scholarly journals Bacterial Fish Diseases in some Semi-close Aquaculture Systems in Basrah Province, Iraq

2019 ◽  
Vol 32 ◽  
pp. 75-84
Author(s):  
Abdul Amer R. Jassim ◽  
Diana B. Abdulhameed ◽  
Nadia R. Al Shammari
Keyword(s):  
Bacterial Species ◽  
Antibiotic Sensitivity ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Ulcer Disease ◽  
Aeromonas Sobria ◽  
Bacterial Gill Disease ◽  
Antibiotic Sensitivity Test ◽  
Closed Systems ◽  
Gill Disease

The object of this study was to detect the bacterial species that founded in infected common carps Cyprinus carpio in semi-closed systems in two districts of Basrah province. Bacterial gill disease, skin ulcer disease and intestine inflammatory disease were recorded. In the present study, Aeromonas sobria (38.46) was the predominant species, followed by Citrobacter freundii (29.23), Vibrio cholerae (21.53) and Serratia fonticola (10.76%). Identification of the isolates was carried out depending on the morphology of colony, specific media and identification using VITEK 2 system (Biomerieux- USA). Five antibiotic discs were used for antibiotic sensitivity test by the disk diffusion method. A. sobria was sensitive to Nitrofurantion, V.  cholerae was sensitive to Ampicillin, C. freundii was resistance for all antibiotics while S. fonticola was sensitive to Gentamicin. This study represented the first investigation in Iraq on bacterial isolates from semi- closed system.

scholarly journals CHARACTERIZATION AND ANTIBIOGRAM STUDY OF CLOSTRIDIUM CHAUVOEI ISOLATED FROM FIELD CASES OF BLACK LEG IN CATTLE

2016 ◽  
Vol 14 (1) ◽  
pp. 53-57
Author(s):  
M. S. Jowel ◽  
M. S. R. Khan ◽  
M. S. Parvej ◽  
M. Y. Ali ◽  
M. S. Ara ◽  
...  
Keyword(s):  
Antibiotic Sensitivity ◽  
Biochemical Properties ◽  
Diffusion Method ◽  
Gram Stain ◽  
Disk Diffusion Method ◽  
Veterinary Clinic ◽  
Antibiotic Sensitivity Test ◽  
Young Cattle ◽  
Clostridium Chauvoei ◽  
Cultured Bacteria

Clostridium chauvoei is the etiological agent of black quarter (BQ), an infectious disease affecting mainly young cattle and sheep. The present study was designed with a view to isolate and identifies Cl. chauvoei from field cases. A total of 4 clinically suspected samples were collected during the period from January 2013 to November 2013 from Monohardi, Narshindi (n=1); Sujanagar, Pabna (n=1) and Veterinary Clinic of Bangladesh Agricultural University, Mymensingh (n=2). The samples were processed and were cultured anaerobically on blood agar. Gram stain and hanging drop techniques were performed with the cultured bacteria. Biochemical properties of the isolates were studied, and antibiotic sensitivity test was done by disk diffusion method. In Gram stain, all isolates showed numerous short, thick, straight, round-ended, gram positive rod occurs singly or in short chains. The spores of the organism were elongated, oval, sub terminal or terminal and wider than the cell, giving a typical pear-shaped appearance. All the Cl. chauvoei isolates fermented dextrose, maltose, lactose and sucrose and produced acid and gas. In case of mannitol fermentation, only acid was produced. Catalase, oxidase, methyl red, Voges-Proskauer and indole tests were found to be negative. All isolates were resistant to oxytetracycline, amoxicillin and ciprofloxacin, whereas the isolates were sensitive to penicillin and gentamicin. In conclusion, penicillin and gentamicin can be the drugs of choice for effective treatment of BQ in cattle of Bangladesh.

scholarly journals Antibiogram of Escherichia coli isolated from semi-closed system farmed Asian clam (Corbicula fluminea)

2021 ◽  
Vol 8 (1) ◽  
pp. 24-27
Author(s):  
Wanikda Eh Chuan ◽  
Akrimah Yusof ◽  
Aweng Eh Rak ◽  
Shareef Mohd Hafiz Mani ◽  
Seong Wei Lee
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Sensitivity ◽  
Plate Count ◽  
Diffusion Method ◽  
Human Consumption ◽  
Disk Diffusion Method ◽  
E Coli ◽  
Asian Clam ◽  
Antibiotic Sensitivity Test ◽  
Clam Corbicula

In the present study, antibiogram of Escherichia coli isolated from farmed Asian clam, Corbiculafluminea was characterised. Asian clam or locally known as ‘etak’ is processed to became smokedclam and consumed as snack by Kelantanese. However, there are many diarrhoea cases afterconsuming smoked clam. Furthermore, there are also insufficient information about the E.coli levelin Asian clam farm and effective antibiotic in controlling the bacteria in the litereature. Hence, thisstudy was carried out to provide information of antibiogram of E.coli to be reference in the future.Eosin Methylene Blue agar (EMB) was used to isolate E. coli. A total of 100 isolated bacteria weresubjected to antibiotic sensitivity test using disk diffusion method. A total of 18 types of antibioticsnamely novobiocin (30µg/disk), fosfomycin (50 µg/disk), tetracycline (30µg/disk), lincomycin(15µg/disk), flumequine (30µg/disk), sulphamethoxazole (25 µg/disk), amoxycillin (25 µg/disk),chloramphenicol (30 µg/disk), oleandomycin (15 µg/disk), spiramycin (100 µg/disk), ampicillin(10 µg/disk), oxytetracycline (30 µg/disk), doxycycline (30 µg/disk), nalidixic acid (30 µg/disk),florfenicol (30 µg/disk), erythromycin (15 µg/disk), kanamycin (30 µg/disk) and oxolinic acid (2µg/disk). The findings of the present study showed total plate count of E. coli was 6.45 x 103 colonyforming unit (CFU/100g) of sampled Asian clam. Hence, the clam is needed to be under cleansingtreatment before can consider safe for human consumption. Antibiotic results showed 51 % wasrecorded as antibiotic resistance case, 44 % antibiotic sensitive case and 5 % as antibioticintermediary sensitive case. None of the tested antibiotics was successfully inhibited the growth ofthe present bacterial isolates indicating more antibiotics are needed to be screen in the future studyto find out the most effective antibiotic in controlling isolated E. coli.

scholarly journals Isolation, identification and antibiogram profiles of enterovirulent Escherichia coli from diarrhoeic goat in some selected areas of Rangpur district of Bangladesh

2018 ◽  
Vol 4 (1) ◽  
pp. 36-43 ◽  
Author(s):  
Md Rashed Kamal ◽  
Md Fakhruzzaman ◽  
Mir Rowshan Akter ◽  
Md Atiqul Haque
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Sensitivity ◽  
Biochemical Properties ◽  
Diffusion Method ◽  
Gram Stain ◽  
Disk Diffusion Method ◽  
E Coli ◽  
First Choice ◽  
Antibiotic Sensitivity Test ◽  
Metallic Sheen

Enterovirulent Escherichia coli remain as an important etiological agent of goat diarrhoea in Bangladesh. The present study was designed with a view to isolate and identifies E. coli from field cases. For this purpose, a total of 135 faecal samples (85 from diarrhoeic and 50 from apparently healthy goat) were collected during the period from January 2012 to July 2012 from different areas in Rangpur District. It was found that the prevalence of E. coli was higher (18.82 %) in diarrhoeic goats while it was lower (14.00 %) in non diarrhoeic goats. Age wise distribution of E. coli isolates were 26.42% in day old to 1 year, 10.53% in 1-2 years and 11.36% in above 2 years age of goat respectively. All the isolates of E. coli revealed greenish black colony with metallic sheen in Eosine methylene blue agar, bright pink color smooth transparent colony in MacConkey agar and slight pinkish smooth colony in Salmonella-Shigella agar. Gram stain and hanging drop techniques were performed with the cultured bacteria. Biochemical properties of the isolates were studied, and antibiotic sensitivity test was done by agar disk diffusion method. In Gram stain, the organisms revealed Gram negative, small rod shaped, occurs singly or paired. Biochemically, all of the isolates showed fermentation of dextrose, sucrose and maltose with the production of acid and gas, negative result to Voges-Proskauer test, positive result to Methylred test and differential result to Indol test. All the isolates of E. coli were highly sensitive to ciprofloxacin and gentamicin while moderately sensitive to colistin, livofloxacin and azithromycin and less sensitive to ceftraexon and tetracyclin and resistant to amoxycillin, ampicillin, erythromycin, and neomycin. Therefore, ciprofloxacin and gentamicin may be the antibiotics of first choice, and colistin, livofloxacin and azithromycin may be the second choice among the test antibiotics for the treatment of illness caused by these bacteria.Asian J. Med. Biol. Res. March 2018, 4(1): 36-43

scholarly journals Antibiotic Resistance and Plasmid Profiling of Escherichia coli Isolated from Human Sewage Samples

2021 ◽  
Vol 14 ◽  
pp. 117863612110168
Author(s):  
Sanjida Akter ◽  
A. M. Masudul Azad Chowdhury ◽  
Sohana Akter Mina
Keyword(s):  
Escherichia Coli ◽  
Developing Countries ◽  
Antibiotic Resistance ◽  
Antibiotic Sensitivity ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
E Coli ◽  
Antibiotic Sensitivity Test ◽  
Plasmid Profiling ◽  
As Relationship

In developing countries, the occurrence of antibiotic resistance is increasing day by day and antibiotic resistant microorganisms are being found in almost every environmental setting. Plasmids are considered as the main vector in the procurement and propagation of antibiotic resistance in many microorganisms such as Escherichia coli ( E. coli). The goal of this study was to examine the antibiotic resistance and screening of plasmid in E. coli strains which were previously identified from human sewage samples. During this study antibiotic susceptibility of E. coli isolates were determined by Kirby-Bauer disk diffusion method against 5 antibiotics (ampicilin, ceftriaxone, amoxicillin, ciprofloxacin, azithromycin). Furthermore, plasmid extraction of each isolate was done according to the protocol of FavorPrepTMPlasmid Mini Kit and plasmid profiling was done by agarose gel electrophoresis. In antibiotic sensitivity test, all E. coli strains showed resistance to ampicilin, amoxicillin, and ceftriaxone. In the plasmid profiling, it was revealed that all the isolates of E. coli harbored plasmids. The plasmid sizes ranged from approximately 1.5 to 15 kb. The findings of this study prove the consequences of antibiotic resistance as well as relationship of plasmid with antibiotic resistance which necessitates proper surveillance on antibiotic usage in the developing countries.

scholarly journals Screening commercial teat disinfectants against bacteria isolated from bovine milk using disk diffusion

2019 ◽  
Vol 12 (5) ◽  
pp. 629-637 ◽  
Author(s):  
Sarah Rose Fitzpatrick ◽  
Mary Garvey ◽  
Kieran Jordan ◽  
Jim Flynn ◽  
Bernadette O'Brien ◽  
...  
Keyword(s):  
Bacterial Species ◽  
Screening Method ◽  
Bovine Milk ◽  
Disk Diffusion ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Disk Diffusion Method ◽  
Associated Bacteria ◽  
Bacterial Inhibition ◽  
Milk Samples

Background and Aim: Teat disinfection is an important tool in reducing the incidence of bovine mastitis. Identifying the potential mastitis-causing bacterial species in milk can be the first step in choosing the correct teat disinfectant product. The objective of this study was to screen commercial teat disinfectants for inhibition against mastitis-associated bacteria isolated from various types of milk samples. Materials and Methods: Twelve commercially available teat disinfectant products were tested, against 12 mastitis-associated bacteria strains isolated from bulk tank milk samples and bacterial strains isolated from clinical (n=2) and subclinical (n=3) quarter foremilk samples using the disk diffusion method. Results: There was a significant variation (7-30 mm) in bacterial inhibition between teat disinfection products, with products containing a lactic acid combination (with chlorhexidine or salicylic acid) resulting in the greatest levels of bacterial inhibition against all tested bacteria (p<0.05). Conclusion: In this study, combined ingredients in teat disinfection products had greater levels of bacterial inhibition than when the ingredients were used individually. The disk diffusion assay is a suitable screening method to effectively differentiate the bacterial inhibition of different teat disinfectant products.

scholarly journals Cockroaches as a Source of High Bacterial Pathogens with Multidrug Resistant Strains in Gondar Town, Ethiopia

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Feleke Moges ◽  
Setegn Eshetie ◽  
Mengistu Endris ◽  
Kahsay Huruy ◽  
Dagnachew Muluye ◽  
...  
Keyword(s):  
Bacterial Infections ◽  
Bacterial Species ◽  
Multidrug Resistant ◽  
Resistance Rate ◽  
Control Measures ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Gondar Town ◽  
Resistant Strains ◽  
And Control

Background. Cockroaches are source of bacterial infections and this study was aimed to assess bacterial isolates and their antimicrobial profiles from cockroaches in Gondar town, Ethiopia.Methods. A total of 60 cockroaches were collected from March 1 to May 30, 2014, in Gondar town. Bacterial species were isolated from external and internal parts of cockroaches. Disk diffusion method was used to determine antibiotic susceptibility patterns. Data were entered and analyzed by using SPSS version 20;Pvalues <0.005 were considered as statistically significant.Results. Of 181 identified bacteria species, 110 (60.8%) and 71 (39.2%) were identified from external and internal parts of cockroaches, respectively.Klebsiella pneumoniae32 (17.7%),Escherichia coli29 (16%), andCitrobacterspp. 27 (15%) were the predominant isolates. High resistance rate was observed to cotrimoxazole, 60 (33.1%), and least resistance rate was noted to ciprofloxacin, 2 (1.1%). Additionally, 116 (64.1%) of the isolates were MDR strains;Salmonellaspp. were the leading MDR isolates (100%) followed byEnterobacter(90.5%) andShigellaspp. (76.9%).Conclusion. Cockroaches are the potential source of bacteria pathogens with multidrug resistant strains and hence effective preventive and control measures are required to minimize cockroach related infections.

scholarly journals Assessment of microbiological and residual antibiotics status in milk sold in Abeokuta, Ogun State. Nigeria

2018 ◽  
Vol 6 (6) ◽  
pp. 642
Author(s):  
Flora Oluwafemi ◽  
Bosede Folashade Oluwabamiwo ◽  
Oluseyi Oluwajubelo Oluwatosin ◽  
Olufunmilayo Ruth Akinrinade ◽  
Adelodun Lawrence Kolapo
Keyword(s):  
Bacterial Species ◽  
Method Comparison ◽  
Antibiotic Sensitivity ◽  
Plate Count ◽  
Diffusion Method ◽  
Rrna Gene ◽  
Antibiotic Residues ◽  
Bacterial Isolates ◽  
Powdered Milk ◽  
Microbiological Methods

This study investigated the prevalence and concentration of antibiotic residues in twenty brands of milk. Determination and quantification of antibiotic residues was done using High Performance Liquid Chromatography. Aerobic plate count was carried out and the associated bacteria isolated. Identification of bacteria was done using standard microbiological methods. Molecular characterization and identification of bacterial isolates was done using 16S rRNA gene sequencing method. Antibiotic sensitivity was carried out on bacterial isolates using disc diffusion method. Plasmid profile of drug resistant isolates was done using alkaline analysis method. Comparison of means was done using Analysis of Variance. Antibiotic residues were detected in 10 (50%) of the 20 milk brands analyzed. The residual levels of tetracycline, oxytetracycline and chlortetracycline ranged between 5ng/kg and 1569ng/kg while none of the samples had doxycycline residues. The prevalence of tetracycline residues in evaporated milk brands and powdered milk samples were 100 and 23 % respectively. The aerobic plate counts ranged from 2.5 × 102 to 6.5 × 102 CFU∕mL for evaporated milk and 2.5 × 101 to 6.0 × 101 CFU∕mL for powdered milk. A total of ten bacterial species were isolated and identified. Susceptibility result showed that 95% of the isolates were sensitive to erythromycin, cefuroxime and gentamycin; 12.5% were resistant to tetracycline and ampicillin, 10% were resistant to ofloxacin and 7.5% to doxycycline and penicillin. Five of the bacterial isolates were resistant to more than one class of antibiotics. Resistant isolates subjected to plasmid profiling had detectable plasmids with estimated sizes between 120bp and 1000bp. The obtained results provide evidence that the presence of antibiotic residues in evaporated and powdered milk is an indication that the public is exposed to the harmful effects of the residues.

scholarly journals Sensitivity of Acinetobacter baumannii and Pseudomonas aeruginosa Microorganisms to Colistin Antibiotic by MIC (E-test) in Patients Admitted to the Intensive Care Unit of Firoozgar Hospital

2020 ◽  
Author(s):  
Mahin Jamshidi Makiani ◽  
Maryam Farasatinasab ◽  
Sam Bemani ◽  
Hoda Namdari Moghadam ◽  
Fatemeh Sheibani ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Acinetobacter Baumannii ◽  
Antibiotic Sensitivity ◽  
Cross Sectional Study ◽  
Diffusion Method ◽  
Disk Diffusion Method ◽  
Cross Sectional ◽  
Hospitalization Period ◽  
The Mean ◽  
Mean Time

Background: Nosocomial infections are associated with increased morbidity, mortality, and medical burdens. Pseudomonas aeruginosa and Acinetobacter baumannii are not-fermentative gram-negative bacteria that considered as the most important nosocomial infection. In the current study, we have aimed to evaluate the sensitivity of Acinetobacter baumannii and Pseudomonas aeruginosa microorganisms to the colistin antibiotic. Methods: In this descriptive cross-sectional study, patients admitted to the ICU ward of Firoozgar Hospital from July 2018 to March 2019 were evaluated, and 169 Patients infected with Acinetobacter baumannii, and Pseudomonas aeruginosa were included. Acinetobacter baumannii and Pseudomonas aeruginosa were isolated, and antibiotic sensitivity was determined by the disk diffusion method according to Clinical & Laboratory Standards Institute (CLSI) criteria. E test was also used to determine MIC-50 and MIC-90 of colistin. Results: Acinetobacter baumannii was around 8 times more frequent than Pseudomonas aeruginosa. Colistin resistance was detected in only 4(2.4%). The mean age of patients infected by Acinetobacter baumannii was significantly higher than those infected with Pseudomonas aeruginosa. Moreover, the mean time of the hospitalization period did not show any significant differences in the different groups. Conclusion: Our findings indicated that the majority of isolated Pseudomonas aeruginosa and Acinetobacter baumannii were sensitive to Colistin. Therefore, it could be effectively used for patients with a confirmed diagnosis of Pseudomonas aeruginosa and Acinetobacter baumannii.

scholarly journals Fatal post-parturient diarrhoea in a nursing cow transported to Akinyele International Cattle Market, Ibadan, Nigeria: A case report

2020 ◽  
Vol 45 (4) ◽  
Author(s):  
I. G. Adeyemi
Keyword(s):  
Antibiotic Sensitivity ◽  
Visual Observation ◽  
Response To Therapy ◽  
Diffusion Method ◽  
Bacillus Species ◽  
Sensitivity Testing ◽  
Disk Diffusion Method ◽  
Klebsiella Species ◽  
Cattle Market

A pregnant cow of Kuri breed, estimated age of six years old with second calving was transported on land from Maiduguri, Borno state Nigeria. The journey took four days to the Akinyele International Cattle Market. The pregnant cow calved immediately on arrival at the market. A week after calving, the nursing cow was offered for sale and slaughter. The nursing cow and the calf were purchased and put under intensive medical and management care of an experienced cattle stockman in the market. The nursing cow became diarrheic on the second week of arrival at the market. Clinical examination by visual observation revealed projectile watery faeces, stained hindquarter and the pair rectal sterile swab samples were collected. Though the temperature and pulse rate were within the normal range. Standard bacteriological faecal culture of the rectal swab incubated overnight at 370C in selenith F- broth, Nutrient and blood agars at 370C for 24 hours were done, revealing heavy mixed growth of Escherichia coli, Klebsiella species and Bacillus species. Identification of colonies were based on morphology, gram staining, cultural and biochemical characteristics. In-vitro Antibiotic sensitivity testing on discrete colonies of bacteria faeces were done, using agar- Disk diffusion method. The E. coli, Klebsiella and Bacillus species were sensitive to ciprofloxacin® (10μg) and pefloxacin® (30μg). Sulfanol® (sulphadimidin) a broad spectrum antibiotic was administered immediately intramuscularly at 333mg in 3ml per 10kg for four days. Defaecation of the nursing cow stopped for two days after treatment. On the third day of the treatment, the faeces became pasty but the cow died overnight despite the good response to therapy.

scholarly journals BACTERIA IN ANIMAL FEED AND THEIR SUSCEPTIBILITY TO ANTIMICROBIAL DRUGS

2012 ◽  
Vol 5 (2) ◽  
pp. 27-33
Author(s):  
Igor M. Stojanov ◽  
Milica M. Živkov Baloš ◽  
Miloš C. Kapetanov ◽  
Jasna Z. Prodanov Radulović ◽  
Jelena M. Petrović
Keyword(s):  
Animal Feed ◽  
Bacterial Species ◽  
Antibiotic Sensitivity ◽  
Diffusion Method ◽  
Isolation And Identification ◽  
Antimicrobial Drugs ◽  
Microbiological Safety ◽  
Feed Control ◽  
Identification Of Bacteria ◽  
Feed Safety

Control of microbiological safety of animal feed is regulated by a law. The regulation is based on methodological standards for estimation of feed quality. Those methods are permanently amended and strive for continuous improvement of microbiological safety of feed. The question remains whether the presence or absence of some bacterial species is sufficient for proper assessment of feed safety. The answer to this question can be found not only in the examination of the number of bacteria in animal feed, but also in qualitative analysis of the isolated microorganisms. The sensitivity of bacteria from animal feed to antimicrobials is one of the qualitative characteristics of microorganisms that can affect food safety even if the feed meets the standards and is within the maximum permitted level. The subject of our work was to determine the presence of bacteria in animal feed with a purpose to examine if they possess lower sensibility to antibiotics. For testing antibiotic sensitivity the isolates from routine microbiological feed control were used. The animal feed was analysed by the standard methods for the isolation and identification of bacteria and determination of susceptibility was done using disc diffusion method according to CLSI. The following bacteria were detected: Escherichia coli, Enterobacter sp., Staphylococcus sp., Micrococcus sp., Bacillus cereus, Bacillus sp. The results showed that some isolates have reduced susceptibility to certain antimicrobial drugs (The resistance is different for different antibiotics and microorganism - from 8,33% to 100%). This finding gives a reason for further examination of certain characteristics of the bacteria found in animal feed and to detect their possible influence on ecology.

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