OM and NDF digestibility decreased linearly as dried distillers grains supplementation occurred less frequently. In Exp. 2, 48 crossbred steers were used in a two-year study to compare corn/soybean meal with dried distillers grains as winter supplements. Steers performed similarly when supplements were fed 6 days/week but performance was decreased when dried distillers grains was fed …
Dried Distillers Grains Supplementation Of Calves Grazing Corn Residue, Kristin H. Gustad, Terry J. Klopfenstein, Galen E. Erickson, Kyle J. Vander Pol, James C. Macdonald, Matthew A. Greenquist
Dried Distillers Grains Supplementation Of Calves Grazing Corn Residue, Kristin H. Gustad, Terry J. Klopfenstein, Galen E. Erickson, Kyle J. Vander Pol, James C. Macdonald, Matthew A. Greenquist
Nebraska Beef Cattle Reports
Dried distillers grains (DDGS) were fed to weanling steer calves grazing nonirrigated corn residue to determine daily gain response and residue intake response to increasing levels of DDGS (from 1.5 to 6.5 lb/day in 1 lb increments). The DDGS was fed individually using Calan electronic gates. Daily gain increased from 0.9 (1.5 lb DDGS) to 1.8 (6.5 lb DDGS) lb/day . Forage intake decreased from 11.3 (1.5 lb DDGS) to 8.3 (6.5 lb DDGS) lb/day . Results provide information for selecting a DDGS supplementation level to achieve a target gain.
Effect Of Corn Hybrid And Processing Method On Site And Extent Of Nutrient Digestibility Using The Mobile Bag Technique, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Effect Of Corn Hybrid And Processing Method On Site And Extent Of Nutrient Digestibility Using The Mobile Bag Technique, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Nebraska Beef Cattle Reports
The influence of corn hybrid and processing method onsite and extent of DM, starch, and protein digestibility was determined using the mobile bag technique. Samples consisted of three hybrids with known digestibility and feeding value processed as either dryrolled corn (DRC) or high-moisture corn (HMC). Ruminal and total tract nutrient digestibilities were greater for HMC compared to DRC. Differences among hybrids existed for all variables measured except ruminal starch digestibility and degradable intake protein. Undegradable intake protein (UIP) digestibility was greater for HMC compared to DRC (77.8 and 73.7%, respectively). However, UIP was lower for HMC than DRC. Differences among …
Influence Of Corn Hybrid And Processing Method On Digestibility And Ruminal Fermentation, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Influence Of Corn Hybrid And Processing Method On Digestibility And Ruminal Fermentation, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Nebraska Beef Cattle Reports
Three hybrids with different kernel traits and feeding value were selected from a previous study to determine effects of corn hybrid and processing method (high-moisture corn (HMC), or dry-rolled corn DRC)) on nutrient digestibility and ruminal fermentation. DMI, intake rate, and total time spent eating were greater for HMC than DRC. Changes in ruminal pH and pH variance were also greater for HMC compared to DRC. Total-tract nutrient digestibility was influenced by processing method and hybrid. Nutrient digestibilities were greatest for hybrid 1, and greater for HMC compared to DRC. There was a hybrid by processing method interaction for molar …
Influence Of Corn Hybrid On Kernel Traits, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Lenis Alton Nelson, David S. Jackson
Influence Of Corn Hybrid On Kernel Traits, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Lenis Alton Nelson, David S. Jackson
Nebraska Beef Cattle Reports
Sixty commercially available corn hybrids were used to identify kernel traits that may be used as an indicator of feeding value to cattle. Three separate tests were conducted and 12 traits were evaluated for each hybrid. Most production traits were negatively correlated or not correlated to physical traits making them less indicative of cattle performance compared to some lab techniques. Based on the dry matter disappearance in the rumen, a harder kernel will be more efficiently digested. An approximately 10% change in dry matter disappearance is shown between the most and least digestible hybrid. Physical kernel traits can be helpful …
Influence Of Corn Hybrid, Kernel Traits, And Dry Rolling Or Steam Flaking On Digestibility, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Wayne A. Fithian, Patrick M. Clark, David S. Jackson
Influence Of Corn Hybrid, Kernel Traits, And Dry Rolling Or Steam Flaking On Digestibility, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Wayne A. Fithian, Patrick M. Clark, David S. Jackson
Nebraska Beef Cattle Reports
Seventy-two commercially available corn hybrids were used to quantify the existing range in kernel characteristics shown to correlate with improved feeding value to cattle. Twelve hybrids were steam flaked at two different bulk densities. Hybrids were tested for kernel size, hardness, in situ digestibility, and starch use. For dry rolled corn, a 27% difference in dry matter disappearance was found across hybrids. For flaking, a 6% to 29% improvement over dry rolled corn was observed. An 8% to 36% advantage for flaking in starch digestibility was also found. The results of this trial suggest there can be an interaction between …