Evaluation Of Wheat Blended With Corn In
Finishing Diets Containing Wet Distillers Grains,
2021
University of Nebraska - Lincoln
Evaluation Of Wheat Blended With Corn In Finishing Diets Containing Wet Distillers Grains, C A. Coulson, B M. Boyd, B B. Conroy, Galen E. Erickson
Nebraska Beef Cattle Reports
An experiment was conducted to evaluate the effect of grain type and wet distillers grains inclusion on finishing cattle performance and carcass characteristics. It was hypothesized that a greater inclusion of wet distillers grains would help mitigate acidosis previously observed with feeding wheat. Treatments were designed as a 2 × 2 factorial arrangement, with the first factor as grain type at either 100% dry rolled corn or a 50:50 blend of dry- rolled wheat and dry rolled corn, and the second factor as wet distillers grains plus solubles (WDGS) inclusion at either 12 or 30% of diet dry matter. There …
Impact Of Feeding Aspergillus Subspecies Blend
And Di! Erent Corn Processing Methods On Finishing
Beef Cattle Performance And Carcass Characteristics,
2021
University of Nebraska - Lincoln
Impact Of Feeding Aspergillus Subspecies Blend And Di! Erent Corn Processing Methods On Finishing Beef Cattle Performance And Carcass Characteristics, Stacia M. Hopfauf, Bradley M. Boyd, Levi Mcphillips, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
A feedlot study utilizing 320 crossbred calf- fed steers (initial body weight 588 lb) compared the effect of feeding an Aspergillus additive in either dry- rolled corn or high- moisture corn finishing diets on cattle performance and carcass characteristics. Steers were fed 0 g/steer daily or 10 g/steer daily Aspergillus for both corn processing methods. # ere were no significant interactions between corn processing method and Aspergillus. Feeding finishing cattle Aspergillus did not impact performance compared to feeding none. Cattle fed dry- rolled corn had greater final body weight, dry matter intake, and gain compared to high- moisture corn diets. …
Evaluation Of Processing Technique For High- Moisture
And Dry Corn Fed To Finishing Cattle,
2021
University of Nebraska - Lincoln
Evaluation Of Processing Technique For High- Moisture And Dry Corn Fed To Finishing Cattle, C A. Coulson, B M. Boyd, Braden C. Troyer, Levi Mcphillips, Mitch M. Norman, Galen E. Erickson
Nebraska Beef Cattle Reports
A 134- day finishing trial was conducted to evaluate the effect of milling method and corn type on finishing cattle performance and carcass characteristics. Treatments were applied in a 2 × 3 factorial arrangement, with the first factor as milling method (Automatic Ag roller mill or hammer mill) and the second factor as corn type, either 100% dry corn, 50:50 blend of dry and high moisture corn, or 100% high moisture corn. $ ere was no interaction between milling method and corn type for carcass- adjusted final body weight, average daily gain, or dry matter intake but there was an …
Evaluating Finishing Performance Of Cattle Fed
High- Moisture Corn And Steam- Flaked Corn Blends
With Modified Distillers Grains,
2021
University of Nebraska - Lincoln
Evaluating Finishing Performance Of Cattle Fed High- Moisture Corn And Steam- Flaked Corn Blends With Modified Distillers Grains, Braden C. Troyer, Zac C. Carlson, Levi Mcphillips, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
The objective of this study was to determine the impacts of feeding different inclusions of high- moisture corn or steam- flaked corn in diets with 20% modified distillers grains plus solubles. Additionally, this study was designed to quantify any associative effects when high- moisture and steam- flaked corn are blended together with modified distillers grains plus solubles. Cross-bred yearling steers (n=90; BW=777 ± 7.9 lb) were individually fed using a Calan Gate system for 168 days. Animals received one of five finishing diets containing 100% high moisture corn, one of three blends of high moisture steam- flaked, or 100% steam- …
Training Improves The Reliability Of
Temperament Assessment In Cattle,
2021
University of Nebraska - Lincoln
Training Improves The Reliability Of Temperament Assessment In Cattle, Jamie T. Parham, Jessica J. Schmidt, Ronald M. Lewis
Nebraska Beef Cattle Reports
Accurate and precise measurement of docility in cattle is paramount when including temperament as a criterion for selection. The value of training individuals in assigning a docility score was evaluated by comparing the reliability of individual assessments of temperament in beef cattle before and after various instructional methods. Preceding training, participants’ assessment of cattle behavior, videoed while each heifer was restrained in a chute, was not impacted by age, gender, or pre- existing cattle handling experience. Groups of participants that received additional training were more accurate and precise in evaluating temperament, regardless of training method, compared to those without. No …
Mineral Concentrations Of Forages For
Livestock In Nebraska And South Dakota,
2021
University of Nebraska, Lincoln
Mineral Concentrations Of Forages For Livestock In Nebraska And South Dakota, Rebecca J. Kern, John W. Kern, Hannah M.G. Dorn, Carrie E. Putnam, Janna J. Block, Adele A. Harty, M. E. Drewnoski
Nebraska Beef Cattle Reports
Forage samples from Nebraska and South Dakota submitted to Ward Laboratories, Inc. from 2012– 2019 were analyzed for mineral concentrations. Samples were categorized by forage species, quality based on protein content, and mineral concentration based on requirements for lactating beef cows. ! e data indicate that copper and zinc are frequently deficient across all species and levels of forage quality, emphasizing the need for supplementation. Except for magnesium, macro- mineral deficiencies are less likely to occur when feeding high quality forages in Nebraska and South Dakota. Corn feedstuffs are particularly likely to result in mineral deficiencies if fed without mineral …
Evaluation Of Models Used To Predict
Dry Matter Intake In Forage- Based Diets,
2021
University of Nebraska at Lincoln
Evaluation Of Models Used To Predict Dry Matter Intake In Forage- Based Diets, Aksel Wiseman, Andrea K. Watson, Rick Stock, Terry Klopfenstein
Nebraska Beef Cattle Reports
Accurately predicting intake is critical to model performance of cattle in order to formulate diets to meet nutritional requirements. Modeling systems must be accurate in order to provide correct information to producers. Multiple studies with growing cattle consuming forage- based diets were summarized. Actual gain and weights of the cattle were used to determine predicted dry matter intake using the Beef Cattle Nutrient Requirements Model (2016). ! e predicted dry matter intakes were compared to observed dry matter intakes to determine accuracy of the prediction model. ! e model over predicted intakes at low TDN and under predicted intakes at …
Growing Calf Intake Of Hay Or Crop Residue Based Diets,
2021
University of Nebraska at Lincoln
Growing Calf Intake Of Hay Or Crop Residue Based Diets, Aksel Wiseman, Andrea K. Watson, Rick Stock, Terry Klopfenstein
Nebraska Beef Cattle Reports
It is important to know or predict feed intake by growing calves on forage- based diets in order to balance these diets for nutrients such as energy and protein. Several growing calf studies with forage- based diets were summarized. ! ese studies evaluated the use of crop residue as a substitute for conventional forages, primarily grass hay. Calves gained about 1.8 lb/day for all forage- based diets. Calves consumed 2.6% of body weight daily when fed hay- based diets, but those fed residue with distillers grains diets consumed only 1.6% of body weight. However, when feeding the residue with distillers …
Impact Of Biochar Supplementation In
Growing Diets On Greenhouse Gas Emissions,
2021
University of Nebraska - Lincoln
Impact Of Biochar Supplementation In Growing Diets On Greenhouse Gas Emissions, Jessica L. Sperber, Braden C. Troyer, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Nebraska Beef Cattle Reports
A study was conducted to evaluate the impact of feeding biochar growing diets on cattle performance and methane and carbon dioxide emissions. Two treatments were evaluated, a forage- based control diet without biochar and a diet with biochar included at 0.8% of the diet dry matter, replacing ! ne ground corn in the supplement. Pens of cattle were rotated through a two- sided emissions barn (2 pens evaluated simultaneously) to capture CH4 and CO2 production. " ere were no statistical differences in performance or gas emissions for steers fed a biochar supplemented diet compared to control. Numerically, biochar supplemented steers …
Alternative Heifer Development Systems
Utilizing Corn Residue And Cover Crops,
2021
USDA-ARS
Alternative Heifer Development Systems Utilizing Corn Residue And Cover Crops, Hannah F. Speer, Hannah E. Riley, R. A. Cushman, Harvey C. Freetly, M. E. Drewnoski
Nebraska Beef Cattle Reports
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Evaluation Of Biochar On Nutrient Loss From Fresh Cattle Manure,
2021
University of Nebraska - Lincoln
Evaluation Of Biochar On Nutrient Loss From Fresh Cattle Manure, Jessica L. Sperber, Tyler Spore, Galen E. Erickson, Andrea K. Watson
Nebraska Beef Cattle Reports
An experiment was conducted to evaluate the impact of biochar and time on manure nutrient retention. Pans were used to simulate feedlot pens with 10 replications per treatment. Biochar was included at 0, 5, or 10% of manure dry matter with 30 and 60 day durations to evaluate pan contents over time. There was a 13- percentage unit increase in organic matter losses from day 30 to 60 for pans without biochar, and a 3- percentage unit increase for pans containing biochar. The least nitrogen loss was measured on the pans without biochar harvested at 30 days. Pans harvested at …
Impact Of Masters Choice Corn Silage
On Nutrient Digestion In Growing Cattle,
2021
University of Nebraska-Lincoln
Impact Of Masters Choice Corn Silage On Nutrient Digestion In Growing Cattle, Jiehua Xiong, Mitch M. Norman, Hannah C. Wilson, Caleb Crabtree, Galen E. Erickson
Nebraska Beef Cattle Reports
A digestion study was conducted to evaluate Masters Choice corn silage hybrids on nutrient digestibility in growing beef steers. ! e three hybrids evaluated were a conventional hybrid (CON) commonly grown in Eastern Nebraska which served as the control, Masters Choice hybrid MCT6365 RIB (MC1) that has been selected to improve " ber and starch digestion and Masters Choice hybrid MCT6733 GT3000 (MC2) selected to improve " ber digestion. Treatment diets consisted of 80% of the diet dry matter (DM) of each corn silage hybrid. Steers fed MC1 corn silage had the greatest organic matter (OM), energy digestibility, and digestible …
Pseudomonas Survive Thermal Processing And Grow During
Vacuum Packaged Storage In An Emulsified Beef System,
2021
University of Nebraska - Lincoln
Pseudomonas Survive Thermal Processing And Grow During Vacuum Packaged Storage In An Emulsified Beef System, Samuel C. Watson, Rebecca A. Furbeck, Byron D. Chaves, Gary A. Sullivan
Nebraska Beef Cattle Reports
New research has suggested the ability of Pseudomonas, a common spoilage microorganism, to grow in cooked beef products stored under vacuum which challenges the traditional understanding of the role of Pseudomonas during cooked beef spoilage. Understanding the mechanisms of survival and growth of Pseudomonas in these products is crucial for improving shelf life. The objective of this experiment was to determine Pseudomonas survival in a thermally processed, emulsified cooked beef model system. After eight weeks of refrigerated storage, Pseudomonas was recovered from cooked emulsified beef, indicating the potential for Pseudomonas to survive thermal processing and cause spoilage in cooked vacuum …
Dexamethasone Serum Concentrations After Intravenous Administration In Horses During Race Training,
2021
Midwest Equine Surgery and Sports Medicine
Dexamethasone Serum Concentrations After Intravenous Administration In Horses During Race Training, S. Mcclure, C. K. Fenger, Bradley Brown, George Maylin, W. Duer, L. Dirikolu, Kimberly Brewer, Jacob Machin, Thomas Tobin
Maxwell H. Gluck Equine Research Center Faculty Publications
Dexamethasone (DXM) sodium phosphate is a widely used corticosteroid for inflammatory conditions in horses, regulated in racing jurisdictions in the USA by a 0.005 ng/ml serum/plasma threshold. This study seeks to describe serum concentrations of DXM at 48 and 72 h after intravenous administration of 20 mg DXM sodium phosphate over 1 to 5 days, and to identify a possible source of DXM overages. 74 horses (39 Thoroughbreds, 13 Standardbreds, 22 Quarter Horses) in active race training received 20 mg DXM sodium phosphate. Serum was collected before injection, at 48 and 72 h post last injection, and analysed by LC/MS-MS …
Zilpaterol And Ractopamine: Reaching Consensus On Trace-Level Transfers To Racehorses,
2021
University of Kentucky
Zilpaterol And Ractopamine: Reaching Consensus On Trace-Level Transfers To Racehorses, Jacob Machin, Kimberly Brewer, Clara K. Fenger, Sarah White-Springer, Abelardo Morales-Briceno, Thomas Tobin
Maxwell H. Gluck Equine Research Center Faculty Publications
In this article, we review the investigation of trace amounts of b-2 adrenergic agonists, a drug class that possess significant risk to the integrity of horse racing whether intentionally used or through the inadvertent contamination of feed.
Maturation Of Equine Proximal Sesamoid Bones In Thoroughbred Horses,
2021
University of Kentucky
Maturation Of Equine Proximal Sesamoid Bones In Thoroughbred Horses, Angela Maria Mangine
Theses and Dissertations--Veterinary Science
Proximal sesamoid bone (PSB) injuries account for approximately 50% of all fatal catastrophic musculoskeletal injuries in Thoroughbred racehorses. In addition, PSB fractures are not uncommon in Thoroughbred foals and yearlings as a result of energetic or intense free exercise. The ability to interpret some PSB pathology assessments, however, is more difficult given the limited information published on the normal development and maturation of these paired sesamoid bones. In addition, the level of normal variation in PSB morphological and structural parameters within the Thoroughbred population as a function of age, body size, gender, and inter-animal variation are not well documented, complicating …
Structural Adaptation Of Equine Proximal Sesamoid Bones To High-Speed Exercise,
2021
University of Kentucky
Structural Adaptation Of Equine Proximal Sesamoid Bones To High-Speed Exercise, Kathryn Mary Babiarz
Theses and Dissertations--Veterinary Science
Proximal sesamoid bone (PSB) fractures are one of the most commonly reported catastrophic musculoskeletal injuries (CMI) in Thoroughbred racing. Despite the seriousness of these injuries, an understanding of the structural changes that occur normally within PSBs in response to the biomechanical forces of high-speed exercise and how they relate to pathological events leading to fracture remain limited. To address this critical knowledge gap, PSBs from Thoroughbred horses were analyzed with both computed tomography (CT) and microcomputed tomography (µCT) to assess their morphological and structural parameters. Comparisons were made using samples from the left and right forelimbs of Thoroughbreds of both …
An Assessment Of The Carrier State And A Novel Marker Of Leptospira And Abortion In Central Kentucky Horses,
2021
University of Kentucky
An Assessment Of The Carrier State And A Novel Marker Of Leptospira And Abortion In Central Kentucky Horses, Gloria Louise Gellin
Theses and Dissertations--Veterinary Science
Leptospirosis is a reemerging zoonotic infection of worldwide importance and affects all mammals. The bacterium is transmitted to animals and humans by urine, fetal membranes and body fluids. Leptospira shedding in the urine contaminates both soil and water, exposing both humans and animals to the bacterium. Leptospirosis in horses can cause abortion and is one of the etiologies of equine recurrent uveitis which can lead to blindness. Equine leptospiral abortion in Central Kentucky is primarily caused by serovar Pomona, with occasional cases attributed to serovar Grippotyphosa. There are a few reports in the literature attributing abortion to serovar Bratislava in …
Muscle Mass And Immune Function In The Senior Horse,
2021
University of Kentucky
Muscle Mass And Immune Function In The Senior Horse, Alisa Christina Herbst
Theses and Dissertations--Veterinary Science
Senior horses (≥ 15 years) represent up to one-third of the global equine population, and the proportion of old horses (≥ 20 years) in the U.S. has been steadily increasing. Aging is associated with a loss of skeletal muscle mass in horses, and while age-related muscle loss is comparingly well characterized in humans, little is currently known concerning underlying mechanisms, adverse outcomes, or the prevalence of low muscle mass in senior horses. One factor proposed to play a role in the development of age-related muscle atrophy in humans is inflamm-aging, a low-grade inflammation that affects elderly people and that has …
Predicting Tomorrow: Optimizing The Early Detection Of Disease And Disease Recovery In Dairy Calves Using Precision Technologies,
2021
University of Kentucky
Predicting Tomorrow: Optimizing The Early Detection Of Disease And Disease Recovery In Dairy Calves Using Precision Technologies, Melissa Cantor
Theses and Dissertations--Animal and Food Sciences
The leading causes of morbidity and mortality in preweaned dairy calves are diarrhea and bovine respiratory disease complex (BRD). The delayed detection of these diseases in calves can also delay intervention and disease recovery. The overarching objective of this dissertation was to follow a cohort of calves daily for the first 90 days of life for naturally occurring clinical BRD bouts and diarrheal bouts. The objective answered if feeding behaviors and activity levels were different in at-risk calves during BRD development and BRD recovery from an antimicrobial intervention. Furthermore, the potential of colostrum replacer as a feeding intervention strategy to …
