PROPAGATION OF LOW PATHOGENICITY AVIAN INFLUENZA VIRUSES by KIRA ANN MORESCO (Under the Direction of David E. Swayne) ABSTRACT Growth parameters of low pathogenicity avian influenza viruses were examined in eight cell cultures and in three types of avian embryos. Virus detection was compared for samples collected from experimentally infected birds, using real-time reverse transcriptase polymera...

OBJECTIVE To determine the source of indigenous sporadic infection with Salmonella enteritidis phage type 4. DESIGN Case-control study of primary sporadic cases identified by the Public Health Laboratory Service between 1 August and 30 September 1988. SETTING PHLS Communicable Disease Surveillance Centre, Division of Enteric Pathogens, 11 PHLS laboratories, and 42 local authority environmen...

Raising chickens for eggs in urban areas is becoming increasingly common. Urban chickens may be exposed to lead, a common urban soil contaminant. We measured lead concentrations in chicken eggs from New York City (NYC) community gardens and collected information on factors that might affect those concentrations. Lead was detected between 10 and 167 μg/kg in 48 % of NYC eggs. Measures of lead in...

Abstract Present study was planned to determine variations in external and internal quality egg parameters of different avian species including ostrich Struthio camelus, ducks Anas platyrhynchos, chicken Gallus gallus, turkeys Meleagris gallopavo grey francolin Francolinus pondicerinus. All the birds were kept under similar rearing conditions. A total 150 eggs collected for each record features...

Background SALL gene family represent a group of evolutionary conserved zinc finger transcription factors which are involved in normal development. It includes four members (SALL1 to SALL4). SALL4 has significant roles in the maintenance of pluripotency and self-renewal, efficient proliferation /stabilization and cell fate decision of embryonic stem cells (ESCs). Our aim in this study was to a...

Methenamine salts have been traditionally used in the veterinary and human medicine, but its use is sometimes associated with some side effects.Toxicopathological effects of methenamine salt have always been a major concern. There is scantly information available about the lesions of methenamine compound in embryo. The objective of this study was to determine the teratogenic effects of methenam...