Serological and molecular study of Newcastle disease virus circulating in village chickens of Fars province, Iran
The epidemiology of circulating Newcastle disease virus in village chickens, using hemagglutination inhibition, RT-PCR and real-time RT-PCR was conducted by using systematic random sampling design for collection of samples. Total 1050 sera samples and 1820 tracheal and cloacal swabs were tested from chickens in 21 villages in Fars province, Iran. Samples were collected in January and February 2010. Hemagglutination...
Potentials of essential oils and plant extracts as bio-antimicrobials on Gram-negative indicator bacterial pathogens of poultry origin
Increasing antibiotic resistance of veterinary importance is of global health significance and concerns, due to antibiotic-resistant bacteria originating from animals; therefore, easily obtainable and cheap alternatives to antibiotic use in prophylaxis and also as growth promoters are imperative. Antibiotic resistance of 73 and 51 gram-negative, indicator bacterial strains isolated from 68 crop and 51 gizzard contents...