نتایج جستجو برای: samples from suspected livestock were analyzed by rt
تعداد نتایج: 10257914 فیلتر نتایج به سال:
The study was conducted to determine the prevalence of infectious bursal disease virus (IBDV) at different ages in commercial boilers. From Oct 2003 to Nov 2004, bursa samples collected from both vaccinated as well non-vaccinated commercially reared broiler chickens suspected of having infectious bursal disease were analyzed for the presence of IBDV using reverse transcriptase polymerase chain ...
Numerous species of mammals are susceptible to Mycobacterium bovis, the causative agent of bovine tuberculosis (TB). Several wildlife hosts have emerged as reservoirs of M. bovis infection for domestic livestock in different countries. In the present study, blood samples were collected from Eurasian badgers (n=1532), white-tailed deer (n=463), brushtail possums (n=129), and wild boar (n=177) fo...
acknowledgements i wish to express my gratitude to all those who have helped me in preparing this thesis. i would like to express my deep gratitude to my respected advisor dr. kourosh akef, whose advice and comments helped me in the early stages of the research and throughout the writing process. i would also like to express my gratitude to dr. hajar khanmohammad whose invaluable guidance he...
In recent years, the symptoms of viral diseases such as dwarfism, mosaic, discoloration, necrosis, and circular spots have been prevalent in ornamental plants in parks, gardens, and streets in North Khorasan Province. Tomato ring spot virus (ToRSV) belongs to the Nepovirus genus of Secoviridae family. This virus is a major cause of the infection of ornamental plants in the world. In this study,...
this study investigated the effects of three kinds of gloss conditions, that is traditional non-call marginal gloss, audio gloss, and extended audio gloss, on reading comprehension and vocabulary gain of iranian upper- intermediate efl learners. to this end, three experimental and one control groups, each comprising 15 participants, took part in the current study. in order to ensure that the pa...
building on previous studies on intellectual features and learners’ grammar learning, the present study aimed at investigating whether intelligence criterion had any impact on efl learners’ english grammar learning across two intelligence levels. in the current study, the participants were divided into two experimental and control groups by administration of raven i.q. test. this led to the for...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...
background:avian reoviruses (arvs) are members of theorthoreovirus genus; one of the 12 genera of the reoviridaefamily. the arvs are the cause of some important diseases inpoultry such as reovirus-induced arthritis, tenosynovitis,chronic respiratory disease, and mal-absorption syndrome.objectives: in this study, the presence of arvs in the iranianbreeder flocks was investigated through reverse ...
Background and purpose: Zoonotic intestinal parasites and intestinal nematodes of livestock are indirectly one of the human health challenges in developing countries. Considering the possible role of gastrointestinal parasites in domestic animals in the transmission of infection to humans, their economic significance in the production of protein products, and the lack of up-to-date information ...
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