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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2010 > Volume 9 Number 3 > G. Giossa1,2, K. Suzuki1, M. Petruccelli1, G. Rodrيguez1,2, G. Trenchi1,2 and H. Trenchi2

Flock-Level Seroprevalence against Avian Pneumovirus amongst Uruguayan Broiler Chickens

G. Giossa1,2, K. Suzuki1, M. Petruccelli1, G. Rodrيguez1,2, G. Trenchi1,2 and H. Trenchi2
1Laboratorio de Diagnَstico de Enfermedades de las Aves y los Pilيferos, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Argentina 2ءrea de Patologيa y Producciَn Avيcola, Facultad de Veterinaria, Universidad de la Repْblica, Montevideo, Uruguay
Abstract :

The objective of this study was to estimate the true prevalence of seropositive broiler chickens
against avian pneumovirus at flock-level in Uruguay, using the Rogan-Gladen estimator in conjunction with
Bayesian inference. A total of 181 pooled samples (consisting of 10 individual-chicken sera each) from the
study area were examined with the enzyme-linked immunosorbent assay. All individual-chicken samples
in the pools were also examined with the same assay. Forty-four pools were classified as test positive,
because they included at least one individual-chicken classified as positive. The estimates for the
deterministic (Rogan-Gladen approach) and stochastic (Bayesian approach) true prevalence were 30.9%
[95% confidence interval (CI): 26.8-35.0%] and 31.4% (95% CI: 15.4-49.5%), respectively.

Keywords :
Bayesian model, poultry-health prevalence study, swollen head syndrome

Date Deposited : 25 Jun 2011 11:27

Last Modified : 25 Jun 2011 11:27

Official URL:

Volume 9, Number 3, - 2010 , ISSN 1682-8356

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