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H7n1 Low Pathogenicity Avian Influenza Viruses In Poultry In The United States During 2018, Dong-Hun Lee, Mary Lea Killian, Thomas J. Deliberto, Xiu-Feng Wan, Li Lei, David E. Swayne, Mia Kim Torchetti

United States Department of Agriculture Wildlife Services: Staff Publications

Here, we report three detections of H7N1 low pathogenicity avian influenza viruses (LPAIV) from poultry in Missouri (n¼2) and Texas (n¼1) during February and March 2018. Complete genome sequencing and comparative phylogenetic analysis suggest that the H7 LPAIV precursor viruses were circulating in wild birds in North America during the fall and winter of 2017 and spilled over into domestic poultry in Texas and Missouri independently during the spring of 2018.

RESUMEN. Nota de investigacio´n—Virus de la influenza aviar de baja patogenicidad H7N1 en avicultura, Estados Unidos, 2018. En este art´ıculo se reportan tres detecciones del virus de influenza aviar …

Surgical Sterilization Impacts On Behavior Of Coyote Pairs, Tyler Leary, Jeffrey T. Schultz, Julie K. Young

United States Department of Agriculture Wildlife Services: Staff Publications

Coyotes (Canis latrans) involved in depredation of livestock, an act frequently resulting in human-wildlife conflict, often do so out of necessity for provisioning pups. Surgical sterilization methods such as vasectomy that preserve gonadal hormones have been successful in reducing depredation by free-ranging coyotes while allowing individuals to maintain territoriality and mate fidelity. However, use of these methods remain costly and ineffective for wide-scale use. Given the alternative proposal of using chemical sterilization techniques, we investigated whether the use of hormone-altering sterilization methods impacted behavior of captive coyote pairs (i.e., male-female pair bonds). Our objective was to evaluate behavior …

Dietary Flexibility Of Wood Storks In Response To Human-Induced Rapid Environmental Change, Betsy A. Evans, Jessica A. Klassen, Dale E. Gawlik

United States Department of Agriculture Wildlife Services: Staff Publications

Human-induced rapid environmental change (HIREC) has altered landscape processes and negatively impacted many species globally. Some of the most dramatic changes have been in wetlands where flows have been disrupted, and new wetlands have been created to retain runoff. In response to disrupted natural wetland conditions, Wood Stork (Mycteria americana) populations in South Florida have significantly declined over the past several decades. Despite the well-documented sensitivity of Wood Storks to natural wetland conditions, Wood Storks are often observed foraging in roadside created wetlands; however, the availability of prey in created wetlands is currently unknown. We sampled natural and created wetlands …

Space Use In Free-Ranging Canids: Are Gonadal Hormones Required For Territory Maintenance?, Eric M. Gese, Patricia A. Terletzky

United States Department of Agriculture Wildlife Services: Staff Publications

Fertility control among carnivores has been used to reduce depredations on livestock and wild neonates, population control, modify behavior, inhibit genetic introgression, and reduce human–wildlife conflicts. Although there is considerable knowledge on techniques to sterilize carnivores, there is little information concerning how the absence of gonadal hormones influences behavior, space use, and survival of wild canids. We examined territorial fidelity, home-range size and overlap, and survival of 179 surgically sterilized free-ranging canids (124 coyotes (Canis latrans Say, 1823), 55 coyote – red wolf (Canis rufus Audubon and Bachman, 1851) hybrids) with gonadal hormones present (tubal-ligated females (n = 70), vasectomized …

Social Identity And Acceptability Of Wild Pig (Sus Scrofa) Control Actions: A Case Study Of Texas Hunters, Lauren Jaebker, Tara L. Teel, Alan D. Bright, Hailey E. Mclean, John M. Tomeček, Maureen G. Frank, Rachael L. Connally, Stephanie A. Shwiff, Keith M. Carlisle

United States Department of Agriculture Wildlife Services: Staff Publications

Wild pigs (Sus scrofa) pose significant challenges to wildlife managers. This research explored Texas hunters’ acceptability of wild pig control actions, and whether acceptability varied according to hunters’ affiliation with four different categories of natural resource organizations as an indicator of social identity. Results of a survey (n = 37,317) revealed that most hunters were accepting of all control actions except toxicants and non-lethal deterrents. Mean acceptability scores for each action differed significantly across the four affiliation categories, but effect sizes were minimal. Hunters affiliated with agricultural organizations were the most accepting of control actions, while hunters with …

Influenza A Virus Surveillance, Infection And Antibody Persistence In Snow Geese (Anser Caerulescens), Susan A. Shriner, J. Jeffrey Root, Jeremy W. Ellis, Kevin T. Bentler, Kaci K. Vandalen, Thomas Gidlewski, Sarah N. Bevins

United States Department of Agriculture Wildlife Services: Staff Publications

Some snow geese (Anser caerulescens) migrate between Eurasia and North America and exhibit high seroprevalence for influenza A viruses (IAVs). Hence, these birds might be expected to play a role in intercontinental dispersal of IAVs. Our objective in this manuscript was to characterize basic incidence and infection characteristics for snow geese to assess whether these birds are likely to significantly contribute to circulation of IAVs. Thus, we 1) estimated snow goose infection prevalence by summarizing > 5,000 snow goose surveillance records, 2) experimentally infected snow geese with a low pathogenic IAV (H4N6) to assess susceptibility and infection dynamics and …

Social Structure Defines Spatial Transmission Of African Swine Fever In Wild Boar, Kim M. Pepin, Andrew J. Golnar, Tomasz Podgórski

United States Department of Agriculture Wildlife Services: Staff Publications

The spatial spread of infectious disease is determined by spatial and social processes such as animal space use and family group structure. Yet, the impacts of social processes on spatial spread remain poorly understood and estimates of spatial transmission kernels (STKs) often exclude social structure. Understanding the impacts of social structure on STKs is important for obtaining robust inferences for policy decisions and optimizing response plans. We fit spatially explicit transmission models with different assumptions about contact structure to African swine fever virus surveillance data from eastern Poland from 2014 to 2015 and evaluated how social structure affected inference of …

Occurrence Of Mesocarnivores In Montane Sky Islands: How Spatial And Temporal Overlap Informs Rabies Management In A Regional Hotspot, Amanda M. Veals, John Koprowski, David L. Bergman, Kurt C. Vercauteren, David B. Wester

United States Department of Agriculture Wildlife Services: Staff Publications

Interspecific interactions among mesocarnivores can influence community dynamics and resource partitioning. Insights into these interactions can enhance understanding of local ecological processes that have impacts on pathogen transmission, such as the rabies lyssavirus. Host species ecology can provide an important baseline for disease management strategies especially in biologically diverse ecosystems and heterogeneous landscapes. We used a mesocarnivore guild native to the southwestern United States, a regional rabies hotspot, that are prone to rabies outbreaks as our study system. Gray foxes (Urocyon cinereoargenteus), striped skunks (Mephitis mephitis), bobcats (Lynx rufus), and coyotes (Canis latrans) share large portions of their geographic ranges …

Sars-Cov-2 Exposure In Wild White-Tailed Deer (Odocoileus Virginianus), Jeffrey C. Chandler, Sarah N. Bevins, Jeremy W. Ellis, Timothy J. Linder, Rachel M. Tell, Melinda Jenkins-Moore, J. Jeffrey Root, Julianna B. Lenoch, Suelee Robbe-Austerman, Thomas J. Deliberto, Tom Gidlewski, Mia Kim Torchetti, Susan A. Shriner

United States Department of Agriculture Wildlife Services: Staff Publications

Widespread human SARS-CoV-2 infections combined with human–wildlife interactions create the potential for reverse zoonosis from humans to wildlife. We targeted white-tailed deer (Odocoileus virginianus) for serosurveillance based on evidence these deer have angiotensin-converting enzyme 2 receptors with high affinity for SARS-CoV-2, are permissive to infection, exhibit sustained viral shedding, can transmit to conspecifics, exhibit social behavior, and can be abundant near urban centers. We evaluated 624 prepandemic and postpandemic serum samples from wild deer from four US states for SARS-CoV-2 exposure. Antibodies were detected in 152 samples (40%) from 2021 using a surrogate virus neutralization test. A subset of samples …

Detection Of Two Dissimilar Chronic Wasting Disease Isolates In Two Captive Rocky Mountain Elk (Cervus Canadensis) Herds: Two Distinctive Chronic Wasting Disease Isolates Identified In Captive Elk, Tracy A. Nichols, Eric M. Nicholson, Yihui Liu, Wanyin Tao, Terry R. Spraker, Michael Lavelle, Justin W. Fischer, Qingzhong Kong, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Chronic wasting disease (CWD) continues to spread in both wild and captive cervid herds in North America and has now been identified in wild reindeer and moose in Norway, Finland and Sweden. There is limited knowledge about the variety and characteristics of isolates or strains of CWD that exist in the landscape and their implications on wild and captive cervid herds. In this study, we evaluated brain samples from two captive elk herds that had differing prevalence, history and timelines of CWD incidence. Site 1 had a 16-year history of CWD with a consistently low prevalence between 5% and 10%. …

Environmental Dna For Conservation, Antoinette J. Piaggio

United States Department of Agriculture Wildlife Services: Staff Publications

Biodiversity must be documented before it can be conserved. However, it may be difficult to document species with few individuals (Thompson, 2013; Goldberg et al., 2016), thus it requires a multitude of tools to detect species that occur in low numbers or are elusive (see the various chapters in this volume). One tool that has become useful for conservation efforts utilizes environmental DNA, which is DNA shed into the environment by organisms (eDNA; Taberlet et al., 2018). Typically this involves taking environmental samples such as soil, water, air, or using biological surrogates for sampling biodiversity (e.g. leeches, sponges, carrion flies, …

Allometric Regression Of Snake Body Length From Head Image Measurements, Shane R. Siers

United States Department of Agriculture Wildlife Services: Staff Publications

As in many fields of wildlife research and management, camera devices and photogrammetry have become an integral part of the toolkit for exploring otherwise‐unseen aspects of the biology, behavior, and control of the invasive brown treesnake (Boiga irregularis) on Guam. Because brown treesnakes are cryptic and nocturnal, and nearly all aspects of their ecology are influenced by snake size, methods are needed to estimate snake size from images captured by infrared wildlife cameras. Unfortunately, it is difficult to capture images of an entire snake’s length at a controlled distance from a simple camera setup. Here, I describe the …

Increased Abundance Of The Common Raven Within The Ranges Of Greater And Gunnison Sage-Grouse: Influence Of Anthropogenic Subsidies And Fire, Jonathan B. Dinkins, Lindsey R. Perry, Jeffrey L. Beck, Jimmy D. Taylor

United States Department of Agriculture Wildlife Services: Staff Publications

The common raven (Corvus corax; raven) is native to North America and has increased in abundance, especially throughout western North America, during the last century. Human subsidies have facilitated raven dispersal into less suitable habitats and enabled these populations to maintain higher annual survival and reproduction. Concomitantly, overabundant raven populations are impacting other native at-risk species such as the greater sage-grouse (Centrocercus urophasianus) and potentially the Gunnison sage-grouse (C. minimus). Using Breeding Bird Survey data from 1995–2014, we evaluated raven count data to quantitatively describe changes in abundance and expansion into sagebrush ( …

A Novel Technique To Improve Capture Success Of Common Ravens, Lindsey R. Perry, Terrah M. Owens, Zachary T. Slick, Jimmy Taylor, Jonathan B. Dinkins

United States Department of Agriculture Wildlife Services: Staff Publications

Traditional trapping techniques for common ravens (Corvus corax; raven) require significant effort, often produce low capture rates, and cannot be used in some situations. We designed a 3-m noose pole to secure ravens from nocturnal roost locations while using a strobe spotlight to temporarily disorient them. We collected measures of trapping efficiency and contrasted them with padded leghold traps also used in the study. We effectively implemented our noose pole method in July and August of 2018, 2019, and 2020 in the Baker and Cow Lakes sage-grouse (Centrocercus urophasianus) Priority Areas of Conservation in eastern Oregon, USA, which yielded trapping …

Heeding The Call Of Covid-19, David Wiebers, Valery Feigin

Animal Sentience

We are grateful to all of our commentators. They have provided a wide range of valuable perspectives and insights from many fields, revealing a broad interest in the subject matter. Nearly all the commentaries have helped to affirm, refine, expand, amplify, deepen, interpret, elaborate, or apply the messages in the target article. Some have offered critiques and suggestions that help us address certain issues in greater detail, including several points concerning industrialized farming and the wildlife trade. Overall, there is great awareness and strong consensus among commentators that any solution for preventing future pandemics and other related health crises must …

The Clinicopathological Study And Associated Causes Of Pleural Effusions In Cats, Hsu Mon Hla

Chulalongkorn University Theses and Dissertations (Chula ETD)

Pleural effusion is an excessive and abnormal accumulation of fluid in the pleural space resulting from increased hydrostatic pressure, increased permeability of vascular capillary, and often leading to significant mortality. The objectives of this study were to investigate the clinicopathological parameters obtained by cytological and biochemical examination of pleural effusion and evaluate the correlations between the abnormality of these parameters and underlying causes of the pleural effusion in cats. This study was carried out in 127 cats with pleural effusion visiting the Small Animal Hospital, Faculty of Veterinary Science, Chulalongkorn University during the year 2020–2021. Pleural fluid samples were routinely …

A Serological And Molecular Survey Of Sars-Cov-2 Infection In Domestic Dogs And Cats In Bangkok And Vicinity Thailand, Kitikhun Udom

Chulalongkorn University Theses and Dissertations (Chula ETD)

The COVID-19 pandemic caused by SARS-CoV-2 has significant impact to human health worldwide. As of June 2022, over 500 million human cases with 6 million deaths have been reported. Despite SARS-CoV-2 infection in human, SARS-CoV-2 infections in domestic animals have also been reported due to spillover of the viruses from human-animals interface. The aim of this study was to conduct serological and molecular detection of SARS-CoV-2 in dogs and cats in Bangkok and vicinity in Thailand during the pandemic outbreaks. A large-scale SARS-CoV-2 survey in domestic animals which a total of 4,696 serum samples (2,960 of dogs, 1,736 of cats) …

In Vitro Inhibitory Effect Of Lactic Acid Bacteria And Their Supernatants On Flavobacterium Columnare Biofilm, Farras Daffa Imtiyaz

Chulalongkorn University Theses and Dissertations (Chula ETD)

Flavobacterium columnare is an opportunistic bacterium causing columnaris disease to more than 37 fish species. It is believed that the bacteria form biofilm on the fish skin/surfaces before the bacteria in the biofilm produce and release enzymes that degrade connective and other tissues resulting in lesions on the infected fish. Treatments to inhibit the bacterial biofilm without interfering with its planktonic cell growth can be an alternative method to control columnaris disease. This study aimed to evaluate the efficacy of lactic acid bacteria (LAB) isolated from white leg shrimp gut (Penaeus vannamei) and the root of Jerusalem artichoke (Helianthus tuberosus) …

Genetic Characterizations, Virulence, Antimicrobial Resistances And Resistome Analysis Of Vibrio Spp. Isolated From Farmed Asian Sea Bass (Lates Calcarifer) In Thailand, Hartanto Mulyo Raharjo

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study describes the etiological agent of Vibriosis along with its distribution and antimicrobial resistance profiles among farmed Asian sea bass (Lates calcarifer) in Thailand. The study isolated 283 Vibrionaceae from 15 Asian sea bass farms located around the provinces of the Andaman Sea and Gulf of Thailand coasts to uncover the distribution and antimicrobial resistance profiles. Bacterial identification based on a combination of the biochemical characteristics, Matrix-assisted laser desorption/ ionization-time of flight (MALDI-TOF) mass spectrometry (MS) analysis, and the species-specific PCR demonstrated the predominant Vibrionaceae were Vibrio harveyi (n = 56), Photobacterium damselae (n = 35), and V. vulnificus …

Identification, Characterization And Pathogenicity Of Aeromonas Schubertii Isolated From Diseased Striped Snakehead Fish (Channa Striata), Hendri Budiyansah

Chulalongkorn University Theses and Dissertations (Chula ETD)

Striped snakehead fish (Channa striata) is one of the popular cultivated fish in Thailand. However, it is inevitable to be susceptible to abundant pathogens, especially Aeromonas schubertii. In July 2020, an unknown outbreak was occurred on striped snakehead fish nursery farm in Nakhon Pathom province, Thailand. Suspected six isolates were A. schubertii yielded from the fish as the main causative agent. This research aimed to characterize and examine pathogenicity of A. schubertii isolated from diseased striped snakehead fish. Characterization was performed based on combination of biochemical assay, PCR and DNA sequencing (based on 16S rRNA and gyrB), and MALDI-TOF MS. …

Genome Analysis Of Predominant Aeromonas Species Isolated From Diseased Freshwater Fishes And Their Virulence In Striped Snakehead Fish (Channa Striata)||การวิเคราะห์จีโนมเชื้อแอโรโมนาสสปีชีส์เด่นที่แยกได้จากปลาน้ำจืดป่วยในประเทศไทยและความรุนแรงของเชื้อในปลาช่อนนา, Muhammad Fadhlullah Mursalim

Chulalongkorn University Theses and Dissertations (Chula ETD)

Aeromonas is an important bacterial pathogen in freshwater fishes. This study aimed to investigate the distribution and diversity of Aeromonas spp. including their antimicrobial resistance patterns. 86 Aeromonas isolates were collected from diseased fish in 13 fish farms around Thailand. Biochemical tests, MALDI-TOF MS, PCR assays, and the gyrB gene sequence analysis were used to identify all isolates. MALDI-TOF MS confirmed 100% (86 isolates) at the genus level and 88.4% (76 isolates) at the species level. Six Aeromonas species were confirmed based on sequences of gyrB gene, including A. veronii (72.1%), A. jandaei (11.6%), A. schubertii (9.3%), A. diversa (3.5%), …

Monitoring And Characterization Of Colistin Resistant Escherichia Coli In Pig Farm And Environment Following The Cessation In Use Of Colistin, Nwai Oo Khine

Chulalongkorn University Theses and Dissertations (Chula ETD)

The growing cases of colistin resistance due to plasmid mediated mcr genes family in Enterobacteriaceae is catastrophic to public health. In this study, our team performed the nation-wide surveillance of mcr-positive Escherichia coli (MCRPE) in healthy pigs across Thailand. Then we monitored longitudinally over the representative pig farm after colistin was withdrawn and genomic characterization was carried out. Among the 696 samples collected from 49 provinces of Thailand, the low carriage rate of mcr-1 or combination of mcr-1 and mcr-3 (4.45% and 0.43%) were detected. MCRPE isolates were multidrug-resistant (MDR) against 3–14 types of antimicrobial and enterotoxin genes were largely …

Genetic Diversity And Distribution Of Tilapia Lake Virus In Fish Polyculture System In Bangladesh, Partho Pratim Debnath

Chulalongkorn University Theses and Dissertations (Chula ETD)

Tilapia is the world's second most important farmed fish species, following carp. Bangladesh is the world's fourth-largest tilapia producer and has largely adopted fish polyculture. Few research on factors associated with mortality and economic losses following such deaths have been undertaken in Bangladesh due of its perceived hardiness. Tilapia lake virus (TiLV) is an emerging pathogen in aquaculture, reportedly affecting farmed tilapia in 16 countries across multiple continents. Following an early warning in 2017 that TiLV could be widespread, we surveyed 565 tilapia farms in 15 of Bangladesh's most important tilapia-producing districts using online tilapia epidemiology and health economics survey …

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 …

Failure Of Passive Transfer In Neonatal Calves In Dairy Farms In Ankara Region, Erdal Kara, Ebubeki̇r Ceylan

Turkish Journal of Veterinary & Animal Sciences

This study, as a model for the farms in Turkey implementing professional herd management protocols, was conducted to examine a variety of factors in relation to the prevalence of failure of passive transfer (FPT) and the passive transfer (PT) in dairy farms in Ankara. A total of 400 calves and 363 cows from 9 different farms practicing professional herd management systems and employ full-time veterinarians were included in the study. Following the birth of the calf, colostrum was taken from cows, blood samples were taken from calves at 24-48 h of age and analysed for IgG using ELISA. FPT was …

Evaluation Of Survival Rate Of Fogera Calves And Their Crossbred At Chagni Cattle Breed Improvement And Andasa Livestock Research Centres, Tazeb Gessess, Godadaw Misganaw, Yohannes Dagnew

Turkish Journal of Veterinary & Animal Sciences

The study was conducted in Chagni Cattle Bred Improvement and Andassa Livestock Research Center of Western, Amhara region to evaluate the survival rate of pure Fogera and their HolsteinFriesian crossbred calves. A retrospective type of study design was used for conducting the study. The data used in the study was taken from the records of Chagni ranch and Andassa Livestock Research Center between 2011 and 2017. The survival rates were estimated by using cox regression and Kaplan-Meier model of Stata software. The mortality rate was 3% which was nearly the optimum level that many scholars agreed for successful rearing practices. …

Seroprevalence Of Bovine Viral Diarrhoea Virus, Bovine Herpesvirus Type 1 And Bovineherpesvirus Type 4 Infections In Cattle In Ağrı Province, Eastern Anatolia Region, Turkey, Mustafa Si̇nan Aktaş, Hasan Çeli̇k

Turkish Journal of Veterinary & Animal Sciences

This research was carried out to determine the seroprevalence of Bovine Viral Diarrhoea Virus (BVDV), Bovine Herpes Virus 1 (BoHV-1), and Bovine Herpes Virus 4 (BoHV-4) in cattle (n = 188) in Ağrı province of Eastern Anatolia Region, Turkey. The presence of BVDV, BoHV-1, and BoHV-4 antibodies in sera samples were determined by an ELISA test kit. It was determined that the highest seropositivity for BoHV-1 in Tutak disrict (9.9%), in ≤ 3 years age groups (3.39%), and in Simmental cattle (14.28%); for BoHV-4 in Doğubeyazıt disrict (4.16%), %), in ≤ 3 years age groups (1.70%), and in Simmental cross …

Immunoglobulins And Acute Phase Proteins In Van Cats - Associations With Sex, Age, Andeye Colour, Pinar Coşkun, Vahdetti̇n Altunok, Fi̇li̇z Kazak, Nazmi̇ Yüksek

Turkish Journal of Veterinary & Animal Sciences

It was aimed to determine concentrations of plasma immunoglobulins (IgG, IgA, IgM) and acute phase proteins (?-1 acid glycoprotein, serum amyloid A, ceruloplasmin) and the association of these parameters with age, sex, and eye colour in Van cats. Blood plasma of healthy, forty-seven Van cats (Van Cat Home) fed with standard cat food were involved in the study. Cats were divided into four groups based on age ( 5) and eye colour (amber-amber, amber-blue, blue-amber, and blue-blue eyes described from left to right), and two groups based on sex (male and female). Plasma IgG, IgA, IgM, ?-1 acid glycoprotein, serum …

A New Molecular Approach To The Diagnosis Of Small Ruminant Morbillivirus Withevagreen Based Assay, Mustafa Emi̇n Öz, Emrah Torlak, Oğuzhan Avci, Müge Doğan, Ali̇ Tevfi̇k Uncu

Turkish Journal of Veterinary & Animal Sciences

The present work describes a new method that is anticipated to contribute to the global control and eradication strategies of small ruminant morbillivirus (SRMV), which negatively affects sheep and goat breeding in many countries where outbreaks emerge. Described assay was developed to detect SRMV by targeting the fusion glycoprotein gene. In the study, the EvaGreen based real-time RT-PCR method is compared with real-time RT-PCR based on TaqMan probe, which is recommended as the diagnostic test by World Organisation for Animal Health (OIE). Detection limit, normalized fluorescence values, and sensitivity of the methods were evaluated in the analysis. The lowest limit …

Isolation And Identification Of Clostridium Difficile From Cases Of Diarrhea In Young Farmanimals, And The Determination Of Antimicrobial Susceptibility, Edi̇z Kağan Özgen, Murat Yildirim

Turkish Journal of Veterinary & Animal Sciences

Clostridium difficile was isolated for the first time in 1935 from fecal samples of infants, although it was not until 1978 that its pathogenicity started to be considered, when it was shown to cause antibiotic-associated diarrhea and pseudomembranous colitis. In this study, it was aimed to determine the virulence and antibiotic resistance profiles of C. dificile in young ruminants with diarrhea and chickens fed on the farm. A total of 200 fecal samples (50 from calves, 50 from lambs and 50 from kid goats with neonatal diarrhea, as well as 50 cloacal swab samples taken from chickens) were taken and …