Animal Sciences Commons^™

The Utilization Of Brown Midrib Corn Silage Hybrids And Kernel Processing To Improve Corn Silage Value And The Use Of High Protein Distillers' Grains To Evaluate Starch Digestion, Lauren A. Ovinge

Department of Animal Science: Dissertations, Theses, and Student Research

Three studies evaluated the effects of corn silage hybrid, inclusion level and kernel processing in growing and finishing diets. Two more studies were conducted on high protein dried distillers' grains and its effect in finishing diets. Experiment 1 and 2 evaluated three corn silage hybrids; standard (CON; hybrid-TMF2H708), brown midrib (bm3; hybrid-F15579S2) and Unified™ brown midrib with SilaSoft™ kernel technology with a floury endosperm (bm3-soft; hybrid-F15578XT) harvested with or without kernel processing on growth and metabolism. Experiment 3 evaluated a brown midrib hybrid (bm3; hybrid-F27F627; Mycogen® Seeds) or a control (CON; hybrid-TMF2H708) in the diet …

Examining The Capacity Of Nebraska Rangelands For Cattle Production And Evaluating Drought Management Strategies, Kaitlyn L. Cumming

Department of Agricultural Economics: Dissertations, Theses, and Student Research

This thesis has two chapters focusing on the grazing capacity of Nebraska rangelands, and drought management strategies. The first chapter conducts a gap analysis comparing forage supplied by perennial grasslands to the animal unit months (AUMs) required by the cattle. The purpose of this research was to quantify potential AUM supply (i.e., carrying capacity) of grazing lands dominated by perennial grasses on a regional basis in Nebraska to the AUM demand based on cattle inventories and standard production practices in each region of Nebraska. The results suggest that Nebraska is operating at 100% of potential carrying capacity. Harvest efficiency for …

Dna Methylation And Mirna-1296 Act In Concert To Mediate Spatiotemporal Expression Of Kpna7 During Bovine Oocyte And Early Embryonic Development, Lei Wang, Jacqelyn M. Hand, Liyuan Fu, George W. Smith, Jianbo Yao

Faculty & Staff Scholarship

Abstract

Background: Epigenetic regulation of oocyte-specific maternal factors is essential for oocyte and early embryonic development. KPNA7 is an oocyte-specific maternal factor, which controls transportation of nuclear proteins important for early embryonic development. To elucidate the epigenetic mechanisms involved in the controlled expression of KPNA7, both DNA methylation associated transcriptional silencing and microRNA (miRNA)-mediated mRNA degradation of KPNA7 were examined.

Results: Comparison of DNA methylation profiles at the proximal promoter of KPNA7 gene between oocyte and 6 different somatic tissues identified 3 oocyte-specific differentially methylated CpG sites. Expression of KPNA7 mRNA was reintroduced in bovine kidney-derived CCL2 cells after treatment …

Relationships Between Animal Temperament And Systemic Immune Responses In Beef Cattle Exposed To Conditions Associated With Conventional Management, Alexander W. Altman

Theses and Dissertations--Animal and Food Sciences

Measures of temperament have been shown to influence physiological responses. Exit velocity (EV) has been identified as an objective, robust measure of temperament that can be used to predict subsequent performance of cattle. Additionally, previous studies from our lab indicate this measure of temperament may be related to production of interferon-γ (IFN-γ), a cytokine associated with cell-mediated immunity (CMI). Whereas research has investigated effects of EV upon immune responses, the overall goal of these studies was to examine this relationship under a variety of scenarios including human handling, transportation, and exposure to endophyte-infected tall fescue (E+) for determination of its …

Anabolic Hormone Exposure During Various Stages Of Growth: Effects On Post-Weaning Performance, Frame Size, And Carcass Characteristics Of Calf-Fed Steers, Wesley W. Gentry

Electronic Theses and Dissertations

The growth promoting activity of implants have been documented. However, stage of growth in which the implant is administered may alter growth performance and carcass traits. An experiment was conducted to examine the effects of administering a conventional implant (Synovex C; SYN-C), or an extended-release combination implant (Synovex One Grass; ONE-G) to suckling steer calves on weaning weight, post-weaning growth performance, and carcass characteristics. Suckling steer calves were either not implanted (NONE) or were implanted with SYN-C or ONE-G. Steer calves were predominantly 30 to 60 d of age when implants were administered. Steers were weaned 176 d post-suckling implant …

Impacts Of Small Intestinal Enzyme Activity And Varying Corn Grain Processing Types On Feeding Behavior, And Growth Performance Of Finishing Beef Steers, Wyatt Smith

Electronic Theses and Dissertations

The objective of this study was to quantify the differences in activity of jejunal maltase and isomaltase between 2 groups of steers with average dry matter intake (DMI) and differing average daily gain (ADG). Dry matter intake and ADG were measured in crossbred steers (n = 69). Jejunal mucosal samples were collected from 8 steers with the greatest (high) or least (low) ADG and average DMI (± 0.55 standard deviation). Homogenates of jejunal mucosa were incubated with increasing amounts of maltose and isomaltose to determine the disaccharidase kinetics. Neither the Km of isomaltase (P = 0.15) or maltase (P = …

Optimization Of Reproductive Success In Beef Cattle By Implementation Of Estrus Resynchronization, Nutritional Management, And Evaluation Of Disease Prevalance, Kaitlin M. Epperson

Electronic Theses and Dissertations

The beef industry is a unique community of operations that employ different management techniques to accomplish a similar goal. Like other facets of animal agriculture, profitability of the beef industry is heavily reliant upon the implemented management practices. Reproductive efficiency is an area of management that has great potential to positively influence the success of beef production. Through the use of reproductive technologies such as estrus synchronization and AI, a greater percentage of females can become bred to superior sires, breeding and calving seasons can be shortened, calf uniformity increased, and economic return maximized (Odde, 1990; Rodgers et al., 2012; …

Changes In Expression Of The Autophagy-Related Genes Microtubule-Associated Protein 1 Light Chain 3Β And Autophagy Related 7 In Skeletal Muscle Of Fattening Japanese Black Cattle: A Pilot Study, Tomonori Nakanishi, Tadaaki Tokunaga, Takafumi Ishida, Ikuo Kobayashi, Yuta Katahama, Azusa Yano, Laurie Erickson, Satoshi Kawahara

Hebrew Theological College Publications and Research

Objective

Autophagy is a bulk degradation system for intracellular proteins which contributes to skeletal muscle homeostasis, according to previous studies in humans and rodents. However, there is a lack of information on the physiological role of autophagy in the skeletal muscle of meat animals. This study was planned as a pilot study to investigate changes in expression of two major autophagy-related genes, microtubule-associated protein 1 light chain 3β (MAP1LC3B) and autophagy related 7 (ATG7) in fattening beef cattle, and to compare them with skeletal muscle growth.

Methods

Six castrated Japanese Black cattle (initial body weight: 503±20 kg) were enrolled in …

Field Testing Integrated Interventions For Schistosomiasis Elimination In The People's Republic Of China: Outcomes Of A Multifactorial Cluster-Randomized Controlled Trial, Gail M. Williams, Yue-Sheng Li, Darren J. Gray, Zheng-Yuan Zhao, Donald A. Harn, Lisa M. Shollenberger, Sheng-Ming Li, Xinglin Yu, Zeng Feng, Jia-Gang Guo, Jie Zhou, Yu-Lan Dong, Yuan Li, Biao Guo, Patrick Driguez, Marina Harvie, Hong You, Allen G. Ross, Donald P. Mcmanus

Biological Sciences Faculty Publications

Despite significant progress, China faces the challenge of re-emerging schistosomiasis transmission in currently controlled areas due, in part, to the presence of a range of animal reservoirs, notably water buffalo and cattle, which can harbor Schistosoma japonicum infections. Environmental, ecological and social-demographic changes in China, shown to affect the distribution of oncomelanid snails, can also impact future schistosomiasis transmission. In light of their importance in the S. japonicum, lifecycle, vaccination has been proposed as a means to reduce the excretion of egg from cattle and buffalo, thereby interrupting transmission from these reservoir hosts to snails. A DNA-based vaccine (SjCTPI) …

Investigation Of Bovine Conceptus Galectins And The Effect Of Bovine Conceptus Secretory Proteins On The Endometrial Epithelial Transcriptome, Heather Lynn Baldwin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pregnancy loss in cattle is greatest in the first 30 days of gestation. Near d15 of gestation, bovine conceptuses elongate and express LGALS1, an immunosuppressive glycan-binding protein believed to be essential for implantation. However, other members of the bovine galectin family, including LGALS3, LGALS4, LGALS7, LGALS8, LGALS9 and a galectin-13-like gene (LGALS13L), also may be expressed by the elongating conceptus. Therefore, galectin expression in elongating, d16 bovine conceptuses and intercaruncular endometrium as well as elongating, d14 ovine conceptuses and intercaruncular endometrium was assessed by RT-qPCR. Angus heifer and Texel ewes underwent estrous cycle synchronization and either inseminated or not bred. …

Serodiagnostic Potential Of Brucella Outer Membrane And Periplasmic Proteins, Aitbay Bulashev, Orken Akibekov, Zhanbolat Suranshiyev, Bakytkali Ingirbay, Saule Eskendirova

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to evaluate the serological diagnostic potential of the Brucella recombinant outer membrane (rOMP25, rOMP31) and periplasmic proteins (rBP26, rSOD) in a comparative way using an indirect enzyme-linked immunosorbent assay (i-ELISA). Rabbit and/or mouse antibodies to Brucella whole cell and/or soluble protein preparations recognized all recombinant proteins used, which confirms the expression of target antigens in E. coli in active form. The recombinant proteins showed different antigenicity to antibodies of cattle kept on a brucellosis-affected (endemic) farm and/or a new focus of infection. Thus, the presence of anti-Brucella antibodies was confirmed by i-ELISA/rSOD in 79% …

Molecular Detection Of Anaplasma Spp. In Blood And Milk Of Dairy Cattle In The Philippines, Angelito Pangan Dela Cruz, Remil Linggatong Galay, Kristina Andrea Claveria Sandalo, Flor Marie Immanuelle Rafallo Pilapil-Amante, Tetsuya Tanaka

Turkish Journal of Veterinary & Animal Sciences

Anaplasmosis has become a major concern in the cattle industry throughout the world due to its great economic impact. The causative agents, Anaplasmaspecies, are primarily transmitted by ticks, occurring intracellularly within blood cells, with some species being zoonotic. In this study, the presence of Anaplasma spp. was investigated in the blood and milk of dairy cattle in the Philippines. Blood and milk samples were collected from 98 dairy cattle from selected farms in five provinces in the southern part of Luzon Island in the Philippines. After DNA extraction, a conventional PCR for the control gene actin was performed, followed by …

Snake Envenomation In Two Cattle: Clinical/Laboratory Aspects And Treatment Using Equine-Derived Antivenin Of Viperidae, Nuri̇ Altuğ, Cafer Tayer İşler

Turkish Journal of Veterinary & Animal Sciences

In this case report, specific antivenin treatment for Viperidae snake envenomation in two cattle was defined for the first time. The diagnosis of snake envenomation was made according to the history and clinical findings. Clinical examination revealed systemic (tachycardia, dyspnea, cyanosis, hypersalivation, ruminal hypotony) and local (swelling of the leg and head) findings depending on the location of snake bites. Laboratory analysis determined granulocytic leukocytosis, monocytosis, decreased iron binding capacity, and increased CK and LDH enzyme activities. In the specific treatment of cases, equine-derived polyvalent antivenin containing antitoxic immunoglobulins against Viperidae species was administered. Additionally, 5% dextrose, antibiotics, dexamethasone, antihistamines, …

Morphometric Analysis Of The Skulls Of Domestic Cattle (Bos Taurus L.) And Water Buffalo (Bubalus Bubalis L.) In Turkey, Ermi̇ş Özkan, Abu Bakar Siddiq, Ki̇fayet Oya Kahveci̇oğlu, Muhsi̇n Öztürk, Vedat Onar

Turkish Journal of Veterinary & Animal Sciences

A total of 20 domestic cattle (Bos taurus L.) and 15 water buffalo (Bubalis bubalis L.) skulls were analyzed in this study. All of the specimens belonged to female individuals. Using a total of 27 craniometric measurements from each of the skulls, 9 indices were calculated. Although there were statistically significant differences between the linear measurements of the skulls of both species, while calculating the indices with their ratios, the values of the measurements of the facial area were determinative in the craniology. Among these indices, the facial index 1 value was statistically significant (P < 0.01) in the comparison of these two species. On the other hand, while considering the orbit and foramen magnum measurements, in contrast with the transversal measurement, the height was more determinant for their index and form.

Phylogenetic Relationships Of Native Turkish Cattle Breeds Using Microsatellite Markers, Yusuf Özşensoy, Ercan Kurar, Müge Doğan, Zafer Bulut, Mehmet Ni̇zamlioğlu, Ayşe Işik, Aysun Çamlidağ, Vahdetti̇n Altunok

Turkish Journal of Veterinary & Animal Sciences

A total of 20 microsatellite DNA markers were used for genetic characterization and determination of phylogenetic relationships of native cattle breeds of Turkey, including the Anatolian Grey (AG), Anatolian Black (AB), South Anatolian Red (SAR), East Anatolian Red (EAR), Southern Anatolian Yellow (SAY), and Zavot (ZAV). DNA samples were isolated from 271 blood samples using an organic method. Amplified polymerase chain reaction products were separated by capillary electrophoresis and genotypes were determined for 20 microsatellites. A total of 269 different alleles were determined. The lowest (7.80) and highest (10.80) mean allele numbers were observed for the ZAV and SAY populations, …

Optimized Oral Supplementation Of Vitamins Improves Feed Intake And Rumen Microbial Protein Synthesis In Deoni Cows, Ashwin Kandathil, Srinivas Bandla

Turkish Journal of Veterinary & Animal Sciences

The present study was conducted to optimize oral doses of fat- and water-soluble vitamins in cattle using in vitro gas production model and to ascertain their effects on dry matter intake (DMI), nutrient digestibility, and rumen microbial protein (RMBP) synthesis. Doses optimized using the in vitro model were 3.66, 6.78, 16.3, 41.1, 3.87, 0.323, 4.12, and 0.055 mg/kg DMI, respectively, for thiamine, riboflavin, niacin, pantothenic acid, pyridoxine, biotin, folic acid, and B12 and 500 IU/kg DMI for vitamin K. Thirty-two adult, nonproducing Deoni cows (375 ± 13.4 kg body weight, BW) were randomly divided into four equal groups (n = …

Electrocardiogram And Serum Cardiac Biomarkers Changes In Fmd In Cattle, Ali Abbas Nikvand, Seyedeh Missagh Jalali, Mohammad Nouri, Alireza Ghadrdan Mashhadi, Soroush Hassanpour Amirabadi

Turkish Journal of Veterinary & Animal Sciences

This study was designed to evaluate serum and electrocardiographic (ECG) changes in cattle with foot-and-mouth disease (FMD). Thirty-two cows with clinical signs of FMD and 13 healthy cows were randomly enrolled. After blood sampling, ECG was performed on 23 of the 32 ill cows. Serum circulatory troponin I (cTnI), CPK, LDH, and CK-MB activities were determined in the patient and control groups. Arrhythmias including ventricular tachycardia (VT), sinus tachycardia (ST), atrial fibrillation (AF), and premature ventricular complex (PVC) were seen in 4, 4, 2, and 1 of the patients, respectively. The patients had higher cTnI levels than the control group …

Phenotypic And Genotypic Investigation Of The Heavy Metal Resistance In Escherichia Coli Isolates Recovered From Cattle Stool Samples, Ni̇sa Si̇pahi̇, Emre Karakaya, Serkan İki̇z

Turkish Journal of Veterinary & Animal Sciences

The purpose of this study was to examine resistance against cadmium (Cd$^{+2}$), copper (Cu$^{+2}$), lead (Pb$^{+2}$), mercury (Hg$^{+2}$), and manganese (Mn$^{+2}$) in Escherichia coli isolates recovered from cattle stool using phenotypic (agar dilution) and genotypic [polymerase chain reaction (PCR)] methods. In addition, the isolates were genotyped via enterobacterial repetitive intergenic consensus polymerase chain reaction (ERIC-PCR). Escherichia coli was isolated and identified from the 100 stool samples that were examined in the study. It was determined phenotypically that all isolates were sensitive to mercury; 97% of them showed resistance to cadmium; 69% showed resistance to copper; 24% showed resistance to lead; …

Bovine Mammary Gland Biopsy Techniques, Veridiana L. Daley, Charles Dye, Sophie H. Bogers, R. Michael Akers, Francisco C. Rodriguez, John P. Cant, John Doelman, Peter Yoder, Karan Kumar, Dane Webster, Mark D. Hanigan

Animal and Food Sciences Faculty Publications

Bovine mammary gland biopsies allow researchers to collect tissue samples to study cell biology including gene expression, histological analysis, signaling pathways, and protein translation. This article describes two techniques for biopsy of the bovine mammary gland (MG). Three healthy Holstein dairy cows were the subjects. Before biopsies, cows were milked and subsequently restrained in a cattle chute. An analgesic (flunixin meglumine, 1.1 to 2.2 mg/kg of body weight) was administered via jugular intravenous [IV] injection 15-20 min prior to biopsy. For standing sedation, xylazine hydrochloride (0.01-0.05 mg/kg of body weight) was injected via the coccygeal vessels 5-10 min before the …

Cattle Industry Funding Scheme Annual Report 2017/2018, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

In June 2010 the Cattle Industry Funding Scheme (IFS) was introduced to address biosecurity threats relevant to the Western Australian (WA) cattle industry. The Scheme was established under the Biosecurity and Agriculture Management Act 2007 to enable cattle producers to identify the pest and disease priorities at a whole-of-industry level and to raise funds for activities to address these priorities.

There are currently three Industry Funding Schemes in operation. In addition to the Cattle IFS, there is a Sheep and Goat IFS and a Grains, Seeds and Hay IFS. The three IFSs operate in a similar manner.

The purpose of …

Effect Of Storage Period And Treatment On The Composition And Digestibility Of Olive Pomace In Cattle, Alexis Cecilia Ulloa

Master's Theses

Utilizing local by-products can serve to significantly reduce the current feed costs for ruminant producers. The objective of this study is (1) to evaluate the effects of chemical and bacterial inoculants in combination with ensiling, on the nutritional value and ensiling compatibility of olive pomace (OP) and (2) to identify the most biologically favorable treatment and ensiling day of OP for feeding to cattle. Freshly centrifuged OP (Olivas de Oro Olive Company, Creston, CA) was treated with one of four treatments: (1) no additives (control; CONT); (2) urea applied at 5% of DM (UREA; Agrium U.S. Inc, Loveland, CO); (3) …

Investigation Of Bacterial Taxa As Biomarkers Of Fescue Toxicosis And Heat Stress In Grazing Beef Cows, Sarah Katherine Chewning

Graduate Theses and Dissertations

Fescue toxicosis in grazing beef cattle is caused by consumption of Ergot alkaloids associated with tall fescue (toxic fescue) and is responsible for substantial economic loss to the U.S. beef industry. Cattle consuming toxic fescue suffer adverse physiological responses, such as: hyperthermia, increased respiration rate (RR), poor reproduction and growth performance. Other adverse responses to fescue toxins include the retention of a winter hair coat and vasoconstriction in the extremities, which can lead to tissue necrosis. Identifying cattle with reduced susceptibility to fescue toxins would allow for efficient use of fescue pastures; thus, the objectives of this thesis was to: …

Relationships Among Beef Cow Productivity Traits And Single Nucleotide Polymorphisms In The Bovine Heat Shock Protein 70 Gene, Ashley Finney

Animal Science Undergraduate Honors Theses

When eukaryotes are exposed to stressors such as heat, toxins, and low oxygen levels, heat shock proteins (HSPs) are synthesized to maintain normal cellular function within the body. Single nucleotide polymorphisms in the heat shock protein 70 (Hsp70) gene have been associated with calving percentage, and Julian calving date in spring-calving crossbred Brahman cows (Rosenkrans, et al., 2010). Our objective was to determine associations between previously identified polymorphisms in the promoter region and coding sequence of the bovine Hsp70 gene and beef cow efficiency. We evaluated productivity traits, including Julian calving date and calving rates, of fall-calving cows at each …

Managing Dietary Protein In Cattle As A Means Of Reducing Ammonia Emissions To Improve Air Quality, Ashley Houston

Undergraduate Honors Capstone Projects

Particulate matter pollution has become a subject of great concern across the globe. Emissions data has revealed that the agricultural sector is making large contributions to particulate matter through ammonia emissions. Beef and dairy cattle are responsible for producing nearly 50% of annual ammonia emissions in the United States. These animals are often fed amounts of dietary protein that exceed recommendations, resulting in increased excretion of urea and ammonia. These compounds combine with nitrogen oxides in the atmosphere to form PM_2.5: particulate matter measuring less than 2.5 microns in diameter. Research has shown that through proper dietary management …

Comparing Snp Panels And Statistical Methods For Estimating Genomic Breed Composition Of Individual Animals In Ten Cattle Breeds, Jun He, Yage Guo, Jiaqi Xu, Hao Li, Anna Fuller, Richard G. Tait Jr., Xiao-Lin Wu, Stewart Bauck

Department of Child, Youth, and Family Studies: Faculty Publications

Background: SNPs are informative to estimate genomic breed composition (GBC) of individual animals, but selected SNPs for this purpose were not made available in the commercial bovine SNP chips prior to the present study. The primary objective of the present study was to select five common SNP panels for estimating GBC of individual animals initially involving 10 cattle breeds (two dairy breeds and eight beef breeds). The performance of the five common SNP panels was evaluated based on admixture model and linear regression model, respectively. Finally, the downstream implication of GBC on genomic prediction accuracies was investigated and discussed in …

Climate Change, Cattle, And The Challenge Of Sustainability In A Telecoupled System In Africa, Tara S. Easter, Alexander K. Killion, Neil H. Carter

Ecology, Evolution, and Behavior

Information, energy, and materials are flowing over greater distances than in the past, changing the structure and feedbacks within and across coupled human and natural systems worldwide. The telecoupling framework was recently developed to understand the feedbacks and multidirectional flows characterizing social and environmental interactions between distant systems. We extend the application of the telecoupling framework to illustrate how flows in beef affect and are affected by social-ecological processes occurring between distant systems in Africa, and how those dynamics will likely change over the next few decades because of climate-induced shifts in a major bovine disease, trypanosomosis. The disease is …

What Is The Value Of Corn Residue To Grazing Cattle?, Emily Ann Petzel

Electronic Theses and Dissertations

The United States produces over 370,840,000,000 kg of corn grain and concomitantly more than 303,410,000,000 kg DM of non-grain corn residues (i.e., leaves, husks and stalk) from grain production annually. Although there is an abundance of available corn residue, only 12% of land planted to corn is grazed after harvest (Schmer, 2017), and based on current estimates of nutrient composition (NASEM, 2016), while 30% of available corn residues could maintain the entire United States cow herd. Grazing cattle often select diets with greater nutrient density and digestibility in comparison to the overall biomass available; however, most estimates of nutrient density …

Can Solvent-Or Mechanically-Extracted Carinata Meal Be Used As An Effective Source Of Supplemental Protein To Cows Fed Poor Quality Forages?, Emily Jacklyn Rosenthal

Electronic Theses and Dissertations

Brassica carinata is an oilseed crop that requires a relatively short growing season and produces high crop yields. It is a great source for aviation biofuel, however it produces a large amount of waste that may be used as a protein supplement for cattle. We tested the effects of solvent- or mechanically-extracted carinata meal as a protein supplement to ad libitum ground or long-stem corn residue (i.e., corn plant left over from grain harvest) had on cow performance and digestibility. Fifty-six non-pregnant cows in 8 pens had ad libitum access to either long-stem or ground corn residue in addition to …

Detection And Characterization Of Extended-Spectrum Beta-Lactamase Genes(Bla$_{Tem}$ And Bla$_{Shv}$) Among Beta-Lactam-Resistant Fecal Coliforms Of Dairy Cattle From Chhattisgarh, India, Nidhi Rawat, Fateh Singh, Sadanand Devidas Hirpurkar, Chandrahas Sannat, Nitin Eknath Gade

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to isolate the antimicrobial-resistant enterobacteria from cattle feces and to identify the extended-spectrum beta-lactamase (ESBL) and carbapenemase gene among them. A total of 70 cattle fecal swab samples were collected from Durg, Chhattisgarh, India, and cultured in nutrient broth. Bacterial isolation recovered 120 gram-negative bacteria. Antimicrobial susceptibility testing showed 90 (75%) coliform isolates (66 Escherichia coli, 20 Klebsiella sp., and two each of Enterobacter sp. and Citrobacter sp.) resistant to amoxicillin, amoxicillin-clavulanic acid, cefixime, ceftazidime, imipenem, or meropenem. Bacterial isolates showed the highest resistance rate for ceftazidime (61.6%), followed by cefixime and amoxicillin-clavulanic acid …

Morphological Diagnosis Of Johne?S Disease: A Case Report In Cattle, Siddharth Gautam, Chitra Joshi, Amol Gurav, Chandrakanta Jana, Anil Kumar Sharma

Turkish Journal of Veterinary & Animal Sciences

The present case report deals with the morphological (gross and histopathological) and histochemical characterization of Johne?s disease in a cow. The carcass was presented in a hidebound condition with sunken eyes and with a history of persistent and nonresponsive diarrhea. Necropsy revealed generalized gelatinization of the visceral and peripheral fat. Thorough gross examination unveiled major pathological changes in the digestive tract. The gallbladder was distended, with severely thickened walls and blood mixed with bile. The small intestine was severely congested and the mesenteric lymph nodes were enlarged. The opening of the small intestine showed marked thickening of the intestinal walls, …