Transforming Manure And Cedar Mulch From “Waste” To “Worth”,
2021
University of Nebraska-Lincoln
Transforming Manure And Cedar Mulch From “Waste” To “Worth”, Karla Melgar, Agustin Olivo, Richard Koelsch, Larry Howard, Gary Lesoing, Aaron Nygren, Randy Saner, Amy D. Timmerman, Troy Walz, Todd Whitney, Amy Schmidt
Nebraska Beef Cattle Reports
In nearly every production environment, there are opportunities to capture profits if waste streams can be further processed or enhanced to create “value added” products. Animal feeding operations in Nebraska generate significant amounts of manure that are considered as a “waste” product. Additionally, Eastern red cedar (Juniperus virginiana) encroachment into grazing land has become an economic and ecological threat, reducing forage production, fragmenting wildlife habitats, and increasing the risk and severity of wild fires. Value- added uses for cedar woodchips are being sought by the Nebraska Forest Service and other agencies to promote tree management by landowners. Using manure and …
Using Coal Char From Sugar Production
In Cattle Manure Management,
2021
University of Nebraska - Lincoln
Using Coal Char From Sugar Production In Cattle Manure Management, Bijesh Maharjan, K. H. Jenkins Pas
Nebraska Beef Cattle Reports
Application of coal char, a coal combustion residue from the sugar factory in Scottsbluff, NE (containing up to 30 % C by weight), was evaluated as a nitrogen (N) loss mitigation tool for feedlot manure in three experiments. In experiment 1, when char was added to piled manure previously removed from feedlot pens, N loss potential was reduced (44% vs. 68% in the control). In experiment 2, manure was collected fresh from the animal, from the pen surface with cattle still in the pen, and from a pile removed from the pen. Char was mixed with these samples in replicated …
The Impact Of Oxidative Stress On Postmortem Meat Quality,
2021
University of Nebraska - Lincoln
The Impact Of Oxidative Stress On Postmortem Meat Quality, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Jessica Lynn Petersen, Chris Calkins
Nebraska Beef Cattle Reports
This study was conducted to evaluate the relationship between animal oxidative status, using lipopolysaccharide (LPS) as a promoter for oxidation. This was used as a model to evaluate tenderization and meat quality factors early postmortem. Lambs were administered an intravenous injection of either saline, 50 ng/kg bodyweight (LPS50), or 100 ng/kg bodyweight (LPS100) every 72 hours for a 9- day period to stimulate physiological oxidative stress. After a day of rest, lambs were harvested, and pre- rigor Longissimus dorsi-muscles were obtained for transcriptomic analysis. Loins, aged for 1 and 14 days, were analyzed for attributes relating to oxidative potential, meat …
The Relationship Of Liver Abscess Scores
And Early Postmortem Meat Tenderness,
2021
University of Nebraska - Lincoln
The Relationship Of Liver Abscess Scores And Early Postmortem Meat Tenderness, Nicolas J. Herrera, Felipe A. Ribeiro, Nicolas A. Bland, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
Nebraska Beef Cattle Reports
Acidosis is one of the most common nutritional disorders found in commercial feedlots. Cattle diets with high concentrations of starch can cause rapid production of acids in the rumen, disrupting microbial fermentation, causing liver abscess formation, and lowering livestock performance. This study was conducted to evaluate the relationship between the occurrence of liver abscesses and beef tenderness early postmortem. Results showed numerically lesser shear force values (greater tenderness) in loins from animals without liver abscesses, however, this was not statistically significant for slice shear force or Warner- Bratzler shear force. Although the effects of liver abscess occurrence in relation to …
Proteomic Analysis Of Oxidized Proteins In Beef,
2021
University of Nebraska - Lincoln
Proteomic Analysis Of Oxidized Proteins In Beef, Nicolas A. Bland, Nicolas J. Herrera, Felipe A. Ribeiro, Morgan L. Henriott, Kellen B. Hart, Chris Calkins
Nebraska Beef Cattle Reports
To evaluate the effects of diet and quality grade on tenderness and oxidative damage to proteins, strip loins from USDA Upper 2/3rd Choice and Select- grade carcasses were obtained. Steers were fed either a diet containing dry rolled corn, steam flaked corn, dry rolled corn with 30% dried distillers grains with solubles, or steam flaked corn with 30% dried distillers grain with solubles. Results suggest that steaks from steers fed dry rolled corn are more objectively tender than steam flaked corn; in addition, steaks grading USDA Upper 2/3rd Choice steaks were more tender when compared to USDA Select quality grade. …
Fate Of Generic Escherichia Coli In Beef Steaks During Sous Vide
Cooking At Different Holding Time And Temperature Combinations,
2021
University of Nebraska - Lincoln
Fate Of Generic Escherichia Coli In Beef Steaks During Sous Vide Cooking At Different Holding Time And Temperature Combinations, Heather B. Hunt, Samuel C. Watson, Byron D. Chaves, Gary Sullivan
Nebraska Beef Cattle Reports
Sous vide cookery utilizes water baths held at precise temperatures to cook food and has increased in popularity in domestic and food service settings due to ease of use and consistent final cooking temperature of food. Some sous vide manufacturers’ cooking websites suggest cooking intact and nonintact beef products to internal temperatures as low as 115º F. To address the safety concerns of cooking non- intact beef products to temperatures below USDA- FSIS guidance temperatures, steaks were internally inoculated with a strain of generic E. coli and sous vide cooked to internal temperatures of 115, 125, 130, and 145º F …
Effect Of Increasing Corn Silage Inclusion In Finishing Diets With
Or Without Tylosin On Performance And Liver Abscesses,
2021
University of Nebraska - Lincoln
Effect Of Increasing Corn Silage Inclusion In Finishing Diets With Or Without Tylosin On Performance And Liver Abscesses, Hannah C. Wilson, Levi Mcphillips, Bradely M. Boyd, Andrea K. Watson, J. C. Macdonald, Galen E. Erickson
Nebraska Beef Cattle Reports
A finishing study was conducted to assess the impact of increasing silage inclusion in finishing diets to reduce the prevalence of liver abscesses in beef cattle. Cattle were fed two inclusions of corn silage (15 or 45% of diet dry matter), with or without tylosin for control of liver abscesses. Cattle fed 15% corn silage had a 2% improvement in feed efficiency when tylosin was added to the diet. However, in cattle fed 45% corn silage, no improvements in feed efficiency were observed when tylosin was added to the diet. Cattle fed 15% corn silage without tylosin, had the greatest …
Evaluation Of Condensed Algal Residue
Solubles As An Ingredient In Cattle Finishing Diets,
2021
University of Nebraska - Lincoln
Evaluation Of Condensed Algal Residue Solubles As An Ingredient In Cattle Finishing Diets, John C. Gibbons, Bradley M. Boyd, Levi Mcphillips, Andrea K. Watson, Galen E. Erickson
Nebraska Beef Cattle Reports
A study was conducted to evaluate feeding 0, 2.5, or 5.0% of a novel liquid feed, Condensed Algal Residue Solubles (CARS), in one of two base diets with CARS replacing corn. ! e two base diets were fed to mimic Northern Great Plains (high moisture and dry rolled corn blend fed with wet distillers grains plus solubles) and Southern Great Plains (steam- flaked corn and dry distillers grains plus solubles) feedlot diets. ! ere were no interactions between base diet and CARS inclusion. Feed intake and longissimus muscle area decreased as CARS inclusion increased in the diet. A quadratic effect …
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- …
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 …
Development Of Elisa For Detecting Antibody Against Bartonella Spp. Specific Protein In Cats And Its Application In Natural Infection,
2021
Faculty of Veterinary Science
Development Of Elisa For Detecting Antibody Against Bartonella Spp. Specific Protein In Cats And Its Application In Natural Infection, Krissda Boonaramrueng
Chulalongkorn University Theses and Dissertations (Chula ETD)
This study aims to evaluate the risk factor and an association between Bartonella spp. infection and immune status by using retroviral-infected cats as an immunocompromised model and to develop the recombinant B. henselae specific antigen protein (17kDa and GroEL)-based ELISA test for antibody detection against Bartonella spp. infection in cats. From 2017 to 2020, 161 client-owned clinical healthy cats at veterinary clinics and hospitals in the Bangkok metropolitan area were recruited and tested for Bartonella spp. infection statuses (PCR and IFA serology), blood profiles, feline retroviral statuses (FIV and FeLV), and T lymphocyte subsets (CD4+, CD8+, and CD4+ to CD8+ …
Cortisol In Hair As A Measure Of Chronic Stress During Sow Gestation And The Pattern Of Cortisol In Blood During Parturition In Sows,
2021
South Dakota State University
Cortisol In Hair As A Measure Of Chronic Stress During Sow Gestation And The Pattern Of Cortisol In Blood During Parturition In Sows, Talia Everding
Electronic Theses and Dissertations
Cortisol is known as the stress hormone, as it influences many metabolic processes to maintain glucose homeostasis during stressful experiences, including physical and psychological stress. It can be detected in biological matrices such as blood and hair and is released rapidly during sudden stressors and continuously during longterm stress. Blood cortisol fluctuates rapidly in response to acute stressors like pain, exertion, and fear; in hair cortisol accumulates steadily over the period of hair growth and may be useful for detecting chronically elevated cortisol resulting from long-term stress. The objective of this research was to, 1) determine the influence of a …
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 …
The Effect Of The Metabolic Syndrome On The Histological Structure Of The Testes Tissue And The Sperm Morphology In The Rats,
2021
TÜBİTAK
The Effect Of The Metabolic Syndrome On The Histological Structure Of The Testes Tissue And The Sperm Morphology In The Rats, Ayşe Alkandurur, Şadi̇ye Kum
Turkish Journal of Veterinary & Animal Sciences
In this study, we aimed to investigate the effect of metabolic syndrome on spermatozoon morphology and histological, histochemical, histomorphometric changes in the testes. Twenty-four male Sprague Dawley rats (60 day-olds) were used for this purpose. The rats in the control group were fed only water and rat food, while the rats in the experimental group were fed with water containing 20% D-fructose and rats food for 16 weeks with ad libitum. At the end of the experimental period, the testes and epididymis of the rats were removed. The testes were embedded in paraffin by performing the necessary histological procedure. In …
