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Full-Text Articles in Animal Sciences
Dried Distillers Grains Supplementation Of Calves Grazing Corn Residue, Kristin H. Gustad, Terry J. Klopfenstein, Galen E. Erickson, Kyle J. Vander Pol, James C. Macdonald, Matthew A. Greenquist
Dried Distillers Grains Supplementation Of Calves Grazing Corn Residue, Kristin H. Gustad, Terry J. Klopfenstein, Galen E. Erickson, Kyle J. Vander Pol, James C. Macdonald, Matthew A. Greenquist
Nebraska Beef Cattle Reports
Dried distillers grains (DDGS) were fed to weanling steer calves grazing nonirrigated corn residue to determine daily gain response and residue intake response to increasing levels of DDGS (from 1.5 to 6.5 lb/day in 1 lb increments). The DDGS was fed individually using Calan electronic gates. Daily gain increased from 0.9 (1.5 lb DDGS) to 1.8 (6.5 lb DDGS) lb/day . Forage intake decreased from 11.3 (1.5 lb DDGS) to 8.3 (6.5 lb DDGS) lb/day . Results provide information for selecting a DDGS supplementation level to achieve a target gain.
Effect Of Dietary Inclusion Of Wet Distillers Grains On Feedlot Performance Of Finishing Cattle And Energy Value Relative To Corn, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Matthew A. Greenquist, Thomas Robb
Effect Of Dietary Inclusion Of Wet Distillers Grains On Feedlot Performance Of Finishing Cattle And Energy Value Relative To Corn, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Matthew A. Greenquist, Thomas Robb
Nebraska Beef Cattle Reports
An experiment evaluated the effects of six dietary inclusions of wet distillers grain plus solubles (WDGS) on feedlot performance and carcass characteristics of yearling steers, and also evaluated the energy value of WDGS relative to corn. Treatments consisted of 0, 10, 20, 30, 40, and 50% (DM basis) dietary inclusion of WDGS. Final BW, DMI, and ADG increased quadratically, while feed: gain decreased quadratically as WDGS inclusion increased from 0 to 50% of DM. No differences in carcass characteristics were observed among treatments. Energy value of WDGS relative to corn was above 100% for all inclusion levels and decreased (178 …
Effects Of Field Pea Level And Processing In Finishing Diets, Erin M. Fendrick, Ivan G. Rush, David D. Baltensperger, Dennis R. Brink, Galen E. Erickson
Effects Of Field Pea Level And Processing In Finishing Diets, Erin M. Fendrick, Ivan G. Rush, David D. Baltensperger, Dennis R. Brink, Galen E. Erickson
Nebraska Beef Cattle Reports
Cattle were fed coarse rolled or whole field peas in a finishing diet to determine impact on finishing performance. The peas were included in the diet DM at 0%, 15%, and 30%. There were no significant differences in ADG, F:G, or carcass characteristics among processing methods or field pea level. DMI was significantly different due to level and not processing of peas. The DMI increased as the field peas inclusion increased to 30% the diet DM Field peas can be fed whole and replace corn in the diet up to 30%.
Managing Phosphorus In Beef Feedlot Operations, William F. Kissinger, Galen E. Erickson, Terry J. Klopfenstein, Richard K. Koelsch
Managing Phosphorus In Beef Feedlot Operations, William F. Kissinger, Galen E. Erickson, Terry J. Klopfenstein, Richard K. Koelsch
Nebraska Beef Cattle Reports
A commercial feedlot study determined manure nutrient flow in six feedlots using a corn and by-product based diet with an average P content of 0.39% (DM basis), and a range of 0.34 to 0.48%. Mass balances for N and P were conducted on each pen. The average feed nutrient intake was 0.52 lb N/head/day (64.0 + 7.6 lb/animal fed) and 0.09 lb P/head/day (10.9 + 2.2 lb/animal fed). Based upon averages from the 6,366 head of cattle, 11.5% of the feed nitrogen and 16.9% of the feed phosphorus were retained by the animal with the remaining nutrients excreted. The harvested …
The Influence Of Cooking Rate And Holding Time On Beef Flavor, Jennie M. James, Chris R. Calkins
The Influence Of Cooking Rate And Holding Time On Beef Flavor, Jennie M. James, Chris R. Calkins
Nebraska Beef Cattle Reports
Seven muscles from 10 beef carcasses were cooked quickly or slowly and held 0 or 1 hour to explore the influence of cooking rate and holding time on beef flavor. Off-flavor intensity was lowest when beef was cooked slowly (on a 300°F grill instead of a 480°F grill) and when it was held for 1 hour prior to sensory evaluation. The infraspinatus (flat iron) had the least intense off-flavor and the vastus intermedius (knuckle bottom) had the most intense off-flavor. Slow cooking or holding for 1 hour prior to consumption reduced the intensity of off-flavor in value cuts.
Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Richard N. Funston, Terry J. Klopfenstein
Effects Of Pre- And Postpartum Nutrition On Reproduction In Spring Calving Cows And Calf Feedlot Performance, Leslie Aaron Stalker, Don C. Adams, Richard N. Funston, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Crossbred, spring calving cows were used in a three-year experiment to evaluate the influence of supplemental protein prepartum and grazing sub-irrigated meadow postpartum on pregnancy rates and calf feedlot performance. Feeding supplement prepartum improved body condition score pre-calving and pre-breeding and increased the percentage of live calves at weaning but did not affect pregnancy rate or steer calf feedlot performance. Grazing sub-irrigated meadow did not change pregnancy rates or feedlot performance.
Effects Of Supplementing Lactating, June-Calving Cows On Second-Calf Pregnancy Rates, Aaron Stalker, Kelly Creighton, Jacqueline A. Musgrave, Don C. Adams, Terry J. Klopfenstein
Effects Of Supplementing Lactating, June-Calving Cows On Second-Calf Pregnancy Rates, Aaron Stalker, Kelly Creighton, Jacqueline A. Musgrave, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A two year experiment evaluated the influence of supplementation pre-breeding on second-calf pregnancy rates in June-calving heifers. For 60 days before start of the breeding season, heifers were assigned to one of two treatments: supplementation of dried distillers grains (1.5 lb/day) to meet energy and metabolizable protein requirements or unsupplemented control. Supplementation improved body condition score during the supplementation period and resulted in increased body condition score at weaning. In year 1, feeding supplement to the dam did not change calf weight gain but feeding supplement increased calf weight in year 2. Pregnancy rates were 90% and not changed by …
A System For Wintering Beef Heifers Using Dried Distillers Grains, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
A System For Wintering Beef Heifers Using Dried Distillers Grains, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
A two-year experiment compared two systems for wintering pregnant heifers. The standard system used by the ranch served as the control (CON) and the treatment system (TRT) included a dried distillers grains based supplement. Heifers in the TRT system were heavier and had greater body condition score at end of supplementation. Calving difficulty, percentage of live calves weaned and subsequent pregnancy rate were similar between systems. Calves born to heifers in the TRT system were heavier at birth and weaning. The TRT system cost $10.47/heifer less than the CON system and resulted in equivalent or improved heifer and calf growth …
Feeding Melengestrol Acetate To Bulls Prior To And At Puberty Alters Body Weight, And Hormone Concentration, April Tefler, Ryann Mcfee, Rebecca C. Bott, Joseph Schulz, Debra T. Clopton, Jeffrey W. Bergman, Karl V. Moline, Kathy Hanford, Andrea S. Cupp
Feeding Melengestrol Acetate To Bulls Prior To And At Puberty Alters Body Weight, And Hormone Concentration, April Tefler, Ryann Mcfee, Rebecca C. Bott, Joseph Schulz, Debra T. Clopton, Jeffrey W. Bergman, Karl V. Moline, Kathy Hanford, Andrea S. Cupp
Nebraska Beef Cattle Reports
Melengestrol acetate (MGA), which is commonly used in the beef industry to manipulate ovarian activity of females, was fed to bulls at two times during development, prepubertal (5.5 to 7.5 months) and peri-pubertal (6.5 to 9.5 months), to determine effects on testes size, scrotal circumference, body weight, and/or hormone production. We can conclude that feeding bulls MGA during the prepubertal and peri-pubertal time can alter body weight and testosterone production.
Vascular Endothelial Growth Factor Mrna Isoforms 120 And 164 Are Differentially Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Rebecca C. Bott, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Vascular Endothelial Growth Factor Mrna Isoforms 120 And 164 Are Differentially Regulated Prior To Ovulation, Robin A. Ten Broeck, Debra T. Clopton, Jeremy L. Martin, Rebecca C. Bott, Karl V. Moline, Jeffrey W. Bergman, Andrea S. Cupp
Nebraska Beef Cattle Reports
Vascular Endothelial Growth Factor (VEGF) is produced by cells surrounding the egg in the follicle prior to ovulation. If VEGF is inhibited, ovulation does not occur. The VEGF gene can be spliced to produce different protein isoforms which have specific functions. Our objective was to determine if VEGF 120 and 164 mRNA isoforms are differentially regulated in the preovulatory follicle. From our studies, VEGF isoforms are differentially regulated during both CL regression and after a simulated LH surge. Differences observed in VEGF isoform regulation may allow for manipulation of ovulation in the beef cow.
Bull Exposure, When Combined With A Seven-Day Mga Synchronization, Does Not Enhance Conception Rates In Cows, Michelle M. Baltes, Rebecca C. Bott, Ryann Mcfee, Joseph S. Schulz, Candice F. Toombs, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Bull Exposure, When Combined With A Seven-Day Mga Synchronization, Does Not Enhance Conception Rates In Cows, Michelle M. Baltes, Rebecca C. Bott, Ryann Mcfee, Joseph S. Schulz, Candice F. Toombs, Jeffrey W. Bergman, Karl V. Moline, Andrea S. Cupp
Nebraska Beef Cattle Reports
The purpose of the current experiments was to determine if cows exposed to sterile bulls (epididyectomized) in combination with a 7-day MGA treatment would have an advantage in conception rates to cows not exposed to bulls. Bull exposure increased percentage of cows cycling prior to synchronization and reduced the time from calving to initiation of cycling. Overall there was not an increase in conception rates to timed TAI or in total pregnancy rates in bull exposed MGA treated cows when compared to cows not exposed to bulls.
Effects Of Supplementing Dried Distillers Grains To Steers Grazing Summer Sandhill Range, Sarah Morris, James C. Macdonald, Terry J. Klopfenstein, Don C. Adams, Rex Davis, James R. Teichert
Effects Of Supplementing Dried Distillers Grains To Steers Grazing Summer Sandhill Range, Sarah Morris, James C. Macdonald, Terry J. Klopfenstein, Don C. Adams, Rex Davis, James R. Teichert
Nebraska Beef Cattle Reports
Yearling steers continuously grazed summer native Sandhill range, with supplementation of varying levels of dried distillers grains with solubles (DDGS): 0.26, 0.51, 0.77, and 1.03% BW. Forage intakes were predicted using an equation based on TDN. Forage intakes linearly decreased as level of DDGS increased. Average daily gain linearly increased as level of DDGS increased. Steers were finished and slaughtered. No significant differences were found in feedlot performance or carcass data. Economical analyses were conducted and suggest supplementing DDGS is profitable. Increased gain from supplementing yearling steers DDGS while grazing summer range did not affect feedlot performance and can be …
Influence Of Dried Distillers Grains Supplementation Frequency On Forage Digestibility And Growth Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
Influence Of Dried Distillers Grains Supplementation Frequency On Forage Digestibility And Growth Performance, Leslie Aaron Stalker, Don C. Adams, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Two experiments evaluated the influence of dried distillers grains supplementation frequency on forage digestibility and growth of yearling steers. In Exp. 1, treatments were dried distillers grains fed at 16.7% of the diet either daily, every other day or every third day. Diet DM, OM and NDF digestibility decreased linearly as dried distillers grains supplementation occurred less frequently. In Exp. 2, 48 crossbred steers were used in a two-year study to compare corn/soybean meal with dried distillers grains as winter supplements. Steers performed similarly when supplements were fed 6 days/week but performance was decreased when dried distillers grains was fed …
Effect Of Corn Hybrid And Processing Method On Site And Extent Of Nutrient Digestibility Using The Mobile Bag Technique, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Effect Of Corn Hybrid And Processing Method On Site And Extent Of Nutrient Digestibility Using The Mobile Bag Technique, Matt K. Luebbe, Galen E. Erickson, Terry J. Klopfenstein, Wayne Fithian
Nebraska Beef Cattle Reports
The influence of corn hybrid and processing method onsite and extent of DM, starch, and protein digestibility was determined using the mobile bag technique. Samples consisted of three hybrids with known digestibility and feeding value processed as either dryrolled corn (DRC) or high-moisture corn (HMC). Ruminal and total tract nutrient digestibilities were greater for HMC compared to DRC. Differences among hybrids existed for all variables measured except ruminal starch digestibility and degradable intake protein. Undegradable intake protein (UIP) digestibility was greater for HMC compared to DRC (77.8 and 73.7%, respectively). However, UIP was lower for HMC than DRC. Differences among …
Influence Of Corn Hybrid On Kernel Traits, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Lenis Alton Nelson, David S. Jackson
Influence Of Corn Hybrid On Kernel Traits, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Lenis Alton Nelson, David S. Jackson
Nebraska Beef Cattle Reports
Sixty commercially available corn hybrids were used to identify kernel traits that may be used as an indicator of feeding value to cattle. Three separate tests were conducted and 12 traits were evaluated for each hybrid. Most production traits were negatively correlated or not correlated to physical traits making them less indicative of cattle performance compared to some lab techniques. Based on the dry matter disappearance in the rumen, a harder kernel will be more efficiently digested. An approximately 10% change in dry matter disappearance is shown between the most and least digestible hybrid. Physical kernel traits can be helpful …
Influence Of Corn Hybrid, Kernel Traits, And Dry Rolling Or Steam Flaking On Digestibility, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Wayne A. Fithian, Patrick M. Clark, David S. Jackson
Influence Of Corn Hybrid, Kernel Traits, And Dry Rolling Or Steam Flaking On Digestibility, Flint W. Harrelson, Galen E. Erickson, Terry J. Klopfenstein, Wayne A. Fithian, Patrick M. Clark, David S. Jackson
Nebraska Beef Cattle Reports
Seventy-two commercially available corn hybrids were used to quantify the existing range in kernel characteristics shown to correlate with improved feeding value to cattle. Twelve hybrids were steam flaked at two different bulk densities. Hybrids were tested for kernel size, hardness, in situ digestibility, and starch use. For dry rolled corn, a 27% difference in dry matter disappearance was found across hybrids. For flaking, a 6% to 29% improvement over dry rolled corn was observed. An 8% to 36% advantage for flaking in starch digestibility was also found. The results of this trial suggest there can be an interaction between …
Economic Optimum Use Of Wet Distillers Grains In Feedlots, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Darrell R. Mark
Economic Optimum Use Of Wet Distillers Grains In Feedlots, Kyle J. Vander Pol, Galen E. Erickson, Terry J. Klopfenstein, Darrell R. Mark
Nebraska Beef Cattle Reports
An economic analysis was conducted using feedlot performance, current feed ingredient prices, trucking, and cost of feeding inputs to determine economics of feeding wet distillers grains plus solubles (WDGS) at five dietary inclusions. The analysis also incorporated positive corn basis into the model. Cattle returns are greatest when incorporated WDGS is fed at 30 to 40% of DM at feedlots located between 0 and 60 miles from the plant. As distance of the feedlot increases from 60 to 100 miles from the plant, optimum inclusion is between 20 and 30% of dietary DM. Either a 5 or 10 cent positive …
Effect Of Min-Ad Ruminal Buffer And Roughage Level On Ruminal Metabolism And Extent Of Digestion In Steers, Grant I. Crawford, Terry J. Klopfenstein, Galen E. Erickson, Clint Krehbiel, Greg Nunnery
Effect Of Min-Ad Ruminal Buffer And Roughage Level On Ruminal Metabolism And Extent Of Digestion In Steers, Grant I. Crawford, Terry J. Klopfenstein, Galen E. Erickson, Clint Krehbiel, Greg Nunnery
Nebraska Beef Cattle Reports
Six ruminally and duodenally cannulated steers were used in a metabolism experiment to determine effects of adding a ruminal buffer to diets containing increasing levels of roughage. Steers were fed high-concentrate diets containing 4.5, 9.0, or 13.5% alfalfa hay with or without 1.0% MIN-AD ruminal buffer. There were no differences observed in feed intake, ruminal metabolism, or total tract digestibility due to MIN-AD inclusion in the diet. Average pH increased and time below pH 5.6 and pH 5.3 decreased with increasing alfalfa level. Total tract digestibility decreased with increasing alfalfa level. Addition of MIN-AD to high-concentrate diets did not produce …
Vaccination For Escherichia Coli O157:H7 In Market Ready Feedlot Cattle, Robert Peterson, David R. Smith, Rodney A. Moxley, Terry J. Klopfenstein, Galen E. Erickson, Susan Hinkley
Vaccination For Escherichia Coli O157:H7 In Market Ready Feedlot Cattle, Robert Peterson, David R. Smith, Rodney A. Moxley, Terry J. Klopfenstein, Galen E. Erickson, Susan Hinkley
Nebraska Beef Cattle Reports
A clinical trial was conducted during the summer of 2004 to evaluate the effects of vaccinating cattle against Escherichia coli on the probability of detecting E. coli O157:H7 in feces and colonization at the terminal rectum. The probability for vaccinated or nonvaccinated cattle to shed E. coli O157:H7 in feces was not significantly different. However, the probability for steers to be colonized by E. coli O157:H7 in the terminal rectum was greatly reduced for vaccinated (0.3%) compared with nonvaccinated (20.0%) steers. We concluded that the vaccine was effective at reducing colonization of E. coli O157:H7 at the terminal rectum of …
Growth Promoting Agents And Season Effects On Blood Metabolite And Body Temperature Measures, Terry L. Mader, Wanda Kreikemeier
Growth Promoting Agents And Season Effects On Blood Metabolite And Body Temperature Measures, Terry L. Mader, Wanda Kreikemeier
Nebraska Beef Cattle Reports
To assess growth promoting agents efficacy among seasons, triiodothyronine, thyroxine, blood metabolites, and tympanic temperature were measured in summer and winter studies. Within each season, pens of heifers were assigned to one of six growth promotant treatments. Season by growth promotant treatment interactions (P < 0.05) indicated that the combination of estrogen and trenbolone acetate increased triiodothyronine in the winter, whereas trenbolone acetate alone decreased both triiodothyronine and thyroxine in the winter. Maximum tympanic temperature was greater (P < 0.01) in the summer than in the winter, while minimum tympanic temperature was lowered (P < 0.01) in the summer. Changes in blood metabolite levels resulting from the use of growth promotants do not appear to substantially influence seasonal changes in body temperature.
Inhibition Of Methanogenesis In Rumen Fluid Cultures, Eric Behlke, Razvan Dumitru, Stephen Ragsdale, James M. Takacs, Jess L. Miner
Inhibition Of Methanogenesis In Rumen Fluid Cultures, Eric Behlke, Razvan Dumitru, Stephen Ragsdale, James M. Takacs, Jess L. Miner
Nebraska Beef Cattle Reports
We identified 32 compounds that inhibit 13 to 100% of the methane produced by in vitro cultures of rumen fluid and have the potential to inhibit enteric methanogenesis in ruminant animals. The compounds are analogous to a substrate in the methane biosynthesis pathway, and may inhibit methane production yet not affect other organisms in the rumen.
Livestock Risk Protection Insurance Vs. Futures Hedging: Basis Risk Implications, Rik R. Smith, Darrell R. Mark, Allen L. Prosch
Livestock Risk Protection Insurance Vs. Futures Hedging: Basis Risk Implications, Rik R. Smith, Darrell R. Mark, Allen L. Prosch
Nebraska Beef Cattle Reports
This study analyzes the benefit of Livestock Risk Protection (LRP) insurance to cattle producers in reducing basis risk. Nebraska producers insuring fed cattle with LRP realize a basis risk reduction of one-third to one-half compared to futures or options hedging. Nebraska feeder cattle producers using LRP experience only a slight reduction in basis risk. Reduced basis risk results in smaller errors when forecasting basis levels for future time periods. With more accurate basis forecasts, producers can better estimate net hedged selling prices and, consequently, future cash flows.
Factors Affecting Nitrogen Losses As Measured Using Forced-Air Wind Tunnels And Nitrogen Mass Balance, Dawn M. Sherwood, Galen E. Erickson, Terry J. Klopfenstein, Dennis D. Schulte, Richard R. Stowell
Factors Affecting Nitrogen Losses As Measured Using Forced-Air Wind Tunnels And Nitrogen Mass Balance, Dawn M. Sherwood, Galen E. Erickson, Terry J. Klopfenstein, Dennis D. Schulte, Richard R. Stowell
Nebraska Beef Cattle Reports
Two experiments using wind tunnels were conducted in conjunction with a N mass balance to evaluate the effect of clinoptilolite zeolite clay on ammonia (NH3) losses. Ammonia losses were measured using the wind tunnels during the last six weeks of each feeding period and compared to losses calculated using a N mass balance. Nitrogen loss, pH, surface DM and N contents, and soil and surface temperatures were assessed as possible contributing factors. There were no differences in NH3 volatilization due to dietary treatments. N loss was influenced by date, % DM, surface N and soil temperature. As …
Valuing Feedyard Management Education, Experience, And Expertise, Rik R. Smith, Darrell R. Mark
Valuing Feedyard Management Education, Experience, And Expertise, Rik R. Smith, Darrell R. Mark
Nebraska Beef Cattle Reports
This study uses a mail survey to determine the value Nebraska feedyard operators place on education, experience, and area of expertise in new assistant manager hires. Using conjoint analysis, calculations are made that estimate the marginal value of moving from one level of these attributes to another. Results show that operators preferred higher levels of education and experience. However, relevant experience was preferred over formal education. As an area of expertise, animal health was valued highest by operators of feedyards in all size categories for new assistant managers. Personnel management was valued lowest. Results suggest prospective assistant managers can maximize …
Alternative Enhancement Strategies For Beef Muscles, Donald A. Moss, Chris R. Calkins
Alternative Enhancement Strategies For Beef Muscles, Donald A. Moss, Chris R. Calkins
Nebraska Beef Cattle Reports
USDA Select grade semitendinosus (eye of round) muscles from 12 cattle were used for controls (non-enhanced); salt and phosphate enhanced; water enhanced, or enhanced by addition of 10% of a solution containing 1, 3, or 5% sodium citrate to evaluate the effect of citrate on meat tenderness. Shear force and trained taste panel ratings were not different, (P > 0.05) between controls and citrate-treated muscles. Less than half of the enhancement solution was retained by the muscle. Perhaps the high connective tissue content of the semitendinosus or poor retention of the enhancement solution contributed to these results, which are in conflict …
Wet Distillers Grains Plus Solubles Do Not Increase Liver-Like Off-Flavors In Cooked Beef, Blaine Jenschke, Jennie James, Kyle Vander Pol, Chris R. Calkins, Terry J. Klopfenstein
Wet Distillers Grains Plus Solubles Do Not Increase Liver-Like Off-Flavors In Cooked Beef, Blaine Jenschke, Jennie James, Kyle Vander Pol, Chris R. Calkins, Terry J. Klopfenstein
Nebraska Beef Cattle Reports
Crossbred steers fed with varying levels of wet distillers grains to test the incidence of liver-like off-flavors. USDA Choice steaks, when compared to USDA Select, had significantly higher trained sensory muscle fiber tenderness scores, less detectable connective tissue, higher juiciness scores, and more intense off-flavor ratings. USDA Choice steaks had a higher percentage of panelists denote liver-like and metallic off-flavors. Wet distillers grains did not significantly influence off-flavor indicating these by-products can be used to finish cattle without causing detrimental effects on the sensory profile.
Statistics Used In The Nebraska Beef Report And Their Purpose
Statistics Used In The Nebraska Beef Report And Their Purpose
Nebraska Beef Cattle Reports
The purpose of beef cattle and beef product research at UNL is to provide reference information that represents the various populations (cows, calves, heifers, feeders, carcasses, retail products, etc.) of beef production. Obviously, the researcher cannot apply treatments to every member of a population; therefore, he/she must sample the population. The use of statistics allows the researcher and readers of the Nebraska Beef Report the opportunity to evaluate separation of random (chance) occurrences and real biological effects of a treatment. Following is a brief description of the major statistics used in the beef report. For a more detailed description of …
Flavor Relationships Among Muscles Of The Beef Chuck And Round, Jessica Meisinger, Chris R. Calkins
Flavor Relationships Among Muscles Of The Beef Chuck And Round, Jessica Meisinger, Chris R. Calkins
Nebraska Beef Cattle Reports
Flavor relationships among muscles and causes of liver-like off-flavor of six muscles from each of 30 beef carcasses were evaluated by a trained sensory panel. The infraspinatus (flat iron) was lowest in sour, metallic, and oxidized flavors and highest in fatty flavor. The vastus lateralis (knuckle side) had the most intense off-flavor and was among the highest for sour and oxidized. Heme iron concentration and pH were lowly related to off-flavor. Of 18 muscles from three carcasses, 16 were high in liver-like off-flavor. These data suggest liver-like off-flavor is related to something that impacts the entire animal.
Frontmatter And Contents
Nebraska Beef Cattle Reports
ACKNOWLEDGMENTS
Appreciation is expressed to the following firms, associations, or agencies who provided grant support for research in the beef cattle program.
Abengoa Bionergy Corp., York, Nebraska
Beef Board, Centennial, Colorado
Bioniche Lifes Services, Belleville, Ontario, Canada
Cargill Corn Milling, Blair, Nebraska
Elanco Animal Health, Indianapolis, Indiana
Intervet, Millsboro, Delaware
J.C. Robinson Seed Co., Waterloo, Nebraska
Montana State University, Boseman, Montana
Nebraska Cattlemen, Inc., Lincoln, Nebraska
Nebraska Corn Board, Lincoln, Nebraska
Nutrition Physiology Corp., Amarillo, Texas
Pfizer Inc., New York, New York
Soypass Royalty Funds, University of Nebraska, Lincoln, Nebraska
Appreciation is also expressed to the following firms who provided …
Effects Of Supplementing Beef Cows With Lipid From Whole Corn Germ, Jeremy Martin, Richard J. Rasby, Dennis R. Brink, Ron Lindquist, Duane Keisler, Stephen D. Kachman, Mark Dragastin
Effects Of Supplementing Beef Cows With Lipid From Whole Corn Germ, Jeremy Martin, Richard J. Rasby, Dennis R. Brink, Ron Lindquist, Duane Keisler, Stephen D. Kachman, Mark Dragastin
Nebraska Beef Cattle Reports
A two-year study was conducted with crossbred beef cows to determine whether supplementation with fat from whole corn germ either pre- or postpartum influenced ovarian activity before the breeding season, pregnancy rates, calving interval, calf performance, or serum leptin concentration. Supplements were fed for approximately 45 days before or 45 days after calving. Cows supplemented prepartum with fat from whole corn germ had shorter calving intervals. Ovarian activity before the breeding season, pregnancy rate, calf growth, and serum leptin were not different between groups.