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2012

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Articles 13621 - 13650 of 19169

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Nutritional Regime And Antral Follicle Count Impact Reproductive Characteristics In Heifers, Adam F. Summers, Robert A. Cushman, Stetson P. Weber Weber, Karl V. Moline, Jeffrey W. Bergman, Matthew L. Spangler, Andrea S. Cupp Jan 2012

Nutritional Regime And Antral Follicle Count Impact Reproductive Characteristics In Heifers, Adam F. Summers, Robert A. Cushman, Stetson P. Weber Weber, Karl V. Moline, Jeffrey W. Bergman, Matthew L. Spangler, Andrea S. Cupp

Nebraska Beef Cattle Reports

Developing heifers were offered either a modified distillers (MOD), distillers based (DDG), or corn gluten feed based (CGF) supplement while grazing pastures during development. Prior to breeding, antral follicle count (AFC), uterine horn diameter (UHD), ovarian area, and reproductive tract score (RTS) were determined via rectal ultrasonography to examine the effect of protein supplement on heifer reproductive characteristics. Heifers developed on MOD diets had greater RTS, ovarian area, and total AFC compared to DDG and CGF heifers. Small and medium follicle counts had a positive correlation with total AFC. Heifers developed on DDG and CGF had greater overall pregnancy rates …

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Vascular Endothelial Growth Factor A (Vegfa) In Ovulatory Follicles, Renee M. Mcfee, Robin A. Artac, William E. Pohlmeier Pohlmeier, Jill G. Kerl, Vanessa M. Brauer, Robert A. Cushman, Andrea S. Cupp Jan 2012

Vascular Endothelial Growth Factor A (Vegfa) In Ovulatory Follicles, Renee M. Mcfee, Robin A. Artac, William E. Pohlmeier Pohlmeier, Jill G. Kerl, Vanessa M. Brauer, Robert A. Cushman, Andrea S. Cupp

Nebraska Beef Cattle Reports

Granulosa cells express vascular endothelial growth factor A (VEGFA), and VEGFA mRNA levels increase as bovine follicles reach preovulatory status. To further evaluate the role of VEGFA isoforms in follicular development, cows were either synchronized with a modified Co- Synch protocol (CIDR) or treated with melengestrol acetate (MGA) with subsequent aspiration of the dominant follicles. Higher mRNA levels for the antiangiogenic isoform, VEGFA_164B, along with AMH and CARTPT in E2-inactive follicles suggest that these factors are markers for unhealthy, atretic follicles. In contrast, higher mRNA levels for the proangiogenic isoform, VEGFA_164, in E2-active follicles indicate that this isoform may help …

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Association Of Myostatin On Performance And Carcass Traits In Crossbred Cattle, Stephanie K. Pruitt, Kelsey M. Rolfe, Brandon Nuttelman Nuttelman, William A. Griffin, Joshua R. Benton, Galen E. Erickson, Matthew L. Spangler Jan 2012

Association Of Myostatin On Performance And Carcass Traits In Crossbred Cattle, Stephanie K. Pruitt, Kelsey M. Rolfe, Brandon Nuttelman Nuttelman, William A. Griffin, Joshua R. Benton, Galen E. Erickson, Matthew L. Spangler

Nebraska Beef Cattle Reports

Calf-fed steers and yearling heifersgenotyped as homozygous active, heterozygous, or homozygous inactive for myostatin were used to evaluate performance and carcass traits from Piedmontese influenced cattle. Homozygous inactive steers had similar ADG, lower DMI and lower F:G when compared to steers influenced by active myostatin. Steers and heifers with inactive myostatin showed similar trends in carcass traits producing larger LM area, greater dressing percentages and leaner carcasses. Similar ADG, lower DMI, and improved F:G were observed for homozygous inactive compared to homozygous active steers. Cattle with inactive myostatin require more days on feed than homozygous active cattle to reach similar …

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Effect Of Post-Weaning Heifer Development System On Average Daily Gain, Reproduction, And Adaptation To Corn Residue During First Pregnancy, Stetson P. Weber, Adam F. Summers, Tonya L. Meyer, Richard N. Funston Jan 2012

Effect Of Post-Weaning Heifer Development System On Average Daily Gain, Reproduction, And Adaptation To Corn Residue During First Pregnancy, Stetson P. Weber, Adam F. Summers, Tonya L. Meyer, Richard N. Funston

Nebraska Beef Cattle Reports

A three-year study evaluated postweaning winter grazing system management on primiparous heifers at two locations. Weaned heifers were assigned to a development system: (1) graze corn residue then winter range, (2) graze winter range, or (3) graze winter range then placed in drylot. A combination of artificial insemination (AI) and natural mating was used at time of breeding based on location. Pregnant heifers were assigned to one of three corn residue fields in late gestation based on previous heifer development. Weaned heifers developed on corn residue had similar BW and ADG during winter grazing and after breeding, compared to heifers …

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Impact Of Post-Weaning Beef Heifer Development System On Average Daily Gain, Reproduction, And Feed Efficiency, Stetson P. Weber, Adam F. Summers, Tonya L. Meyer Meyer, Richard N. Funston Jan 2012

Impact Of Post-Weaning Beef Heifer Development System On Average Daily Gain, Reproduction, And Feed Efficiency, Stetson P. Weber, Adam F. Summers, Tonya L. Meyer Meyer, Richard N. Funston

Nebraska Beef Cattle Reports

This experiment evaluated the impact of post-weaning heifer development system on ADG, reproduction, and subsequent feed efficiency during late gestation. Shortly after weaning, heifers were developed on one of two winter grazing systems: corn residue (CR) followed by winter range, or winter range followed by drylot (DL). Heifer BW was greater for DL heifers prior to breeding, at breeding, and prior to first parturition. There were no differences in reproductive performance despite CR heifers having lower BW at breeding. Feed efficiency was similar during late gestation between CR and DL heifers. Extending winter grazing decreased BW without impacting reproductive performance.

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Research Results Are Dependent On Accurate Cattle Weights, Andrea K. Watson, Brandon L. Nuttelman, Terry J. Klopfenstein Klopfenstein, Galen E. Erickson, Cody J. Schneider Jan 2012

Research Results Are Dependent On Accurate Cattle Weights, Andrea K. Watson, Brandon L. Nuttelman, Terry J. Klopfenstein Klopfenstein, Galen E. Erickson, Cody J. Schneider

Nebraska Beef Cattle Reports

The goal of limit feeding is to reduce variability in rumen fill at weighing. The amount of rumen fill varies by diet. Cattle included in this study were grazing cornstalks, smooth bromegrass pasture, or in a drylot and fed a forage and modified distillers grains (MDGS) mix. Cattle were limit fed for at least three days and then weighed on two or three consecutive days to obtain a beginning BW. Full weights of individuals were +99 to -86 lb compared to their limit fed weights. The correlation between two-day weights after limit feeding were greater than 0.9, and greater than …

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Forage Availability And Quality Of No-Till Forage Crops For Grazing Cattle, Alex H. Titlow, Karla H. Jenkins, Matt K. Luebbe Luebbe, Drew J. Lyon Jan 2012

Forage Availability And Quality Of No-Till Forage Crops For Grazing Cattle, Alex H. Titlow, Karla H. Jenkins, Matt K. Luebbe Luebbe, Drew J. Lyon

Nebraska Beef Cattle Reports

No-till forage crops were planted to determine forage quantity and quality for grazing cattle. Seven combinations were evaluated using different mixtures containing forage peas, oats, winter triticale, turnips, radishes, clover, vetch, and sunflower. The cover crops were planted April 9 and sampled three times (day 54, 70, and 86 after planting) to determine forage mass and nutrient content. Mixtures containing forage peas and oats yielded the greatest quantity of DM/acre. The NDF and CP content of the mixtures are comparable to native range during the growing season. When used in place of fallow in crop rotations, grazing cover crops may …

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Strategies Of Supplementing Dried Distillers Grains To Yearling Steers On Smooth Bromegrass Pastures, Stephanie K. Pruitt, Kelsey M. Rolfe, Brandon Nuttelman Nuttelman, Terry J. Klopfenstein, Galen E. Erickson, William A. Griffin, Walter H. Schacht Jan 2012

Strategies Of Supplementing Dried Distillers Grains To Yearling Steers On Smooth Bromegrass Pastures, Stephanie K. Pruitt, Kelsey M. Rolfe, Brandon Nuttelman Nuttelman, Terry J. Klopfenstein, Galen E. Erickson, William A. Griffin, Walter H. Schacht

Nebraska Beef Cattle Reports

Steers supplemented with dried distillers grains with solubles (DDGS) daily on nonfertilized smooth bromegrass pastures gained 0.55 lb/day more than cattle on nonsupplemented treatments. Steers supplemented at 0.6% BW DDGS gained 2.59 lb/day compared to 2.36 lb/ day for steers fed a similar total amount of DDGS at increasing levels over the growing season.

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Comparison Of Feeding Dry Distillers Grains In A Bunk Or On The Ground To Cattle Grazing Subirrigated Meadow, Jacqueline A. Musgrave, L. Aaron Stalker, Terry J. Klopfenstein Klopfenstein, Jerry D. Volesky Jan 2012

Comparison Of Feeding Dry Distillers Grains In A Bunk Or On The Ground To Cattle Grazing Subirrigated Meadow, Jacqueline A. Musgrave, L. Aaron Stalker, Terry J. Klopfenstein Klopfenstein, Jerry D. Volesky

Nebraska Beef Cattle Reports

The objective of this study was to compare feeding dry distillers grains with solubles (DDGS) in a bunk or on the ground to cattle grazing subirrigated meadow. Steers fed in a bunk had greater ADG than steers fed on the ground (1.19 vs. 0.92 lb). The NRC (1996) was used to retrospectively calculate the DDGS intake difference between treatments. For steers fed in a bunk, a reduction in DDGS intake between 0.8 and 0.9 lb/day would have resulted in a 0.27 lb/day reduction in ADG, which means 36-41% of the DDGS fed on the ground was wasted. At $200 (DMB) …

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Byproducts With Low Quality Forage To Grazing Cattle, Annie J. Doerr, Sandra Villasanti, Kelsey M. Rolfe Rolfe, Brandon L. Nuttelman, William A. Griffin, Terry J. Klopfenstein, Walter H. Schacht Jan 2012

Byproducts With Low Quality Forage To Grazing Cattle, Annie J. Doerr, Sandra Villasanti, Kelsey M. Rolfe Rolfe, Brandon L. Nuttelman, William A. Griffin, Terry J. Klopfenstein, Walter H. Schacht

Nebraska Beef Cattle Reports

Sixteen cows grazing smooth bromegrass pasture were unsupplemented or supplemented a 35:65 Synergy:straw mixture. Grazed forage intake was replaced about 50% with supplementation, with no differences in cow performance. In a second experiment conducted over two summers, yearling steers grazing native range were fed a mixture of 70:30 or 60:40 hay:WDGS or 60:40 straw:WDGS. During the first year, all steers fed byproduct-forage mixtures had greater ADG than control steers. During the second year, steers supplemented with byproduct-hay mixtures had similar gains as control while steers supplemented byproduct-straw mixtures gained less. Supplementing WDGS and low quality forage reduced forage intake by …

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Effect Of Storage Method On Nutrient Composition And Dry Matter Loss Of Wet Distillers Grains, Jana L. Harding, Jessica E. Cornelius, Kelsey M. Rolfe Rolfe, Adam L. Shreck, Galen E. Erickson, Terry J. Klopfenstein Jan 2012

Effect Of Storage Method On Nutrient Composition And Dry Matter Loss Of Wet Distillers Grains, Jana L. Harding, Jessica E. Cornelius, Kelsey M. Rolfe Rolfe, Adam L. Shreck, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Storage of distillers grains plus solubles was studied using 55-gallon barrels to mimic bunker storage. Six different cover treatments were evaluated when wet distillers grains plus solubles (WDGS) and straw were stored, or modified distillers grains plus solubles (MDGS) alone was stored for 60 days in 55-gallon barrels. Covering with plastic minimized spoilage (8%), and plastic or solubles as cover decreased DM loss (3-5%). Barrels filled with WDGS alone and uncovered were evaluated over 140 days of storage. With time, DM loss increased from 5 to 22%, while spoilage increased from 6 to 12%.

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Increasing Levels Of Condensed Distillers Solubles And Finishing Performance, Anna C. Pesta, Brandon L. Nuttelman, William A. Griffin Griffin, Terry J. Klopfenstein, Galen E. Erickson Jan 2012

Increasing Levels Of Condensed Distillers Solubles And Finishing Performance, Anna C. Pesta, Brandon L. Nuttelman, William A. Griffin Griffin, Terry J. Klopfenstein, Galen E. Erickson

Nebraska Beef Cattle Reports

Effects of adding 0, 9, 18, 27, or 36% condensed corn distillers solubles (CDS) to finishing diets containing a blend of dry-rolled and high-moisture corn and no other byproducts, were evaluated. As CDS replaced corn, DMI decreased linearly, while ADG and F:G increased quadratically. Feeding up to 36% CDS may effectively reduce dietary inclusion of corn, while improving ADG and F:G in finishing diets, with calculated maximal ADG at 20.8 and best F:G at 32.5% inclusion of CDS (DM).

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Feeding Condensed Distillers Solubles In Finishing Diets Containing Wdgs Or Synergy, Anna C. Pesta, Brandon L. Nuttelman, William A. Griffin Griffin, Terry J. Klopfenstein, Galen E. Erickson Jan 2012

Feeding Condensed Distillers Solubles In Finishing Diets Containing Wdgs Or Synergy, Anna C. Pesta, Brandon L. Nuttelman, William A. Griffin Griffin, Terry J. Klopfenstein, Galen E. Erickson

Nebraska Beef Cattle Reports

Effects of adding 0, 7, 14, or 21% condensed distillers solubles (CDS) to diets containing either 20% modified distillers grains (MDGS) or 20% Synergy (a combination of modified distillers grains and wet corn gluten feed) were evaluated. A byproduct by CDS level interaction was observed for final BW, hot carcass weight, and ADG. Cattle fed Synergy had greater DMI than cattle fed MDGS. In MDGS diets at 14% CDS and in Synergy diets at 21% CDS, ADG was maximized. Increasing CDS level in both types of diets improved F:G linearly.

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Wet Distillers Grains And Ratios Of Steam-Flaked And Dry-Rolled Corn, Cody A. Nichols, Karla H. Jenkins, Galen E. Erickson Erickson, Matt K. Luebbe, Stephanie A. Furman, Brandon L. Sorensen, Kathryn J. Hanford, Terry J. Klopfenstein Jan 2012

Wet Distillers Grains And Ratios Of Steam-Flaked And Dry-Rolled Corn, Cody A. Nichols, Karla H. Jenkins, Galen E. Erickson Erickson, Matt K. Luebbe, Stephanie A. Furman, Brandon L. Sorensen, Kathryn J. Hanford, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Feeding different ratios of dryrolled corn (DRC) and steam-flaked corn (SFC) in diets that contain 0 or 35% wet distillers grains plus solubles (WDGS) was evaluated. As SFC replacedDRC in diets containing no WDGS, F:G improved. Varying SFC and DRC ratio in diets containing 35% WDGS did not impact F:G. Feeding WDGS increased hot carcass weight, and fat depth while feeding different ratios of corn impacted marbling deposition. Wet distillers grains appears to reducethe positive impacts of feeding SFC in finishing diets when included at 35% of diet DM.

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Effect Of Corn Processing On Feedlot Steers Fed Sugarbeet Pulp, Cody A. Nichols, Matt K. Luebbe, Karla H. Jenkins Jenkins, Galen E. Erickson, Stephanie A. Furman, Terry J. Klopfenstein Jan 2012

Effect Of Corn Processing On Feedlot Steers Fed Sugarbeet Pulp, Cody A. Nichols, Matt K. Luebbe, Karla H. Jenkins Jenkins, Galen E. Erickson, Stephanie A. Furman, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Impact of feeding three levels of beet pulp (0, 10, 20%, DM basis) with either dry-rolled corn (DRC) or steamflaked corn (SFC) in feedlot rations was evaluated. Final BW, DMI, and ADG decreased linearly as beet pulp replaced corn in the diet. Beet pulp linearly decreased HCW, 12th rib fat, and yield grade. Corn processing had no impact on carcass characteristics. Feeding SFC improved F:G, compared to feeding DRC. The inclusion of beet pulp in the diet did not impact F:G, however, because of the decrease of both DMI and ADG.

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Distillers Grains With Solubles And Ground Ear Corn In Feedlot Diets, Terry L. Mader Jan 2012

Distillers Grains With Solubles And Ground Ear Corn In Feedlot Diets, Terry L. Mader

Nebraska Beef Cattle Reports

In a 162-day finishing study, steers were fed various levels of dried distillers grains with solubles (DGS) with ground ear corn harvested at 45% moisture, and compared with steers fed 25% DGS, rolled corn, and corn silage. Steers fed the highest level of DGS (37.5% of diet DM) with ground high-moisture ear corn had the lowest ADG and DMI, but F:G tended to be improved by feeding 25% and 37.5% DGS with ear corn as compared with feeding rolled corn plus corn silage. Feed cost of gain (COG) and total COG was most favorable (4.4% lower than control) for cattle …

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Meta-Analysis Of The Effect Of Dietary Sulfur On Feedlot Health, Cody A. Nichols, Virgil R. Bremer, Andrea K. Watson Watson, Crystal D. Buckner, Jana L. Harding, David R. Smith, Galen E. Erickson, Terry J. Klopfenstein Jan 2012

Meta-Analysis Of The Effect Of Dietary Sulfur On Feedlot Health, Cody A. Nichols, Virgil R. Bremer, Andrea K. Watson Watson, Crystal D. Buckner, Jana L. Harding, David R. Smith, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

A meta-analysis of University of Nebraska– Lincoln finishing trials was conducted to evaluate the effect of dietary sulfur on feedlot health. An interactionbetween level of dietary sulfur and forage NDF (P = 0.07) affected the incidence of polioencephalomalacia (PEM) cases. For a given level of dietarysulfur the relative risk for PEM decreasedas forage NDF increased. Rumen degradable sulfur (RDS) was estimated for feedstuffs fed to cattle includedin the analysis. As level of RDS increased in the diet, the incidence of PEM increased (P < 0.01). Rumen degradable sulfur is a better measure of PEM risk because it accounts for the dietarysulfur that contributes to hydrogen sulfide production.

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Complete-Feed Diet Ramp™ In Grain Adaptation Programs, Cody J. Schneider, Brandon L. Nuttelman, Kelsey M. Rolfe Rolfe, William A. Griffin, Galen E. Erickson, Terry J. Klopfenstein Jan 2012

Complete-Feed Diet Ramp™ In Grain Adaptation Programs, Cody J. Schneider, Brandon L. Nuttelman, Kelsey M. Rolfe Rolfe, William A. Griffin, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Cattle were adapted to a common finishing diet over 22 days by decreasing RAMP (100 to 0%) and increasing finisher (0 to 100%) either as a blend in a traditional grain adaptation system or a two-ration program. The control treatment decreased alfalfa hay inclusion (45 to 7.5%) while corn inclusion increased. Steers adapted using RAMP were more efficient than traditionally adapted cattle. Using RAMP as an ingredient improved ADG compared to the traditional grain adaptation program.

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Use Of Complete-Feed Diets Ramp™ And Test Starter For Receiving Cattle, Cody J. Schneider, Brandon J. Nuttelman, Kelsey M. Rolfe Rolfe, William A. Griffin, David R. Smith, Terry J. Klopfenstein, Galen E. Erickson Jan 2012

Use Of Complete-Feed Diets Ramp™ And Test Starter For Receiving Cattle, Cody J. Schneider, Brandon J. Nuttelman, Kelsey M. Rolfe Rolfe, William A. Griffin, David R. Smith, Terry J. Klopfenstein, Galen E. Erickson

Nebraska Beef Cattle Reports

Performance of newly arrived 576 lb steer calves, fed two complete feeds or a control ration was evaluated. Treatment diets were fed for 30 or 31 days and includeda control receiving diet consisting of alfalfa hay, Sweet Bran® , dry-rolled corn, and supplement or one of two complete feeds: RAMP and Test Starter which contained a high level of Sweet Bran and a minimal amount of forage. RAMP increased ADG when compared with the control diet. Cattle fed Test Starter had similar performance to the control receiving diet.

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Feeding Modified Distillers Grains With Solubles And Wet Corn Gluten Feed (Synergy) To Adapt Cattle To Finishing Diets, Marco G. Dib, Jhones O. Sarturi, Kelsey M. Rolfe Rolfe, Galen E. Erickson, Terry J. Klopfenstein, Ron Lindquist Jan 2012

Feeding Modified Distillers Grains With Solubles And Wet Corn Gluten Feed (Synergy) To Adapt Cattle To Finishing Diets, Marco G. Dib, Jhones O. Sarturi, Kelsey M. Rolfe Rolfe, Galen E. Erickson, Terry J. Klopfenstein, Ron Lindquist

Nebraska Beef Cattle Reports

An experiment with 236 steers and eight pens per treatment (14 or 15 steers/pen) evaluated two grain adaptation treatments. Treatments included adapting steers by decreasing alfalfa (CON) or decreasing a combination of distillers grains and corn gluten feed (SYNERGY) followed by feeding a common finishing diet to slaughter. Performance and carcass traits did not differ between adaptation systems. A combination of MDGS and SYNERGY can be used to adapt beef cattle to feedlot diets with efficacy of the traditional, foragebased method.

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Using Beet Pulp To Adapt Cattle To Finishing Diets, Cody J. Schneider, Matt K. Luebbe, Karla H. Jenkins Jenkins, Stephanie A. Furman, Galen E. Erickson, Terry J. Klopfenstein Jan 2012

Using Beet Pulp To Adapt Cattle To Finishing Diets, Cody J. Schneider, Matt K. Luebbe, Karla H. Jenkins Jenkins, Stephanie A. Furman, Galen E. Erickson, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Cattle were adapted to a common finishing diet over 21 days by traditional adaption, reducing alfalfa hay inclusion (46 to 6%) or beet pulp (BP) adaption programs. A low beet pulp treatment (BP decreased from 18 to 6% and alfalfa hay from 34 to 6%) and a high BP treatment in which both BP and alfalfa hay were decreased from 26 to 6% were compared. Adapting cattle with high BP tended to decrease DMI during the adaption period. Both BP adaption programs increased ADG over the entire feeding period. Replacing up to 50% of alfalfa hay with BP during grain …

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Effect On Performance And Nutrient Mass Balance Of Feeding Micro-Aid In Wet Distillers Grains Plus Solubles Diets, Annie J. Doerr, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton, Mike J. Rincker Jan 2012

Effect On Performance And Nutrient Mass Balance Of Feeding Micro-Aid In Wet Distillers Grains Plus Solubles Diets, Annie J. Doerr, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Joshua R. Benton, Mike J. Rincker

Nebraska Beef Cattle Reports

Finishing cattle performance and mass balance were evaluated when Micro- Aid® was fed in diets containing wet distillers grains plus solubles (WDGS). There was no difference in performance and carcass characteristics between treatments. In a WINTER experiment, cattle fed Micro-Aid had a greater amount of OM and DM removedin manure. Micro-Aid in the diet increased the amount of manure N and decreased N losses in the WINTER. There was no difference in N excreted in manure or lost via volatilization in the SUMMER experiment.

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Feedlot Manure Utilization As Influenced By Application Scheme And Diet, Andrea K. Watson, Galen E. Erickson, Terry J. Klopfenstein Klopfenstein, Richard K. Koelsch, Raymond E. Massey, Joseph H. Harrison Jan 2012

Feedlot Manure Utilization As Influenced By Application Scheme And Diet, Andrea K. Watson, Galen E. Erickson, Terry J. Klopfenstein Klopfenstein, Richard K. Koelsch, Raymond E. Massey, Joseph H. Harrison

Nebraska Beef Cattle Reports

The BFNMP$ program was utilized to study effects of dietary nitrogen (N) and phosphorus (P), and N volatilization on economics of manure utilization. Feeding high CP (18.7%) and P (0.5%) diets increased manure net value $6.92/ head compared to manure with a traditional diet (13.3% CP and 0.3% P) being fed. Spreading this manure on a four-year P basis is economical and environmentally friendly.

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Chemical Treatment Of Low-Quality Forages To Replace Corn In Cattle Finishing Diets, Adam L. Shreck, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Michael J. Cecava Jan 2012

Chemical Treatment Of Low-Quality Forages To Replace Corn In Cattle Finishing Diets, Adam L. Shreck, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Michael J. Cecava

Nebraska Beef Cattle Reports

A finishing experiment evaluated substitution of corn with crop residues in diets containing wet distillers grains. Corn stover, corn cobs, and wheat straw were alkaline treated at 50% moisture or fed without chemical treatment at 20% inclusion. Chemical treatment improved performance compared to untreated. Compared to control (10% roughage), treated diets had similar performance and carcass merit. Economic analysis revealed $6.46, $21.42, and $36.30 average profit per head advantage for diets containing treated residues relative to control when corn was priced at $3.00, $4.50, and $6.00 per bushel. Feeding chemically treated crop residues and wet distillers grains is a cost-effective …

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Reducing Particle Size Enhances Chemical Treatment In Finishing Diets, Adam L. Shreck, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Michael J. Cecava Jan 2012

Reducing Particle Size Enhances Chemical Treatment In Finishing Diets, Adam L. Shreck, Brandon L. Nuttelman, William A. Griffin Griffin, Galen E. Erickson, Terry J. Klopfenstein, Michael J. Cecava

Nebraska Beef Cattle Reports

Three hundred-sixty calf-fed steers were fed either treated or untreated corn stover that was previously ground through a 1-in or 3–in screen. Treated stover diets improved ADG and F:G compared to untreated. Reducing particle size improved ADG and F:G but did not influence DMI. Compared to a control diet with 5% roughage and 15 percentage units more corn, diets with 20% treated corn stover had similar F:G, ADG, DMI, and carcass quality. Up to 15% additional corn can be replaced with treated corn stover when diets contain wet distillers grains, and may be further enhanced by reducing particle size before …

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Factors Influencing Profitability Of Calf-Fed Steers Harvested At Optimum Endpoint, Mallorie F. Wilken, Adam L. Shreck, Larry L. Berger Berger Jan 2012

Factors Influencing Profitability Of Calf-Fed Steers Harvested At Optimum Endpoint, Mallorie F. Wilken, Adam L. Shreck, Larry L. Berger Berger

Nebraska Beef Cattle Reports

Four years of data from calf-fed steers were utilized in determining factors that affect profitability of cattle marketed at an optimum endpoint. Profitability was evaluated on a live weight basis assuming $112/cwt selling price and $180/cwt dressed price. Profit was compared as corn price and Choice-Select spread increased. Overall, carcass weight was the dominant factor in determining profitability. However, at $7 corn, feed efficiency had the most influence on profit. As expected, yield grade decreased and marbling score increased in importance as Choice- Select spread increased. Under these scenarios, profitability was greatly affected by hot carcass weight, with efficiency being …

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Impact Of Sorting Prior To Feeding Zilpaterol Hydrochloride On Feedlot Steers, Erin M. Hussey, Galen E. Erickson, Brandon L. Nuttelman Nuttelman, William A. Griffin, Terry J. Klopfenstein, Kyle J. Vander Pol Jan 2012

Impact Of Sorting Prior To Feeding Zilpaterol Hydrochloride On Feedlot Steers, Erin M. Hussey, Galen E. Erickson, Brandon L. Nuttelman Nuttelman, William A. Griffin, Terry J. Klopfenstein, Kyle J. Vander Pol

Nebraska Beef Cattle Reports

Crossbred yearling steers (n = 1000; 755 ± 23 lb) were utilized to evaluate effects of sorting and feeding zilpaterol hydrochloride (Zilmax®) on feedlot performance, carcass characteristics, and economics. Treatments were: unsorted negative control (–CON); unsorted Zilmax fed positive control (+CON); and three treatments where the heaviest 20% of steers within the pen were identified at beginning (EARLY), 100 days from harvest (MIDDLE), or 50 days from harvest (LATE) and marketed 28 days earlier. Dry matter intake was not different. Gain and G:F were improved by feeding Zilmax. Carcasses from the +CON and steers sorted EARLY, MIDDLE, and …

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Condensed Distillers Solubles And Beef Shelf Life, Kimberley A. Varnold, Chris R. Calkins, Asia L. Haack Haack, Jerilyn E. Hergenreder, Siroj Pokharel, Lasika S. Senaratne, Anna C. Pesta, Galen E. Erickson Jan 2012

Condensed Distillers Solubles And Beef Shelf Life, Kimberley A. Varnold, Chris R. Calkins, Asia L. Haack Haack, Jerilyn E. Hergenreder, Siroj Pokharel, Lasika S. Senaratne, Anna C. Pesta, Galen E. Erickson

Nebraska Beef Cattle Reports

Condensed distillers solubles were fed to cattle at 0, 9, 18, 27, or 36% inclusion. There were no effects on objective steak color, subjective discoloration, Warner-Bratzler shear force, moisture content, fat content, or oxidation values. Diet did not affect polyunsaturated fatty acid levels in meat, but the control diet had higher total unsaturated fatty acids and monounsaturated fatty acids than all other treatments. Feeding condensed distillers solubles to cattle has no detrimental effects on shelf life.

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Effects Of Antioxidants On Beef In Low And High Oxygen Packages, Spencer W. Bolte, Lasika S. Senaratne-Lenagala, Chris R. Calkins Calkins, Siroj Pokharel, Kimberley A. Varnold Jan 2012

Effects Of Antioxidants On Beef In Low And High Oxygen Packages, Spencer W. Bolte, Lasika S. Senaratne-Lenagala, Chris R. Calkins Calkins, Siroj Pokharel, Kimberley A. Varnold

Nebraska Beef Cattle Reports

Color, lipid, and protein stability of beef strip loin steak treated with different antioxidants (tocopherol, tertiary butyl hydroquinone, rosemary, or combinations of two of the antioxidants) and packaged in low oxygen (2-5% O2) or high oxygen (80% O2) modified atmosphere packages were studied. The application of tertiary butyl hydroquinone on steaks prior packaging (either in low- or high-oxygen modified atmosphere packages) was significantly effective in minimizing color and lipid oxidation during retail display. Under modified atmosphere packaging (lowor high-oxygen modified atmosphere packaging), oxidation of myoglobin color pigments and lipids were unrelated to beef tenderness.

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Dietary Antioxidants And Beef Tenderness During Retail Display In High O2, Lasika S. Senaratne-Lenagala, Chris R. Calkins, Siroj Pokharel Pokharel, Amilton S. De Mello Jr., Martin A. Andersen, Stephanie A. Furman Jan 2012

Dietary Antioxidants And Beef Tenderness During Retail Display In High O2, Lasika S. Senaratne-Lenagala, Chris R. Calkins, Siroj Pokharel Pokharel, Amilton S. De Mello Jr., Martin A. Andersen, Stephanie A. Furman

Nebraska Beef Cattle Reports

Aged (8 and 29 days) strip loins, from cross-bred steers fed dry-rolled corn-based finishing diets containing 0 or 30% wet distillers grains with a synthetic antioxidant blend (AGRADO®PLUS) were packaged in high oxygen modified atmosphere packages (80% O2:20% CO2) and studied for decreased tenderness compared to steaks packaged in oxygen-permeable film during retail display. Steaks aged longer and packaged in high oxygen modified atmosphere packages decreased in tenderness, likely due to increased protein oxidation (more carbonyls and less free thiols), during retail display. Feeding AGRADO PLUS tended to decrease tenderness and increased protein oxidation during retail …

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