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Full-Text Articles in Animal Sciences
Implant Programs For Feedlot Heifers Using Synovex® Plus™, Casey Macken, Todd Milton, Bill Dicke, Dave Mcclellan, Frank Prouty
Implant Programs For Feedlot Heifers Using Synovex® Plus™, Casey Macken, Todd Milton, Bill Dicke, Dave Mcclellan, Frank Prouty
Nebraska Beef Cattle Reports
Two commercial feedyard experiments evaluated implant strategies for feedlot heifers. In both experiments, implanting heifers with Synovex Plus increased ADG compared to heifers implanted with Finaplix-H and fed MGA. In Experiment 1, implanting heifers with Synovex Plus improved feed conversion and increased live basis net returns, and the use of MGA with Synovex Plus increased carcass merit basis net returns and had similar marbling scores compared with Finaplix-H and MGA.
Changes To The Purine Assay Improve Purine Recovery And Assay Precision, Ryan Mass, Kelly Creighton, Terry J. Klopfenstein
Changes To The Purine Assay Improve Purine Recovery And Assay Precision, Ryan Mass, Kelly Creighton, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Three experiments tested modifications of the purine assay designed to improve estimation of microbial crude protein supply. In Experiment 1, changing hydrolysis conditions from 12 normal perchloric acid to 2 normal increased purine recovery and lowered the coefficient of variation. In Experiment 2, phosphate buffer yielded greater recovery of purines than acetate buffer and using the extraction solution as a wash was less variable than silver nitrate in .005 molar hydrochloric acid. In Experiment 3, purine nitrogen:total microbial nitrogen ratios for five forages were determined by incubating NDF in situ and analyzing them before and after neutral detergent extraction.
Dietary Conjugated Linoleic Acids (Cla) And Body Fat Changes, Jess L. Miner, Chris Cederberg, Merlyn K. Nielsen, Xiaoli Chen, Clifton Baile
Dietary Conjugated Linoleic Acids (Cla) And Body Fat Changes, Jess L. Miner, Chris Cederberg, Merlyn K. Nielsen, Xiaoli Chen, Clifton Baile
Nebraska Beef Cattle Reports
A mixture of CLA isomers was fed to mice at 0, 1, and 2% of the diet for 5, 12, or 14 days. Dietary CLA caused a reduction of body fat approaching 50% but did not cause a loss of total body weight. Mice fed CLA also experienced programmed cell death (apoptosis) of fat cells. Certain (not all) CLA isomers are natural components of beef and dairy products but not other foods. Therefore, these observations prompt speculation of an additional health benefit, reduced adiposity — to humans that eat ruminant-derived foods.
The Effect Of Feeding Pressed Sugar Beet Pulp In Beef Cattle Feedlot Finishing Diets, Jessica Park, Ivan G. Rush, Burt Weichenthal, Todd Milton
The Effect Of Feeding Pressed Sugar Beet Pulp In Beef Cattle Feedlot Finishing Diets, Jessica Park, Ivan G. Rush, Burt Weichenthal, Todd Milton
Nebraska Beef Cattle Reports
When the two trials were analyzed together, average daily gain was higher in the corn silage treatment compared to the two levels of beet pulp. However, feed to gain conversions between the treatments were not different. Beet pulp can serve as a substitute for corn silage and even though dry matter intake may be slightly affected, feed efficiency will be equal.
Forage Intake And Nutrient Balance Of Heifers Grazing Sandhills Winter Range, Trey Patterson, Don C. Adams, Terry J. Klopfenstein
Forage Intake And Nutrient Balance Of Heifers Grazing Sandhills Winter Range, Trey Patterson, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Two experiments with pregnant heifers grazing winter range investigated effects of supplementation to meet metabolizable protein versus CP requirements. Supplements were fed from October to February, and hay was fed in January and February of the second experiment. Supplementation to meet metabolizable protein requirements decreased weight loss in one experiment. Winter hay feeding reduced weight loss and body condition loss compared to no hay feeding. Forage intake declined from 2.1% of body weight in November to 1.3% in February. Metabolizable protein was deficient when animals were supplemented to meet CP requirements. Supplementation to meet metabolizable protein requirements may improve performance …
Undegradable Intake Protein Content Of Corn Steep Compared To Soybean Meal, Trey Patterson, Terry J. Klopfenstein, D. J. Jordon, Casey Wilson, Ryan Mass, Rick Stock
Undegradable Intake Protein Content Of Corn Steep Compared To Soybean Meal, Trey Patterson, Terry J. Klopfenstein, D. J. Jordon, Casey Wilson, Ryan Mass, Rick Stock
Nebraska Beef Cattle Reports
Thirty calves were used in an 84-day growth trial to evaluate protein efficiency of corn steep compared to soybean meal. Calves were individually fed a base diet supplemented with either 1) urea, 2) soybean meal, or 3) corn steep. Soybean meal and corn steep were fed at graded levels replacing urea. In vitro ammonia release analyses showed the protein in both corn steep and soybean meal to be approximately 30% undegradable in the rumen. Calves fed corn steep had similar protein efficiency to calves fed soybean meal, supporting the in vitro data.
Performance And Economics Of Winter Supplementing Pregnant Heifers Based On The Metabolizable Protein System, Trey Patterson, Don C. Adams, Terry J. Klopfenstein, Richard T. Clark, Burke Teichert
Performance And Economics Of Winter Supplementing Pregnant Heifers Based On The Metabolizable Protein System, Trey Patterson, Don C. Adams, Terry J. Klopfenstein, Richard T. Clark, Burke Teichert
Nebraska Beef Cattle Reports
In 1997-1998 and 1998-99, pregnant, March-calving heifers (2,375 head) at two locations of a ranch in Nebraska were used to evaluate the production and economic responses of winter supplementation (September to February) to meet metabolizable protein or CP requirements. Net present value was used to determine the economic benefits of supplement treatments. In 1997-98, metabolizable protein heifers had higher pregnancy rates and expected profitability than CP heifers at one of two locations. In 1998-99, metabolizable protein heifers had higher pregnancy rates and expected profitability at both locations.
A Diagnostic Strategy To Classify Pens Of Feedlot Cattle By The Prevalence Of Escherichia Coli O157:H7 Fecal Shedding, David R. Smith, Spring Younts, Mark Blackford, Todd Milton, Rodney A. Moxley, Jeff Gray, Laura Hungerford, Terry J. Klopfenstein
A Diagnostic Strategy To Classify Pens Of Feedlot Cattle By The Prevalence Of Escherichia Coli O157:H7 Fecal Shedding, David R. Smith, Spring Younts, Mark Blackford, Todd Milton, Rodney A. Moxley, Jeff Gray, Laura Hungerford, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
This study evaluated two pen testing strategies to predict the percentage of cattle in a pen shedding detectable E. coli O157:H7. Culture of a composite fecal sample most accurately detected pens with 37% or more cattle shedding E. coli O157:H7 in feces. A new pen test device most accurately detected pens with 16% or more individuals shedding. The likelihood of detecting E. coli O157:H7 with either method increased as pen prevalence increased. If both pen-level test methods were used together, pens could be classified as high, medium or low prevalence with less labor and expense than testing individual cattle.
The Relationship Of The Characteristics Of Feedlot Pens To The Percentage Of Cattle Shedding Escherichia Coli O157:H7 Within The Pen, David R. Smith, Mark Blackford, Spring Younts, Rodney A. Moxley, Jeff Gray, Laura Hungerford, Todd Milton, Terry J. Klopfenstein
The Relationship Of The Characteristics Of Feedlot Pens To The Percentage Of Cattle Shedding Escherichia Coli O157:H7 Within The Pen, David R. Smith, Mark Blackford, Spring Younts, Rodney A. Moxley, Jeff Gray, Laura Hungerford, Todd Milton, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
This study was designed to discover relationships between characteristics of feedlot pens and the percentage of cattle shedding Escherichia coli O157:H7. Twenty-nine pens from five Midwestern feedlots were each sampled once between June and September, 1999. Feces were collected from all cattle in each pen. E. coli O157:H7 was isolated from the feces of 714 of 3162 cattle tested (23%), including at least one animal from each of the 29 pens. Pen prevalence did not differ between feedyards, but did vary widely within feedyards. Muddy pens were more likely to have a higher pen prevalence than normal pens.
A Comparison Of Beef Cattle Crossbreeding Systems Assuming Value-Based Marketing, U. Jon Tomsen, D. Kirk Darnell, Merlyn K. Nielsen
A Comparison Of Beef Cattle Crossbreeding Systems Assuming Value-Based Marketing, U. Jon Tomsen, D. Kirk Darnell, Merlyn K. Nielsen
Nebraska Beef Cattle Reports
This study simulated total life-cycle expenses and income under value-based marketing to arrive at predicted net returns for crossbreeding systems. The simulation used a deterministic model of totally contained beef breeding systems and evaluated 14 breeds and their crosses from biological data collected at the U.S. Meat Animal Research Center in Nebraska. Comparing beef cattle crossbreeding systems under value-based marketing will aid us in understanding the interactions of the total system. Besides value of carcasses, feed requirements, level of milk production and other characteristics are important in determining net returns.
Fiber Type Composition Of The Beef Chuck And Round, Kevin Kirchofer, Chris R. Calkins
Fiber Type Composition Of The Beef Chuck And Round, Kevin Kirchofer, Chris R. Calkins
Nebraska Beef Cattle Reports
The fiber type composition of 38 muscles of the beef chuck and round was studied to facilitate optimal muscle use in value-added products. Select grade chucks and rounds (n=4 each) were used. Muscles containing greater than 40% &#;-red fiber numbers were classified as red; greater than 40%&#;&#;&#;-white were classified as white. All others were classified as intermediate. Nine of 12 round muscles were white, while chuck muscles were equally dispersed between red (10 of 26), intermediate (9 of 26), and white (7 of 26), indicating variation among muscles of the chuck, which may create differences in processing characteristics.
Utilization Of Bt Corn Hybrids In Growing Beef Steers, Jeffrey Folmer, Galen E. Erickson, D. J. Jordan, Todd Milton, Terry J. Klopfenstein
Utilization Of Bt Corn Hybrids In Growing Beef Steers, Jeffrey Folmer, Galen E. Erickson, D. J. Jordan, Todd Milton, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Two trials were completed to evaluate the efficacy of Bt corn hybrids for growing steers. After grain harvest, trial 1 used two fields of N7333 Bt and nonBt corn to evaluate grazing performance and preference of growing steers. Trial 2 compared early and late maturing varieties (N4242 and N7333, respectively) of Bt and nonBt corn hybrids in corn silage-based growing diets. No differences in performance or grazing preference were observed between N7333 Bt or nonBt residue. Steers fed corn silage from hybrids N4242 gained 11% faster (P>.01) and were 7% more efficient (P>.01) than those fed N7333 hybrids. …
Summer Grazing And Fall Grazing Pressure Effects On Protein Content And Digestibility Of Fall Range Diets, Trey Patterson, Terry J. Klopfenstein, Don C. Adams, Walter H. Schacht, Patrick E. Reece, Jacqueline A. Musgrave, Amy Herron
Summer Grazing And Fall Grazing Pressure Effects On Protein Content And Digestibility Of Fall Range Diets, Trey Patterson, Terry J. Klopfenstein, Don C. Adams, Walter H. Schacht, Patrick E. Reece, Jacqueline A. Musgrave, Amy Herron
Nebraska Beef Cattle Reports
In 1997 and in 1998, four blocks of Sandhills range were used to examine summer grazing time and fall grazing pressure effects on fall diet quality. Three pastures within each block were grazed in June, July, or deferred from summer grazing each year. Multiple grazing pressures were created by grazing cows at various stocking rates in the fall. Diets were collected by esophageally fistulated cows. In 1997, diet protein and digestibility declined with increasing grazing pressure. In 1998, there were no effects of grazing pressure on fall diet protein or digestibility. July grazing reduced fall diet protein compared to June …
Evaluation Of 1996 Beef Cattle Nrc Model And Development Of Net Energy Modifiers, Hushton Block, Trey Patterson, Terry J. Klopfenstein, John Moore
Evaluation Of 1996 Beef Cattle Nrc Model And Development Of Net Energy Modifiers, Hushton Block, Trey Patterson, Terry J. Klopfenstein, John Moore
Nebraska Beef Cattle Reports
Data from 325 treatment means in 35 previous beef cattle feeding studies were used to evaluate the 1996 NRC model for accuracy of gain predictions and to develop predictions of net energy adjusters for use with the model. The model was found to inaccurately predict gain of cattle fed diets varying in ingredients and energy density. Net energy adjusters were used to achieve accurate prediction of gain for each observation and then equations were developed for predicting the level of net energy adjustment required to improve accuracy of gain prediction.
Effect Of Corn Processing On Degradable Intake Protein Requirement Of Finishing Cattle, Rob Cooper, Terry J. Klopfenstein, Doug Jordan, Todd Milton
Effect Of Corn Processing On Degradable Intake Protein Requirement Of Finishing Cattle, Rob Cooper, Terry J. Klopfenstein, Doug Jordan, Todd Milton
Nebraska Beef Cattle Reports
Three finishing trials were conducted to determine effect of corn processing on degradable intake protein requirement of feedlot cattle. Finishing diets consisted of 82% processed corn which was either dry rolled, high moisture, or steam flaked. Degradable intake protein levels were achieved by adding 0 to 2.0% urea (DM basis) to the control diets. Estimates of degradable intake protein requirement for a dry-rolled corn-based diet were approximately 6.3% of dietary DM. Degradable intake protein requirement for high-moisture corn-based diets was approximately 10% of dietary DM. Degradable intake protein requirement for steam-flaked corn-based diet was between 7 and 9.5% of dietary …
Economic Evaluation Of Corn Processing For Finishing Cattle, Rob Cooper, Todd Milton, Terry J. Klopfenstein, Dick Clark
Economic Evaluation Of Corn Processing For Finishing Cattle, Rob Cooper, Todd Milton, Terry J. Klopfenstein, Dick Clark
Nebraska Beef Cattle Reports
A finishing trial was conducted to determine performance of steers fed dry-rolled, high-moisture and steamflaked corn-based diets. High-moisture corn and steam-flaked corn were determined to have 100% and 108% the value of dry-rolled corn, respectively. Estimated costs of corn processing ($/ton) ranged from $1.44 to $1.60 for dry-rolled corn, $1.98 to $2.34 for high-moisture corn, and $6.79 to $7.16 for steam-flaked corn. Economics of high-moisture corn are dependent on the discount at which it is purchased to dry corn. Economics of steam-flaked corn are dependent on corn price, but appear attractive at prices common in Nebraska.
Managing Heat Stress In Feedlot Cattle Using Sprinklers, Shane Davis, Terry L. Mader, Wanda Cerkoney
Managing Heat Stress In Feedlot Cattle Using Sprinklers, Shane Davis, Terry L. Mader, Wanda Cerkoney
Nebraska Beef Cattle Reports
Ninety-six Bos taurus steers were used to determine the effect of water application to feedlot mounds on performance, behavior and tympanic temperature of steers and microclimatic conditions of the mounds. Steers were assigned to 12 pens subjected to no water application (CON), water applied between 1000 and 1200 (AM), or 1400 and 1600 hr (PM). Water application lowered soil temperatures of the mounds with little effect on temperature-humidity index. Tympanic temperatures were lowered by treatment. Performance variables were not affected; however, AM steers were more efficient than PM steers.
The Role Of Muscle Glycogen In Dark Cutting Beef., Dana J. Hanson, Kevin Kirchofer, Chris R. Calkins
The Role Of Muscle Glycogen In Dark Cutting Beef., Dana J. Hanson, Kevin Kirchofer, Chris R. Calkins
Nebraska Beef Cattle Reports
Dark cutting beef occurs when muscle glycogen levels are depleted prior to slaughter. Without glycogen, lactic acid is not produced in postmortem muscle, causing a higher than normal muscle pH. This research was conducted to identify the threshold level of glycogen where the dark cutting condition is likely to occur. These data from muscles varying widely in pH suggest that muscle glycogen levels need to be at or above 80 mmol/kg to prevent the dark cutting beef condition.
Protein Supplements And Performance Of Cows And Calves In June-Calving Production Systems, Amelia Hopkin, Don C. Adams, Terry J. Klopfenstein, Todd Milton, Dick Clark
Protein Supplements And Performance Of Cows And Calves In June-Calving Production Systems, Amelia Hopkin, Don C. Adams, Terry J. Klopfenstein, Todd Milton, Dick Clark
Nebraska Beef Cattle Reports
Lactating, June-calving cows that received protein supplement January through March maintained a lower body condition than dry June cows. Dry, nonsupplemented cows lost more body condition compared to dry, supplemented cows over that same time period. June-born steers wintered at a low rate of gain (.4 lb/day) had higher daily gains on sub-irrigated meadow during May than June born steers wintered at a higher rate of gain (1.6 lb/day). Supplemental protein fed during summer grazing on range increased daily gains for steers wintered at both high and low gains compared to non-supplemented steers.
Wet Corn Gluten Feed Supplementation Of Calves Grazing Corn Residue, D. J. Jordon, Terry J. Klopfenstein, Todd Milton
Wet Corn Gluten Feed Supplementation Of Calves Grazing Corn Residue, D. J. Jordon, Terry J. Klopfenstein, Todd Milton
Nebraska Beef Cattle Reports
Incremental levels of wet corn gluten feed were fed to calves grazing corn residues. Based on statistical and economical analysis of the data collected, feeding wet corn gluten feed (5.0-6.5 lb/ head/day; DM basis) will increase stocking rate on corn residue and reduce winter costs by 11%. Given that 3.5 lb DM/day wet corn gluten feed will meet the protein and phosphorus needs of calves, and feeding above 6.0 lb/d will not increase gains, wet corn gluten feed should be fed at 3.5-6.0 lb DM/day, producing gains from 1.28- 1.88 lb/day.
Restricted Feeding Strategies For Reducing Heat Load Of Yearling Steers, Terry L. Mader, Simone Holt, Tony Scott, Shane Davis
Restricted Feeding Strategies For Reducing Heat Load Of Yearling Steers, Terry L. Mader, Simone Holt, Tony Scott, Shane Davis
Nebraska Beef Cattle Reports
Eighty-four Bos taurus crossbred steers were used to investigate effects of level and duration of limit feeding feedlot cattle in a hot environment. Restricting feed intake to 70 to 80% of ad libitum for 21 days duration (RES21) or for 42 days duration (RES42) reduced tympanic temperature in both RES21 and RES42 when compared with ad libitum treatment groups under both thermoneutral and hot conditions. Temperature reduction approached 1.5 F0 depending on time of day. Limit feeding feedlot cattle during early summer is a successful tool for enhancing animal comfort by alleviating the combined effects of high temperatures and …
Urinary Allantoin Excretion As A Marker Of Microbial Crude Protein Supply For Cattle, Ryan Mass, D. J. Jordon, Tony Scott, Todd Milton, Terry J. Klopfenstein, David Harmon
Urinary Allantoin Excretion As A Marker Of Microbial Crude Protein Supply For Cattle, Ryan Mass, D. J. Jordon, Tony Scott, Todd Milton, Terry J. Klopfenstein, David Harmon
Nebraska Beef Cattle Reports
Two metabolism trials evaluated urinary allantoin excretion as a noninvasive marker of microbial crude protein flow from the rumen. In the first trial, both urinary allantoin excretion and duodenal purine flow increased as alfalfa intake increased. A positive linear relationship (r2 = .74) existed between the markers. In the second trial, an increase in the metabolizable energy supplied to the animal did not increase urinary allantoin excretion. We concluded that urinary allantoin excretion was an effective, noninvasive marker of microbial crude protein supply.
Urinary Allantoin Excretion Of Finishing Steers: Effects Of Grain Adaptation And Wet Milling Byproduct Feeding, Ryan Mass, D. J. Jordon, Todd Milton, Terry J. Klopfenstein, Rick Stock
Urinary Allantoin Excretion Of Finishing Steers: Effects Of Grain Adaptation And Wet Milling Byproduct Feeding, Ryan Mass, D. J. Jordon, Todd Milton, Terry J. Klopfenstein, Rick Stock
Nebraska Beef Cattle Reports
A metabolism trial investigated microbial protein supply for finishing cattle. In Phase I, cattle were adapted to a dry-rolled corn diet. Urinary allantoin excretion was positively correlated with TDN supply. In Phase II, cattle were fed that diet or diets with a portion of the corn replaced by one of two levels of the corn wet milling byproducts steep liquor or distillers’ solubles. Byproducts inclusion did not increase microbial crude protein supply, as measured by urinary allantoin excretion. Rumen pH also correlated with microbial crude protein supply.
Economic Returns Of Wet Byproducts As Cattle Feed, Richard K. Perrin, Terry J. Klopfenstein
Economic Returns Of Wet Byproducts As Cattle Feed, Richard K. Perrin, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Research at the University of Nebraska and other institutions has demonstrated the feasibility of feeding corn sweetener/ethanol industry byproducts directly to cattle in wet form, rather than marketing them as dried feeds. Using a combination of experimental results, survey data and market prices, the average value of these wet feed products was about $130 per ton of dry matter during the 1990s, compared to their alternative value as dried feed of $93 per ton. Given the amounts fed, the annual net benefits of this innovation in Nebraska grew from about $1 million in 1992 to an annual average of about …
Corn Processing Method In Finishing Diets Containing Wet Corn Gluten Feed, Tony Scott, Todd Milton, Terry J. Klopfenstein, Rick Stock
Corn Processing Method In Finishing Diets Containing Wet Corn Gluten Feed, Tony Scott, Todd Milton, Terry J. Klopfenstein, Rick Stock
Nebraska Beef Cattle Reports
Two trials were conducted to determine the effects on performance and carcass characteristics of corn grain diets differing in degree of processing and containing wet corn gluten feed. Generally, more intensive processing methods such as fine-grinding, high moisture ensiling, and steam-flaking resulted in lower daily feed consumption compared to feeding rolled or whole corn. Feed efficiency and dietary net energy concentration tended to be improved by more intensive processing methods in finishing diets containing wet corn gluten feed.
Programmed Gain Finishing Systems In Yearling Steers Fed Dry-Rolled Corn Or Wet Corn Gluten Feed Finishing Diets, Tony Scott, Todd Milton, Terry J. Klopfenstein
Programmed Gain Finishing Systems In Yearling Steers Fed Dry-Rolled Corn Or Wet Corn Gluten Feed Finishing Diets, Tony Scott, Todd Milton, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
One hundred sixty crossbred yearling steers were used in a completely randomized design to determine the response to a programmed gain finishing system in diets with and without wet corn gluten feed. Including a programmed gain phase in the finishing period reduced daily gain, hot carcass weight, fat thickness and marbling score in diets with and without wet corn gluten feed. Diets containing wet corn gluten feed increased daily gain, hot carcass weight and fat thickness compared with diets containing only dry-rolled corn. Programming gain improved efficiency but reduced net return per animal and increased cost of gain versus ad …
Annual Forage Production And Quality Trials, Burt Weichenthal, David Baltensperger, Kenneth P. Vogel
Annual Forage Production And Quality Trials, Burt Weichenthal, David Baltensperger, Kenneth P. Vogel
Nebraska Beef Cattle Reports
Two-year forage trials showed higher dry matter yields for winter triticale than for winter wheat while forage qualities were similar. Likewise, a spring triticale cultivar had higher dry matter yields than spring barley or oat cultivars when harvested for forage after heading, and forage qualities were similar. In summer trials, dryland forage sorghum and sorghum x sudangrass hybrids had higher crude protein, digestibility and energy values than irrigated forages because they were not as mature. Lower lignin content and higher digestibility resulted when the brown midrib trait was present in forage sorghum or sorghum x sudangrass hybrids.
Solvent-Extracted Germ Meal As A Component Of Wet Corn Gluten Feed: Effect On Ruminal Acidosis, Daniel Herold, Rob Cooper, Ryan Mass, Terry J. Klopfenstein, Todd Milton, Rick Stock
Solvent-Extracted Germ Meal As A Component Of Wet Corn Gluten Feed: Effect On Ruminal Acidosis, Daniel Herold, Rob Cooper, Ryan Mass, Terry J. Klopfenstein, Todd Milton, Rick Stock
Nebraska Beef Cattle Reports
Dry matter intake and ruminal acid concentration were used to evaluate the influence of a dry-rolled corn (Control) and wet corn gluten feed diets (corn bran and steep liquor with distillers solubles, with or without solvent-extracted germ meal) on acidosis. Wet corn gluten feed without solvent-extracted germ meal promoted highest dry matter intake and daily minimum ruminal pH during grain adaptation. Control reduced intake and ruminal pH more than wet corn gluten feed diets, but increased propionate production. When solvent-extracted germ meal was included in wet corn gluten feed, intake was slightly reduced and ruminal pH was more variable.
2000 Nebraska Beef Cattle Report
2000 Nebraska Beef Cattle Report
Nebraska Beef Cattle Reports
Cow/Calf
Age of Calf at Weaning of Spring-Calving Beef Cows and the Effect on Production Economics
Supplementing Metabolizable Protein to Yearling Heifers Grazing Winter Range
Refinement of the MGA/PGF Synchronization Program for Heifers Using a 19-Day PGF Injection
Replacement Heifer Development Programs
Copper Levels and Sources in Pre- and Post-calving Diets of First-Calf Cows
Growing
Effects of Length of Grain Feeding and Backgrounding Programs on Beef Carcass Characteristics
Compensatory Growth Response and Breakeven Economics of Yearling Steers on Grass
Evaluation of the 1996 Beef Cattle NRC Model Predictions of Intake and Gain for Calves Fed Low or Medium Energy Density …
Effects Of Increasing Rumensin Level During A Potential Acidosis Challenge, Mark Blackford, Todd Milton, Terry J. Klopfenstein, D. J. Jordon, Rob Cooper, Tony Scott, N. A. Singari, Cal Parrott
Effects Of Increasing Rumensin Level During A Potential Acidosis Challenge, Mark Blackford, Todd Milton, Terry J. Klopfenstein, D. J. Jordon, Rob Cooper, Tony Scott, N. A. Singari, Cal Parrott
Nebraska Beef Cattle Reports
Nine ruminally fistulated yearling steers were used in a 9 x 2 Incomplete Latin square to evaluate benefits of an increase in dietary Rumensin level during an imposed acidosis challenge. Feeding Rumensin, at either 30 or 45g/ ton reduced acidosis on the challenge day. However, increasing the dietary Rumensin concentration to 45g/ton was required to reduce acidosis for the five days following that challenge. Feeding 45g/ton reduced ruminal pH area below 5.6 when compared to the normal level of 30g/ton during the five days following the challenge.