نتایج جستجو برای: cattle farms

تعداد نتایج: 70365  

Journal: :Applied and environmental microbiology 2016
Anna Duse Karin Persson Waller Ulf Emanuelson Helle Ericsson Unnerstad Ylva Persson Björn Bengtsson

UNLABELLED Quinolone-resistant Escherichia coli (QREC) is common in feces from young calves, but the prevalence and genetic diversity of QREC in groups of cattle of other ages and the farm environment are unknown. The aims of the study were to obtain knowledge about the occurrence of QREC on dairy farms, the genetic diversity of QREC within and between farms, and how these relate to the number ...

Journal: :Veterinary parasitology 2012
Christie E Mayo Bradley A Mullens Alec C Gerry Christopher M Barker Peter P C Mertens Sushila Maan Narender Maan Ian A Gardner Alan J Guthrie N James MacLachlan

Bluetongue (BT) is an important viral disease of ruminants that is transmitted by hematophagous Culicoides midges. We examined the seasonal patterns of abundance and infection of Culicoides sonorensis at four dairy farms in the northern Central Valley of California to develop estimates of risk for bluetongue virus (BTV) transmission to cattle at each farm. These four farms were selected because...

2010
Erik Eriksson

Verotoxinogenic E. coli O157:H7 (VTEC O157:H7) can cause severe disease in humans, with bloody diarrhea and complications such as haemolytic uraemic syndrome (HUS), thrombotic thrombocytopenic purpura (TTP) and even death. Animals carry VTEC O157:H7 asymptomatically. Ruminants, especially cattle, are considered to be the main reservoir, although the bacterium can occasionally be isolated from o...

A.K. Talukder, M. Shamsuddin

We reportedhere data from a productivity veterinary service that was participatory planned and delivered on farms at the Kanihari Union belongs to Mymensingh District of Bangladesh. We used a set of five forms and a breeding calendar on farm visit once in a month to guide service delivery and acquisition of data and to keep the records on general cattle health, reproduction, udder health and fe...

2013

Epidemiology of diseases is greatly assisted by molecular genetic analyses of pathogen strains. Such fine-scale analyses allow individual strains to be identified and tracked through outbreaks. Recently developed Whole Genome Sequencing for Mycobacterium bovis (bovine tuberculosis) has been proven a powerful tool as it can differentiate among strains causing outbreaks at the level of individual...

2011
Kun-Ho Song

The prevalence of Toxoplasma (T.) gondii was surveyed using a latex agglutination test (LAT) in native Korean cattle. A blood sample was collected from female 105 cattle in the Daejeon area of Korea. All cattle were asymptomatic and had not received any prophylactic treatment for T. gondii. Blood samples were collected via the caudal vein. The cattle ranged in age from 2~6 years (mean 3.7 years...

Journal: :Parasitology 2008
F Flütsch D Heinzmann A Mathis H Hertzberg R Stephan P Deplazes

Taenia saginata cysticercosis causes financial losses to the beef industry and farmers, and represents a significant source for human infection in many countries. A case-control study was conducted to identify risk factors for bovine cysticercosis on farms in Switzerland. The case group (n=119) consisted of farms with infected cattle identified at slaughter in 2005 and 2006. Infections were con...

2014
M. Carolyn Gates Mark E. J. Woolhouse

Farms that purchase replacement breeding cattle are at increased risk of introducing many economically important diseases. The objectives of this analysis were to determine whether the total number of replacement breeding cattle purchased by individual farms could be reduced by improving herd performance and to quantify the effects of such reductions on the industry-level transmission dynamics ...

Background: Mycobacterium bovis is the main cause of tuberculosis in cattle. At the global scale and also in Iran, the most frequent currently-in-use method in the detection of infected cattle is tuberculination. Objective: The present study was aimed to improve our genomic knowledge of Mycobacterium bovis population structure in cattle farms of Shiraz. Materials and Methods: Fifty pathologic...

2014
Liam J Herbert Leila Vali Deborah V Hoyle Giles Innocent Iain J McKendrick Michael C Pearce Dominic Mellor Thibaud Porphyre Mary Locking Lesley Allison Mary Hanson Louise Matthews George J Gunn Mark EJ Woolhouse Margo E Chase-Topping

BACKGROUND Escherichia coli (E. coli) O157 is a virulent zoonotic strain of enterohaemorrhagic E. coli. In Scotland (1998-2008) the annual reported rate of human infection is 4.4 per 100,000 population which is consistently higher than other regions of the UK and abroad. Cattle are the primary reservoir. Thus understanding infection dynamics in cattle is paramount to reducing human infections.A...

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