avibacterium paragallinarum is gram-negative bacteria that cause infectious coryza (ic), an acute respiratory disease of chickens. despite vaccination of layer and breeder farms of iran against ic, they are still experiencing the disease clinically and there is no knowledge of serotypes prevalence of this bacterium in this country. this study designed to determine serovar identity by molecular ...

Activated sludge process is the most commonly applied technology for the biological treatment of wastewater. However, operational failures and deterioration of treatment efficiency due to extensive and uncontrolled growth of filamentous bacteria have been reported worldwide as common problems of this method. Over the years, various methods have been developed and applied for the identification ...

Morphological changes in Polyvinyl Butyral (PVB) electrospun nanofibres can be acquired by preparation of PVB spinning solution in different solvents.  Accordingly, three solvents, including ethyl alcohol, n-butanol and isopropanol, with diverse physical properties (e.g. boiling point, density, dipole moment and dielectric constant) were used to prepare PolyVinyl Butyral (PVB) spin...

Background: Traditionally, morphological features of Rhipicephalus (Boophilus) annulatus from closely-related ticks have been considered for their identification and differentiation. However, it is difficult and requires expertise in order to accurately identify and differentiate engorged female ticks and some developmental stages such as larva and nymph from other similar ticks. Hence, molecul...

coral reefs which form some of the most diverse ecosystems on earth support many symbiotic relationships. symbiodinium can provide up to 90% of a coral.s energy requirements. temperature rise, turbid water and high salinity in the persian gulf were among the factors separating zooxanthellae from corals and result in bleaching phenomenon. therefore, it is crucial to identify symbiodinium of the ...

background: canine visceral leishmaniasis (cvl) is a systemic disease with a high mortality rate, caused by a diphasic protozoan parasite, leishmania infantum/chagasi in the world. the objective of the present study was to determine the presence of cvl in the city and suburbs of kerman, using a range of serological, histopathological and molecular methods. methods: blood samples were taken from...

ticks and tick-borne diseases, including theileriosis, constitute a major constraint to livestock production. two species, known as theileria lestoquardi and theileria ovis, are suspected to contribute to ovine theileriosis in iran. however, the epidemiological aspects of ovine theileriosis are poorly understood in this country. in a survey, designed to identify theileria species in sheep, 52 (...