THE INFLUENCE OF SEVEN ENVIRONMENTAL AND PHYSIOLOGICAL FACTORS ON DUCK PLAGUE VIRUS SHEDDING BY CARRIER MALLARDS
- 1 April 1983
- journal article
- research article
- Published by Wildlife Disease Association in Journal of Wildlife Diseases
- Vol. 19 (2) , 77-81
- https://doi.org/10.7589/0090-3558-19.2.77
Abstract
Duck plague (DP) virus carrier mallards (A. platyrhynchos) were subjected to 7 environmental and physiological conditions in an attempt to stimulate DP virus shedding. The conditions were: food quality, social interaction, reproductive state, time dependency of food and water, noise, exercise and sex of bird. Cloacal and oral swabs were taken daily for 10 days and assayed for DP virus content. The stimulated carrier ducks shed DP virus intermittently in amounts up to 108 ffu [fluorescent focus units]/swab/day (the highest 10-fold dilution still showing specific fluorescence). Unstimulated DP carrier ducks shed only up to 108ffu/swab/day. Reproductive state and exercise were the only factors that acted in concert to stimulate the shedding of virus in oral secretions.This publication has 0 references indexed in Scilit: