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Veterinary Medicine Commons™

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2018

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Articles 151 - 180 of 341

Full-Text Articles in Veterinary Medicine

Effect Of Backgrounding System On Performance And Profitability Of Yearling Beef Steers, Cody A. Welchons, Robby G. Bondurant, F. Henry Hilscher Hilscher, Andrea K. Watson, Galen E. Erickson, Jim C. Macdonald Jan 2018

Effect Of Backgrounding System On Performance And Profitability Of Yearling Beef Steers, Cody A. Welchons, Robby G. Bondurant, F. Henry Hilscher Hilscher, Andrea K. Watson, Galen E. Erickson, Jim C. Macdonald

Nebraska Beef Cattle Reports

Five summer management strategies were compared following grazing corn residue through winter. Cattle were assigned to be 1) summer finished, 2) graze bromegrass, 3) graze bromegrass and fed distillers grains at 0.6% of BW, 4) backgrounded in a drylot pen to gain 1.70 lb/d, or 5) backgrounded in a drylot pen to gain 2.35 lb/d. Results differed by year, however, in general as backgrounding ADG increased, days required on feed to reach an equal fat endpoint decreased. In year 1, ADG of cattle grazing bromegrass was less than cattle backgrounded in pens. There was no difference in finishing ADG for …

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Effect Of Continuous Or Rotational Grazing On Growing Steer Performance And Land Production, Cody A. Welchons, Robby G. Bondurant, F. Henry Hilscher Hilscher, Terry J. Klopfenstein, Andrea K. Watson, Jim C. Macdonald Jan 2018

Effect Of Continuous Or Rotational Grazing On Growing Steer Performance And Land Production, Cody A. Welchons, Robby G. Bondurant, F. Henry Hilscher Hilscher, Terry J. Klopfenstein, Andrea K. Watson, Jim C. Macdonald

Nebraska Beef Cattle Reports

Individual animal performance and animal production per acre were evaluated for steers grazing smooth bromegrass over 2 consecutive years. Treatments consisted of steers continuously grazing smooth bromegrass and initially stocked at either 4.0 animal unit months (AUM)/ac (HI) or 2.8 AUM/ac (LO) or steers rotationally grazing smooth bromegrass and initially stocked at 4.0 AUM/ac (ROT). Average calculated stocking rate for the LO, HI, and ROT treatments was greater than initial stocking rates due to the use of put and take animals. In vitro organic matter digestibility and crude protein of rotationally grazed pastures was relatively constant as the grazing season …

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Effects Of Movement And Activity Behavior In A Pasture System Compared To Time, Jace R. Stott, Mitchell B. Stephenson, Kathryn J. Hanford Hanford Jan 2018

Effects Of Movement And Activity Behavior In A Pasture System Compared To Time, Jace R. Stott, Mitchell B. Stephenson, Kathryn J. Hanford Hanford

Nebraska Beef Cattle Reports

During the summer of 2016 seventeen cows were fitted with Global Positioning System (GPS) tracking collars to evaluate activity characteristics of cattle on rangelands. Data collected included daily distance traveled, average distance from water, daily time spent at water, daily area covered, and percent of day spent active (traveling or grazing). These variables were analyzed weekly to assess changes in behavior as time within pastures increased during three time periods of the growing season. Based on data collected from mid-May to mid-September, cattle showed little changes throughout the grazing season as to levels of activity through different periods of a …

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Statistics Used In The Nebraska Beef Report And Their Purpose Jan 2018

Statistics Used In The Nebraska Beef Report And Their Purpose

Nebraska Beef Cattle Reports

The purpose of beef cattle and beef product research at UNL is to provide reference information that represents the various populations (cows, calves, heifers, feeders, carcasses, retail products, etc) of beef production. Obviously, the researcher cannot apply treatments to every member of a population; therefore he/ she must sample the population. The use of statistics allows the researcher and readers of the Nebraska Beef report the opportunity to evaluate separation of random (chance) occurrences and real biological effects of a treatment. Following is a brief description of the major statistics used in the beef report. For a more detailed description …

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Impact Of Winter Supplementation Of May Calving Cows And Heifer Development System In Two Different Breeding Seasons On Subsequent Growth And Reproduction, Shelby A. Springman, Alicia C. Lansford, Jacqueline A. Musgrave Musgrave, John Nollette, Andy Applegarth, Richard N. Funston Jan 2018

Impact Of Winter Supplementation Of May Calving Cows And Heifer Development System In Two Different Breeding Seasons On Subsequent Growth And Reproduction, Shelby A. Springman, Alicia C. Lansford, Jacqueline A. Musgrave Musgrave, John Nollette, Andy Applegarth, Richard N. Funston

Nebraska Beef Cattle Reports

In Exp. 1, May-calving cows were utilized to evaluate the effects of winter supplementation on heifer progeny. Cows grazed either dormant upland winter range with or without a protein supplement or grazed dormant meadow with or without a protein supplement. In Exp. 2, replacement heifers from March and May calving herds were offered ad libitum meadow hay and 4 lb/d supplement or grazed meadow and offered 1 lb/d supplement from mid-January to mid-April. Calf weaning BW and ADG from birth to weaning was less for calves from cows grazing winter range with no supplement compared with all other dam treatments. …

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Effect Of Injectable Trace Mineral On Reproductive Performance In Beef Heifers, Shelby A. Springman, John Maddux, Mary E. Drewnoski Drewnoski, Richard N. Funston Jan 2018

Effect Of Injectable Trace Mineral On Reproductive Performance In Beef Heifers, Shelby A. Springman, John Maddux, Mary E. Drewnoski Drewnoski, Richard N. Funston

Nebraska Beef Cattle Reports

Trace minerals serve an essential role in regulating reproduction. Free-choice trace mineral supplementation is often provided to grazing beef cattle. An injectable trace-mineral solution used with free-choice trace minerals may be beneficial before breeding to improve mineral status. Therefore, Red Angus-based, May-born heifers were utilized to determine the effects of an injectable trace mineral on reproductive performance. Pregnancy rates did not differ between heifers injected with a trace mineral and heifers that received no injection. Injectable trace mineral at CIDR insertion 33 d before artificial insemination did not influence reproductive performance in heifers with adequate trace mineral status.

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Evaluating Methods Of Estimating Forage Intake By Grazing Cattle, Aaron J. Shropshire, Walter H. Schacht, Jerry D. Volesky Volesky Jan 2018

Evaluating Methods Of Estimating Forage Intake By Grazing Cattle, Aaron J. Shropshire, Walter H. Schacht, Jerry D. Volesky Volesky

Nebraska Beef Cattle Reports

Two methods of estimating forage intake of grazing cattle were compared to clipped estimates in 4-pasture rotational grazing systems on Sandhills subirrigated meadow from mid-May through early August over a 4-year period. Clipping standing vegetation samples within a pasture before and after cattle grazing provides for an accurate estimate of forage removal during a grazing period. A less laborious method of intake estimation commonly used is based on a percentage of an animal’s liveweight. University Extension and some federal agencies use a 2.3% factor and others such as the Natural Resources Conservation Service use a 2.7% factor. In this study …

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Letrozole: A Steroid-Free Estrous Synchronization Method, Sarah M. Romereim, Sarah C. Tenley, Mohamed A. Abedal-Majed Majed, Jeffrey W. Bergman, Scott G. Kurz, John S. Davis, Jennifer R. Wood, Andrea S. Cupp Jan 2018

Letrozole: A Steroid-Free Estrous Synchronization Method, Sarah M. Romereim, Sarah C. Tenley, Mohamed A. Abedal-Majed Majed, Jeffrey W. Bergman, Scott G. Kurz, John S. Davis, Jennifer R. Wood, Andrea S. Cupp

Nebraska Beef Cattle Reports

Most bovine estrous synchronization protocols utilize progesterone plus estrogen to control ovulation timing. A drug that inhibits estrogen production (Letrozole) may be an alternative, steroid-free synchronization method (not yet commercially available). However, low estrogen can negatively affect the health of follicles/oocytes and impact fertility. To determine its effects, Letrozole was administered intramuscularly while tracking follicle growth and circulating hormones. Letrozole response was variable. Two of three cows experienced delayed luteolysis/ovulation and extended progesterone production. This preliminary data indicates that Letrozole treatment allows normal follicle progression but drug response may vary and little is known about effects on oocyte quality.

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Impact Of Dietary Fat Source On Beef Display Life, Felipe A. Ribeiro, Katherine I. Domenech-Perez, Emery K. Wilkerson Wilkerson, Hope Voegele, Nicolas J. Herrera, Kellen B. Hart, Chris R. Calkins Jan 2018

Impact Of Dietary Fat Source On Beef Display Life, Felipe A. Ribeiro, Katherine I. Domenech-Perez, Emery K. Wilkerson Wilkerson, Hope Voegele, Nicolas J. Herrera, Kellen B. Hart, Chris R. Calkins

Nebraska Beef Cattle Reports

This study was conducted to evaluate the effects of dietary fat source with modified distillers grains plus solubles (MDGS) on beef display life. Steers were fed either a corn control, full-fat MDGS, de-oiled MDGS, or de-oiled MDGS plus corn oil diet. Strip loins were aged for 2, 9, 16 and 23 days and placed under retail conditions for 7 days. Results suggest that feeding MDGS to cattle increases polyunsaturated fatty acid content of beef and has the potential to reduce beef color and lipid stability in comparison to corn diets. These data indicate that feeding MDGS to cattle may decrease …

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Using A Cured Meat Model System To Investigate Factors That Influence Cured Color Development, Jennifer A. Posthuma, Faith D. Rasmussen, Gary A. Sullivan Sullivan Jan 2018

Using A Cured Meat Model System To Investigate Factors That Influence Cured Color Development, Jennifer A. Posthuma, Faith D. Rasmussen, Gary A. Sullivan Sullivan

Nebraska Beef Cattle Reports

Producing cured meats manufactured with natural ingredients could impact cured meat characteristics, including color. The objective of this study was to determine the effects of nitrite source (sodium nitrite or cultured celery juice powder), reducing agents (no reducing compound or sodium erythorbate/ ascorbic acid), and holding times prior to cooking on cured color development in a meat model system. The addition of reducing compounds had the largest impact on cured color development and reduced residual nitrite in a cured meat model system. Treatments cured with sodium nitrite had slightly greater cured color development than treatments cured with celery juice powder. …

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Repeated Calm Handling Can Lead To More Docile Cattle, Jamie T. Parham, Amy E. Tanner, Mark L. Wahlberg Wahlberg, W. S. Swecker Jr., Ronald M. Lewis Jan 2018

Repeated Calm Handling Can Lead To More Docile Cattle, Jamie T. Parham, Amy E. Tanner, Mark L. Wahlberg Wahlberg, W. S. Swecker Jr., Ronald M. Lewis

Nebraska Beef Cattle Reports

Changes in temperament in heifers when handled either frequently or infrequently were evaluated subjectively based on their behavior when restrained in (chute score) and exiting from (exit score) a squeeze chute. Chute scores decreased over time–a favorable direction–with more dramatic declines in heifers handled more frequently. Heifers with higher chute scores on the first day of handling had the largest reduction in score. Exit scores changed less over time. Chute score therefore may be more indicative of acclimation to a novel environment than exit score. Both scores appear to offer a fast, easy and inexpensive way to quantify docility in …

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Rumen Undegradable Protein Content And Digestibility Of Corn Silage And High-Moisture Corn, Colton R. Oney, Jana L. Gramkow, F. Henry Hilscher Hilscher, Elizabeth Schumacher, Andrea K. Watson, Galen E. Erickson, Jim C. Macdonald, Terry J. Klopfenstein Jan 2018

Rumen Undegradable Protein Content And Digestibility Of Corn Silage And High-Moisture Corn, Colton R. Oney, Jana L. Gramkow, F. Henry Hilscher Hilscher, Elizabeth Schumacher, Andrea K. Watson, Galen E. Erickson, Jim C. Macdonald, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Two studies were conducted to determine rumen undegradable protein (RUP) content and digestibility in corn silage. In Exp. 1, 37 and 42% DM corn silage were incubated in situ with two ruminally and one duodenally cannulated steer to calculate RUP content and RUP digestibility. In Exp. 2, dry rolled corn was reconstituted to 75, 70, 65, and 50% DM and ensiled in mini silos for 30, 90, 180, or 270 days. After ensiling, samples were ruminally incubated to determine RUP content of the grain. The grain within corn silage is less than 50% DM, as moisture content increases and time …

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The Effect Of Inoculants On Nutrient Losses Of Corn Silage And High-Moisture Corn Stored In Mini Silos, Colton R. Oney, Jana L. Gramkow, Andrea K. Watson Watson, Galen E. Erickson, Jim C. Macdonald, M. K. Biddlecome Jan 2018

The Effect Of Inoculants On Nutrient Losses Of Corn Silage And High-Moisture Corn Stored In Mini Silos, Colton R. Oney, Jana L. Gramkow, Andrea K. Watson Watson, Galen E. Erickson, Jim C. Macdonald, M. K. Biddlecome

Nebraska Beef Cattle Reports

Two experiments were conducted to determine the effects of inoculants (BONSILAGE CORN 200G and BONSILAGE HMC 200G) containing Lactobacillus buchneri, Lactobacillus plantarum and Pediococcus acidilactici on nutrient losses and aerobic stability of corn silage and high moisture corn. Corn silage and high moisture corn were inoculated and stored in mini silos with nutrient loss and spoilage characterizations at 30, 90, and 120 days with multiple inoculation levels. Longer ensiling times led to greater total acid production. The higher levels of inoculation led to lower total acid production and higher pH. Inoculating corn silage and high moisture corn also affected …

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Effect Of Revalor-Xr And Revalor-Xh On Heifer Performance And Carcass Characteristics, Caitlin A. Ohnoutka, Bradley M. Boyd, F. Henry Hilscher Hilscher, Grant I. Crawford, Brandon L. Nuttleman, Galen E. Erickson Jan 2018

Effect Of Revalor-Xr And Revalor-Xh On Heifer Performance And Carcass Characteristics, Caitlin A. Ohnoutka, Bradley M. Boyd, F. Henry Hilscher Hilscher, Grant I. Crawford, Brandon L. Nuttleman, Galen E. Erickson

Nebraska Beef Cattle Reports

A feedlot study evaluated the effects of 4 implant strategies (Revalor-XR on day 1, Revalor-XH on day 1, Revalor-200 on day 1, and Revalor-200 on day 70) on growth performance and carcass characteristics of feedlot heifers compared to non-implanted heifers fed 198 days. Intake was not impacted by treatments. Implanted cattle had greater carcass-adjusted ADG and lower F:G compared to cattle that received no implant. Implanted treatments had significantly greater HCW, dressing percentages, and lower marbling scores compared to non-implanted cattle. Heifers implanted with Revalor-XR, Revalor-XH, and Revalor-200 on day 70 had larger LM area resulting in lower calculated yield …

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Late Summer Planted Oat-Brassica Forage Quality Changes During Winter Grazing, Mary E. Lenz, Jordan L. Cox, Kristin E. Hales Hales, Hannah C. Wilson, Mary E. Drewnoski Jan 2018

Late Summer Planted Oat-Brassica Forage Quality Changes During Winter Grazing, Mary E. Lenz, Jordan L. Cox, Kristin E. Hales Hales, Hannah C. Wilson, Mary E. Drewnoski

Nebraska Beef Cattle Reports

Oat, radish, and turnip samples were taken on pivots being grazed from November through January in Clay Center, Nebraska. The objective was to determine how the quality changed throughout the winter. The forage was observed to be high-quality (highly digestibility with moderate CP content). Digestibility did decline over this period but minimal changes in CP content were observed. From early November to early January, the digestibility of oats appeared to decline more (10% unit decline) than turnip and radish leaves (5% unit decrease). However, digestibility (67% IVOMD) and CP content (15%) of oats in early January were still as high …

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Comparison Of Two Alternate Prostaglandin Products In Yearling Beef Heifers, Alicia C. Lansford, Tonya L. Meyer, Richard N. Funston Funston Jan 2018

Comparison Of Two Alternate Prostaglandin Products In Yearling Beef Heifers, Alicia C. Lansford, Tonya L. Meyer, Richard N. Funston Funston

Nebraska Beef Cattle Reports

Yearling heifers were administered 1 of 2 alternate prostaglandin products (Lutalyse vs. Lutalyse HighCon), which differ in concentration of active ingredient and administration route. Timing of estrus, pregnancy rate to AI, and final pregnancy rate did not differ between treatments. Body weight and ADG were also not affected by prostaglandin treatment. These results indicate producers can utilize Lutalyse HighCon, administered subcutaneously (s.c.), to avoid injection site blemishes and reduce carcass discounts with no impact on estrus synchronization or pregnancy rates.

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Impact Of Syngenta Enogen Feed Corn On Finishing Cattle Performance And Carcass Characteristics, Melissa L. Jolly-Breithaupt, Curtis J. Bittner, F. Henry Hilscher Hilscher, Galen E. Erickson, James C. Macdonald, Matt K. Luebbe Jan 2018

Impact Of Syngenta Enogen Feed Corn On Finishing Cattle Performance And Carcass Characteristics, Melissa L. Jolly-Breithaupt, Curtis J. Bittner, F. Henry Hilscher Hilscher, Galen E. Erickson, James C. Macdonald, Matt K. Luebbe

Nebraska Beef Cattle Reports

Two finishing experiments were conducted to evaluate Syngenta Enogen Feed Corn containing an alpha amylase enzyme trait compared to the near negative isoline control corn at two locations on cattle performance and carcass characteristics. No statistical differences were observed for final BW, DMI, ADG, or F:G for steers fed Syngenta Enogen Feed Corn versus the near negative isoline control corn. Fat depth and calculated yield grade were greater for steers fed Syngenta Enogen Feed Corn; however, HCW and marbling scores were not different. Previous research has observed a 2.6% to 16.4% decrease in F:G when Syngenta Enogen Feed Corn was …

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Chopped Sugar Beets As A Component Of Beef Cow Diets, Karla H. Jenkins, Jacob A. Hansen Jan 2018

Chopped Sugar Beets As A Component Of Beef Cow Diets, Karla H. Jenkins, Jacob A. Hansen

Nebraska Beef Cattle Reports

Sugar beets not accepted for human consumption were evaluated as an energy source in a limit fed ration for confined beef cows. Initial and final body weight and body condition score were not different between wheat straw based diets containing wet distillers grains and either chopped sugar beets or corn. Body condition score change tended to be greater for the diet containing corn. However, cows on both treatments finished the study with a body condition score of 5.7. Chopped sugar beets mixed with wheat straw and stored in an agricultural bag underwent ensiling and did not result in choking issues. …

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Evaluation Of Brown Midrib Corn Silage For Growing And Backgrounding Beef Steers, F. Henry Hilscher, Curtis J. Bittner, John N. Anderson Anderson, Galen E. Erickson Jan 2018

Evaluation Of Brown Midrib Corn Silage For Growing And Backgrounding Beef Steers, F. Henry Hilscher, Curtis J. Bittner, John N. Anderson Anderson, Galen E. Erickson

Nebraska Beef Cattle Reports

A growing study evaluated three corn silage hybrids for growing crossbred steers. The three hybrids were: a standard corn silage hybrid which served as the control, a brown midrib hybrid, and an experimental brown mid rib hybrid with a softer endosperm. Intake, ADG, and ending BW were greater for steers fed either brown mid rib silage compared to control, but not different between the brown mid rib or experimental brown mid rib silage. While brown mid rib hybrids had greater DMI and ADG, there was no difference in F:G between all three treatments. Feeding brown mid rib hybrids as corn …

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Evaluation Of Corn Silage Hybrids With The Brown Midrib Trait And Silage Inclusion For Finishing Cattle, F. Henry Hilscher, Curtis J. Bittner, John N. Anderson Anderson, Galen E. Erickson Jan 2018

Evaluation Of Corn Silage Hybrids With The Brown Midrib Trait And Silage Inclusion For Finishing Cattle, F. Henry Hilscher, Curtis J. Bittner, John N. Anderson Anderson, Galen E. Erickson

Nebraska Beef Cattle Reports

A finishing study evaluated three corn silage hybrids fed at either 15 or 45% of diet DM for finishing steers. The three hybrids were a standard corn silage hybrid which served as the control, a brown midrib hybrid and an experimental brown midrib hybrid with a softer endosperm. An interaction was observed between hybrid and silage inclusion. Gain and HCW were greater for steers fed the experimental brown midrib compared to other two hybrids when fed at 15%. Feeding brown midrib hybrids at 45% of the diet DM resulted in greater ADG and HCW when compared to a control corn …

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Nutrient Digestibility And Fermentation Of Brown Midrib Corn Fed To Growing Beef Steers, F. Henry Hilscher, Melissa L. Jolly-Breithaupt, Jana L. Gramkow Gramkow, Hannah C. Wilson, Mitch M. Norman, John N. Anderson, Galen E. Erickson Jan 2018

Nutrient Digestibility And Fermentation Of Brown Midrib Corn Fed To Growing Beef Steers, F. Henry Hilscher, Melissa L. Jolly-Breithaupt, Jana L. Gramkow Gramkow, Hannah C. Wilson, Mitch M. Norman, John N. Anderson, Galen E. Erickson

Nebraska Beef Cattle Reports

A digestion study evaluated three corn silage hybrids for growing crossbred steers. The three hybrids were: a standard corn silage hybrid which served as the control, a brown midrib hybrid (bm3), and an experimental bm3 hybrid with a softer endosperm. Both bm3 hybrids had greater organic matter and fiber digestibility compared to the control corn silage. However, no differences were observed between the two bm3 hybrids. Rumen pH was reduced for BM3 and BM3-EXP compared to the control suggesting greater rumen fermentation. In vitro gas production was increased for the bm3 hybrids compared to the control further supporting greater rumen …

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The Relationship Between Marbling, Superoxide Dismutase, And Beef Tenderness, Nicolas J. Herrera, Emery K. Wilkerson, Katherine I. Domenech-Perez Perez, Felipe A. Ribeiro, Michael D. Chao, Chris Calkins Jan 2018

The Relationship Between Marbling, Superoxide Dismutase, And Beef Tenderness, Nicolas J. Herrera, Emery K. Wilkerson, Katherine I. Domenech-Perez Perez, Felipe A. Ribeiro, Michael D. Chao, Chris Calkins

Nebraska Beef Cattle Reports

This study was conducted to evaluate the relationships between animal oxidative status (as indicated by superoxide dismutase [SOD] activity) to marbling and beef tenderness. Prime and Select-grade strip loins were selected and aged for 2, 7, 14, 21, and 28 days for Warner Bratzler shear force, Troponin-T, and SOD activity. Results showed that meat exhibiting higher levels of marbling had lower shear force values and thus were more tender. Low-marbled samples tended to have a greater tenderness response to aging. The effect of oxidative stress, however, was not evident in this study as SOD values were similar. Although the effects …

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Evaluation Of Corn Distillers Solubles On Finishing Steer Performance, Benjamin H. Hansen, Curtis J. Bittner, Bradley M. Boyd Boyd, F. Henry Hilscher, Jim C. Macdonald, Galen E. Erickson Jan 2018

Evaluation Of Corn Distillers Solubles On Finishing Steer Performance, Benjamin H. Hansen, Curtis J. Bittner, Bradley M. Boyd Boyd, F. Henry Hilscher, Jim C. Macdonald, Galen E. Erickson

Nebraska Beef Cattle Reports

A finishing study was conducted to evaluate the effects of feeding 0, 8, 16, or 20% corn distillers solubles (CDS), as well as the effects of feeding a combination of 16% CDS and 20% wet distillers grains plus solubles (WDGS) to replace a blend of dry-rolled and high-moisture corn on finishing steer performance. As inclusions of CDS increased, ADG linearly increased and F:G linearly decreased. Feeding value of CDS at 20% inclusion was determined to be 147% compared to the corn blend. The addition of WDGS resulted in a decrease in DMI with similar ADG, resulting in a decrease in …

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Effect Of Myoglobin State On Color Stability Of High Pressure Processed Ground Beef, Jhinuk Gupta, Chad G. Bower, George A. Cavender Cavender, Gary A. Sullivan Jan 2018

Effect Of Myoglobin State On Color Stability Of High Pressure Processed Ground Beef, Jhinuk Gupta, Chad G. Bower, George A. Cavender Cavender, Gary A. Sullivan

Nebraska Beef Cattle Reports

High pressure processing, a non-thermal pasteurization technique, can reduce E. coli in beef but the use is limited due to discoloration of raw beef after high pressure processing. Different states of myoglobin have inherently different color stability. The objective of this study was to determine the impact of myoglobin state on color stability of raw beef patties treated with high pressure processing. Modified atmosphere packaging (high oxygen-oxymyoglobin, carbon monoxide-carboxymyoglobin), vacuum packaging (deoxymyoglobin) or added potassium ferricyanide (metmyoglobin) treatments were used to prepare patties with desired myoglobin states. Color was measured (CIE L*, a*, b*) before and after high pressure processing …

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Effect Of Ingredients And Packaging On Color Of High Pressure Processed Ground Beef, Jhinuk Gupta, Chad G. Bower, George A. Cavender Cavender, Gary A. Sullivan Jan 2018

Effect Of Ingredients And Packaging On Color Of High Pressure Processed Ground Beef, Jhinuk Gupta, Chad G. Bower, George A. Cavender Cavender, Gary A. Sullivan

Nebraska Beef Cattle Reports

High pressure processing is a non-thermal pasteurization technique to control pathogens, like E. coli. However, color changes in raw beef induced by processing restrict high pressure processing’s use within the beef industry. The objectives of this study were to investigate the effects of adding curing agents (nitrite) and packaging with or without reducing compounds (ascorbic acid/erythorbate) on color retention in high pressure processed ground beef. High pressure processing resulted in a detrimental effect on the color of the beef patties for all treatments. Lightness and yellowness increased and redness decreased after high pressure processing. The effect remained the same throughout …

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Effects Of Production System On Cow And Calf Performance, Shelby E. Gardine, Jason M. Warner, Robert G. Bondurant Bondurant, F. Henry Hilscher, Karla H. Jenkins, Galen E. Erickson, Terry J. Klopfenstein Jan 2018

Effects Of Production System On Cow And Calf Performance, Shelby E. Gardine, Jason M. Warner, Robert G. Bondurant Bondurant, F. Henry Hilscher, Karla H. Jenkins, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Limited traditional forage resources have prompted interest for alternative cow-calf production systems. This study evaluated the effects of two winter cow-calf production systems (cornstalk grazing and dry-lot feeding) on cow-calf performance in a summer-calving, intensively managed cowherd at two locations. Grazing cow-calf pairs on cornstalks resulted in similar or lower ending BW of cows and lower ADG of calves when compared to cow-calf pairs wintered in the dry-lot. A partial budget of incorporating winter cornstalk grazing into an intensive production system suggests that cows wintered on cornstalks may be $137 more profitable compared to cows wintered in the dry-lot.

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Effects Of Production System And Post-Weaning Management On Finishing Performance And Carcass Characteristics Of Steer And Heifer Calves, Shelby E. Gardine, Bradley M. Boyd, Curtis J. Bittner Bittner, F. Henry Hilscher, Karla H. Jenkins, Galen E. Erickson, Terry J. Klopfenstein Jan 2018

Effects Of Production System And Post-Weaning Management On Finishing Performance And Carcass Characteristics Of Steer And Heifer Calves, Shelby E. Gardine, Bradley M. Boyd, Curtis J. Bittner Bittner, F. Henry Hilscher, Karla H. Jenkins, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

This study evaluated the effects of cow-calf production system and post-weaning management on finishing performance and carcass characteristics of steer and heifer calves. Calves that were wintered on cornstalks prior to weaning had lighter initial BW compared to calves that were wintered in the dry-lot; however, final BW and carcass weight were similar between treatments. Post-weaning management was either adapting calves to a finishing diet following weaning or feeding a grower diet prior to the finishing phase. When harvested at similar back fat, calves that were fed a grower diet for 76 days prior to the finishing phase had 71 …

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Evaluation Of Protein From Distillers Grains In Finishing Diets On Nutrient Digestibility, Zachary E. Carlson, Jana L. Gramkow, Hannah C. Wilson Wilson, Melissa L. Jolly-Breithaupt, Galen E. Erickson, Jim C. Macdonald, Matt K. Luebbe Jan 2018

Evaluation Of Protein From Distillers Grains In Finishing Diets On Nutrient Digestibility, Zachary E. Carlson, Jana L. Gramkow, Hannah C. Wilson Wilson, Melissa L. Jolly-Breithaupt, Galen E. Erickson, Jim C. Macdonald, Matt K. Luebbe

Nebraska Beef Cattle Reports

A metabolism trial was conducted to evaluate protein from modified distillers grains plus solubles (MDGS) in finishing diets on nutrient digestibility and ruminal fermentation characteristics. Isolated protein from corn was not different than MDGS for dry matter, organic matter, or neutral detergent fiber digestibility. However, steers fed MDGS tended to have lower total tract organic matter digestibility compared to corn and protein from corn. Protein had greater total tract organic matter and starch digestibility than MDGS. Protein from corn did not contribute towards the lower digestibility of MDGS. Protein is more easily digestible than the other components in distillers grains …

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Production Of High-Quality Beef–The Nebraska Advantage, Chris R. Calkins Jan 2018

Production Of High-Quality Beef–The Nebraska Advantage, Chris R. Calkins

Nebraska Beef Cattle Reports

Here is a clear description of the Nebraska Advantage in producing high-quality beef: the right genetics, numerous pastures, a multitude of cattle, great water resources, locally-grown corn, the availability of ethanol byproducts for feed, and young cattle that grow fast, with sufficient marbling and subcutaneous fat to ensure tender, flavorful, beef. The science of beef quality supports this production system. The state supports its citizens and agriculture through the University of Nebraska and the Nebraska Department of Agriculture, augmenting the infrastructure. If one could invent an ideal place to produce high-quality beef, it would look much like Nebraska! The impact …

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Potential Variation In Determination Of Longissimus Muscle Area In Carcasses From Heifers Fed With Or Without Zilpaterol Hydrochloride, Chris R. Calkins, Jenna J. O'Daniel, Govindarajan Konda Naganathan Naganathan, Kellen B. Hart, Katherine I. Domenech-Perez, T.B. Schmidt Jan 2018

Potential Variation In Determination Of Longissimus Muscle Area In Carcasses From Heifers Fed With Or Without Zilpaterol Hydrochloride, Chris R. Calkins, Jenna J. O'Daniel, Govindarajan Konda Naganathan Naganathan, Kellen B. Hart, Katherine I. Domenech-Perez, T.B. Schmidt

Nebraska Beef Cattle Reports

This study was conducted to evaluate some sources of potential variation in determination of longissimus muscle area between the 12th and 13th ribs of carcasses from heifers fed with or without zilpaterol hydochloride. Cross sections of the rib-loin were taken cranial to the 11th rib and caudal to the 13th rib, about 3–4 millimeters thick at 90 degrees perpendicular to the long axis of the longissimus muscle. Potential variation of longissimus muscle area can arise from the natural variation of muscle size when cutting between the 12th and 13th ribs (up to 9%). Deviation in cutting perpendicular to the long …

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