نتایج جستجو برای: positive dairy cattle methods we have collected 28

تعداد نتایج: 7064408  

A. Khodakaram-Tafti, A. Mohammadi, GH. Farjani Kish

Bovine viral diarrhea virus (BVDV) is one of the most important viral pathogens of cattle worldwide. The aim of present study was to determine the molecular characterization and phylogenetic analysis of BVDV infection in dairy herds of Fars province, Iran. For initial screening, a total of 400 blood samples were collected from 12 industrial dairy herds with previous history of diarrhea, abortio...

Journal: :iranian journal of veterinary science and technology 0
masoud talebkhangaroussi ali reza khosravi saeideh pandamoz

mastitis in cattle is a serious problem which causes considerable economic losses in the dairy cattle herds. the aim of this survey was to identify mycoflorain milk of healthy, clinical and subclinical mastitis of lactating holstein dairy cows. milk samples of 154 holstein dairy cows were collected from 10 dairy cattle herds in suburb of mashhad-iran. the treatment groups included 104 lactating...

Journal: :The Journal of antimicrobial chemotherapy 2005
Ellie Hershberger Simona F Oprea Susan M Donabedian Mary Perri Pamela Bozigar Paul Bartlett Marcus J Zervos

OBJECTIVE We evaluated the epidemiology of antimicrobial resistance in enterococci from animal farms and the potential relation of resistance to antimicrobial use. METHODS Enterococci from faecal samples from 18 beef cattle, 18 dairy cattle, 18 swine, 13 chicken, and eight turkey farms were prospectively evaluated over a 6 year period from 1998 to 2003. RESULTS We evaluated 1256 isolates of...

Journal: :Veterinary research 2016
Petra Bandelj Rok Blagus France Briski Olga Frlic Aleksandra Vergles Rataj Maja Rupnik Matjaz Ocepek Modest Vengust

Farm animals have been suggested to play an important role in the epidemiology of Clostridium difficile infection (CDI) in the community. The purpose of this study was to evaluate risk factors associated with C. difficile dissemination in family dairy farms, which are the most common farming model in the European Union. Environmental samples and fecal samples from cows and calves were collected...

Charefeddine Mouffok Lounis Semara Toufik Madani

This study was an attempt to devise productive orientations of cattle herds in eastern high plains of Algeria. In this regard, 165 farms randomly identified were investigated. The selection of breeders was based to existence of cattle on the farm, and the farmer proposed to investigation must have at least two cows. The approach taken was to identify all systems adopted by farmers in a region t...

2014
Yvette M. Brockwell Timothy P. Elliott Glenn R. Anderson Rex Stanton Terry W. Spithill Nicholas C. Sangster

Triclabendazole (TCBZ) is the drug of choice for Fasciola hepatica control and reports of F. hepatica resistant to this drug from a wide range of geographic regions are very concerning. This study investigated the presence of TCBZ resistance in F. hepatica in naturally infected Australian beef and dairy cattle herds and evaluated methods of measuring the levels of resistance. Faecal egg count a...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده فنی 1393

a problem of computer vision applications is to detect regions of interest under dif- ferent imaging conditions. the state-of-the-art maximally stable extremal regions (mser) detects affine covariant regions by applying all possible thresholds on the input image, and through three main steps including: 1) making a component tree of extremal regions’ evolution (enumeration), 2) obtaining region ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

2010
A Al-Charrakh A Al-Muhana

BACKGROUND AND OBJECTIVES Dairy cattle have been implicated as principal reservoir of Verotoxin-Producing Escherichia coli (VTEC), with undercooked ground beef and raw milk being the major vehicles of food borne outbreaks. VTEC has been implicated as an etiological agent of individual cases and outbreaks in developed countries. This study was designed to determine the prevalence of VETEC in dia...

2018
Hussain Bahbahani Bashir Salim Faisal Almathen Fahad Al Enezi Joram M Mwacharo Olivier Hanotte

Butana and Kenana are two types of zebu cattle found in Sudan. They are unique amongst African indigenous zebu cattle because of their high milk production. Aiming to understand their genome structure, we genotyped 25 individuals from each breed using the Illumina BovineHD Genotyping BeadChip. Genetic structure analysis shows that both breeds have an admixed genome composed of an even proportio...

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