Salmonellosis is one of the most important zoonotic diseases worldwide. Salmonella infections in wild birds are reported frequently. The objectives of this study were to isolate Salmonella serovars from a large collection of samples obtained from pet birds in Tehran, Iran, and then to determine the serotypes and antimicrobial susceptibility profile of the isolates. Between October 2007 and Augu...

Background: Circoviruses are small, non-enveloped, single stranded DNA viruses. There is scarce information about these agents in non-psittacine birds. Aims: It is attempted to detect and characterize circoviruses in non-psittacine birds. Methods: Forty-five samples were collected from different non-psittacine species belonging to seven avian o...

AIM The aim of this study was to evaluate the effect of feeding Acremonium charticola-fermented cassava pulp (AC-FCP) on the intestinal microbial ecology and hematological indices of broiler chickens. MATERIALS AND METHODS A total of 240 male Lohman day-old-chicks were randomly allotted to one of the four experimental diets including control diet, control diet + antimicrobials (neomycin; 300 ...

High fearfulness could disrupt learning and likely affects judgment in animals, especially when it is part of an animals' personality, i.e., trait anxiety. Here, we tested whether high fearfulness affects discrimination learning and judgment bias (JB) in laying hens. Based on the response to an open field at 5 weeks of age, birds were categorized as fearful (FC) by showing no walking or vocaliz...

A study was undertaken to identify Marek’s disease virus (MDV) antigen by PCR and AGID and to test the significance of PCR and AGID by McNemar’s test in detection of MDV antigen in outbreak in layer flocks. A total of twelve different MD outbreak flocks with varying flock size were selected in this study. Feather follicles were collected from 10 apparently healthy birds, 10 clinically affected ...

Students on a Florida campus who strayed too close to a mockingbird nest found themselves under personal attack, according to a new study. A species of songbird has been shown to identify individual people in a crowd in order to target them aggressively if they pose a threat to their nests. In the new study, by Douglas Levey and colleagues at the University of Florida, Gainsville, in the Procee...

A study has been carried out for determining of cross-immunity between Massachusetts (Mass) M41 and Iranian IR/773/2001 (793/B) strains of infectious bronchitis virus. Two groups of 20 three weeks old SPF chickens vaccinated subcutaneously with two oil-emulsions inactivated Infectious Bronchitis Vaccines (Mass M41 and Iranian IR/773/2001 strains) that had been manufactured in Razi institute in ...