نتایج جستجو برای: bovine respiratory disease
تعداد نتایج: 1700547 فیلتر نتایج به سال:
background: respiratory virus infections in children are a leading cause of morbidity and mortality worldwide. methods : a total of 897 clinical specimens were collected from february 2007 to january 2008 and transported to the national influenza center. two hundred and two samples belonged to children under the age of six from 897 specimens, described above, were selected. then they were tes...
The purpose of this study was to compare the efficacy and cost-effectiveness of florfenicol versus tulathromycin for initial treatment of undifferentiated fever in fall-placed steer calves that received metaphylactic tilmicosin on arrival at the feedlot. No significant differences (P > .10) were observed in undifferentiated fever relapses or the crude case fatality rate. Calves treated with flo...
Bovine respiratory disease (BRD) is the leading cause of morbidity and mortality in feedlot cattle. herpesvirus-1 (BHV-1) one main culprits BRD; however, research on BHV-1 hampered by lack suitable models for infection drug testing. In this study, we established a novel bovine tracheal organoid culture grown basement membrane extract type 2 (BME2) matrix compared it with air–liquid interface (A...
In this study, we performed a bacteriological investigation on bovine respiratory infections. Additionally, the study evaluates the efficacy of florfenicol 30 µg produced by Rooyan Darou Company (test group) as compared to a similar drug produced by Aboraihan Company (control group). Sampling was carried out on 30 calves at two farms with 30-55% incidence rate of respiratory disorders. Nasophar...
Most studies of infectious diseases in East African cattle have concentrated on gastro-intestinal parasites and vector-borne diseases. As a result, relatively little is known about viral diseases, except for those that are clinically symptomatic or which affect international trade such as foot and mouth disease, bluetongue and epizootic haemorrhagic disease. Here, we investigate the seroprevale...
Bovine herpes viruses belong to the family Herpesviridae. Bovine herpes virus 1 (BHV-1) is of world wide distribution and causes a wide range of diseases in cattle namely respiratory disease, keratoconjunctivitis and reproductive diseases including infectious pustular vulvovaginitis (IPV) in cows, infectious pustular balonoposthitis (IPB) in bulls and abortions. DNA studies of BHV-1 have reveal...
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