Annual Forages Following Irrigated Winter Wheat,
2016
University of Nebraska-Lincoln
Annual Forages Following Irrigated Winter Wheat, Karla H. Jenkins, Aaron Berger, Gary Hergert Hergert
Nebraska Beef Cattle Reports
A sorghum- sudangrass hybrid, oats, and foxtail millet were compared using two planting dates and two irrigation levels in western Nebraska following irrigated winter wheat. In 2012, regardless of planting date and irrigation level, the sorghum- sudangrass hybrid produced more dry matter tons than oats and millet (2.0 vs. 1.3 and 1.2, respectively). In 2013, the sorghum- sudangrass hybrid and oats produced more dry matter tons than millet (1.0 and 1.1 vs. 0.64, respectively). Th e earlier forages could be planted, the more dry matter tons were produced before frost. Across planting dates and water level, crude protein was 11– …
Evaluating Syngenta Enhanced Feed Corn Processed As
Dry- Rolled Or High- Moisture Corn On
Cattle Performance And Carcass Characteristics,
2016
University of Nebraska-Lincoln
Evaluating Syngenta Enhanced Feed Corn Processed As Dry- Rolled Or High- Moisture Corn On Cattle Performance And Carcass Characteristics, Melissa L. Jolly- Breithaupt, Curtis J. Bittner, Dirk Burken Burken, Galen E. Erickson, Jim C. Macdonald, Matt K. Luebbe
Nebraska Beef Cattle Reports
A finishing trial was conducted as a 2x2x2 factorial to determine the effect of Syngenta Enhanced Feed Corn™ containing an alpha amylase enzyme trait (SYT- EFC) compared with the parental isoline control corn without the amylase enzyme trait (Negative Isoline) on cattle performance and carcass characteristics. Th e two types of corn grain were processed as either dry- rolled corn (DRC) or high- moisture corn (HMC) and fed with either 18% modifi ed distillers grains plus solubles (MDGS) or 35% Sweet Bran. Cattle fed SYT- EFC DRC with MDGS had a 3.9% improvement in feed conversion compared to Negative Isoline …
Effect Of Harvest Method On Residue Quality,
2016
University of Nebraska-Lincoln
Effect Of Harvest Method On Residue Quality, Tasha M. King, Robert G. Bondurant, Jana L. Harding Harding, Jim C. Macdonald, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A growing study was conducted to evaluate the effect of residue quality due to harvest method and inclusion of supplemental rumen undegradable protein on performance of growing steers. The residue harvested with an alternative method to minimize stem increased gain and improved efficiency compared to conventionally harvested corn residue. Inclusion of rumen undegradable protein increased gain and improved feed effi ciency compared to diets without supplemental rumen undegradable protein.
Effect Of Diet On The Rumen Microbial
Community Composition Of Finishing Cattle And The
Role It Plays In Methane Emissions,
2016
University of Nebraska-Lincoln
Effect Of Diet On The Rumen Microbial Community Composition Of Finishing Cattle And The Role It Plays In Methane Emissions, Allison L. Knoell, Christopher L. Anderson, Anna C. Pesta Pesta, Galen E. Erickson, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
To understand the relationships between diet, microbial community, and methane production cattle were esophageally tubed when fed a common diet and again during feeding of six treatment diets. Microbial community analysis via 16S tag sequencing, displayed structuring of microbial communities (Bacteria and Archaea) by diet. Th is study demonstrates that the diets tested altered the microbial community from the common diet but had no effect (P > 0.05) between dietary treatments used in the study. While the microbial community changed from the common diet to the treatments was observed, an alteration in microbial community or methane production was not observed due …
Effect Of Feeding Dried De-Oiled Distillers Grains And
Addition Of Postmortem Antioxidants On Ground Beef Shelf Life,
2016
University of Nebraska-Lincoln
Effect Of Feeding Dried De-Oiled Distillers Grains And Addition Of Postmortem Antioxidants On Ground Beef Shelf Life, Jenae C. Martin, Brandy D. Cleveland, Tommi F. Jones Jones, Jim C. Macdonald, Gary Sullivan
Nebraska Beef Cattle Reports
Ground beef patties from cattle fed either corn based diets with no distillers grains (control) or dried, de-oiled distillers grains (DDDG) during the finishing phase were compared to analyze color stability during retail display. As display time increased, patties with added antioxidant had less discoloration than those without antioxidant. Patties from cattle fed DDDG had the greatest discoloration when no antioxidant was included. Both raw and cooked ground beef from cattle fed DDDG had increased lipid oxidation towards the end of display than beef from corn- finished cattle. Furthermore, corn-finished cattle had lower concentrations of C18:2 in both composite and …
Impact Of Crude Glycerin Supplementation On Rumen And
Duodenal Microbial Populations In Forage Diets,
2016
University of Nebraska-Lincoln
Impact Of Crude Glycerin Supplementation On Rumen And Duodenal Microbial Populations In Forage Diets, Andrea R. Mccain, Robert G. Bondurant, Melissa Jolly Jolly, Jana L. Harding, Samodha C. Fernando, Jim C. Macdonald
Nebraska Beef Cattle Reports
Seven ruminally and duodenally fistulated beef steers were fed 0%, 4%, 8%, and 12% crude glycerin in forage- based diets. Rumen and duodenal samples were used to determine the effects of crude glycerin on the prevalence of five selected species of ruminal bacteria. In the rumen, Anaerovibrio lipolytica and Selenomonas ruminantium increased while Butyrivibrio fibrosolvens, Fibrobacter succinogenes, and Megasphaera elsdenii were unaffected. In the duodenum, A. lipolytica, S. ruminantium, and B. fibrosolvens increased while F. succinogenes and M. elsdenii were unaffected. Changes in the relative abundance of microbial species may help explain animal performance responses to crude glycerin.
Effect Of Corn Residue Composition On Digestibility By Lambs,
2016
University of Nebraska-Lincoln
Effect Of Corn Residue Composition On Digestibility By Lambs, Levi J. Mcphillips, Janessa J. Updike, Jim C. Macdonald Donald, Terry J. Klopfenstein, Jana L. Harding, Melissa L. Jolly- Breithaupt
Nebraska Beef Cattle Reports
A lamb digestion trial was conducted to determine the effect of harvest method on total tract digestibility of corn residues. Two residues were harvested using a corn head which gathered 4- rows or 8- rows of stalks with the tailings dropped on the top of the windrow. Corn husks were fed as a control. Diets contained 64.18% corn residue and 35.82% DM of Sweet Bran®, brome grass hay, and sheep mineral. Th ere were no differences in OM, DM, or NDF digestibility between 4- row and 8- row residues. Corn husks had the greatest digestibility.
Finishing Yearling Heifers Using Self- Fed
Dried Distillers Grains On Pasture,
2016
University of Nebraska-Lincoln
Finishing Yearling Heifers Using Self- Fed Dried Distillers Grains On Pasture, Jared M. Mracek, Jason M. Warner, Bradley R. Wetovick Wetovick, Dennis E. Bauer, Twig T. Marston, Jim C. Macdonald, Jerry D. Volesky, Richard J. Rasby
Nebraska Beef Cattle Reports
A 2- yr study compared a traditional system of grazing yearlings followed by a grain- based drylot finishing program to a system using a self- fed dried distillers grain supplement during a spring/summer/fall pasture grazing season. Th e self- fed (SF) heifers had greater ADG and ending BW on pasture but the traditionally managed heifers had greater final BW and HCW. At harvest, SF heifers had greater 12th rib back fat. When data were adjusted to a common empty body fat, carcass weight and marbling score were greater for traditionally managed heifers.
Effect Of Safeguard® On Fecal Egg Count And
Steer Performance In Newly Received Calves,
2016
University of Nebraska-Lincoln
Effect Of Safeguard® On Fecal Egg Count And Steer Performance In Newly Received Calves, Antonio J. Neto, Curtis J. Bittner, Brandon L. Nuttelman Nuttelman, Galen E. Erickson
Nebraska Beef Cattle Reports
The effects of Safeguard® on fecal egg count (FEC) and performance of newly received calves in the feedlot were evaluated. Treatments were Safeguard® and Dectomax® injectable or only Dectomax® injectable. Th e basal diet consisted of 30% dry- rolled corn, 36% Sweet Bran® Cargill, 30% alfalfa hay, and 4% supplement. Th ere were no diff erences in DMI, ADG, F:G, and initial FEC between treatments. However, FEC on d 19 was lower for animals receiving Safeguard® and Dectomax® compared to Dectomax®. Th e combination of Safeguard® and Dectomax ® reduced FEC to very low amounts of newly received calves in …
Effect Of Mga Vs Cidr Estrus Synchronization On Estrus
Response And Pregnancy Rates In 311 D Old Beef Heifers,
2016
University of Nebraska-Lincoln
Effect Of Mga Vs Cidr Estrus Synchronization On Estrus Response And Pregnancy Rates In 311 D Old Beef Heifers, Hazy R. Nielson, Rosemary V. Anderson, Rick N. Funston Funston
Nebraska Beef Cattle Reports
A study compared the effect of melengestrol acetate (MGA)-prostaglandin (PG) and 14- day controlled internal drug release (CIDR)- PG estrus synchronization protocols on estrus response and pregnancy rates of 311 d old heifers (n = 153). Pre-breeding BW was 50.1% of predicted mature BW. Percentage of heifers demonstrating signs of estrus was similar between synchronization treatments (CIDR vs MGA, 71.5 vs 77.4 ± 1.0%). Pregnancy rates to AI of heifers expressing estrus (n = 115) and final pregnancy rate were similar between CIDR and MGA synchronization treatments. Approximately half of these 311 d old heifers exposed to AI and bulls …
Comparison Of Tai At Gnrh Injection And
Delayed Insemination Of Non- Estrus Beef Heifers,
2016
University of Nebraska-Lincoln
Comparison Of Tai At Gnrh Injection And Delayed Insemination Of Non- Estrus Beef Heifers, Hazy R. Nielson, Dan J. Kelly, T. L. Meyer, Rick N. Funston
Nebraska Beef Cattle Reports
Heifers were estrus synchronized utilizing the melengestrol acetate (MGA)- prostaglandin (PG) protocol. Heifers expressing estrus aft er synchronization were removed from the herd and AI. Heifers not expressing estrus were administered GnRH and either AI at GnRH injection or AI 19 hours following GnRH injection. Heifers AI from estrus detection had a higher pregnancy rate compared with heifers not expressing estrus. Pregnancy rates to AI did not diff er between heifers AI immediately aft er GnRH compared to heifers AI 19 hours aft er the GnRH injection. Th ere was no benefit to delayed AI of non-estrus beef heifers compared …
How Many Clean-Up Bulls Are Needed Aft Er
Estrus Synchronization And Artificial Insemination?,
2016
University of Nebraska-Lincoln
How Many Clean-Up Bulls Are Needed Aft Er Estrus Synchronization And Artificial Insemination?, Hazy R. Nielson, Rick N. Funston
Nebraska Beef Cattle Reports
To evaluate the ideal number of bulls to use following estrus synchronization and artificial insemination (AI), research reporting AI and final pregnancy rates and bull to female ratio in Bos taurus cattle was reviewed and summarized. Pregnancy rate means were weighted based on the number of females in each study. Final pregnancy rates for a normal bull to female ratio (1:20 to 30) in a natural service setting were 87.8%. In comparison, final pregnancy rates following estrus synchronization and AI for a normal, intermediate (1:31 to 49), and half the number of bulls (1:50 to 60) were 87.8, 82.6, and …
Effect Of Feeding De-Oiled Dry Distillers Grains Plus
Solubles On Beef Oxidation, Color And Tenderness,
2016
University of Nebraska-Lincoln
Effect Of Feeding De-Oiled Dry Distillers Grains Plus Solubles On Beef Oxidation, Color And Tenderness, Keni E.Z. Nubiato, Katherine I. Domenech, Galen E. Erickson Erickson, Chris R. Calkins
Nebraska Beef Cattle Reports
Cattle fed a de-oiled dry distillers grains plus solubles (DDGS) diet (50% DM basis) were compared to cattle fed a corn- based control diet to determine effects on discoloration, oxidation, color, and tenderness of beef aged for 2, 8, 14 and 21 days. Dietary treatment had no effect on tenderness. From the fourth day of retail display, beef from animals fed de-oiled DDGS had greater lipid oxidation and greater percentages of discoloration. Th e de-oiled DDGS treatment also showed greater discoloration aft er 21 days of aging. While feeding de-oiled DDGS did not impact lipid oxidation at 2, 8 and …
Student Perceptions And Knowledge Of The Feedlot Industry And The Feedyard Management Specialization Internship,
2016
University of Nebraska-Lincoln
Student Perceptions And Knowledge Of The Feedlot Industry And The Feedyard Management Specialization Internship, Rachel A. Oglesbee, Meredith L. Bremer, Kari L. Lewis Lewis, Dennis R. Brink, Terry J. Klopfenstein, Jim C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
A survey was developed for seniors in the undergraduate feedlot management class (ASCI 457) at UNL to gauge interest in feedlot management as a profession and familiarity with the Feedyard Management Internship Program. Th e survey found that students feel the internship is beneficial for a future in production agriculture. Th e internship increases confidence of employment and management skills once participation is complete along with gaining experience. Th e number of positions available and the average salary of feedlot managers are underestimated by students. Recruiting efforts appear to be informing students of the program.
Evaluation Of Distillers Grains Components Singly
Or In Combination In A Calf Fed Feedlot Study,
2016
University of Nebraska-Lincoln
Evaluation Of Distillers Grains Components Singly Or In Combination In A Calf Fed Feedlot Study, Rachel A. Oglesbee, Curtis J. Bittner, F. Henry Hilscher, Galen E. Erickson, Jim C. Macdonald, Matt K. Luebbe
Nebraska Beef Cattle Reports
A finishing study was conducted to determine the value of the fiber, protein, fat, and solubles components from wet distillers grains plus solubles (WDGS) alone or in combination for feedlot cattle in comparison to WDGS diets. The fiber portion alone did not improve F:G. When protein was included in the composite with fiber, F:G improved. With fat and solubles both added separately, F:G continued to improve. None of the components alone could make up the feeding value of WDGS, however the composite diet of fiber, protein, fat, and solubles combined matched the performance observed when WDGS is fed.
Rumen Protected Amino Acids In Finishing Cattle Diets,
2016
University of Nebraska-Lincoln
Rumen Protected Amino Acids In Finishing Cattle Diets, Colton Oney, Curtis J. Bittner, F. Henry Hilscher Hilscher, Andrea K. Watson, Terry J. Klopfenstein, Galen E. Erickson, Whitney Rounds
Nebraska Beef Cattle Reports
A 190- d calf fed finishing study, utilizing 240 steers, was conducted to determine the effects of supplementing finishing cattle with bypass amino acids (methionine and lysine) on growth performance. Three treatments (control, methionine, methionine and lysine) were evaluated with 8 pens/trt. All cattle were fed a 40% Sweet Bran, 50% high moisture corn basal diet. Supplementing with bypass amino acids did not affect live cattle performance, and only small differences in 12th rib fat and USDA marbling score were observed. Lack of any dramatic changes in performance suggests these calves were not deficient in methionine or lysine.
Use Of Dietary Nitrate Or Sulfate For Mitigation Of
Methane Production By Finishing Steers,
2016
University of Nebraska-Lincoln
Use Of Dietary Nitrate Or Sulfate For Mitigation Of Methane Production By Finishing Steers, Anna C. Pesta, Robert G. Bondurant, Samodha C. Fernando Fernando, Galen E. Erickson
Nebraska Beef Cattle Reports
A finishing study was conducted to evaluate the effects of dietary nitrate and sulfate on methane production in finishing cattle. Both nitrate and sulfate addition decreased DMI and ADG. In diets with no sulfate, addition of nitrate had no impact on emissions, but nitrate and sulfate in combination decreased CH4:CO2. However, neither nitrate nor sulfate had any further impact on methane production. Effect of these compounds may be diet dependent and in this study had little impact on CH4 emissions in finishing cattle.
Methane Production, Diet Digestibility, And
Vfa Profile Of Growing Steers Fed High Or Low Quality Forage,
2016
University of Nebraska-Lincoln
Methane Production, Diet Digestibility, And Vfa Profile Of Growing Steers Fed High Or Low Quality Forage, A. C. Pesta, M. L. Jolly- Breithaupt, Samodha C. Fernando Fernando, Paul J. Kononoff, Galen E. Erickson
Nebraska Beef Cattle Reports
A headbox calorimeter study evaluated the impacts of forage quality on methane production, diet digestibility, and VFA profile of growing steers. Daily production of methane and carbon dioxide were greater for steers fed high- quality compared to low- quality forages. Th ere was no difference in DM or OM digestibility, likely due to dramatic intake differences, and no difference in the amount of methane produced per unit of OM digested. Methane emissions data from this study agree reasonably well with those obtained by alternate methods previously utilized by this group.
Effects Of Direct- Fed Microbial Supplementation In
Different Diets On Performance And Carcass Characteristics
Of Beef Feedlot Heifers,
2016
University of Nebraska-Lincoln
Effects Of Direct- Fed Microbial Supplementation In Different Diets On Performance And Carcass Characteristics Of Beef Feedlot Heifers, Laura F. Prados, Nirosh D. Aluthge, Curtis J. Bittner Bittner, F. Henry Hilscher, Samodha C. Fernando, Galen E. Erickson
Nebraska Beef Cattle Reports
The objective of this study was to evaluate performance and carcass characteristics of heifers fed a newly developed direct- fed microbial (DFM), using 336 heifers in a pen study. Th e experiment consisted of feeding corn (CON) or 40% modified distillers grains plus solubles (40MDGS) and presence or absence of DFM added as a top- dress. No significant differences were observed for heifer performance and carcass characteristics due to DFM. Feeding MDGS increased ADG, while reducing F:G compared to CON. The DFM developed for this study did not enhance performance as was hypothesized, while feeding MDGS did.
Impact Of A Newly Developed Direct- Fed Microbial On
Performance In Finishing Beef Steers,
2016
University of Nebraska-Lincoln
Impact Of A Newly Developed Direct- Fed Microbial On Performance In Finishing Beef Steers, Laura F. Prados, Nirosh D. Aluthge, Robert G. Bondurant Bondurant, Samodha C. Fernando, Galen E. Erickson
Nebraska Beef Cattle Reports
An individual feeding experiment (n = 60) was conducted to evaluate the effects of feeding a direct- fed microbial (DFM) or not on performance of finishing steers fed 0 or 40% modified distillers grains (MDGS) in a 2 × 2 factorial design. Gain and F:G were improved when cattle were fed MDGS compared to the corn diet. No significant differences (P ≥ 0.23) were observed between cattle fed DFM or not for DMI and ADG. However, numeric advantages were observed for F:G when cattle were fed a DFM, with a 5% improvement in feed efficiency for steers supplemented with DFM.
