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

تعداد نتایج: 7064408  

Journal: :BMC Veterinary Research 2009
Jon I Esteban Beatriz Oporto Gorka Aduriz Ramón A Juste Ana Hurtado

BACKGROUND Listeria monocytogenes is among the most important foodborne bacterial pathogens due to the high mortality rate and severity of the infection. L. monocytogenes is a ubiquitous organism occasionally present in the intestinal tract of various animal species and faecal shedding by asymptomatically infected livestock poses a risk for contamination of farm environments and raw food at the...

Journal: :Revue scientifique et technique 2016
T N Gaire S Karki I P Dhakal D R Khanal R A Bowen

Cattle play an important role in the epidemiology of bluetongue (BT) by acting as reservoir hosts. However, the status of BT virus (BTV) in dairy cattle in Nepal is unknown. The objective of this study was to estimate the prevalence of BTV antibodies in dairy cattle in two eco-zones of Nepal, and to identify the factors associated with virus exposure. The authors conducted a cross-sectional ser...

Journal: :archives of razi institute 2016
a. haghparast g.r. hashemi tabar z. naseri

the measurement of antibody responses of animals exposed to bvdv either through a natural exposure or an immunization protocol is still a standard procedure. for bvdv, the test formats have been largely limited to elisa which is a valuable diagnostic test to measure the level of bvdv specific antibodies as well as antigen in blood samples. in the present study, 120 blood samples were collected ...

Journal: :Veterinary World 2023

Background and Aim: Recent information on the occurrence of bovine hypodermosis in Kazakhstan is limited to results a few clinical studies northern eastern regions. A first serological study aimed obtain more data its geographical distribution estimate prevalence this country. Materials Methods: Serum samples collected from 891 dairy cows 30 farms eight Kazakh provinces during winter season 201...

A. Haghparast G.R. Hashemi Tabar Z. Naseri

The measurement of antibody responses of animals exposed to BVDV either through a natural exposure or an immunization protocol is still a standard procedure. For BVDV, the test formats have been largely limited to ELISA which is a valuable diagnostic test to measure the level of BVDV specific antibodies as well as antigen in blood samples. In the present study, 120 blood samples were collected ...

2016
Yahia Ismail Khudhair Saleem Amin Hasso Nahi Y Yaseen Ahmed Majeed Al-Shammari

Bovine leukemia virus (BLV) is highly endemic in many countries, including Iraq, and it impacts the beef and dairy industries. The current study sought to determine the percentage of BLV infection and persistent lymphocytosis (PL) in cattle in central Iraq. Hematological, serological, and molecular observations in cross breeds and local breeds of Iraqi cattle naturally infected with BLV were co...

آبشناس, جلیل, افلاطونیان, محمد رضا, خلیلی, محمد, علی‌آبادی, فرزانه سالاری,

Background: Human brucellosis is a significant public health problem in many middle east countries including Iran. Brucella organisms, which are small aerobic, facultative intracellular coccobacilli, localize in the reproductive organs of host animals, causing abortions and sterility. They are shed in large numbers in the animal’s urine, milk, placental fluid, and other fluids. Dairy product fr...

2013
A. Alizadeh M. Mahmoodi A. Ghazikhani Shad S. Jalali

Dairy farms in some arid areas around the world have to use drinking water that contained elevated total dissolved solids (TDS); however, very limited data is available concerning water TDS effects on health status and blood mineral levels of cattle. The aim of this study was to compare 3 dairy cattle groups in several dairy farms with different drinking water TDS: High (HTDS; >4000 ppm), Mediu...

Journal: :Journal of applied microbiology 2007
M D Englen A E Hill D A Dargatz S R Ladely P J Fedorka-Cray

AIMS To obtain an overview of the prevalence and antimicrobial resistance of Campylobacter in faeces of US dairy cows in 2002. METHODS AND RESULTS Faeces from 1435 cows, representing 96 dairy operations in 21 US states, were collected for the culture of Campylobacter. A total of 735 Campylobacter strains were isolated (51.2% positive samples) with 94 operations positive (97.9%) for Campylobac...

G.R. Hashemi Tabar M. Azizzadeh M. Rad Z. Naseri

Infectious Bovine Rhinotracheitis is a highly contagious disease caused by the bovine herpes virus-1 (BoHV-1), resulting in significant losses to livestock around the world. BoHV-1 is a major pathogen of cattle, primarily associated with respiratory/genital tract infections and abortion. In the present study, we determined the presence of antibodies in 120 serum samples of cattle with the histo...

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