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Full-Text Articles in Animal Sciences
Benchmarking The Differences Between Cow And Beef Muscles, Laura B. Mink, Chris R. Calkins, D. Dwain Johnson, Alex M. Stelzleni, Bucky L. Gwartney
Benchmarking The Differences Between Cow And Beef Muscles, Laura B. Mink, Chris R. Calkins, D. Dwain Johnson, Alex M. Stelzleni, Bucky L. Gwartney
Nebraska Beef Cattle Reports
Some muscles from the different populations of cows evaluated have similar chemical and physical properties to muscles from A-maturity, USDA Select grade cattle. Perhaps those muscles from cows could be utilized in a manner that would increase their value. Fifteen carcasses were selected from five populations (fed beef cows, non-fed beef cows, fed dairy cows, non-fed dairy cows, and Select grade beef) and nine muscles per carcass were characterized. Most muscles from cows were darker in color, had higher pH values, and had greater heme iron content than muscles from younger cattle, which may be undesirable to consumers. Supplemental technology …
Effects Of Corn Moisture And Degradable Intake Protein Concentration On Finishing Cattle Performance, Joshua R. Benton, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken, Kyle J. Vander Pol
Effects Of Corn Moisture And Degradable Intake Protein Concentration On Finishing Cattle Performance, Joshua R. Benton, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken, Kyle J. Vander Pol
Nebraska Beef Cattle Reports
A finishing trial was conducted to determine the effects of corn moisture and degradable intake protein level on cattle performance. Diets consisted of 65% processed corn, either dry-rolled, high-moisture at 24% or 30% moisture, or reconstituted dry corn at 28% or 35% moisture. Degradable intake protein levels were evaluated by adding 0%, 0.45% or 0.90% urea (DM basis). Supplementing 0.45% urea increased performance and sufficiently met degradable intake protein requirements. Diets containing high-moisture and reconstituted corn improved cattle performance compared to diets containing dry-rolled corn. Increasing the moisture of ensiled corn further enhanced the feeding value of corn by improving …
Effect Of High Roughage And High Energy Diets On Body Temperature, Sheryl L. Colgan, Terry L. Mader
Effect Of High Roughage And High Energy Diets On Body Temperature, Sheryl L. Colgan, Terry L. Mader
Nebraska Beef Cattle Reports
Four heifers were used in two trials comparing the effect of high energy and high roughage diets on three body temperature measurements. Body temperatures were measured in the vagina, in the ear canal near the tympanic membrane, and in the rumen. The high roughage diet lowered all three measures of body temperatures as compared with the high energy diet. Vaginal, tympanic, and ruminal temperature all appeared to effectively measure body temperature as they followed the same diurnal cycle; however, ruminal temperatures were, on average, 0.5 to 1.4°F higher than other body temperature measures.
Comparison Of Two Development Systems For March-Born Replacement Beef Heifers, Kelly W. Creighton, Jacqueline A. Musgrave, Terry J. Klopfenstein, Richard T. Clark, Don C. Adams
Comparison Of Two Development Systems For March-Born Replacement Beef Heifers, Kelly W. Creighton, Jacqueline A. Musgrave, Terry J. Klopfenstein, Richard T. Clark, Don C. Adams
Nebraska Beef Cattle Reports
A three-year study (2001-2003) was conducted to determine the effect of development system on reproductive performance of first-calf heifers. March-born heifers (n=261) were developed to reach either 55% of mature body weight (MBW) before a 45-day breeding season or 50% of MBW before a 60-day breeding season. Extending the breeding season 15 days for heifers developed to 50% of MBW prior to the first breeding season resulted in equal pregnancy, calving and weaning rates to heifers developed to 55% of MBW. Furthermore, the reduction in development costs in the 50% of MBW system more than offset the reduced income from …
Evaluation Of Initial Implants For Finishing Steers, Jeffrey D. Folmer, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Chris D. Reinhardt, Bill D. Dicke, Jim S. Drouillard
Evaluation Of Initial Implants For Finishing Steers, Jeffrey D. Folmer, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Chris D. Reinhardt, Bill D. Dicke, Jim S. Drouillard
Nebraska Beef Cattle Reports
A commercial feedlot experiment utilizing 12 pens and 1038 steers evaluated initial implant strategies for feedlot steers. Steers were administered either Revalor-IS® or Synovex S® at initial processing. Both treatment groups received Revalor-S® as a terminal implant. Revalor-IS® as an initial implant improved hot carcass weight and carcass adjusted final weight; however, there was no effect on any other measure of performance or carcass characteristics. Selling steers on a carcass merit basis resulted in a similar return per head for both implant strategies. Reduced-dose combination implants may improve hot carcass weight and carcass adjusted final weight with no impact on …
Reproductive Response In Heifers Fed Soybeans During Post Weaning Development, Heidi L. Harris, Andrea S. Cupp, Kelly W. Creighton, Rex Davis, James R. Teichert, Richard N. Funston
Reproductive Response In Heifers Fed Soybeans During Post Weaning Development, Heidi L. Harris, Andrea S. Cupp, Kelly W. Creighton, Rex Davis, James R. Teichert, Richard N. Funston
Nebraska Beef Cattle Reports
Three experiments were conducted to determine effects of soybeans on reproduction in heifers. In Experiment 1, heifers received whole soybeans or control diet with wet corn gluten feed for 110 days. Heifers receiving soybeans had decreased synchronization rate and delayed estrous response. Diet did not affect AI conception, AI pregnancy, or final pregnancy rates. In Experiments 2 and 3, heifers received supplements of ground soybeans or dried distillers grains. Heifers in Experiment 2 were predominantly prepubertal and supplemented 161 days. Heifers in Experiment 3 were postpubertal and supplemented 30 days. Heifers fed soybeans had larger dominant follicles than those fed …
Direct-Fed Microbial Products For Escherichia Coli O157:H7 In Market Ready Feedlot Cattle, Robert E. Peterson, David R. Smith, Jeffrey D. Folmer, Galen E. Erickson, Susan Hinkley, Rodney A. Moxley
Direct-Fed Microbial Products For Escherichia Coli O157:H7 In Market Ready Feedlot Cattle, Robert E. Peterson, David R. Smith, Jeffrey D. Folmer, Galen E. Erickson, Susan Hinkley, Rodney A. Moxley
Nebraska Beef Cattle Reports
A clinical trial was conducted during the summers of 2002 and 2003 to evaluate the effect of a direct-fed microbial product (DFM) on the prevalence of E. coli O157:H7 in feces of feedlot steers. The DFM consisted of Lactobacillus acidophilus (NPC 747) fed at the rate of 1x109 colony forming units (CFUs) per head per day. Treatments included supplemental DFM or no supplemental DFM. Feedlot steers supplemented with DFM were 35% less likely to shed E. coli O157:H7 in the feces compared with steers that were not supplemented with the DFM. Finishing performance was not affected by adding a DFM …
Pre-Rigor Water Injection And Post-Rigor Sodium Citrate Treatment On Beef Tenderness, Bethany M. Sitz, Pennapa Matayompong, Christian D. Perversi, Chris R. Calkins
Pre-Rigor Water Injection And Post-Rigor Sodium Citrate Treatment On Beef Tenderness, Bethany M. Sitz, Pennapa Matayompong, Christian D. Perversi, Chris R. Calkins
Nebraska Beef Cattle Reports
Thoracic limbs from 20 beef steers were used as post-rigor controls, prerigor controls (removed pre-rigor), or treated with combinations of sodium citrate and/or water to evaluate the effect of citrate on meat tenderness. Shear force values on steaks from the infraspinatus, supraspinatus and triceps brachii muscles revealed citratetreated muscles were more tender than water and post-rigor control treatments. It appears sodium citrate can tenderize meat independent of water injection.
Nebraska 2004 Beef Cattle Report (Complete Volume)
Nebraska 2004 Beef Cattle Report (Complete Volume)
Nebraska Beef Cattle Reports
Contents
Cow-Calf
An Evaluation of Economic Efficiencies of Two Beef Systems from Calving to Harvest
A System for Wintering Spring-calving Bred Heifers Without Feeding Hay
Effect of Gestation and Supplementation on Intake of Low-quality Forage
Grazing
A Review of Corn Stalk Grazing on Animal Performance and Crop Yield
Feed Values for Annual Forages in Western Nebraska
Urea Inclusion in Forage Based Diets Containing Dried Distillers Grains
Effect of Distillers Grains or Corn Supplementation Frequency on Forage Intake and Digestibility
Dried Distillers Grains as a Grazed Forage Supplement
Finishing
Effects of Corn Bran and Degradable Protein Source on Microbial Protein Estimated …
Effect Of Wet And Dry Distillers Grains Plus Solubles And Supplemental Fat Level On Performance Of Yearling Finishing Cattle, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken
Effect Of Wet And Dry Distillers Grains Plus Solubles And Supplemental Fat Level On Performance Of Yearling Finishing Cattle, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken
Nebraska Beef Cattle Reports
Two finishing trials were conducted to compare the addition of fat from either wet or dry distillers byproducts (WDGS; DDGS) to that provided from one of two commercially available fat sources (corn oil, Trial 1; tallow, Trial 2). In Trial 1, feed conversion and ADG decreased linearly as level of corn oil increased, while feed conversion and ADG were improved numerically as the level of WDGS increased in the diet. In Trial 2, no differences in performance were observed comparing cattle fed dry distillers grains plus solubles to cattle fed diets containing tallow. WDGS provided 12 and 17% more net …
Cow Muscle Profiling: A Comparison Of Chemical And Physical Properties Of 21 Muscles From Beef And Dairy Cow Carcasses, Mike L. Buford, Chris R. Calkins, D. Dwain Johnson, Bucky L. Gwartney
Cow Muscle Profiling: A Comparison Of Chemical And Physical Properties Of 21 Muscles From Beef And Dairy Cow Carcasses, Mike L. Buford, Chris R. Calkins, D. Dwain Johnson, Bucky L. Gwartney
Nebraska Beef Cattle Reports
About 43% of the meat from cow carcasses is sold into the boxed beef trade. This research was conducted to compare muscles from beef and dairy cows in an effort to identify optimal uses for cow muscles. Twenty-one muscles from beef and dairy cow carcasses were analyzed for objective color, total heme-iron, total collagen, pH, expressible moisture and proximate composition. Wide variation was observed for all properties measured. Effects of breed type on all measured traits were minimal except in the case of percent moisture. These results indicate muscles from beef and dairy cows are similar in chemical and physical …
Wet Corn Gluten Feed And Alfalfa Hay Levels In Dry-Rolled Corn Finishing Diets, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken, Ronald U. Lindquist
Wet Corn Gluten Feed And Alfalfa Hay Levels In Dry-Rolled Corn Finishing Diets, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken, Ronald U. Lindquist
Nebraska Beef Cattle Reports
One hundred ninety-two yearling steers were fed 132 days (June to October) to determine if roughage levels could be reduced in dry-rolled corn finishing diets containing wet corn gluten feed (WCGF) and to evaluate the effects on N volatilization. Finishing diets contained either 0 or 35% WCGF and 0, 3.75, or 7.5% alfalfa hay. Intake, ADG, and carcass weight increased as level of alfalfa hay increased, or when WCGF was fed. Feed conversions of cattle fed 35% WCGF were improved 4.4% compared to conversions of cattle fed no WCGF at 0% alfalfa hay. Within 35% WCGF diets, efficiency decreased as …
Evaluation Of Initial Implants For Finishing Heifers, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Gary Sides, Chris Reinhardt, Bill Dicke, Jim S. Drouillard
Evaluation Of Initial Implants For Finishing Heifers, Travis B. Farran, Galen E. Erickson, Terry J. Klopfenstein, Gary Sides, Chris Reinhardt, Bill Dicke, Jim S. Drouillard
Nebraska Beef Cattle Reports
A commercial feedyard experiment evaluated initial implant strategies for feedlot heifers. Heifers were administered either Revalor-IH or Synovex-H at initial processing, with both treatment groups receiving Revalor-200 as a common terminal implant. Implanting heifers initially with Revalor-IH improved feed efficiency and ADG compared to heifers implanted initially with Synovex-H. In addition, Revalor- IH implanted heifers had higher marbling scores while 58% more carcasses achieved the upper two-thirds Choice category. There were no differences in USDA yield grades. Selling Revalor- IH implanted heifers on a carcass merit basis returned $14.22/head more than Synovex-H implanted heifers. New reduced-dose initial implants can improve …
Vaccination And Direct Fed Microbials As Intervention Strategies For Reduction Of E. Coli O157:H7 In Feedlot Steers, Jeffrey D. Folmer, Casey N. Macken, Galen E. Erickson, Terry J. Klopfenstein, Rodney A. Moxley, David R. Smith, Susanne Hinkley, Andrew A. Potter, B. Brett Finley
Vaccination And Direct Fed Microbials As Intervention Strategies For Reduction Of E. Coli O157:H7 In Feedlot Steers, Jeffrey D. Folmer, Casey N. Macken, Galen E. Erickson, Terry J. Klopfenstein, Rodney A. Moxley, David R. Smith, Susanne Hinkley, Andrew A. Potter, B. Brett Finley
Nebraska Beef Cattle Reports
A clinical trial was conducted to evaluate effects of two intervention strategies on the prevalence of E. coli O157:H7 shedding by feedlot steers using 384 steers and 48 pens. Intervention strategies were a direct fed microbial or vaccination against E. coli O157:H7. No differences in performance or carcass yield were observed for direct fed microbial or vaccination treatments, compared to the control. Vaccination significantly reduced the prevalence of E. coli O157:H7. In addition, we also observed a non-significant decrease in the prevalence of E. coli O157:H7 with inclusion of the direct fed microbial.
Delayed Implanting Improves Quality Grade In Steer Calves, Richard N. Funston, Don C. Adams, Rex Davis, James R. Teichert
Delayed Implanting Improves Quality Grade In Steer Calves, Richard N. Funston, Don C. Adams, Rex Davis, James R. Teichert
Nebraska Beef Cattle Reports
One hundred steer calves were used to evaluate the effect of delaying initial implanting on feedlot and carcass characteristics. One-half the steers were implanted with Synovex S® after a 14 day acclimation period, the remainder were implanted 30 days after the 14 day acclimation period. All calves were re-implanted 112 days after the beginning of the study with Synovex Choice® and harvested 100 days later. Neither final weight (1269 lb) nor ADG (3.74 lb/day) were affected by implant regimen. Delayed implant steers had a higher percentage grading Choice (92 vs 68%). Delaying implanting resulted in a 24% increase in cattle …
Phosphorus Requirement For Finishing Heifers, Bobbi Gene Geisert, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken
Phosphorus Requirement For Finishing Heifers, Bobbi Gene Geisert, Galen E. Erickson, Terry J. Klopfenstein, Casey N. Macken
Nebraska Beef Cattle Reports
Sixty head of crossbred heifers (614 lb initial BW) were individually fed one of five levels of phosphorus of 0.10, 0.17, 0.24, 0.31, 0.38 % of diet DM with supplemental P from monosodium phosphate. Heifers were fed an energy-dense diet composed primarily of corn starch and corn fiber to minimize P from corn. When compared to the other four levels, heifers fed at the 0.10 % P level had lower DMI, ADG and final BW. Heifers fed 0.10%P had lower plasma P concentration. Breakpoint analysis of ADG suggests that the P requirement for finishing heifers is 0.115% P of diet …
Crop Performance And Soil Properties Of Sites Previously Used For Production Of Beef Cattle Manure Compost, Daniel Ginting, Bahman Eghball, Daniel T. Walters, Charles A. Francis, Terry J. Klopfenstein, Casey Wilson, Galen E. Erickson
Crop Performance And Soil Properties Of Sites Previously Used For Production Of Beef Cattle Manure Compost, Daniel Ginting, Bahman Eghball, Daniel T. Walters, Charles A. Francis, Terry J. Klopfenstein, Casey Wilson, Galen E. Erickson
Nebraska Beef Cattle Reports
This study was established on sites that had three or seven years of compost production history. Corn, wheat, barley, sorghum and alfalfa were planted in 2001. In the first year, wheat, barley and sorghum performed better than corn in the windrow areas while alfalfa did not even establish because of excessive salt in the soil. Soil electrical conductivity, K and Na in the 0-6 inch depth under windrows were high and caused soil crusting and poor germination and crop yields. Growing salt tolerant crops, such as barley, can rehabilitate sites used for composting and the process can be accelerated by …
Conjugated Linoleic Acid Metabolism And Body Fat Loss In Mice, Kim Hargrave, Brett Meyer, Jess L. Miner
Conjugated Linoleic Acid Metabolism And Body Fat Loss In Mice, Kim Hargrave, Brett Meyer, Jess L. Miner
Nebraska Beef Cattle Reports
Mice were fed conjugated linoleic acid (CLA) with or without fish oil or aspirin, which deplete tissue arachidonic acid and block arachidonic acid metabolism, respectively. Mice fed fish oil did not lose body fat when supplemented with CLA but mice fed soy oil did. Aspirin did not alter CLA-induced body fat loss. CLA may be metabolized to an isomer of arachidonic acid to induce a loss of body fat. However, this body fat loss is apparently not mediated via alteration of prostaglandin synthesis. Understanding the regulation of body fat by CLA may offer insight into the mechanisms of body fat …
Hydrogen Sulfide Concentration In Vicinity Of Beef Cattle Feedlots, Richard K. Koelsch, Bryan L. Woodbury, David E. Stenberg, Daniel N. Miller, Dennis D. Schulte
Hydrogen Sulfide Concentration In Vicinity Of Beef Cattle Feedlots, Richard K. Koelsch, Bryan L. Woodbury, David E. Stenberg, Daniel N. Miller, Dennis D. Schulte
Nebraska Beef Cattle Reports
A field survey of Total Reduced Sulfur (TRS) concentrations in the vicinity of beef cattle feedlots was conducted to compare field observations against current regulatory thresholds. It was observed that TRS levels in the vicinity of beef cattle feedlots are not likely to exceed current regulatory thresholds used by Nebraska. It was further noted concentration of TRS varies with air temperature and time of day. However, wet feedlot surface conditions had almost no impact upon observed TRS concentrations. Feedlots typically do not contribute significant hydrogen sulfide emissions and are unlikely to produce concentrations in excess of current Nebraska Department of …
Effect Of Gestation And Supplementation On Intake Of Low-Quality Forage, Tim W. Loy, Don C. Adams, Terry J. Klopfenstein, Jacqueline A. Musgrave, Andrew F. Applegarth
Effect Of Gestation And Supplementation On Intake Of Low-Quality Forage, Tim W. Loy, Don C. Adams, Terry J. Klopfenstein, Jacqueline A. Musgrave, Andrew F. Applegarth
Nebraska Beef Cattle Reports
Eighteen spring-calving heifers were paired by expected calving date and assigned to treatment. Treatments were a high undegradable intake protein supplement (CON) or one based on dry corn gluten feed (TRT). Heifers were fed to consume low-quality hay ad libitum. Supplement type did not affect body condition, milk production, or calf ADG. TRT heifers lost less weight than CON heifers. There was no effect of supplement on forage intake. Intake changed cubically with respect to calving; decreasing 17% during the three weeks prior to calving, and increasing 18% the week after calving.
A System For Wintering Spring-Calving Bred Heifers Without Feeding Hay, Tim W. Loy, Don C. Adams, Terry J. Klopfenstein, Dillon Feuz, Jacqueline A. Musgrave, Burke Teichert
A System For Wintering Spring-Calving Bred Heifers Without Feeding Hay, Tim W. Loy, Don C. Adams, Terry J. Klopfenstein, Dillon Feuz, Jacqueline A. Musgrave, Burke Teichert
Nebraska Beef Cattle Reports
Two systems for wintering pregnant, March-calving heifers were compared over two years on a commercial Nebraska ranch. The ranch’s standard management system (CON) included grazed forage, supplement and hay. The alternative system (TRT) relied on grazed forage and higher levels of supplement, with no hay. Treatment effects on weight and body condition changes differed between years. Calves nursing TRT heifers tended to gain more weight. Two-year-old pregnancy rates did not differ. Partial budget analysis suggests the TRT system reduced expense by $7 per heifer, while maintaining a high level of performance.
Effects Of Corn Bran And Degradable Protein Source On Microbial Protein Estimated From Spot Urine Samples In Heifers, R. Allen Mcdonald, Terry J. Klopfenstein, Galen E. Erickson, Tim W. Loy, Kimberly M. Whittet
Effects Of Corn Bran And Degradable Protein Source On Microbial Protein Estimated From Spot Urine Samples In Heifers, R. Allen Mcdonald, Terry J. Klopfenstein, Galen E. Erickson, Tim W. Loy, Kimberly M. Whittet
Nebraska Beef Cattle Reports
A metabolism trial was conducted in finishing heifers to determine if allantoin in spot urine samples could be a predictor of microbial CP (MCP) supply. When corn bran replaced high moisture corn, ruminal pH was higher and microbial efficiency and flow were greater. Estimated microbial efficiency and flow were not different for SBM compared to urea as a source of degradable protein. Daily variation in intake was reflected in MCP estimates. Within day variation for MCP estimates was consistent and small. Estimates of MCP from allantoin in spot urine samples followed NRC estimates. Results demonstrate that allantoin is an effective …
Effects Of Corn Bran And Degradable Protein Source On Finishing Heifer Performance And Estimates Of Microbial Protein Supply In High Moisture Corn Finishing Diets, R. Allen Macdonald, Terry J. Klopfenstein, Galen E. Erickson, Casey N. Macken, Kimberly M. Whittet
Effects Of Corn Bran And Degradable Protein Source On Finishing Heifer Performance And Estimates Of Microbial Protein Supply In High Moisture Corn Finishing Diets, R. Allen Macdonald, Terry J. Klopfenstein, Galen E. Erickson, Casey N. Macken, Kimberly M. Whittet
Nebraska Beef Cattle Reports
A feeding trial was conducted to evaluate performance and estimates of microbial CP (MCP) supply in high moisture corn finishing diets with corn bran addition and different sources of degradable protein. Corn bran increased intake throughout the feeding period but decreased performance after day 42. Microbial efficiency and MCP were unaffected by corn bran addition, but MCP increased with increasing urea level. Performance was increased for the first 42 days when SBM was fed relative to urea, but microbial efficiency and MCP were unaffected. Supplemental DIP level did not affect MCP estimates. Estimates of MCP from allantoin were low and …
Consumer Acceptance And Value Of Beef From Various Countries Of Origin, Bethany M. Sitz, Chris R. Calkins, Wendy J. Umberger, Dillon M. Feuz
Consumer Acceptance And Value Of Beef From Various Countries Of Origin, Bethany M. Sitz, Chris R. Calkins, Wendy J. Umberger, Dillon M. Feuz
Nebraska Beef Cattle Reports
To determine consumer acceptance and value of beef from various countries, 12 taste panels were conducted in each of two cities. Two pairs of beef strip steaks were evaluated - domestic versus Australian grass-fed and domestic versus Canadian. Consumers gave significantly higher scores for flavor, tenderness and overall acceptability to domestic steaks compared to Australian grass-fed steaks and Canadian steaks. A significantly higher value also was placed on the domestic samples compared to Australian grass-fed steaks ($3.68/lb versus $2.48/lb) and Canadian steaks ($3.95/lb versus $3.57/lb). U.S. consumers preferred and were willing to pay significantly more for domestic steaks than Australian …
Consumer Preference And Value Of Beef With Country-Of-Origin Labeling, Bethany M. Sitz, Chris R. Calkins, Wendy J. Umberger, Dillon M. Feuz
Consumer Preference And Value Of Beef With Country-Of-Origin Labeling, Bethany M. Sitz, Chris R. Calkins, Wendy J. Umberger, Dillon M. Feuz
Nebraska Beef Cattle Reports
The 2002 Farm Bill mandates country- of-origin labeling for beef and other items by 2004. A majority (69.2%) of consumers in Denver and Chicago preferred a fresh beef strip steak with a label guaranteeing the meat came from a U.S. animal over an unlabeled steak. On average, consumers were willing to pay 18.7% more ($0.81/lb) for labeled product. When 17 attributes were rated for their desirability when purchasing beef, country-of- origin labeling ranked ninth; “freshness” and “inspected for food safety” were the most popular selection criteria. Food safety concerns were the primary reason consumers preferred beef labeled with country of …
Urea Inclusion In Forage Based Diets Containing Dried Distillers Grains, Leslie Aaron Stalker, Terry J. Klopfenstein, Don C. Adams, Galen E. Erickson
Urea Inclusion In Forage Based Diets Containing Dried Distillers Grains, Leslie Aaron Stalker, Terry J. Klopfenstein, Don C. Adams, Galen E. Erickson
Nebraska Beef Cattle Reports
Two experiments evaluated supplemental degradable intake protein requirements when dried distillers grains were fed as an energy source in forage-based diets. Diets were formulated to be greater than 100 g/day deficient in degradable intake protein but with excess metabolizable protein. In both experiments, no response in performance was observed when urea was added to the diet. Sufficient urea was probably recycled to correct the degradable intake protein deficiency. These studies indicate adding urea to meet the degradable intake protein requirement is not necessary when dried distillers grains are fed as an energy source in forage-based diets.
Effect Of Age, Pregnancy, And Diet On Urinary Creatinine Excretion In Heifers And Cows, Kimberly M. Whittet, Terry J. Klopfenstein, Galen E. Erickson, Tim W. Loy, R. Allen Mcdonald
Effect Of Age, Pregnancy, And Diet On Urinary Creatinine Excretion In Heifers And Cows, Kimberly M. Whittet, Terry J. Klopfenstein, Galen E. Erickson, Tim W. Loy, R. Allen Mcdonald
Nebraska Beef Cattle Reports
A series of total urine collections was conducted to evaluate effect of age, pregnancy and diet on creatinine excretion in heifers and cows. To test effect of age on creatinine excretion, 31 animals ranging from 5 to 104 months of age were fed a hay diet supplemented with dried distillers grains (DDG). There was no difference in creatinine excretion across age. Cows fed the same diet were sampled to determine effect of pregnancy on creatinine excretion. Pregnancy did not affect daily creatinine excretion. Two collection periods were conducted to determine if diet alters creatinine excretion. In period 1, heifers were …
Sodium Chloride Levels For Finishing Feedlot Heifers, Casey B. Wilson, Galen E. Erickson, Casey N. Macken, Terry J. Klopfenstein
Sodium Chloride Levels For Finishing Feedlot Heifers, Casey B. Wilson, Galen E. Erickson, Casey N. Macken, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A trial was conducted to establish a NaCl level that maximizes intake and performance while minimizing excretion of Na to the environment. Fifty-nine individually fed yearling heifers (803 lb) were fed 113 days. NaCl was added to a corn-based feedlot diet at levels of 0, 0.125, 0.25, 0.375 and 0.5 % of diet DM. No difference in ADG, DMI or F/G were observed with different levels of NaCl. Results suggest NaCl inclusion in the diet likely is not necessary to maintain acceptable feedlot performance.
Impact Of Cleaning Frequency On Nitrogen Balance In Open Feedlot Pens, Casey B. Wilson, Galen E. Erickson, Casey N. Macken, Terry J. Klopfenstein
Impact Of Cleaning Frequency On Nitrogen Balance In Open Feedlot Pens, Casey B. Wilson, Galen E. Erickson, Casey N. Macken, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Pen cleaning frequency of feedlot pens was evaluated during the summer of 2001 and 2002. Dry matter, organic matter and nitrogen recoveries were evaluated on a per head basis. Cleaning pens monthly compared to cleaning at the end of the feeding period resulted in significantly more DM, OM and N recovered. Cleaning pens every month increased N removal by 7.0 lb per steer (49.9% increase) above manure N removed at the end of the feeding period.
A Review Of Corn Stalk Grazing On Animal Performance And Crop Yield, Casey B. Wilson, Galen E. Erickson, Terry J. Klopfenstein, Richard J. Rasby, Don C. Adams, Ivan G. Rush
A Review Of Corn Stalk Grazing On Animal Performance And Crop Yield, Casey B. Wilson, Galen E. Erickson, Terry J. Klopfenstein, Richard J. Rasby, Don C. Adams, Ivan G. Rush
Nebraska Beef Cattle Reports
The highest cost to beef cow-calf and backgrounding operations is the feeding of stored feeds in winter months. Nebraska has an abundance of corn fields available for grazing following harvest. Utilization of corn crop residue is quite effective in reducing feed costs. There are a number of important considerations associated with residue utilization. Stocking rates, diet quality, genetically modified corn, subsequent crop yields and supplementation are discussed.