Open Access. Powered by Scholars. Published by Universities.®
Articles 631 - 660 of 1237
Full-Text Articles in Animal Sciences
Fiber Digestibility And Rumen Ph For Diets Containing Wet Corn Gluten Feed Or Wet Distillers Grains With Solubles, Crystal D. Buckner, Kelsey Rolfe, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson
Fiber Digestibility And Rumen Ph For Diets Containing Wet Corn Gluten Feed Or Wet Distillers Grains With Solubles, Crystal D. Buckner, Kelsey Rolfe, Nathan Meyer, Terry J. Klopfenstein, Galen E. Erickson
Nebraska Beef Cattle Reports
Seven ruminally cannulated steers were used to evaluate fiber digestibility and rumen pH for diets containing 35 or 88% wet corn gluten feed (WCGF) or 35% wet distillers grains with solubles (WDGS). These diets were top-dressed with or without a direct-fed microbial (DFM). Interactions were observed for DM and NDF digestibility. Feeding 88% WCGF decreased DM digestibility, but NDF digestibility increased especially with the DFM. Rumen pH was greatest for steers fed 88% WCGF and lowest for steers fed 35% WCGF.
Distillers Grains And Livestock Are Important To Ethanol Energy And Greenhouse Gas Balance, Virgil R. Bremer, Adam J. Liska, Haishun Yang, Daniel T. Walters, Galen E. Erickson, Terry J. Klopfenstein, Richard K. Koelsch, Kenneth G. Cassman
Distillers Grains And Livestock Are Important To Ethanol Energy And Greenhouse Gas Balance, Virgil R. Bremer, Adam J. Liska, Haishun Yang, Daniel T. Walters, Galen E. Erickson, Terry J. Klopfenstein, Richard K. Koelsch, Kenneth G. Cassman
Nebraska Beef Cattle Reports
A life cycle assessment of the impact of distillers grains plus solubles (DGS) on mitigation of energy and greenhouse gas (GHG) emissions comparing corn ethanol to gasoline demonstrates the importanceof feeding wet DGS (WDGS) to feedlot cattle to optimize the environmental benefit of ethanol production relative to gasoline. Ethanol produced in Nebraska has a superior environmentalimpact compared to ethanol produced in Iowa or Texas.
Tympanic Temperature Of Steers Fed Different Levels Of Metabolic Energy Intake During Summer And Winter, Rodrigo A. Arias, Terry L. Mader
Tympanic Temperature Of Steers Fed Different Levels Of Metabolic Energy Intake During Summer And Winter, Rodrigo A. Arias, Terry L. Mader
Nebraska Beef Cattle Reports
Tympanic temperatures (TT) of steers were recorded during July (8 days) and January (6 days). In each experiment, steers were fed 11, 18, or 25 Mcal/day ME in a roughage-based diet, or 18, 25, or 32 Mcal/day ME in a concentrate-based diet. Tympanic temperatures were greater during summer than during winter. Also, steers fed a concentrate diet had greater TT than those fed a roughage diet. Linear equations were obtained to estimate TT of cattle for summer and winter seasons. During the winter, TT response to MEI was dependent on the type of diet. Resultsdemonstrate that increases in the energy …
Effects Of Feeding Wet Distillers Grains Plus Solubles And Vitamin E On Beef Tenderness And Color Under Different Packaging Systems, Amilton S. De Mello, Kanae Watanabe, Chris R. Calkins, Lasika S. Senaratne, Timothy P. Carr, Galen E. Erickson
Effects Of Feeding Wet Distillers Grains Plus Solubles And Vitamin E On Beef Tenderness And Color Under Different Packaging Systems, Amilton S. De Mello, Kanae Watanabe, Chris R. Calkins, Lasika S. Senaratne, Timothy P. Carr, Galen E. Erickson
Nebraska Beef Cattle Reports
The effects of feeding wet distillers grains plus solubles (WDGS), vitamin E supplementation (E), and modified atmosphere packaging (MAP) on Warner Bratzler shear force (WBSF) and sensorial tenderness were investigated in m. longissimus lumborum aged 7 or 21 days. Steers (n = 90) were allocated to dietary treatments consisting of corn or 35% WDGS with 0, 100, 300, 500, and 1000 I.U. of E per head daily. Afteraging, muscles were displayed for 5 days under O2 permeable film, high O2 and low O2 atmospheres. Feeding 1000E extendedcolor stability of permeable film-packaged steaks during retail display. Feeding WDGS led to higher …
Fatty Acid Profile Of Beef From Steers Fed Wet Distillers Grains Plus Solubles (Wdgs) And Vitamin E, Amilton S. De Mello, Chris R. Calkins, Kanae Watanabe, Lasika S. Senaratne, Timothy P. Carr, Galen E. Erickson, Judy A. Driskell
Fatty Acid Profile Of Beef From Steers Fed Wet Distillers Grains Plus Solubles (Wdgs) And Vitamin E, Amilton S. De Mello, Chris R. Calkins, Kanae Watanabe, Lasika S. Senaratne, Timothy P. Carr, Galen E. Erickson, Judy A. Driskell
Nebraska Beef Cattle Reports
The aim of this work was to investigate the fatty acid profile of m. teres major (TER) and m. infraspinatus (INF) from steers fed 0 or 40% WDGS (DM basis) with or without 500 I.U. of vitamin E/steer daily for 100 days. Thirty-two steers were allocated to 4 treatments: Corn; Corn + vit. E; 40% WDGS; or 40% WDGS + vit. E. After 7 days of aging, 2 TER and 2 INF muscles were excised from the shoulder clods of each animal. Fatty acids were analyzed from raw TER and INF, pan fried TER and INF, and grilled INF. For …
Reproductive Aging Influences Ovarian Function In Beef Cows, Robert A. Cushman, Jennifer R. Wood, Rachael G. Slattery, Debra T. Clopton, Jacqueline Smith, Kevin A. Beavers, William E. Pohlmeier, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Reproductive Aging Influences Ovarian Function In Beef Cows, Robert A. Cushman, Jennifer R. Wood, Rachael G. Slattery, Debra T. Clopton, Jacqueline Smith, Kevin A. Beavers, William E. Pohlmeier, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Nebraska Beef Cattle Reports
Anti-Müllerian Hormone (AMH) has been associated with follicle number and age of the ovary. Therefore, our hypothesiswas that AMH was a biomarker for both follicle number and ovarian function in the beef cow. Ovaries were collected by flank laparotomy. The number of follicles increased as cows aged from 1.5 to 6 years and began to decrease thereafter; however, the size of the ovary continued to increase with advanced age. Expression of the AMH gene increased with increasing follicle number in 2-year-old beef cows. These results suggest that heifers with larger ovaries will have greater numbers of follicles and greater productivity, …
2010 Nebraska Beef Cattle Report
2010 Nebraska Beef Cattle Report
Nebraska Beef Cattle Reports
Cow/Calf
Effect of Calving Season and Wintering System on Cow Performance
Extending Grazing in Heifer Development Systems Decreases Cost Without Compromising Production
Post Weaning Management of Heifer Calves Impacts ADG and Feed Efficiency as Pregnant Heifers
Estrous Synchronization Increases Early Calving Frequency, Which Enhances Steer Progeny Value
Reproductive Aging Influences Ovarian Function in Beef Cows
Comparison of Feeding Wet Distillers Grains in a Bunk or on the Ground to Cattle Grazing Native Sandhills Winter Range.. 19 Supplementing Wet Distillers Grains Mixed with Low Quality Forage to Grazing Cow/Calf Pairs
Evaluation of Storage Covers When Wet Distillers Byproducts Are Mixed and …
Genetic Analysis Of Mature Size In American Angus Cattle, Marco G. Dib, L. Dale Van Vleck, Matthew L. Spangler
Genetic Analysis Of Mature Size In American Angus Cattle, Marco G. Dib, L. Dale Van Vleck, Matthew L. Spangler
Nebraska Beef Cattle Reports
Genetic parameters for weights and heights of mature cows were estimated using a repeatability model from field data provided by the American Angus Association. The results showed that the heritabilities of both traits were large, and correlations between them were positive and strong. Selection on either trait should easily produce a response, and changing one should lead to a correlated response in the other. Genetic trend was generally for increasing cow weight over the last 25 years.
Forage Quality And Grazing Performance Of Beef Cattle Grazing Brown Midrib Grain Sorghum Residue, Jacob R. Geiss, Andrea K. Watson, Galen E. Erickson, Terry J. Klopfenstein, Josh R. Benton, William A. Griffin, Robert B. Mitchell, Jeffrey F. Pedersen
Forage Quality And Grazing Performance Of Beef Cattle Grazing Brown Midrib Grain Sorghum Residue, Jacob R. Geiss, Andrea K. Watson, Galen E. Erickson, Terry J. Klopfenstein, Josh R. Benton, William A. Griffin, Robert B. Mitchell, Jeffrey F. Pedersen
Nebraska Beef Cattle Reports
Two hybrids of grain sorghum, the AWheatland x RTx430 hybrid (CON) and its near isogenic brown midrib counterpart (BMR), were used in a 65-day residue grazing experiment. Grain sorghum was planted in 4 replications for each treatment within the same field, and grazed with 6 steers/replication. Samples of the sorghum residue were collected on days 1, 31, and 60 for neutral detergent fiber (NDF) and in vitro NDF digestibility analysis. Steers grazing the BMR treatment gained 1.55 lb/day while the steers grazing the CON treatment gained 1.32 lb/day (P = 0.14). The BMR and CON were similar in NDF (73.5%), …
Supplementing Dried Distillers Grains To Steers Grazing Cool Season Meadow, William A. Griffin, Brandon L. Nuttleman, Terry J. Klopfenstein, L. Aaron Stalker, Richard N. Funston, Jacqueline A. Musgrave
Supplementing Dried Distillers Grains To Steers Grazing Cool Season Meadow, William A. Griffin, Brandon L. Nuttleman, Terry J. Klopfenstein, L. Aaron Stalker, Richard N. Funston, Jacqueline A. Musgrave
Nebraska Beef Cattle Reports
Two experiments evaluated the performance response of supplementing dried distillers grains plus solubles (DDGS) to steers grazing cool season meadow. Steers were supplemented 0.0 or 0.6% of BW in Exp. 1, and 0.0, 0.6, or 1.2% of BW in Exp. 2. In Exp. 1, supplemented steers had 0.13 lb/day greater ADG. In Exp. 2, there was a linear response to supplementation level, with steers supplemented 1.2% of BW having greatest ADG. Diet samples indicate the differences were due to increased energy and not increased protein intake.
Relationship Of Metabolizable Protein Balance, Purine Derivative Excretion, And 3-Methyl Histidine Excretion To Feed Efficiency In Individually Fed Finishing Heifers, William A. Griffin, Kelsey Rolfe, Grant I. Crawford, Terry J. Klopfenstein, Galen E. Erickson, Phillip S. Miller, Ruth M. Diedrichsen
Relationship Of Metabolizable Protein Balance, Purine Derivative Excretion, And 3-Methyl Histidine Excretion To Feed Efficiency In Individually Fed Finishing Heifers, William A. Griffin, Kelsey Rolfe, Grant I. Crawford, Terry J. Klopfenstein, Galen E. Erickson, Phillip S. Miller, Ruth M. Diedrichsen
Nebraska Beef Cattle Reports
Individually fed heifers were used to determine the relationship of 3-methyl histidine, purine derivatives, and metabolizableprotein balance to feed efficiency. Heifers were fed finishing dietsthat were either deficient or sufficient in metabolizable protein. Urine samples were collected and analyzed for early, late, and entire feeding period concentrations of 3-methyl histidine, purine derivatives, and creatinine. Results from this study indicated a negative relationship between feed efficiency and metabolizable protein balance, and no relationship between 3-methyl histidine excretion and feed efficiency, suggesting that protein turnover and microbial protein synthesis are not related to feed efficiency
Sensory Attributes Of Beef From Steers Fed Field Peas, Jeremy H. Hinkle, Judson Vasconcelos, Stephanie A. Furman, Amilton S. De Mello Jr., Lasika S. Senaratne, Siroj Pokharel, Chris R. Calkins
Sensory Attributes Of Beef From Steers Fed Field Peas, Jeremy H. Hinkle, Judson Vasconcelos, Stephanie A. Furman, Amilton S. De Mello Jr., Lasika S. Senaratne, Siroj Pokharel, Chris R. Calkins
Nebraska Beef Cattle Reports
Field peas were fed at inclusion rates of 0, 10, 20 and 30% (DM basis) to 139 yearling steers (initial BW = 900 ± 68 lb). Choice grade strip loins and carcass data were collected from the Tyson Fresh Meats Plant in Lexington, Neb. Consumer sensory ratings and Warner-Bratzler shear force data were collected. Feeding field peas caused a cubicresponsein overall like (P = 0.009), tenderness (P = 0.006), and flavordesirabilityratings (P = 0.06), with the highest (most desirable) ratings occurring with 30% field peas. Shear force decreasedlinearly (P = 0.02) as field peas increased in the diet. These data …
Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, Luke M. Kovarik, Matt K. Luebbe, Richard J. Rasby, Galen E. Erickson
Effects Of Time Of Transporting Prior To Sale Date On Selling Weight Of Weaned Steer Calves, Luke M. Kovarik, Matt K. Luebbe, Richard J. Rasby, Galen E. Erickson
Nebraska Beef Cattle Reports
An experiment was conducted using 88 weaned steer calves to evaluate shrink difference when shipped at differing times prior to sale date. Two groups of calves were transported 24 hours prior to sale date, with one group being withheld from water and feed 2 hours prior to sale while the other group was not restricted. Another group (control) was transported 2 hours prior to the sale. All cattle were transported 95 miles and co-mingled at the sale facility prior to processing. Percent shrink for +1-Adlib, +1-R, and Control was 1.8, 2.2, and 0.6%, respectively.
Estrous Synchronization Increases Early Calving Frequency, Which Enhances Steer Progeny Value, Daniel M. Larson, Jacqueline A. Musgrave, Richard N. Funston
Estrous Synchronization Increases Early Calving Frequency, Which Enhances Steer Progeny Value, Daniel M. Larson, Jacqueline A. Musgrave, Richard N. Funston
Nebraska Beef Cattle Reports
Calving records collected between 2000 and 2008 at the Gudmundsen Sandhills Laboratory, Whitman, Neb., were used to determine the effect of estrous synchronization on calving distribution and the impact of time of calving on carcass characteristics. More synchronized cows calved during the first 21 days compared to non-synchronized cows, and calves born to synchronized dams were heavier at weaning. Calves born in the first 21 days of the calving season had greater carcass weights, marblingscores, and yield grades than later born calves. In addition, the percentage of steers grading premium choice or greater and the total carcass value declined as …
Post Weaning Management Of Heifer Calves Impacts Adg And Feed Efficiency As Pregnant Heifers, Daniel M. Larson, Tonya L. Meyer, Leslie Aaron Stalker, James R. Teichert, Richard N. Funston
Post Weaning Management Of Heifer Calves Impacts Adg And Feed Efficiency As Pregnant Heifers, Daniel M. Larson, Tonya L. Meyer, Leslie Aaron Stalker, James R. Teichert, Richard N. Funston
Nebraska Beef Cattle Reports
Replacement heifers were developed on cornstalks (Exp. 1, 2, and 3), dry lot (Exp. 1 and 2), or winter range (Exp. 3). In Exp. 1, pregnant heifers were individually fed during mid to late gestation. Heifers developed on cornstalks were more feed efficient than heifers developed in a dry lot. In Exp. 2 and 3, pregnant heifers grazed cornstalks during mid to late gestation. Heifers developed on cornstalks gained more and were more efficient, especially compared to heifers developed in a dry lot. These data provide evidence of an adaptive response to grazing low quality forages and may be beneficial …
Comparison Of Revalor-Xs Vs. Two Common Implant Strategies In Finishing Steers, Cody A. Nichols, Galen E. Erickson, Judson T. Vasconcelos, Justin J. Sindt, Robert L. Botts, Bill D. Dicke, D.J. Jordon, Robert J. Cooper, Tony L. Scott, Terry J. Klopfenstein
Comparison Of Revalor-Xs Vs. Two Common Implant Strategies In Finishing Steers, Cody A. Nichols, Galen E. Erickson, Judson T. Vasconcelos, Justin J. Sindt, Robert L. Botts, Bill D. Dicke, D.J. Jordon, Robert J. Cooper, Tony L. Scott, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A commercial feedlot experiment was performed to compare the effects of a Component TE-IS/TE-S with Tylan (TE-IS/S) implant strategy to a Component TE-200 with Tylan (TE-200) or a Revalor XS (Rev-XS) single implant strategy on performance and carcass characteristics of feedlot steers. Cattle receiving the TE-IS/S implants and the Rev-XS implant had greater (P < 0.05) final BW and lower F:G (P < 0.05) than the cattle that received the TE-200 treatment. Daily gain was improved (P = 0.04) when comparing TE-IS/S to TE-200, but intermediate for steers that received the Rev-XS treatment. Quality grade categories were unaffected by implant strategy. Cattle given TE-IS/TE-S had a greater number (P < 0.05) of yield grade 1 and 2 carcasses than other implant treatments, while cattle receiving TE-200 had greater (P < 0.01) yield grade 3 and 5 carcasses.
Comparison Of Revalor Xs To A Revalor Is / Revalor S Implant Strategy In Finishing Steers, Cody A. Nichols, Galen E. Erickson, Judson Vasconcelos, Marshall N. Streeter, Bill D. Dicke, D.J. Jordon, Robert J. Cooper, Tony L. Scott, Terry J. Klopfenstein
Comparison Of Revalor Xs To A Revalor Is / Revalor S Implant Strategy In Finishing Steers, Cody A. Nichols, Galen E. Erickson, Judson Vasconcelos, Marshall N. Streeter, Bill D. Dicke, D.J. Jordon, Robert J. Cooper, Tony L. Scott, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A commercial feedlot study compared effects of Revalor IS/Revalor S (RevIS-S) implant strategy to a Revalor XS (RevX) single implant strategy on performance and carcass characteristics of feedlot cattle. There were no differences (P > 0.90) in DMI, final BW, ADG, or F:G. Hot carcass weight, marbling score, 12th rib fat, LM area and calculated yield grade also were unaffected (P > 0.10) by implant strategy. The RevX treatment resulted in a greater (P < 0.01) percentage of Choice carcasses than RevIS-S. Cattle receiving Revalor XS performed similar to cattle implanted with RevIS-S using a traditional reimplant program.
Evaluation Of A New Single Implant Strategy Vs. Two Common Implant Strategies In Beef Finishing Steers, Cody A. Nichols, Judson Vasconcelos, Galen E. Erickson, Stephanie A. Furman, Justin J. Sindt, Terry J. Klopfenstein
Evaluation Of A New Single Implant Strategy Vs. Two Common Implant Strategies In Beef Finishing Steers, Cody A. Nichols, Judson Vasconcelos, Galen E. Erickson, Stephanie A. Furman, Justin J. Sindt, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A finishing trial was conducted to compare the response to three implant strategies on performance and carcasscharacteristics of feedlot steers: 1) ComponentTE-IS with Tylan followed with Component TE-S with Tylan (TE-IS/S); 2) Component TE-200 with Tylan (TE-200); or 3) Revalor XS (Rev-XS) single implant. Final BW, DMI and ADG were unaffected (P > 0.05) by implant strategy. Steers on the TE-IS/ S treatment had a lower (P < 0.01) feed:gain ratio (F:G) compared to those on the Rev-XS and TE-200 treatments. F:G calculated on a live basis was improved (P < 0.05) for reimplantedcattle compared to those on the TE-200 treatment; F:G for the Rev-XSwas intermediate. No differences (P > 0.05) were observed for HCW, 12th rib fat, percentage USDA Choice and calculated USDA yield grade among treatments. Cattle implanted with Rev-XS had greater (P < 0.05) marbling scores than those implanted with TE-IS/S. Carcasses from TE-IS/S implanted steers presented larger (P = 0.03) longissimus muscle areas than both the TE-200 and Rev-XS treatment groups. These results suggest that F:G was improved with reimplanting.
Comparing The Energy Value Of Wet Distillers Grains To Dry Rolled Corn In High Forage Diets, Brandon L. Nuttelman, Matt K. Luebbe, Terry J. Klopfenstein, Joshua R. Benton, Galen E. Erickson
Comparing The Energy Value Of Wet Distillers Grains To Dry Rolled Corn In High Forage Diets, Brandon L. Nuttelman, Matt K. Luebbe, Terry J. Klopfenstein, Joshua R. Benton, Galen E. Erickson
Nebraska Beef Cattle Reports
Sixty crossbred steers were used to compare the energy value of wet distillers grains (WDGS) to dry rolled corn (DRC) in high forage diets at three levels. DRC was included at 22.0, 41.0, and 60.0% of the diet (DM), and WDGS was included at 15.0, 25.0, and 35.0% of the diet (DM). Diets were formulated to meet degradable intake protein and metabolizable protein requirements. Cattle consuming WDGS gained more than DRC cattle. Average daily gain increased with increasing levels of DRC and WDGS. The energy value of WDGS was calculated using the National Research Council model (1996). In this study, …
Steak-Quality Meat From The Beef Heel, Siroj Pokharel, Chris R. Calkins, Amilton S. De Mello Jr., Lasika S. Senaratne, Jeremy B. Hinkle
Steak-Quality Meat From The Beef Heel, Siroj Pokharel, Chris R. Calkins, Amilton S. De Mello Jr., Lasika S. Senaratne, Jeremy B. Hinkle
Nebraska Beef Cattle Reports
This study was conducted to measure the shear force of beef heel (m. gastrocnemius) and to characterize the uncooked m. gastrocnemius for pH, water holding capacity, composition, and color. Ten heels were cut into steaks (for grilling) from the proximal to the distal end. Twenty additional heels were separated into lateral and medial portions; half were oven roasted and half were grilled as roasts. The proximal end steak was always less tender than the distal end steak. There were no differences in shear force between lateral and medial sides for any cooking treatment. The lateral side of heel has many …
Vaccination To Reduce The Prevalence Of Escherichia Coli O157:H7 In Feedlot Cattle Fed Wet Distillers Grains Plus Solubles, Amy R. Rich, Ashlynn N. Jepson, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, David R. Smith, Rodney A. Moxley
Vaccination To Reduce The Prevalence Of Escherichia Coli O157:H7 In Feedlot Cattle Fed Wet Distillers Grains Plus Solubles, Amy R. Rich, Ashlynn N. Jepson, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, David R. Smith, Rodney A. Moxley
Nebraska Beef Cattle Reports
A clinical trial in summer of 2008 evaluated effects of feeding 0 (CONTROL) or 40% wet distillers grains plus solubles (WDGS) with and without vaccination against E. coli O157:H7 on the probability of shedding E. coli O157:H7 in the feces. No interaction (P = 0.97) was observed between vaccination and diet for E. coli O157:H7 shedding. Steers fed WDGS were 2.1 times more likely (P < 0.01) to shed E. coli O157:H7 than cattle fed CONTROL. Vaccination resulted in cattle that were 43% less likely (P < 0.01) to test positive for E. coli O157:H7 than the unvaccinated cattle.
Supplementing Modified Wet Distillers Grains With Solubles To Long Yearling Steers Grazing Native Range, Kelsey Rolfe, Matt K. Luebbe, William A. Griffin, Terry J. Klopfenstein, Galen E. Erickson, Dennis E. Bauer
Supplementing Modified Wet Distillers Grains With Solubles To Long Yearling Steers Grazing Native Range, Kelsey Rolfe, Matt K. Luebbe, William A. Griffin, Terry J. Klopfenstein, Galen E. Erickson, Dennis E. Bauer
Nebraska Beef Cattle Reports
Modified wet distillers grains with solubles (MDGS) was supplemented on the ground to yearling steers with access to native range during summer grazing. Supplemented steers had greater ADG than non-supplemented steers and were heavier entering the feedlot. NRC energy equations determined that 1.0 lb supplementation of MDGS replaced 0.74 lb forage during summer grazing. Additionally, these data suggest response to MDGS may exceed response to dried distillers grains with solubles (DDGS) for gain during grazing, based on previous experiments.
Genetic And Phenotypic Parameter Estimates For Feed Intake And Other Traits In Growing Beef Cattle, Kelsey Rolfe, Merlyn K. Nielsen, Calvin L. Ferrell, Thomas G. Jenkins
Genetic And Phenotypic Parameter Estimates For Feed Intake And Other Traits In Growing Beef Cattle, Kelsey Rolfe, Merlyn K. Nielsen, Calvin L. Ferrell, Thomas G. Jenkins
Nebraska Beef Cattle Reports
The goal of this study was to estimate genetic and phenotypic parameters for growth, feed intake, feed efficiency, and temperament traits in a mixed-breed composite population of growing beef cattle. Intake and gain:feed (G:F) were moderately heritable; however, residual feed intake (RFI) was more heritable than other measures of feed efficiency. Adjusting RFI and G:F for carcass fatness had little effect on heritability and correlations with remaining traits. Flight speed was moderately heritable and highly repeatable. Flight speed was not highly correlated with measures of intake or feed efficiency. Some small breed effects were observed. High heritability estimates indicate that …
Plant And Animal Responses To Grazing Systems In The Nebraska Sandhills, Walter H. Schacht, Jerry D. Volesky, Mitchell B. Stephenson, Terry J. Klopfenstein, Don C. Adams
Plant And Animal Responses To Grazing Systems In The Nebraska Sandhills, Walter H. Schacht, Jerry D. Volesky, Mitchell B. Stephenson, Terry J. Klopfenstein, Don C. Adams
Nebraska Beef Cattle Reports
Short duration grazing (SDG) and deferred rotation (DR) were compared in a 10-year study conducted on uplandnativepastures in the northern NebraskaSandhills. Herbage production of cool-season grasses and sedges was less on the SDG pastures, although total herbage production (including warm and cool season herbage) did not differ consistently between the two grazing systems. The decline in diet quality (CP and IVOMD) through the 5-month grazing season did not differ consistently between the two systems, and ADG of spayed heifers was similar. The lack of increased forage production and animal performance responses to SDG indicate that the higher input costs associated …
Wet Distillers Grains Diets Supplemented With Vitamin E Alter The Mineral Composition Of Beef M. Longissimus Lumborum And M. Psoas Major, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Galen E. Erickson
Wet Distillers Grains Diets Supplemented With Vitamin E Alter The Mineral Composition Of Beef M. Longissimus Lumborum And M. Psoas Major, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Galen E. Erickson
Nebraska Beef Cattle Reports
Crossbred yearlings (n = 90) were allotted to one of 10 diets containing 0, 20 or 40% wet distillers grains (WDG) with or without vitamin E supplementation and distillers solubles (DS). Strip loin and tenderloin steaks were obtained and tested for their mineral (Ca, P, K, Mg, Zn, Fe, Mn, Cu, S, and Na) compositions using atomic absorption spectroscopy. Cattle fed DS diets had higher (P ≤ 0.05) levels of Ca, Fe, P, Mn, and S in strip loins than cattle fed non-DS diets. Feeding DS significantly reduced Mg and Na in tenderloins. Neither WDG nor vitamin E diets significantly …
Intramuscular Tenderness Mapping And Muscle Fiber Directions Of Small Muscles In The Beef Round, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Jeremy H. Hinkle, Siroj Pokharel
Intramuscular Tenderness Mapping And Muscle Fiber Directions Of Small Muscles In The Beef Round, Lasika S. Senaratne, Chris R. Calkins, Amilton S. De Mello Jr., Jeremy H. Hinkle, Siroj Pokharel
Nebraska Beef Cattle Reports
The intramuscular tenderness variation of m. pectineus (PT), m. sartorius (SR), m. gracilis (GL), m. vastus intermedius (VI), and m. vastus medialis (VM) was investigated. The PT, SR, VI, and VM muscles (n=10 each) were grilled as whole muscles, whereas the GL was grilled after cutting into anterior and posterior regions. Grilled muscles were cut into equal size sections perpendicular to the long axis from proximal to distal. Cores were prepared from each section and Warner-Bratzler shear force (WBSF) was measured. The overall mean WBSF values for PT, SR, VI, GL, and VM were 8.29, 9.79, 10.54, 10.47, and 9.35 …
Routine Hedging Of Corn Price For Calf-Fed And Yearling Production Systems, Rebecca M. Small, Darrell R. Mark, Terry J. Klopfenstein Klopfenstein
Routine Hedging Of Corn Price For Calf-Fed And Yearling Production Systems, Rebecca M. Small, Darrell R. Mark, Terry J. Klopfenstein Klopfenstein
Nebraska Beef Cattle Reports
Several corn hedging scenarios involving a combination of cash and futures market transactions were evaluated for calf-fed and yearling production systems. All yearling corn hedging scenarios assessed were effective in only slightly reducing profit risk, while the calf-fed corn hedging scenario actually increased profit risk. Calf-fed and yearling corn hedging scenarios generally generated positive average returns to hedging by lowering net corn prices. The yearling corn hedging scenarios initiated closer to feedlot placement were associated with greater average profits as compared to those hedges initiated when yearlings were initially purchased.
Determinants Of Profit Variability In Calf-Fed And Yearling Production Systems, Rebecca M. Small, Darrell R. Mark, Terry J. Klopfenstein Klopfenstein
Determinants Of Profit Variability In Calf-Fed And Yearling Production Systems, Rebecca M. Small, Darrell R. Mark, Terry J. Klopfenstein Klopfenstein
Nebraska Beef Cattle Reports
Factors that were determinants of profit variability in calf-fed and yearling beef production systems were identified and ranked. The analysis indicated cattle prices have the greatest influence on profit variation for both systems and on all backgrounding and finishing phases of the yearling system. Prices of feedstuffs (i.e., corn prices, wet corn gluten feed prices, and pasture and cornstalk rental rates) were the next most important factors explaining profit risk. Cattle performance variables and interest rates had the smallest impact on profit variation.
Evaluation Of Proternative Stress Formula And Proternative Continuous Fed Formula In A High Energy Feedlot Diet, Sarah J. Vanness, Matt K. Luebbe, Joshua R. Benton Benton, Galen E. Erickson, Terry J. Klopfenstein, Justin Sindt
Evaluation Of Proternative Stress Formula And Proternative Continuous Fed Formula In A High Energy Feedlot Diet, Sarah J. Vanness, Matt K. Luebbe, Joshua R. Benton Benton, Galen E. Erickson, Terry J. Klopfenstein, Justin Sindt
Nebraska Beef Cattle Reports
Cross-bred yearling steers were used in a feeding trial to compare the use of two different direct fed microbials (DFM), ProTernative CF (DFM-CF) and ProTernative SF (DFM-SF). The treatment design was a 2x2 factorial with a control (no DFM), DFM-CF, DFM-SF, and both (CF+SF). Diets consisted of 40% WCGF with high moisture corn with no feed additives other than the DFM treatments. No differences were observed in feedlot performance or carcass characteristics.
Relating Hydrogen Sulfide Levels To Polioencephalomalacia, Sarah J. Vanness, William A. Griffin, Virgil R. Bremer Bremer, Galen E. Erickson, Terry J. Klopfenstein
Relating Hydrogen Sulfide Levels To Polioencephalomalacia, Sarah J. Vanness, William A. Griffin, Virgil R. Bremer Bremer, Galen E. Erickson, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Data from a finishing trial and a metabolism study were used to relate incidence of polioencephalomalacia (polio) with ruminal hydrogen sulfide gas concentration. The finishing trial included different inclusion levels of byproducts with differing alfalfa hay levels. Similar diets were used in the metabolism study. The feedlot trial had 12 cases of polio on a 75% byproduct diet with no alfalfa and no cases of polio when alfalfa was included at 7.5%. The metabolism study reported the highest concentration of H2S with the high byproduct diet with no grass hay, and lower concentrations when grass hay was included. These data …