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Kansas Agricultural Experiment Station Research Reports

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Limit-Fed, High-Energy Diets Can Achieve Improved Feed Conversion Rates Without Compromising Rate Of Gain When Compared To Conventional High Roughage Diets, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, A. J. Tarpoff, E. C. Titgemeyer, L. Allen, T. G. O'Quinn, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Limit-Fed, High-Energy Diets Can Achieve Improved Feed Conversion Rates Without Compromising Rate Of Gain When Compared To Conventional High Roughage Diets, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, A. J. Tarpoff, E. C. Titgemeyer, L. Allen, T. G. O'Quinn, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Compare and determine the effects on animal performance between a conventional high roughage diet and a limit-fed, high energy diet during the receiving and growing phase.

Study Description: Crossbred heifer calves (n = 418) originating from Texas and New Mexico were used to determine performance when limit-fed a high energy diet initially offered at 85% of feed intakes from cattle fed a conventional high roughage diet ad libitum at the Kansas State University Beef Stocker Unit.

The Bottom Line: Limit-feeding a high energy diet consisting primarily of dry-rolled corn and Sweet Bran (Cargill Animal Nutrition, Blair, NE) can improve rate ...


Effects Of Choline On Neutrophil Function And Inflammation In Growing Cattle With Modulated Methyl Group Status, M. S. Grant, H. D. Aufdemberge, B. J. Bradford, L. K. Mamedova, E. C. Titgemeyer Jan 2021

Effects Of Choline On Neutrophil Function And Inflammation In Growing Cattle With Modulated Methyl Group Status, M. S. Grant, H. D. Aufdemberge, B. J. Bradford, L. K. Mamedova, E. C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Objective: This study was conducted to evaluate the effects of supplemental choline in combination with guanidinoacetic acid or creatine on immune cell function and inflammation in growing cattle.

Study Description: Six ruminally-cannulated Holstein steers (321 lb) were utilized in an experiment where each steer received each of six treatments. Treatments were given via abomasal infusion of a 0 or 5 g/day of supplemental choline, and either a saline solution (control); 15 g/day guanidinoacetic acid; or 16.8 g/day of creatine, with all treatment combinations represented. Steers were fed a corn-based diet. Blood was collected during each period ...


Differences In Rumination And Animal Activity Can Be Quantified By Utilizing New Technologies, M. A. Scilacci, A. J. Tarpoff, E. C. Titgemeyer, T. G. O'Quinn, T. Jennings, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Differences In Rumination And Animal Activity Can Be Quantified By Utilizing New Technologies, M. A. Scilacci, A. J. Tarpoff, E. C. Titgemeyer, T. G. O'Quinn, T. Jennings, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Utilizing new technologies such as Allflex eSense Ear Tags to (Allflex Livestock Intelligence, Madison, WI) evaluate the impacts of limit feeding a high-energy diet in the backgrounding phase on daily rumination and activity in growing cattle.

Study Description: This project was conducted in conjunction with the performance backgrounding study at the Kansas State University Beef Stocker Unit in 2019. Crossbred heifers (n = 418) were outfitted with an ear tag that measured rumination and activity throughout the day and the 84-day backgrounding study. This data was continuously collected via an onsite antenna, downloaded to a computer, and analyzed in a ...


Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer, D. A. Ruiz Diaz Jan 2021

Nitrogen Fertilizer Timing And Phosphorus And Potassium Fertilization Rates For Established Endophyte-Free Tall Fescue, D. W. Sweeney, J. K. Farney, J. L. Moyer, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Tall fescue production was measured during the third production year of a study with locations started in fall of 2016 and fall of 2017. Phosphorus (P) fertilization rate af­fected spring harvest yield at Site 1, but not at Site 2. Applying nitrogen (N) in late fall or late winter resulted in greater spring yields than applying N in spring or not applying N. However, fall harvest yields at Site 1 were greater with spring N application, but not at Site 2. The third-year tall fescue total yield rank as affected by N fertilizer timing was late winter>late fall ...


Yearling Cattle Grazing Pastures Burned During Summer Perform Similarly To Cattle Grazing Pastures Burned In Early Spring: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson Jan 2021

Yearling Cattle Grazing Pastures Burned During Summer Perform Similarly To Cattle Grazing Pastures Burned In Early Spring: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to evaluate the impact of prescribed fire timing on grazing performance of yearling beef cattle in the Kansas Flint Hills.

Study Description: This study was conducted at the Kansas State University Beef Stocker Unit. Yearling stocker cattle were assigned randomly to one of three prescribed-burn treatments: spring (April 7 ± 2.1 days), summer (August 21 ± 5.7 days), or fall (October 2 ± 9.9 days) and grazed from May to August of 2019 and 2020. Individual body weights were recorded at the beginning and end of the grazing season to determine total body weight gain and ...


Relationships Among Terminal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde Jan 2021

Relationships Among Terminal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the influence of terminal traits in the form of selection indices and expected progeny differences on the sale price of Red Angus Bulls sold at auction from 2017 through 2019 across the United States.

Study Description: Information describing factors about Red Angus bulls marketed through auctions were obtained from the Red Angus Association of America (Commerce City, CO) in an electronic format. Data were collected for 21,362 Red Angus bulls offered for sale from 2017 through 2019. Multiple regression models were developed using backward selection procedures to examine the effect ...


Effects Of Late Summer Prescribed Fire On Botanical Composition, Soil Cover, And Forage Production In Caucasian Bluestem-Infested Rangeland In The Kansas Smoky Hills: Year 2 Of 4, M. P. Ramirez, A. J. Tajchman, Z. M. Duncan, J. Lemmon, K C. Olson Jan 2021

Effects Of Late Summer Prescribed Fire On Botanical Composition, Soil Cover, And Forage Production In Caucasian Bluestem-Infested Rangeland In The Kansas Smoky Hills: Year 2 Of 4, M. P. Ramirez, A. J. Tajchman, Z. M. Duncan, J. Lemmon, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to document the effects late-summer prescribed fire on soil cover, botanical composition, and forage production in the Kansas Smoky Hills and the associated effects on dense Caucasian bluestem (Bothriochloa bladhii) stands therein.

Study Description: The study took place on a private ranch in Ellsworth County, in the Kansas Smoky Hills. Eighteen one-acre plots were assigned randomly to one of three prescribed-fire treatments: no burn, single burn (i.e., one burn treatment only in 2019), or biennial burn (i.e., two burn treatments in 2019 and 2021). Soil cover, plant composition, and forage production were evaluated annually ...


Managing The Intake Of Mineral Supplements That Contain Feed Additives For Beef Calves Grazing Flint Hills Native Grass Pasture Is Important, R. L. Allison, Z. M. Duncan, C. E. Schneider, W. R. Hollenbeck, K. J. Suhr, B. J. Dedrickson, D. A. Blasi Jan 2021

Managing The Intake Of Mineral Supplements That Contain Feed Additives For Beef Calves Grazing Flint Hills Native Grass Pasture Is Important, R. L. Allison, Z. M. Duncan, C. E. Schneider, W. R. Hollenbeck, K. J. Suhr, B. J. Dedrickson, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the efficacy of mineral supplementation programs that provide a performance-enhancing antibiotic for improving growth of stocker calves grazing native grass pastures in the Flint Hills region of Kansas.

Experimental Procedures: A 91-day grazing study was conducted at the Kansas State University Beef Stocker Unit starting in May 2020 utilizing 314 Brahman influenced crossbred steers (739.57 ± 10.54 lb) from Gorman, TX. Steers were randomized and allocated across 18 pastures and randomly assigned to three treatments groups with six replications (paddocks) per group. The treatments assessed consisted of standard free-choice mineral ...


Subsequent Carcass Merit Of Feedlot Cattle May Be Improved By Limit Feeding A High-Energy Diet During The Backgrounding Phase, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, T. G. O'Quinn, A. J. Tarpoff, E. C. Titgemeyer, K. Montgomery, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi Jan 2021

Subsequent Carcass Merit Of Feedlot Cattle May Be Improved By Limit Feeding A High-Energy Diet During The Backgrounding Phase, M. A. Scilacci, M. A. Johnson, C. E. Hissong, S. P. Montgomery, T. G. O'Quinn, A. J. Tarpoff, E. C. Titgemeyer, K. Montgomery, G. T. Tonsor, C. I. Vahl, D. U. Thomson, W. R. Hollenbeck, D. A. Blasi

Kansas Agricultural Experiment Station Research Reports

Objective: Determine and analyze the impact of limit feeding a high-energy diet in the backgrounding phase, primarily based on dry-rolled corn and Sweet Bran (Cargill Animal Nutrition, Blair, NE), on animal performance in the finishing phase and carcass merit.

Study Description: This project was a continuation of the performance backgrounding study previously conducted at the Kansas State University Beef Stocker Unit. All cattle were shipped to Pratt Feeders (Pratt, KS) on August 26–27, 2019, and were fed in four separate feed groups (approximately 100 head/pen) according to standard operating practices at the feed yard. Original backgrounding treatment integrity ...


Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao Jan 2021

Investigating The Contribution Of Mature Collagen Crosslinks To Cooked Meat Toughness Using A Stewed Beef Shank Model, W. Wu, A. A. Welter, C. K. Chun, T. G. O'Quinn, G. Magnin-Bissel, M. D. Chao

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to investigate mature collagen crosslink densities and their relationship to connective tissue texture using a stewed beef shank model.

Study Description: Connective tissue texture, Warner-Bratzler shear force, and collagen content and characteristics were measured for six different beef shank cuts from eight U.S. Department of Agriculture Low Choice beef carcasses (n = 48).

Results: Deep digital flexor from the foreshank had the toughest connective tissue texture, greatest Warner-Bratzler shear force value, most cooked collagen content, one of the greatest insoluble collagen percentages, as well as greatest raw and cooked pyridinoline densities among all ...


Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn Jan 2021

Comparison Of The Physical Attributes Of Plant-Based Ground Beef Alternatives To Ground Beef, K. M. Harr, S. G. Davis, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the physical attributes of three different plant-based, ground beef alternatives in comparison to ground beef of three different fat percentages.

Study Description: Ground beef of three different fat percentages, a retail pea protein-based ground beef alternative, and a traditional soy-based ground beef alternative were obtained from retail stores (n = 15 lots/treatment). Samples from 15 lots of a foodservice soy protein-based ground beef alternative were obtained from a foodservice chain. All samples were fabricated into 0.25 lb patties assigned to one of four assays: color analysis, texture profile analysis, shear ...


Evaluation Of Implants, Clover, And Fescue Variety On Stocker Steers, Z. T. Buessing, J. K. Farney Jan 2021

Evaluation Of Implants, Clover, And Fescue Variety On Stocker Steers, Z. T. Buessing, J. K. Farney

Kansas Agricultural Experiment Station Research Reports

Sixty-four growing steers were used in a split-plot experiment, where the whole plot was pasture, and the split-plot was implants. Whole plot treatment was a 4 × 2 facto­rial with four levels of fescue (High Endophyte, Low Endophyte, Novel, or Endophyte Free) and two levels of legume (Legumes or No Legumes). The split-plot included four implant levels (No Implant, Synovex One Grass, Revalor-G, Ralgro). Data collected were weights, hair coat scores, hair length, rectal temperature (every 28 days), and ultrasound carcass characteristics coming off grass. Steers on High Endophyte had the lowest average daily gain (ADG), longest hair, and highest ...


Form Of Supplement And Addition Of Ionophore Effects On Steer Performance While Grazing Bromegrass And Subsequent Effects In Feedlot And Carcass Measures, J. K. Farney, K. Malone Jan 2021

Form Of Supplement And Addition Of Ionophore Effects On Steer Performance While Grazing Bromegrass And Subsequent Effects In Feedlot And Carcass Measures, J. K. Farney, K. Malone

Kansas Agricultural Experiment Station Research Reports

Stocker steers were grazed on bromegrass from April to the end of August and were supplemented with several different forms of products. Treatment structure was a 2 × 2 + 2 factorial (six total treatments). Treatments evaluated included mineral only; free-choice supplementation in the form of liquid feed (MIX30) or block format (Mintrate); hand-fed supplement of corn:dried distillers grains at 0.25% of body weight on a dry matter basis offered three times per week; and ionophore (Rumensin) was included in one block and hand-fed supplement. Steers were weighed every 28 days while on grass and in the feedlot. Steers were ...


Bermudagrass Fertility Trial In Southeast Kansas, 2020, D. Helwig, M. Haywood, J. K. Farney, B. C. Pedreira, G. F. Sassenrath Jan 2021

Bermudagrass Fertility Trial In Southeast Kansas, 2020, D. Helwig, M. Haywood, J. K. Farney, B. C. Pedreira, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

In 2020 a bermudagrass fertility study was conducted at the K-State Research and Ex­tension experiment station outside of Columbus, KS. The purpose of the study was to simulate forage producer practices of managing bermudagrass and determine how each practice affects forage production and quality. Addition of fertilizer, and mowing were tested to determine the impact on forage biomass production and quality. Fertilizer increased both biomass production and forage quality. However, greater improvements in forage quality were observed by mowing the bermudagrass.


Southeast Kansas Wheat Variety Test Results - 2020, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin Jan 2021

Southeast Kansas Wheat Variety Test Results - 2020, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the winter wheat production conditions in southeast Kansas in 2019-2020 and the results of the variety testing. Fifteen hard red and ten soft red winter wheat varieties were compared for yield and test weight. High spring rainfall increased disease pressure; cultivars were rated for Fusarium head blight and stripe rust. Average yield of hard red wheat varieties was above average at 81.1 bu/acre across all varieties. Soft red wheat yield was 102.4 bu/acre across all varieties. For comparison, previous variety yield results are reported from 2016, 2017, and 2018.


Crop Production 2020 – Corn, Sorghum, Soybean, And Sunflower Variety Testing, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin Jan 2021

Crop Production 2020 – Corn, Sorghum, Soybean, And Sunflower Variety Testing, G. F. Sassenrath, L. Mengarelli, J. Lingenfelser, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the variety testing for corn, sorghum, soybean, and sunflower. Nine corn varieties were tested in 2020, with an average yield of 107.6 bu/a. Twenty-four cultivars of soybeans from maturity groups (MG) 3-4 and twenty-seven cultivars from MG4-5 were tested in both full-season and double-cropped management. Full-season beans yielded an average of 54.5 bu/a for MG3-4 and 58.8 bu/a for MG4-5, which was greater than the average yields in the double-cropped beans at 32 bu/a for MG3-4 and 40.5 bu/a for MG4-5. The state-wide average soybean yield ...


Annual Summary Of Weather Data For Parsons - 2020, M. Knapp Jan 2021

Annual Summary Of Weather Data For Parsons - 2020, M. Knapp

Kansas Agricultural Experiment Station Research Reports

This report includes the annual summary of precipitation and temperatures from 2020 at the research locations represented in the 2020 Southeast Research and Extension Center Agricultural Research Report.


Relationships Among Maternal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde Jan 2021

Relationships Among Maternal Traits And Sale Prices Of Red Angus Bulls Sold At Auction From 2017 Through 2019, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to evaluate the influence of maternal traits in the form of selection indices and expected progeny differences on the sale price of Red Angus Bulls sold at auction from 2017 through 2019 across the United States.

Study Description: Information describing factors about Red Angus bulls marketed through auctions were obtained from the Red Angus Association of America (Commerce City, CO) in an electronic format. Data were collected for 21,362 Red Angus bulls offered for sale in auctions from 2017 through 2019. Multiple regression models were developed using backward selection procedures to examine ...


The Effect Of Method Of Collection And Number Of Sequential Ejaculates On Semen Characteristics Of Beef Bulls, A. R. Hartman, M. L. Butler, S. K. Tucker, N. M. Goodenow, J. M. Bormann, D. M. Grieger Jan 2021

The Effect Of Method Of Collection And Number Of Sequential Ejaculates On Semen Characteristics Of Beef Bulls, A. R. Hartman, M. L. Butler, S. K. Tucker, N. M. Goodenow, J. M. Bormann, D. M. Grieger

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine the effect of collection method and number of sequential ejaculates on beef bull ejaculate characteristics.

Study Description: Semen collection data from 2008 to 2018 was obtained from the Kansas Artificial Breeding Services Unit and consisted of 11,642 ejaculates from 906 bulls. Bulls were collected twice weekly on Mondays and Thursdays with an artificial vagina. Bulls not receptive to the artificial vagina were subject to electro-ejaculation. A single technician was responsible for all pre-freeze and post-thaw semen analysis. Ejaculates were required to meet quality standards.

Results: Progressive motility before freezing was ...


Impact Of Fungicide On Wheat, G. F. Sassenrath, H. Zhao, X. Lin Jan 2021

Impact Of Fungicide On Wheat, G. F. Sassenrath, H. Zhao, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a report of research to test the impact of fungicide and management on wheat yield and quality. Fusarium head blight (FHB), or scab, is a persistent problem in wheat production, especially in high rainfall areas such as eastern Kansas. Two cultivars of winter wheat varying in FHB sensitivity (Everest, moderately resistant, and KanMark, susceptible) were tested for control of FHB using fungicide treatments made to the seed prior to planting or to the wheat plant at heading, in tilled or no-tilled management. The wet spring of 2020 resulted in high FHB pressure, but dry conditions at harvest re ...


Using Cover Crops To Suppress Weeds And Improve Soil Health, J. A. Dille, L. I. Chism, G. F. Sassenrath Jan 2021

Using Cover Crops To Suppress Weeds And Improve Soil Health, J. A. Dille, L. I. Chism, G. F. Sassenrath

Kansas Agricultural Experiment Station Research Reports

Herbicide-resistant weeds are creating challenges for producers to control weeds in crop fields. This study explores the potential of cover crops to reduce weed pressure and im­prove soil health. Cover crops were planted after corn harvest in tilled and no-till fields, and included Graza radish, winter wheat, annual ryegrass, spring oats, winter oats, and forage collards. The control was fallow with herbicide application but no cover crop. Soil health was determined prior to cover crop termination. Graza radish and forage collards did not grow consistently in all plots due to poor germination and winter kill. Significant weed biomass was ...


Effect Of Trucking Distance On Sale Price Of Beef Calf And Feeder Cattle Lots Sold Through Video Auctions From 2010 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. J. Smith, G. M. Rogers, K. G. Odde Jan 2021

Effect Of Trucking Distance On Sale Price Of Beef Calf And Feeder Cattle Lots Sold Through Video Auctions From 2010 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. J. Smith, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to determine effect of trucking distance on sale price of beef calf and feeder cattle lots sold through Superior Livestock Video Auctions from 2010 through 2018.

Study Description: Data analyzed were collected from 211 livestock video auctions that included 42,043 beef calf and 19,680 feeder cattle lots delivered to 6 states (Colorado, Iowa, Kansas, Nebraska, Oklahoma, and Texas). Multiple regression models were used to evaluate the effect of factors, with trucking distance of main interest, on sale price of lots. Based on reported states of origin and delivery, lots were categorized into one of ...


Trends In The Percentage Of Doses Of Modified Live, Killed, And Combination Respiratory Viral Vaccines Administered To Beef Calves Offered For Sale In Summer Video Auctions From 2000 Through 2018, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde Jan 2021

Trends In The Percentage Of Doses Of Modified Live, Killed, And Combination Respiratory Viral Vaccines Administered To Beef Calves Offered For Sale In Summer Video Auctions From 2000 Through 2018, M. J. Smith, K. E. Fike, M. E. King, E. D. Mccabe, G. M. Rogers, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of the study was to identify trends in the percentage of doses of modified live, killed, and combination respiratory viral vaccines administered to lots of beef calves.

Study Description: Nineteen years of data (2000–2018) from a livestock video auction service (Superior Livestock Auction, Fort Worth, TX) were analyzed to quantify trends in percentage of doses of respiratory viral vaccine administered to beef calves. Named respiratory viral vaccines were classified into three groups based on the antigens they contained: all modified live antigens, all killed antigens, and combination of modified live and killed antigens. The Cochran-Armitage Trend ...


Carcass Trait Trends For Steers And Heifers Finished Through The Tri-County Steer Carcass Futurity Cooperative From 2002 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. Groves, K. G. Odde Jan 2021

Carcass Trait Trends For Steers And Heifers Finished Through The Tri-County Steer Carcass Futurity Cooperative From 2002 Through 2018, E. D. Mccabe, M. E. King, K. E. Fike, M. Groves, K. G. Odde

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to evaluate trends in carcass characteristics for steers and heifers finished through the Tri-County Steer Carcass Futurity Cooperative.

Study Description: Data analyzed included 74,207 steers and 33,529 heifers finished at the Tri-County Steer Carcass Futurity Cooperative (Lewis, IA) and harvested from 2002 through 2018. Steers and heifers were harvested at liveweights of 1,235.0 +/- 119.8 lb and 1,124.2 +/- 106.7 lb, respectively. Carcass trait trends evaluated for steers and heifers included calculated yield grade score, backfat thickness, hot carcass weight, kidney, pelvic, heart, fat percentage, marbling score, and ribeye area ...


Effects Of Guanidinoacetic Acid, Creatine, And Choline On Protein Deposition And Creatine Status In Growing Cattle, M. S. Grant, M. D. Miesner, E. C. Titgemeyer Jan 2021

Effects Of Guanidinoacetic Acid, Creatine, And Choline On Protein Deposition And Creatine Status In Growing Cattle, M. S. Grant, M. D. Miesner, E. C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Objective: This study was conducted to evaluate effects of guanidinoacetic acid and creatine supplementation in the presence or absence of supplemental choline on body creatine status and lean tissue growth.

Study Description: Six ruminally-cannulated Holstein steers (321 lb) were utilized in an experiment consisting of six 10-day periods, where each steer received one of six treatments in each period. Treatments were abomasal infusion of a saline solution (control), 15 g/day guanidinoacetic acid, or 16.8 g/day creatine, in combination with 0 or 5 g/day choline, with all treatment combinations represented. Complete collection of urine and feces was ...


Consumer Sensory Evaluation Of Plant-Based Ground Beef Alternatives In Comparison To Ground Beef Of Various Fat Percentages, S. G. Davis, K. M. Harr, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, D. A. Blasi, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn Jan 2021

Consumer Sensory Evaluation Of Plant-Based Ground Beef Alternatives In Comparison To Ground Beef Of Various Fat Percentages, S. G. Davis, K. M. Harr, S. B. Bigger, D. U. Thomson, M. D. Chao, J. L. Vipham, M. D. Apley, D. A. Blasi, S. M. Ensley, M. D. Haub, M. D. Miesner, A. J. Tarpoff, K C. Olson, T. G. O'Quinn

Kansas Agricultural Experiment Station Research Reports

Objective: The objective of this study was to determine if current plant-based protein ground beef alternatives offer similar palatability characteristics to ground beef patties of varying fat percentages.

Study Description: Fifteen different production lots (n = 15/fat level) of 3 lb ground beef chubs of three different fat levels (10%, 20%, and 30%) were collected from retail markets in the Manhattan, KS, area. Additionally, alternative products including a soy and potato protein-based foodservice ground beef alternative, a pea protein-based retail ground beef alternative, and a traditional soy protein-based ground beef alternative, (n = 15 production lots/product) currently available through commercial ...


Effect Of Burning And Tillage Options On Yields In A Continuous Wheat-Double-Crop Soybean Rotation, D. W. Sweeney, D. R. Presley, D. A. Ruiz Diaz Jan 2021

Effect Of Burning And Tillage Options On Yields In A Continuous Wheat-Double-Crop Soybean Rotation, D. W. Sweeney, D. R. Presley, D. A. Ruiz Diaz

Kansas Agricultural Experiment Station Research Reports

Double-cropping soybeans after wheat is common in southeastern Kansas and yields of double-crop soybean during the three years of this study were not affected by manage­ment of previous wheat straw practices such as burning or tillage done before plant­ing. However, in the second and third year of the study, subsequent wheat yields were increased by 30% or more when the wheat residue had been burned the previous year.


Southeast Kansas Weather Summary - 2020, G. F. Sassenrath, M. Knapp, X. Lin Jan 2021

Southeast Kansas Weather Summary - 2020, G. F. Sassenrath, M. Knapp, X. Lin

Kansas Agricultural Experiment Station Research Reports

This is a summary of the weather conditions in southeast Kansas during the 2019/2020 growing season. The wet weather pattern that began in 2019 continued into the spring of 2020, creating adverse conditions for spring crop establishment. Dry conditions dur­ing the summer and fall limited crop and pasture production. Temperatures were very near the 10-year averages at each location.


Effects Of Prescribed Fire Timing On Native Plant Composition, Forage Biomass Accumulation, And Root Carbohydrate Reserves In The Kansas Flint Hills: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson Jan 2021

Effects Of Prescribed Fire Timing On Native Plant Composition, Forage Biomass Accumulation, And Root Carbohydrate Reserves In The Kansas Flint Hills: Year 2 Of 6, Z. M. Duncan, A. J. Tajchman, M. P. Ramirez, J. Lemmon, W. R. Hollenbeck, D. A. Blasi, K C. Olson

Kansas Agricultural Experiment Station Research Reports

Objective: The objective was to document the effects of prescribed fire timing on native plant composition, forage biomass, and root carbohydrate concentrations in key native tallgrass species in the Kansas Flint Hills.

Study Description: This experiment was conducted at the Kansas State University Beef Stocker Unit. Eighteen pastures were grouped by watershed and assigned to one of three prescribed-burn treatments: spring (April 7 ± 2.1 days), summer (August 21 ± 5.7 days), or fall (October 2 ± 9.9 days). Botanical composition, forage biomass, and root carbohydrate concentrations in big bluestem, little bluestem, Indian grass, and purple prairie clover were evaluated ...


A Preliminary Investigation Of The Contribution Of Different Tenderness Factors To Beef Loin, Tri-Tip, And Heel Tenderness, C. K. Chun, W. Wu, A. A. Welter, T. G. O'Quinn, G. Magnin-Bissel, D. L. Boyle, M. D. Chao Jan 2021

A Preliminary Investigation Of The Contribution Of Different Tenderness Factors To Beef Loin, Tri-Tip, And Heel Tenderness, C. K. Chun, W. Wu, A. A. Welter, T. G. O'Quinn, G. Magnin-Bissel, D. L. Boyle, M. D. Chao

Kansas Agricultural Experiment Station Research Reports

Objective: The objective is to better understand the contribution of each tenderness factor to the perception of tenderness of three specific beef muscles with similar tenderness ratings.

Study Description: Longissimus lumborum (loin), tensor fascia latae (tri-tip), and gastrocnemius (heel) were collected from 10 U.S. Department of Agriculture low Choice beef carcasses and assigned to a 5- or 21-day aging period (n = 60). Steaks from each aging period from each subprimal were assigned to one of three assays: 1) trained sensory analysis; 2) objective tenderness evaluation (Warner-Bratzler shear force); or 3) physiochemical analysis (sarcomere length, proteolysis, intramuscular fat content, collagen ...