Brief Summary of Minutes of Annual Meeting

Tuesday, May 16^th - General gathering and introduction of new members and guests.  Review committee meeting agenda and discuss priority areas.  Wednesday, May 17^th – Met at North Dakota State University Hultz Hall.  Welcome by Greg Lardy, department head.  Then members and guests were introduced.  It was agreed that next year’s meeting would be held at Colorado State University and hosted by John Wagner.  A brief discuss also took place about writing next years renewal of the project.  It was agreed that Jenny Jennings would head up this process with assistance from John Wagner and Alfredo Docostanzo. The Administrative report was given by John Lawrence by speaker phone.  Among other things, a discussion of the timeline of the renewal of the project was discussed.  The NIFA report was given by Steve Smith by conference call.  Steve gave an update on NIFA programs and a discussion was had on how applied finishing cattle research might fit into NIFA programming.  A discussion was had that members of the committee would be willing to serve on future NIFA grant panels.  Experiment Station Reports were given over the 2-day meeting.  Late morning guest from North Dakota State University, Marc Bauer and Alison Ward, discussed current research on temperature effects on intake and vitamin A effects on marbling, respectively. Toured North Dakota State University cattle facilities in the afternoon. Thursday, May 18^th – Continued Experiment Station Reports in the morning.

Accomplishments:

Short-term Outcomes: 

General:

Members of the NCCC308 committee achieved goals that address nutrition and management issues related to performance, carcass value, and environmental sustainability of beef finishing cattle operations.  This year 12 members of the committee met to share research ideas and discuss research results as related to the committee’s overall goals to work together to assist in sustaining and improving the finishing cattle industry.  Written and oral reports were provided by committee members to allow for the integration and reporting of the overall committee’s outcomes, outputs, activities, milestones, and impacts.  In addition to committee member participation, other scientists and graduate students participated to allow for learning about current and future research ideas and to allow participation of students that will become future scientists and leaders in the industry.    

Objective 1.  Enhance the utilization of C from energy feeds to compete in an energy economy and improve national food security.

Ethanol plants are modifying their production to extract more oil, protein and fiber for use in other industries which changes the nutrient content and energy value.  When ethanol and other biofuel byproducts are fed, the particle size or intensity of processing method may be adjusted to improve energy utilization.  Additionally, improved approaches are being developed to adapt cattle to high-concentrate diets containing distillers grains.  Corn stalks and other low quality residues are abundant and new processes or treatments are being examined (eg. Collaborative research between U of MN, Univ of Ill. And Penn State Univ) as well as effects of storage. 

Objective 2. To enhance the environmental sustainability of the feedlot industry through conservation and nutrient management.

Research has been conducted to better understand the factors influencing feed efficiency in growing and finishing cattle.  This work could result in improved approaches for selecting efficient phenotypes which would also reduce the environmental impact of beef production.  Feed additives that potentially influence nitrogen losses during manure storage also are being examined.

 Objective 3. To enhance the production efficiency and quality of feedlot cattle through management strategies and technologies.

The impact of maternal nutrition on fetal development and subsequent performance of progeny in the feedlot has continued to be examined.  A topic that was discussed in the 2016 meeting was the potential use of alternatives to antibiotics to reduce the incidence of liver abscesses.  From this discussion research was developed to study additives such as essential oils for this purpose. Research also has continued on mineral requirements with emphasis both during receiving as related to health status and during the entire finishing period.  Research also has continued on other additives such as phytase, yeast products, and ractopamine, the effect of growth promoting implant strategy, as well as forage source. 

 Outputs

Committee members gave 42 presentations to stakeholders in state, regional, national and international meetings. The presentations included webinars, cattle producer meetings, and scientific meetings across the US. Findings associated with NCCC308 Objectives were presented. Members of the committee published 27 refereed journal articles, 42 reports and technical reports, and 35 abstracts on project objectives. These outputs were communicated to academia, beef producers, feed industries, pharmaceutical industries, and consulting nutritionists and veterinarians.

Activities

Objective 1.  Enhance the utilization of C from energy feeds to compete in an energy economy and improve national food security.

Based on research from University of Illinois/Pennsylvania State University, the way that residues are harvested and whether or not they are treated, affects how digestible they are and cattle performance when they are fed. Variations in performance and volatility of both the corn and cattle markets are all factors that affect what cattle producers can afford to pay for corn stover. Collaborations with MN have demonstrated that, while corn crop residue treatments had variable and sometimes negligible effects on economics, the use of corn crop residues during the growing phase was the most economically advantageous system. While corn stover gives us one more option to consider, the value to the whole system must be considered

Oklahoma State University has demonstrated that supplementation of Cu, Mn, and Zn prior to feedlot entry can improve the Cu and Mn status within the liver and serum of calves. Improved mineral status can play a substantial role in improving the ability of calves to mount an effective immunological response to stressors that are involved in the BRD complex. Furthermore, they determined that some of the negative carcass characteristics commonly associated with calves that required multiple treatments for BRD after arrival at the feedlot, can be compensated for by allowing them to remain on feed until they reach a similar endpoint as their untreated cohorts.

Based on research from Michigan State University, corn stover bales harvested at lower moisture (35% vs. 45% moisture) are a better option for cattle feed due to improved nutrient quality and better preservation in storage.  Results also indicated that low moisture bales maintain better and have the best results for ethanol production including higher sugar content, higher ethanol yields and lower ash.

Objective 2. To enhance the environmental sustainability of the feedlot industry through conservation and nutrient management.

Research from Michigan State University indicated that feeding an additive designed to reduce N losses from stored manure did not statistically influence growth performance in finishing cattle but resulted in a numerical 7.5% increased nitrogen capture within the manure.

Research from Iowa State University indicated that zinc supplementation results in improved N retention.

Objective 3. To enhance the production efficiency and quality of feedlot cattle through management strategies and technologies.

Based on research at the University of Illinois, adapting cattle to a finishing diet can be done be without hay provided a low level of silage inclusion and may increase cattle growth by up to 6%.

Based on research from Purdue University, inclusion of an essential oil blend or tylosin in the diet of finishing feedlot steers did not affect growth performance, carcass characteristics, or incidence of liver abscesses of feedlot steers, a hydrolyzed yeast prebiotic improved markers of health and metabolic status of immune challenged cattle, but did not result in quantifiable improvements in feedlot steer performance, and elevated protein and/or fat in maternal beef cow diets during late gestation and early lactation had no long-term impacts on feedlot performance of male progeny.

Based on research from the University of Illinois/Pennsylvania University, there appears to be no demonstrated efficacy of including phytase in beef cattle diets.

Based on research from Ohio State University, nutrient composition or feeding time resulted in little difference on performance or carcass characteristics in finishing cattle fed whole-corn grain-based diets.

Based on research from Iowa State University, dietary zinc has minimal effect on rumen histology, but may influence tight junction protein and znt1 expression in ruminants fed a high grain diet,  feeding a yeast fermentation product may result in reduced oxidative stress and better ability to respond to a vaccination challenge,  that regardless of dietary antagonists, injectable  and dietary supplementation of inorganic minerals repleted Cu and Se rapidly, while similar repletion took 28 d and 42 d for the diets containing inorganic or a blend of inorganic and organic mineral sources, dietary Zn supplementation did not affect cattle performance in response to a mild acidosis challenge, and  NRC TM recommendations might not be adequate for finishing beef steers, irrespective of hormone implant administration.

Milestones

The committees milestones are a result from the interaction and collaboration that is generated at our annual meetings in four major areas: 1) determining effective uses of processing or alkali treatment of low quality residues in diets with distillers grains, 2) increasing our understanding of the effects of novel technology or management to improve performance, beef quality and animal welfare, 3) continuing to increase a database that allows us to predict the energy value of byproducts produced using different production methods at the ethanol plant, and 4) determining appropriate mineral concentrations to reduce the impact on the environment. 

Although the committee continues to study the effects of feeding byproducts such as distillers grains and corn stover to cattle as suggested by the results under objective 1, the research direction has seen a shift in focus to examining in more detail other factors and feed additives that could influence growth performance and efficiency as suggested by the results under objective 3.  Members of the committee are devoting more emphasis to develop and test new approaches to improve performance, animal health, and carcass characteristics.  Feeding essential oils, direct fed microbials, and supplemental minerals/vitamins have been studied in the past year.  This is especially important as the regulatory environment could result in increased regulation for use of antibiotics and other feed additives.  The results obtained by different committee members suggest that there may be potential in using essential oils and direct-fed microbials or products to improve performance although the results are not consistent.  Continuing to study alternative approaches for improving production efficiency and sustainability will continue to be an important research topic of this committee.

Gonzalez, S., K. Norman, B.W. Auvermann, K.D. Casey, J. Jennings, B. Pinchak, and H.M. Scott. 2016. Viability of bacteria harboring antimicrobial resistance genes in feedyard dust. Conference of Research Workers and Animal Disease.           

Hansen, S. L. 2016. Iowa State University Feedlot Research Update. Land O’Lakes Feedlot Group. Council Bluffs, IA.

Hansen, S. L. 2017. Mineral nutrition for feedlot cattle. Form A Feed. Larchwood, IA.

Lancaster, N.A., and J.P. Schoonmaker. 2016. Effects of ruminal alkalinizing and/or buffering agents fed to feedlot steers on performance and carcass characteristics. J. Anim. Sci. 94(Suppl. 2):171. Midwestern Section ASAS Regional Meeting. Des Moines, IA. March 14-16, 2016.

Latham, E.A., W.W. Gentry, J.S. Jennings, and W.E. Pinchak. 2016. Rumen metagenome of rumen liquid and solid fractions in response to inclusion of      corn, sorghum, and treated sorghum distillers’ grains in finishing diets. Gut Health Symposium.

Loy, D. 2016. Changing Distillers Grains. UNL Feedlot Roundtables, Bridgeport, Lexington and

West Point, NE.

Loy, D. 2016. Testing for Silage Quality. UNL/ISU Silage Conference, Mead, NE.

Loy, D. 2016. Feedlot Facilities and Cattle Comfort SDSU Feedlot Short Course. Brookings,

Loy, D. 2016. Data Management in the Feedlot. SDSU Feedlot Short Course. Brookings, SD.

Loy, D. 2016. Receiving Cattle Nutrition. Merck Young Veterinarians Conference, Moravia, IA.

Loy, D. 2016. Preventing Nutritional Problems in the Feedlot. Merck Young Veterinarians Conference, Moravia, IA.

McCann, J.M. 2017. Alternatives for Transitioning Cattle to Finishing Diets.  Illinois Cattle Feeders Meeting, Dixon, IL.

Nunez, A.J.C., R.P. Lemenager, K.R. Stewart, E.G. Taylor, and J.P. Schoonmaker. 2016. Effect of increasing protein and fat inclusion in the diet of beef cows during gestation and lactation on performance, milk production, pregnancy rate, and pre-weaning progeny growth. J. Anim. Sci.  94(Suppl. 2):165. Midwestern Section ASAS Regional Meeting. Des Moines, IA. March 14-16, 2016.

Roberts, S. L., N. D. May, C. L. Brauer, W. W. Gentry, C. P. Weiss, J. S. Jennings, and    J. T. Richeson. 2015.  Effect of injectable trace mineral administration on health, performance and vaccine response of newly received beef cattle. ASAS Joint Annual Meeting and Plains Nutrition Council Spring Conference

Rust, S. R. (January 26, 2016)  New NRC Nutrient Requirements for Beef Cattle . 2016 Great Lakes Professional Cattle Feeding and Marketing Shortcourse, Wyoming, Canada.

Rust, S. R. (January 26, 2016)  New NRC Nutrient Requirements for Beef Cattle . 2016 Great Lakes Professional Cattle Feeding and Marketing Shortcourse, Bad Axe, MI.

Rust, S. R. (January 25, 2016) New NRC Nutrient Requirements for Beef Cattle . 2016 Great Lakes Professional Cattle Feeding and Marketing Shortcourse, Bowling Green, OH.

Rust, S. R. (January 24, 2016) New NRC Nutrient Requirements for Beef Cattle . 2016 Great Lakes Professional Cattle Feeding and Marketing Shortcourse, East Lansing, MI.

Rust, S.R. (March 8, 2016) Feeding Malting Barley and Distillers Grains to Cattle, Agriculture For Tomorrow Conference,  Escanaba, MI.

Rust, S.R. (March 8, 2016) Beef Feedlot in the U.P. Agriculture For Tomorrow Conference, Escanaba, MI.

Rust, S.R. (March 16, 2016) Comparison of returns per acre for different corn harvest systems for farmer feeders. Iowa Extension Educators Conference. Ames, IA

Rust, S.R. (March 16, 2016) Rubber coverings for slatted floor  barns. Iowa Extension Educators Conference. Ames, IA

Rust, S.R. (March 30, 2016) What is quality silage and what does it look like? John Deere Forage Meeting, East Lansing, MI

Schoonmaker, J.P. 2016. Alternatives to antibiotics. J. Anim. Sci.  94(Suppl. 2):179. Midwestern Section ASAS Regional Meeting. Des Moines, IA. March 14-16, 2016.

Schoonmaker, J.P. Effect of feeding ethanol by-products on composition of growth in beef cattle. Workshop on U.S. Distillers Dried Grains with Solubles (DDGS). Cochran Fellowship Program for Thailand. February 15, 2016.

Schoonmaker, J. P. Effect of maternal nutrition on calf health and growth. Ohio Veterinary Association. Columbus, OH. January 7-8, 2016.

Schoonmaker, J.P. Modification of ruminal digestion using eubiotics. High Plains Nutrition & Management Roundtable. Akron, CO. September 8, 2016.

Shreck, A. L., N. D. Aluthge, J.S. Jennings, S.C. Fernando, and N.A. Cole. 2015.  Effect of protein supplementation of low-quality forage diets on enteric methane production and ruminal microbial community structure of beef steers.  ASAS Joint Annual Meeting.

Shreck, A. L.,  P. J. Ebert, J. S. Jennings, N. A. Cole, and E. A. Bailey.  2015. Effect of altered nitrogen excretion by condensed tannin supplement on steer energy losses. ASAS Joint Annual Meeting.

Shreck, A. L., P. Ebert, E.A. Bailey, J.S. Jennings, K.D. Casey, and N.A. Cole.  2015. Effects of supplementation to steers consuming green chopped wheat pasture on energy losses and nitrogen balance.  ASAS Joint Annual Meeting.

Walter, L. J., N. A. Cole, J. S. Jennings, J. P. Hutcheson, B. E. Meyer, A. N. Schmitz, D. D.Reed and T. E. Lawrence. 2015.  The effect of zilpaterol hydrochloride supplementation on energy metabolism of steers at maintenance and fasting intake levels.  ASAS Joint Annual Meeting.

Walter, L. J., N. A. Cole, J. S. Jennings, J. P. Hutcheson, B. E. Meyer, A. N. Schmitz, D. D. Reed and T. E. Lawrence. 2015.  The effect of zilpaterol hydrochloride supplementation on apparent nutrient digestibility and carbon-nitrogen           retention of steers fed at maintenance intake.  ASAS Joint Annual Meeting.

Walter, L. J., N. A. Cole, J. S. Jennings, J. P. Hutcheson, B. E. Meyer, A. N. Schmitz, D. D. Reed and T. E. Lawrence. 2015.  The effect of zilpaterol hydrochloride supplementation on gain efficiency, harvest yields and carcass grading of steersfed a maintenance intake.  ASAS Joint Annual Meeting.

Weiss, C.P., W.W. Gentry, C. L. Brauer, F. T. McCollum, N. A. Cole, and J. S. Jennings. 2016. Effects of feeding corn condensed distillers solubles and crude glycerin alone or in combination on growth performance and carcass characteristics of finishing steers. Midwest Section, ASAS.

Publications

Carlos-Valdez, L.L., B..K. Wilson; L. Burciaga-Robles; D.L. Step; B.P. Holland, C.J. Richards, M. Montelongo, A. Confer, R. Fulton, and C.R. Krehbiel. 2016. Effect of timing of Mannheimia haemolytica challenge following short-term natural exposure to bovine viral diarrhea virus type 1b on animal performance and immune response in beef steers. J. Anim. Sci. 94:4799-4808.

Cassady, C. J., T. L. Felix, J. E. Beever, D. W. Shike and And The National Program for Genetic Improvement of Feed Efficiency in Beef Cattle (S. L. Hansen, D. D. Loy). 2016. Effects of timing and duration of test period and diet type on intake and feed efficiency of Charolais-sired cattle. J. Anim. Sci. First Look. doi:10.2527/jas.2016-0633.

Genther-Schroeder, O. N., M. Branine, and S. L. Hansen. 2016. The effects of increasing supplementation of zinc-amino acid complex on growth performance, carcass characteristics, and inflammatory response of beef cattle fed ractopamine hydrochloride. J. Anim. Sci. 94:3389-3398.

Genther-Schroeder, O. N., M. E. Branine, and S. L. Hansen. 2016. The influence of supplemental Zn-amino acid complex and ractopamine hydrochloride feeding duration on growth performance and carcass characteristics of finishing beef cattle. J. Anim. Sci. 94-4338-4345. 

Gentry W.W., C. P. Weiss, C. M. Meredith, F.T. McCollum, N.A. Cole, and J.S. Jennings. 2016. Effects of roughage inclusion and particle size on performance and rumination behavior of finishing beef steers. J. Anim. Sci. 2016.94:1-12. doi:10.2527/jas2016-0734.

Gordon B., S. W. Hahm, J. J. Wagner, J. S. Jennings, T. E. Engle, and H. Han, 2016. Aspergillus oryzae α-amylase supplementation on rumen volatile fatty acid profile and relative abundance of mRNA associated with nutrient absorption in ruminal and duodenal tissue from beef steers. Prof. Anim. Sci. 24: 4: 448-      454.

Huang, H., Z. Wang, S. Pan, L.M. Shoup, T.L. Felix, J.B. Perkins, O. May, V. Singh. 2016. Fungal pretreatment to improve digestibility of corn stover for animal feed. Amer. Soc. Ag. Bio. Eng. (in press)

Keomanivong, F. E., C. O. Lemley, L. E. Camacho, R. Yunusova, P. P. Borowicz, J. S. Caton, A. M. Meyer, K. A. Vonnahme, and K. C. Swanson. 2016. Influence of nutrient restriction and melatonin supplementation of pregnant ewes on maternal and fetal pancreatic digestive enzymes and insulin-containing clusters. Animal. 10:440-448.

Ladeira, M. M., J. P. Schoonmaker, M. P. Gionbelli, J. R. Carvalho, and P. D. Texeira. 2016. Nutrigenomics and beef quality: A review about lipogenesis. Int. J. Mol. Sci. 17:918 doi:10.3390/ijms17060918

Long, C.L., L. Kondratovich, M. Westphalen, and T.L. Felix. 2017. Effects of exogenous phytase supplementation on phosphorus metabolism and digestibility of beef cattle. Trans. Anim. Sci. (accepted)

Lundy, E. L., C. E. Andresen, S. A. Freeman, D. D. Loy, and P. J. Gunn.  Utilization of a modified Delphi method for needs assessment and curriculum revision of a senior-level beef systems management course.  Accepted for publication in NACTA Journal (Nov. 2016).

Muegge, C.R., K.M. Brennan, and J. P. Schoonmaker. 2016. Supplementation of organic and inorganic selenium to late gestation and early lactation beef cows on cow and pre-weaning calf performance. J. Anim. Sci. 94:3399-3408.

Niedermeyer, E.K., O.N. Genther-Schroeder, D.D. Loy and S.L. Hansen. 2017. The effects of injectable trace minerals on growth performance and mineral status of Angus beef steers raised in a natural feedlot program.  The Professional Animal Scientist (in-press)

Pogge, D. J., Drewnoski, M. E., D. Snider, W. Rumbeiha, and S. L. Hansen. 2016. Effect of ferric ammonium citrate in feedlot diets with varying dried distillers grains inclusion on ruminal hydrogen sulfide concentrations and steer growth. J. Anim. Sci. 94:3894-3901.

Relling, A.E., Lowe, G. and Fluharty, F.L. 2017. Effect of oscillating time of feeding and oscillating diet formulation on performance and carcass characteristics in feedlot steers, The Professional Animal Scientist, 33:160-165.

Roberts, S. L., N. D. May, C. L. Brauer, W. W. Gentry, C. P. Weiss, J. S. Jennings, and J. T. Richeson. 2016. Effect of injectable trace mineral administration on health, performance, and vaccine response to newly received beef cattle. Prof. Anim. Sci. 32:842-848. doi:10.15232/pas.2016-01543.

Russell, J. R., E. L. Lundy, N. O. Minton, W. J. Sexten, M. S. Kerley, S. L. Hansen, and National Program for Genetic Improvement of Feed Efficiency in Beef Cattle. 2016. Influence of growing phase feed efficiency classification on finishing phase growth performance and carcass characteristics of beef steers fed different diet types. J. Anim. Sci. 94:2927-2936.

Russell, J. R., W. J. Sexten, M. S. Kerley, and S. L. Hansen. 2016. Relationship between antioxidant capacity, oxidative stress, and feed efficiency in beef steers. J. Anim. Sci.  94:2942-2953.

Russell, J. R., N. O. Minton, W. Sexten, M. Kerley, S. L. Hansen. 2016. Influence of feed efficiency classification on diet digestibility and growth performance of beef steers. J. Anim. Sci. 94:1610-1619.

Salim, H., K. M. Wood, J. P. Cant, and K. C. Swanson. 2016. Short Communication: Influence of feeding increasing levels of dry or modified wet corn distillers grains plus solubles in whole corn grain-based finishing cattle diets on pancreatic mass, and α-amylase and trypsin activity. Can. J. Anim. Sci. 96:294-298.

Shee, C. N., R. P. Lemenager, and J. P. Schoonmaker. 2016. Feeding dried distillers grains with solubles to lactating beef cows: impact of excess crude protein and fat on cow performance, milk production, and pre-weaning progeny growth. Animal. 10:55-63.

Venegas-Vargas C, S. Henderson, A. Khare, R.E. Mosci, J.D. Lehnert, P. Singh, L.M. Ouellette, B. Norby, J.A. Funk, S.R. Rust, P.C. Bartlett, D.L.  Grooms, and S.D.  Manning. 2016. Factors associated with Shiga toxin-producing Escherichia coli shedding by dairy and beef cattle. Appl Environ Microbiol 82:5049–5056. doi:10.1128/AEM.00829-16.

Walters, L.J., N. A. Cole, J. S. Jennings, J. P. Hutcheson, B. E. Meyer, A. N. Schmitz, D. D. Reed, and T. E. Lawrence. 2016.  The effect of zilpaterol hydrochloride supplementation on energy metabolism and nitrogen and carbon retention of steers fed at maintenance and fasting intake levels. J. Anim. Sci. 94: 10: 4401-4414. doi:10.2527/jas.2016-0612.

Weiss C. P., W.W. Gentry, F.T. McCollum, N.A. Cole, and J.S. Jennings. 2016. Effects of feeding corn condensed distillers solubles and crude glycerin alone or in combination on growth performance and carcass characteristics of finishing      steers. J. Anim. Sci. 95: 2: 922-929. doi:10.2527/jas2016-0941.

Wilson, B.K., B.P. Holland, D.L. Step, M. Jacob, D.L. VanOverbeke, C.J. Richards, T.G. Nagaraja, and C.R. Krehbiel. 2016. Feeding wet distillers grains plus solubles with and without a direct-fed microbial to determine performance, carcass characteristics, and fecal shedding of Escherichia coli 0157:H7 in feedlot heifers. J. Anim. Sci. 94:297-305.

Wilson, B.K., M. Vazquez-Anon, D.L. Step, K.D. Moyer, C.L. Haviland, C.L. Maxwell, C.F. O’Neill, C.A. Gifford, C.R. Krehbiel and C.J. Richards. 2016. Effect of copper, manganese, and zinc supplementation on the performance, clinical signs, and mineral status of calves following exposure to bovine viral diarrhea virus type 1b and subsequent Mannheimia haemolytica infection. J. Anim.Sci. 94:1123-1140.

Yihang, Li, S. L. Hansen, L. B. Borst, J. W. Spears, and A. J. Moeser. 2016. Dietary Iron Deficiency and Oversupplementation Increase Intestinal Permeability, Ion Transport, and Inflammation in Pigs. J. Nutr. jn231621; doi:10.3945/jn.116.231621.

Proceedings and Technical Reports

Anele, U., C. Engel, K. Swanson, and D. Baines. 2016. Effects of synbiotics on rumen fermentation. 2016 Crop and Livestock Review, North Dakota State University Carrington Research Center. pp. 50.

Engel, C. L., K. C. Swanson, and V. L. Anderson. 2016. Growing and finishing feedlot performance of steers fed diets with rolled corn or rolled barley and medium- or low-fat dry distillers grains with solubles. North Dakota Beef Report. pp 28-32.

Felix, Tara L. 2015. Limit Feeding Beef Cattle. IX SIMPEC. Lavras, MG Brazil. October 22-24, 2015.

Felix, Tara L. 2016. Alternative Feeds for Beef Cattle. 27^th Annual Florida Ruminant Nutrition Symposium Proceedings. p 103-109, Gainesville, Fl..

Felix, Tara L. and P.H.V Carvalho. 2016. Value considerations for corn residue scenarios. Mn Nutr. Conf. September 22, 2016.

Felix, Tara L. and PHV Carvalho. 2017. Utilization of corn stover for beef cattle. XXI Curso: Novos Enfoques na Produção e Reprodução de Bovinos. Uberlandia, Brazil. March 23-24, 2017.

Gaspers, J. J., K. C. Swanson, F. E. Keomanivong, A. B. P. Fontoura, A. K. Ward, E. Knutson, and G. L. Stokka. 2016. Evaluation of response to vaccination with a bacterial-produced plasmid DNA, Zelnate, on feedlot performance of weaned calves. North Dakota Beef Report. pp 9-11

Genther-Schroeder, O. and S. L. Hansen. 2016. Effect of zinc amino-acid complex and Optaflexx feeding duration on growth performance and carcass characteristics of finishing cattle. Iowa State University Animal Industry Report.

Keomanivong, F. E., Ruch, M. C., Liu, J. H., Kirsch, J. D., C. R. Dahlen, S. Rahman, M. S. Borhan, M. L. Bauer, and K. C. Swanson. 2016. The influence of dry-rolled corn particle size and dried corn distillers grains plus solubles inclusion levels on rumen pH, ammonia and VFA concentration, total in vitro ruminal gas production and enteric methane emission. North Dakota Beef Report. pp 39-42.

Krehbiel, C., B. Wilson, C. Richards, B. Bernhard, C. Haviland, C. Gifford, and D. Step. 2016. Research Update Oklahoma State University: Growth technologies, nutrients, and management protocols used in feedlot cattle to improve health, growth performance and carcass merit Growth technologies, nutrients, and management protocols used in feedlot cattle to improve health, growth performance and carcass merit. Plains Nutr. Council Spring Conf. Pages 17-21. Texas A&M Research and Extension Center, Amarillo.

Loy, Dan, Patrick Gunn, Beth Doran, Russ Euken, Chris Clark, Joe Sellers, Patrick Wall, Garland Dahlke, Sherry Hoyer, Erika Lundy, Lee Schulz and Grant Dewell.  2016.  Iowa Beef Center. Iowa State Univ. Anim. Industry Rep. ASL-R3054.

Niedermayer, E., O. Genther-Schroeder, S. L. Hansen. 2016. Effect of a Trace Mineral Injection on Growth Performance of Natural Beef Feedlot Steers. Iowa State University Animal Industry Report.

Reuter, R., G. Mourer, and C. Richards. 2016. Implants and Their Use I n Beef Cattle Production Systems. ANSI-3290.

Richards, C. 2016. Growth promoting technologies: The interaction of economics, welfare, and sustainability. Proceedings of KOMA Conference. Dewey, OK

Richards, C. 2016. Implant, Dehorning and Identification. Proceedings of the 2016 Cow/Calf Boot Camp. Ada, OK.

Richards, C. 2016. Water Consumption and Environmental Stress of Beef Cattle. Proceedings of the 5-State Beef Conference. Clayton, NM and Woodward, OK.

Richards, C. 2016. Research Update. Oklahoma Cowman. 1:22

Richards, C. 2016. Research Update. Oklahoma Cowman. 1:32

Richards, C. Questions about VFD’s? BeefExtension.com Facebook. Posted February 2016.

Richards, C. 2016. Research Update. Oklahoma Cowman. 3:32

Richards, C. 2016. Implant Usage Review. Oklahoma BQ A Newsletter. 2:3

Richards, C. 2016. Research Update. Oklahoma Cowman. 4:42.

Richards, C. 2016. Storm Dangers for Cattle. BeefExtension.com Facebook. Posted April 2016.

Richards, C. 2016. Research Update. Oklahoma Cowman. 5:38.

Richards, C. 2016. Research Update. Oklahoma Cowman. 6:36.

Richards, C. and A. Sutherland. Assessing Cattle for Heat Stress. BeefExtension.com Facebook. Posted June 2016.

Richards, C. Cattle Heat Stress Danger. BeefExtension.com Facebook. Posted June 2016.

Richards, C. 2016. Research Update. Oklahoma Cowman. 7:46.

Richards, C. Mineral Intake of cattle: New Tools. BeefExtension.com Facebook. Posted July 2016.

Richards, C. 2016. Research Update. Oklahoma Cowman. 8:22.

Richards, C. 2016. Research Update. Oklahoma Cowman. 9:32.

Richards, C. 2016. Research Update. Oklahoma Cowman. 10:32.

Richards, C. 2016. Research Update. Oklahoma Cowman. 11:26.

Richards, C. 2016. Research Update. Oklahoma Cowman. 12:46.

Richards, C., D. Lalman, G. Highfill, B. LeValley, and A. Sutherland. 2016. Mesonet Cattle Comfort Advisor Description. http://www.mesonet.org/images/site/Cattle_Comfort_Description.May2016.pdf

Rodenhuis, M. A., F. E. Keomanivong, J. J. Gaspers, M. L. Bauer, T. C. Gilbery, S. R. Underdahl, C. L. Engel, V. L. Anderson, and K. C. Swanson. 2016. The influence of grain source and dried corn distllers grains plus solubles oil concentration on finishing cattle performance and feeding behavior. North Dakota Beef Report. pp 32-35.

Rodenhuis, M. A., F. E. Keomanivong, M. L. Bauer, C. L. Engel, V. L. Anderson, and K. C. Swanson. 2016. Effect of grain type and dried distillers grain with solubles oil concentration on site of digestion. North Dakota Beef Report. pp 36-38.

Russell, J., E. Lundy, S. L. Hansen.  2016. Growth and Carcass Characteristics of Feed Efficiency Classified Cattle Fed Corn or Roughage-Based Diets and Finished with Corn or Byproduct-Based Diets. Iowa State University Animal Industry Report.

Rust, S. R. (2016, Winter). Can I improve net returns from feeding cattle by restricting intake? The Michigan Cattleman, 31(4).

Schoonmaker, J. 2016. Modification of ruminal digestion using eubiotics. High Plains Nutrition & Management Roundtable. Akron, CO. September 8, 2016. Pages 15-21.

Schwiehofer, J and S.R. Rust, (2016, Spring). What would you do differently without access to antibiotics?The Michigan Cattleman, 31(2).

Stokes, Rebecca S., Dan Loy and Stephanie Hansen. 2016. Effects of increased inclusion of algae meal on finishing steer performance and carcass characteristics.  Iowa State Univ. Anim. Industry Rep. ASL-R3059.

Swanson, K. C. 2016. Rumen efficiency: the next frontier for enhanced cattle performance. North Dakota Stockman. March. p 24.

Abstracts

Alkhurji, M. S. Vetter, K. C. Swanson, and E. P. Berg. 2016. Evaluation of glycated albumin as a metabolic marker for marbling in commercial feeder cattle. J. Anim. Sci. 99(Suppl. 1):68.

Andresen, C.E., E. L. Lundy, D. D. Loy and P.J. Gunn. 2016. Student assessment of curriculum efficacy in a beef systems management course. J. Anim. Sci. (Abstr. 1761)

Blank, C. P., J. R. Russell, S. M. Lonergan, and S. L. Hansen. 2016. Post-mortem proteolysis and meat tenderness in crossbred steers identified as lowly or highly feed efficient. J. Anim. Sci. 94 (Suppl. 3) (Abstr.) MS oral competition.

Blank, C. P., J. R. Russell, S. M. Lonergan, and S. L. Hansen. 2016. Influence of feed efficiency on meat tenderness attributes of beef steers: implications for the selection of improved feed efficiency.  Plains Nutrition Conference. San Antonio, TX. Pg. 101.

Blank, C. P., D. D. Loy, and S. L. Hansen. 2016. Effects of post-ethanol extraction sorghum silage as an alternative forage in growing and finishing diets on steer performance, carcass characteristics and nutrient digestibility. J. Anim. Sci. (Suppl. 2). Abstract 1418.

Blank, C. P., P. J. Gunn, D. Schrunk, S. Ensley, D. Madson, and S. L. Hansen. 2016. Effects of injectable trace mineral supplementation on yearling bull growth, carcass characteristics, testicular development and semen quality attributes. J. Anim. Sci. 94 (Suppl. 2). Abstract 244. 

Blom, E. J., D. W. Brake, M. R. Fiene, J. A. Walker, F. E. Keomanivong, and K. C. Swanson. 2016. Impact of metabolizable protein source on pancreatic enzyme activity in finishing cattle fed dry-rolled corn-based diets. J. Anim. Sci. 99(E-Suppl. 1):762.

Carvalho, P.H.V.. W.T. Meteer, A.R. Schroeder, A. DiCostanzo, and T.L. Felix. 2016. Enhancing the feeding value of corn residues to improve beef cattle production. J. Anim. Sci. 94 (E-Supple 2): 159.

Crane, A. R., R. R. Redden, K. C. Swanson, B. M. Howard, T. J. Frick, K. R. Maddock-Carlin, K. C. Swanson, and C. S. Schauer. 2016. Effects of dried distiller’s grains and lasalocid on feedlot lamb growth, carcass traits, nutrient digestibility, ruminal fluid volatile fatty acid concentrations, and ruminal hydrogen sulfide concentration. J. Anim. Sci. 99(E-Suppl. 1):1.

Deters, E. L., R. S. Stokes, O. N. Genther-Schroeder and S. L. Hansen. 2017. Effect of Original XPC in receiving diets on newly weaned beef steer performance. J. Anim. Sci. 95 (Suppl. 3) Abstract 107. MS Poster Competition.

Engel, C.L., V. L. Anderson, and K. C. Swanson. 2016. Influence of two fat levels of dry distiller’g grains in diets with corn or barley on growing and finishing feedlot and carcass performance of steers. J. Anim. Sci. 99(Suppl. 1):169.

Fontoura, A. B. P., F. E. Keomanivong, C. R. Dahlen, K. Ringwall, K. A. Vonnahme, L. L. H. Hanna, and K. C. Swanson. 2016. Plasma analyte concentrations of beef heifers diverging in frame size and known feed efficiency group.  J. Anim. Sci. 99(Suppl. 1):194.

Genther-Schroeder, O. N., E. Huff-Lonergan, M. E. Branine and S. L. Hansen. 2016. Influence of zinc amino acid complex and ractopamine hydrochloride supplementation on the sarcoplasmic protein profile of finishing steers. J. Anim. Sci. 94 (Suppl. 2) Abstract 880.

Genther-Schroeder, O. N., E. Huff-Lonergan, M. E. Branine and S. L. Hansen. 2016. Influence of zinc amino acid complex and ractopamine hydrochloride supplementation on the sarcoplasmic protein profile of finishing steers. FASEB Trace Elements in Biology and Medicine. Big Sky, MT.

Hansen, S. L. 2016. Adding a student-generated summary of main points to a lecture as a learning tool in an advanced nutrition course. J. Anim. Sci. 94 (Suppl. 2) Abstract 1748.

Hansen, S. L., M. S. Kerley, and J. R. Russell. 2017. Impact of diet type on repeatability of feed efficiency in beef cattle. J. Anim. Sci. 95 (Suppl. 3) Abstract 333. Invited.

Hartman, S. J., O. N. Genther-Schroeder, and S. L. Hansen. 2016. Effect of micronutrient source on mineral status and performance of steers fed low or high sulfur diets. J. Anim. Sci. 94 (Suppl. 2) Abstract 1532.

Hartman, S. J., O. N. Genther-Schroeder, and S. L. Hansen. 2017. Comparison of trace mineral repletion strategies to overcome a high antagonist diet. J. Anim. Sci. 95 (Suppl. 3) Abstract 355.

Keomanivong, F. E., M. C. Ruch, J. D. Kirsch, C. R. Dahlen, M. L. Bauer, and K. C. Swanson. 2016. Influence of dry-rolled corn processing and distillers grain inclusion rate on ruminal digestive enzyme activity. J. Anim. Sci. 99(Suppl. 1):156.

Koskan, O., H. Koknaroglu, D.D. Loy and M.P. Hoffman. 2016. Determination of suitable sample size and number of simulation for predicting dry matter intake of feedlot cattle. J. Anim. Sci. 94, Suppl. 2 (Abstr. 58).

Kuehl, C. R., A. B. P. Fontoura, F. E. Keomanivong, C. R. Dahlen, K. Ringwall, K. A. Vonnahme, L. L. H. Hanna, and K. C. Swanson. 2016. Relationship of frame size and body measurements with feed efficiency traits in heifers. J. Anim. Sci. 99(Suppl. 1):194.

Lancaster, N.A., D.S. Antonelo, C.R. Muegge, and J.P. Schoonmaker. 2016. Effect of saponite on toxin binding capacity, ruminal fermentation, diet digestibility and growth of steers fed high concentrate diets. J. Anim. Sci. 94(E-Suppl. 5):641. (poster presentation).

Lancaster, N.A., J.A. Tekippe, M.C. Claeys, and J.P. Schoonmaker. 2016. Effect of ruminal bypass lysine on amino acid status, performance and carcass characteristics of steers fed corn product based diets. J. Anim. Sci. 94(E-Suppl. 5):765. (poster presentation)

Long, C.J. H.H. Stein, and T.L. Felix. 2017. Effects of exogenous phtase supplementation and dietary phosphorous concentration on metabolism and digestibility of beef cattle. J. Anim. Sci. 95 (E-Suppl. 2)

Michal, J. J., J. R. Russell, S. L. Hansen, J. F. Taylor, M. S. Kerley, U. S. Feed Efficiency Consortium and K. A. Johnson. 2016. NADH dehydrogenase (ubiquinone) Fe-S protein-1 (NDUFS1), a core subunit of mitochondrial complex I, is not differentially expressed in peripheral blood mononuclear cells of beef steers with divergent residual feed intakes. J. Anim. Sci. 94 (Suppl. 2) Abstract 1483.

Nenn, K., P.H.V. Carvalho, E. Mousel, G.A. Bridges, S.L. Bird, T.L. Felix, and A. DiCostanzo. 2016. Improving the feeding value of corn stover to enhance cattle performance in a backgrounding phase. J. Anim. Sci. 93(E-Suppl. 2)

Niedermayer, E. K. O. N. Genther-Schroeder, and S. L. Hansen. 2016. Effect of a zinc injection on finishing performance and carcass characteristics of Limousin steers. J. Anim. Sci. 94 (Suppl. 3) (Abstr.).

Niedermayer, E. K., O. N. Genther-Schroeder, and S. L. Hansen. 2016. Evaluating the effects of an injectable trace mineral product on steers raised in a natural beef feedlot program. J. Anim. Sci. 94 (Suppl. 2) Abstract 1376.

Oliveira, C.V., M.M. Ladeira, O.R. Machado Neto, D.R. Casagrande, L. Ruiz, J.R.R. Carvalho, J.P. Schoonmaker, and A.C. Rodrigues. 2016. Fatty acid profile and gene expression of lipogenic transcription factors in the muscle of Nellore bulls fed processed soybean. J. Anim. Sci. 94(E-Suppl. 5):427. (poster presentation)

Reis, A., R. Ostrem, K. Heiderscheit, O. Genther-Schroeder, C. Clark, D. Loy and S. L. Hansen. 2016. Evaluation of perennial switchgrass as a replacement for cornstalks in high sulfur beef cattle diet. J. Anim. Sci. 94 (Suppl. 3) (Abstr.) Undergraduate poster competition-2^nd place.

Rodenhuis, M. A., F. E. Keomanivong, J. J. Gaspers, T. C. Gilbery, S. R. Underdahl, M. L. Bauer, V. L. Anderson, C. L. Engel, and K. C. Swanson. 2016. The influence of grain source and dried corn distiller’s grains plus solubles oil concentration on finishing cattle performance and feeding behavior. J. Anim. Sci. 99(Suppl. 1):166.

Russell, J. R., E. L. Lundy, N. O. Minton, W. J. Sexten, M. Kerley and S. L. Hansen. 2016. Influence of growing phase feed efficiency classification on finishing phase growth performance and carcass characteristics of beef steers fed different diet types. J. Anim. Sci. 94 (Suppl. 3) (Abstr.) PhD poster competition-2^nd place.

Sena, M.H., T.L. Felix, W.T. Meteer, and D.W. Shike. 2016 Effects of co-ensiling high moisture corn stover with co-products on spoilage, aerobic stability, nutrient composition, and in situ digestibility. J. Anim. Sci. 93(E-Suppl. 2)

Singh, P., R.E. Mosci, C. Venegas-Vargus, K. Hussnaetter, H. Selheimer, K. Jernigan, J. Rudrik, G.  Loneragan, J.A. Funk, B. Norby, S.R.  Rust, P.C.  Bartlett,  D.L. Grooms, and S.D.  Manning. (2016). Characteristics of Shiga toxin producing Escherichia coli (STEC) isolates recovered from dairy and beef cattle in Michigan. US Department of Agriculture. July 25, 2016.

Taylor, J. F., J. E. Beever, J. E. Decker, H. C. Freetly, D. J. Garrick, S. L. Hansen, K. A. Johnson, M. S. Kerley, D. D. Loy, H. L. Neibergs, M. Saatchi, R. D. Schnabel, C. M. Seabury, D. W. Shike, M. L. Spanger and R. L. Weaber. 2017. The genetic improvement of feed efficiency in beef cattle. J. Anim. Sci. 95 (Suppl. 3) Abstract 331. Invited.