Accelerated Dry Aging Under Anaerobic Conditions,
2021
University of Nebraska - Lincoln
Accelerated Dry Aging Under Anaerobic Conditions, Joseph A. Sonderman, Soon K. Lau, Felipe A. Ribeiro, David M. Velasco, Nicolas A. Bland, Nicolas J. Herrera, Morgan L. Henriott, Jeyamkondan Subbiah, Chris Calkins
Nebraska Beef Cattle Reports
The purpose of dry aging is to develop novel favors and other sensory characteristics different from wet aged meat. However, leaving meat exposed to air for an extended period of time can have negative effects on meat quality. As the meat is exposed to oxygen for an extended period of time, lipids are oxidized resulting in compounds that negatively affect favor. In this study, oxygen concentration was regulated along with time, temperature, humidity, and air flow. The purpose of oxygen regulation was to determine the effect of oxidation on the quality, specifically flavor preference, of dry aged meats. Sensory analysis …
Economic Analysis Of Increased Corn Silage
Inclusion In Beef Finishing Cattle,
2021
West Texas A&M University
Economic Analysis Of Increased Corn Silage Inclusion In Beef Finishing Cattle, Hannah C. Wilson, J. C. Macdonald, Andrea K. Watson, Terry Klopfenstein, Galen E. Erickson
Nebraska Beef Cattle Reports
An economic analysis was conducted to assess the feasibility of feeding greater inclusions of corn silage in finishing diets. Cattle were fed two inclusions of corn silage (15 and 45% of diet dry matter) with or without tylosin. Cattle fed 15% corn silage with tylosin had the best feed conversion, 15 % corn silage without tylosin was intermediate, and both 45% corn silage with and without tylosin had the poorest feed conversion. Feeding corn silage at greater inclusions decreased ADG but increased final body weight when fed to an equal fatness (28 days longer). However, feeding corn silage at 45% …
Impact Of Days Fed On Holstein Bull And Steer Performance
And Cutability Of Cattle Pen- Fed Organic Diets,
2021
University of Nebraska - Lincoln
Impact Of Days Fed On Holstein Bull And Steer Performance And Cutability Of Cattle Pen- Fed Organic Diets, Elizabeth A. Schumacher, Braden C. Troyer, Bradley M. Boyd, Levi Mcphillips, J. C. Macdonald, Andrea K. Watson, Terry Klopfenstein, Galen E. Erickson
Nebraska Beef Cattle Reports
Performance, carcass characteristics, and total meat yield of Holstein bulls and steers were compared in a simulated organic production system with the goal of producing ground beef. Holstein bulls (n = 120, initial BW = 487 lb) and steers (n = 120, initial BW = 471 lb) of the same age were blocked by BW and assigned randomly to be harvested at 308, 343, 378, and 413 days on feed. After harvest, all meat o" the carcass was considered trim and was collected and weighed to calculate total trim yield. Bulls gained faster and had greater live body weight, carcass …
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 …
Winter Growth Rate And Timing Of Marketing
On Economics Of Yearling Systems,
2021
University of Nebraska, Lincoln
Winter Growth Rate And Timing Of Marketing On Economics Of Yearling Systems, Michael Merical, M. E. Drewnoski, Jay Parsons
Nebraska Beef Cattle Reports
Economic analyses were conducted examining 18 years of Nebraska monthly- average auction data to ! nd the e" ects of certain management decisions on the pro! tability of yearling production systems. A 2×2 experimental design was used to examine four possible scenarios. $ e variables were either fast winter growth (daily gain, 2.0 lb/ day) or slow winter growth (daily gain, 0.8 lb/day), and either a September or a July marketing date. In addition to pro! tability, risk management was also examined in this study. Average pro! tability of all scenarios was good, ranging from $112 to $143 per calf. …
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 …
Molecular Characterization Of The Cattle Tick Rhipicephalus (Boopphilus) Spp. From Selected Provinces Of Luzon, Philippines Based On The Cytochrome Oxidase 1 Gene,
2021
University of the Philippines Los Baños
Molecular Characterization Of The Cattle Tick Rhipicephalus (Boopphilus) Spp. From Selected Provinces Of Luzon, Philippines Based On The Cytochrome Oxidase 1 Gene, Adrian Jacob T. Barcenas
Undergraduate Theses
Rhipicephalus (Boophilus) microplus, commonly known as the tropical cattle tick, is a major blood-sucking ectoparasite of cattle that greatly affects the cattle industry. The real identity of the cattle tick in the Philippines is not yet elucidated because this species is believed to be complex. The samples used in this study were pre-collected adult, partially fed female ticks morphologically identified as R. microplus, from the cattle-producing provinces of Luzon, Philippines: Isabela, Cagayan, Rizal, Laguna, Batangas, Pangasinan, Ilocos Norte, and Quezon. The cattle ticks were characterized through amplification and sequence analysis of the cytochrome oxidase 1 (cox1). Genetic characterization of the …
Immunostimulatory Membrane Proteins Potentiate H. Pylori-Induced Carcinogenesis By Enabling Caga Translocation,
2021
University of North Carolina, Chapel Hill
Immunostimulatory Membrane Proteins Potentiate H. Pylori-Induced Carcinogenesis By Enabling Caga Translocation, Matthew G. Varga, Cecily R. Wood, Julia Butt, Mackenzie E. Ryan, Wei-Cheng You, Kaifeng Pan, Tim Waterboer, Meira Epplein, Carrie L. Shaffer
Veterinary Science Faculty Publications
Infection with Helicobacter pylori is the single greatest risk factor for developing gastric adenocarcinoma. In prospective, population-based studies, seropositivity to the uncharacterized H. pylori proteins Hp0305 and Hp1564 was significantly associated with cancer risk in East Asia. However, the mechanism underlying this observation has not been elucidated. Here, we show that Hp0305 and Hp1564 act in concert with previously ascribed H. pylori virulence mechanisms to orchestrate cellular alterations that promote gastric carcinogenesis. In samples from 546 patients exhibiting premalignant gastric lesions, seropositivity to Hp0305 and Hp1564 was significantly associated with increased gastric atrophy across all stomach conditions. In vitro, …
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, K. Kersh, Bradley Brown, G. Maylin, W. Duer, L. Dirikolu, K. Brewer, Jacob Machin, Thomas Tobin
Veterinary Science 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 …
Detection Of Rhodococcus Equi By Pcr From Foals And Determination Of Antimicrobial Susceptibility,
2021
TÜBİTAK
Detection Of Rhodococcus Equi By Pcr From Foals And Determination Of Antimicrobial Susceptibility, Şükrü Kirkan, Uğur Parin, Hafi̇ze Tuğba Yüksel Dolgun, Eli̇f Oya Oral
Turkish Journal of Veterinary & Animal Sciences
The scope of this research was determination of Rhodococcus equi isolates and antimicrobial susceptibilities in nasal swab specimen taken from animals between 0 and 6 months of age period. R. equi was identified from 10 isolates (11.1%) by automatic identification device. The verification of isolates were conducted by 16S ribosomal RNA PCR. VapA gene presence was detected in two (20%) isolates and multidrug resistance was identified against 11 antimicrobials. The antimicrobial resistance to macrolides and rifampin is arising worldwide since the excessive usage of the chemotherapeutics in various breeding farms just by evaluating monitoring outcomes. These results exhibit the presence …
Comparison Of Different Extraction Solvents Used In Gc-Ms Analysis For Detectingvolatile Odor Compounds In Heat Cow Sweat,
2021
TÜBİTAK
Comparison Of Different Extraction Solvents Used In Gc-Ms Analysis For Detectingvolatile Odor Compounds In Heat Cow Sweat, Özgül Ani̇taş, Serap Göncü
Turkish Journal of Veterinary & Animal Sciences
The accurate estrus detection is essential for successful reproduction. Many scientists reported the importance of pheromones for accurate detection of estrus. In addition, the choice of the appropriate device and the appropriate extraction solvent is important for obtaining quickly and more estrus-specific pheromones. In this study, sweat samples were collected in heat cows and volatile organic compounds (VOCs) in the gas chromatography mass spectrometry were evaluated using three different solvents (diethyl ether, dichloromethane, and hexane) for extraction. VOCs with different numbers and different ratios were identified in all three extraction solvents. As the solvent, 9 compounds were detected in diethyl …
Forage Yield And Quality Of Hungarian Vetch Mixture With Oat Varieties Under Rainfedconditions,
2021
TÜBİTAK
Forage Yield And Quality Of Hungarian Vetch Mixture With Oat Varieties Under Rainfedconditions, Hakan Kir
Turkish Journal of Veterinary & Animal Sciences
This study was conducted to determine the appropriate mixture rates of Hungarian vetch and oat varieties in Kırşehir province of Turkey for two years 2017-2019. In this study, the yield and quality characteristics of single and mixed cultivations of three oat (Avena sativa L.) varieties and Hungarian vetch (Vicia pannoica Crantz) were determined. Yield characteristics such as green forage and dry matter, crude protein and digestible dry matter yields and quality characteristics such as crude protein ratio, neutral detergent fiber, acid detergent fiber, digestible dry matter, total digestible nutrient, dry matter intake and relative feed value were examined in the …
Investigation Of The Zinc Accumulation In The Tissue And Performance In Broilers Raisedwith High Levels Of Zinc Sulfate Feed Under Heat Stress, Thawinan Waeothong, Jai Wei Lee, Liang Chou Hsia
Turkish Journal of Veterinary & Animal Sciences
The objectives of this study were to evaluate the effects of feeding zinc sulfate on the growth performance, Zn accumulation in the tissue, and the tibia quality. First day old of 100 chicks were randomly assigned to 10 experimental groups in a 5 (0 mg/kg Zn, 40 mg/kg ZnO, 40 mg/kg ZnSO$_{4}$.H$_{2}$O, 500 mg/kg ZnSO$_{}$, and 1000 mg/kg ZnSO$_{4}$) × 2 (high and low temperature) factorial arrangement under randomized complete block design (RCBD). Each experimental group was replicated with 10 birds. Birds were kept in individual cage until 42 days. The results showed that broilers receiving the zinc sulfate supplementation …
Multiplex Fluorescence Quantitative Pcr For The Detection Of Eight Bacterial Pathogens Ofporcine Respiratory Disease Complex (Prdc), Jingbo Wu, Wenjin Nan, Jiangqiang Huang, Guoliang Peng, Honghui Hu
Turkish Journal of Veterinary & Animal Sciences
As rapid and reliable tools for diagnosis of porcine respiratory disease complex (PRDC) bacterial pathogens are getting more important over time, we established a new multiplex fluorescence quantitative polymerase chain reaction (mFQ-PCR) system with a similar symptom. Our results showed that the system could accurately and simultaneously detect 8 pathogens within 1.5 h. The detection limits were 2-5 standard DNA copies. The correlation coefficient of the standard curve was more than 0.998, with a well dynamic range from 101 to 109, and the intra- and intervariation coefficients (CVs) were less than 2.06%. After setting the positive threshold of Ct value, …
Novel Heat Index Models For Subtropical Region Based On Daily Milk Production Incrossbred Holstein Cows,
2021
TÜBİTAK
Novel Heat Index Models For Subtropical Region Based On Daily Milk Production Incrossbred Holstein Cows, Neeraj Kashyap, Atish Kumar Chakravarty, Bharti Deshmukh
Turkish Journal of Veterinary & Animal Sciences
The quantification of the effect of heat stress imposed due to higher rate of heat gain on animal production is a prerequisite while estimating effects of heat stress. Temperature humidity index (THI) models developed empirically using meteorological parameters have been utilized as an indicator of heat stress. This study attempted to develop a heat index model with respect to productivity of the crossbred Holstein cows. More than 1.23 million daily milk yield records of 1860 crossbred cattle spread over a duration of 30 years were utilized. Statistically significant (p < 0.0001) partial regression coefficients were estimated as 0.0748 ± 0.0009 for dry bulb temperature (T$_{db}$) and -0.2228 ± 0.0011 for wet bulb temperature in model 1, -0.0182 ± 0.0005 T$_{db}$ and -0.1205 ± 0.0006 for vapour pressure in model 2, -0.0150 ± 0.0006 for Tdb and -0.1151 ± 0.0006 for dew point temperature in model 3 while as -0.1283 ± 0.0004 for T$_{db}$ and -0.0394 ± 0.0002 for relative humidity in model 4. The ratio of the partial regression coefficients of meteorological parameters (ß2/ß1) was -2.9791 in model 1, 6.8739 in model 2, 7.6731 in model 3 and 0.3073 in model 4. The developed THI models are based on the effect of meteorological parameters on daily productivity of the dairy animals, so the weightages to meteorological parameters were contrastingly different than the reported THI models. These models may successfully be used to evaluate the impact of heat stress on crossbred Holstein cows with respect to milk productivity and many other traits.
Residue Depletion Of Sarafloxacin In Black-Bone Silky Fowl Tissues After Oraladministration,
2021
TÜBİTAK
Residue Depletion Of Sarafloxacin In Black-Bone Silky Fowl Tissues After Oraladministration, Bao-Tao Liu, Shi-Kai Sun, Li Chen, Junjun Yu
Turkish Journal of Veterinary & Animal Sciences
In this study, the residue depletion of sarafloxacin in black-bone silky fowl (BSF) was studied after oral doses of sarafloxacin (10 mg/kg BW for 7 consecutive days). Muscle and liver tissues were collected at differentwithdrawal periods and determined by HPLC-MS/ MS method. The limit of detection for sarafloxacin was 1.0 μg/kg, and the recoveries from blank fortified samples were 93.53%~108.47% with coefficients of variation less than 9.28%. At first day after ending sarafloxacin treatment, the mean concentrations of sarafloxacin in muscle and liver were 366.88 ± 129.51 and 120.35 ± 46.86 μg/kg, respectively, higher than their maximum residue limits (10 …
Distribution And Localization Of Endocrine Cells In The Digestive System Of Chukarpartridge (Alectoris Chukar),
2021
TÜBİTAK
Distribution And Localization Of Endocrine Cells In The Digestive System Of Chukarpartridge (Alectoris Chukar), Hülya Kara, Zekeri̇ya Özüdoğru, Dervi̇ş Özdemi̇r, Hülya Balkaya
Turkish Journal of Veterinary & Animal Sciences
There are different types of endocrine cells that are located in the gastrointestinal system of birds and mammals. In birds, the digestive system anatomically completes the formation in the embryonic period, and in the period after hatching. Morphological and physiological differences with nutrition are formed and functionalized. The present study aimed to evaluate immunohistochemical distribution and localization of endocrine cells in the digestive tract of chukar partridges (Alectoris chukar) using antisera against serotonin, somatostatin, gastrin, and glucagon. In this study, after 20 chukar partridges were slaughtered, organs of the digestive system were obtained and stained for immunohistochemical analysis. In our …
Power Of Body Live Weights In Differentiation Physiological Growth Of Goat Breeds,
2021
TÜBİTAK
Power Of Body Live Weights In Differentiation Physiological Growth Of Goat Breeds, Raed Alatiyat, Amani Al-Dawood
Turkish Journal of Veterinary & Animal Sciences
We assumed that live body weight (LBW) would be useful to be utilized as informative categorical variable in differentiation goat performance towards better assignment into breeds. One-day old goat kids of both sexes were separately allocated as 3 breeds: Baladi, crossbreds and Shami. The kid LBW was recorded weekly until the 12th week of age. Weekly LBW showed a significant increase (p < 0.05) for both males and females of the 3 breeds and highly significant (p < 0.0001) between breeds. The high phenotypic correlation between most of the studied measurements encouraged us to investigate their efficiency in breed differentiation at early life age. Results showed that only LBW of the week 1, 2, 5, 9, and 11, and week 1, 2, 3, 11, and 12 were efficient in discriminating male and female kids, respectively. These results were better presented by showing significant genetic distances (p < 0.0001) between the breeds using the Unweighted Pair Group Method with Arithmetic mean (UPGMA) dendrogram. It is inferred that the phylogenetic tree lengths of the three breeds were 29.02 and 222.13 for male and female kids, respectively. Baladi and crossbred kids of both sexes grouped into one cluster closer than Shami kids. The canonical discriminant analysis was proved its successfulness for identifying breed based on LBW measurement.
