Why the study?
Does inoculation with turkey enteric picornavirus reduce weight gain in commercial poults?
Does inoculation with turkey enteric picornavirus reduce weight gain in commercial poults?
Turkey enteric picornavirus is associated with significant reduction in weight gain in commercial poults, suggesting it may cause performance problems or enteric disease in the field.
Answers are grounded in this paper and cite their sources.
May impair poult growth; hypothesis-generating for field enteric disease or performance losses.
Previous research into the viral community in the poultry gastrointestinal tract has revealed a number of novel and partially described enteric viruses. It is evident that the poultry gut viral community remains minimally characterized and incompletely understood. Investigations into the microbiome of the poultry gut have provided some insight into the geographical distribution and the rapidly evolving taxonomy of the avian enteric picornaviruses. The present investigation was undertaken to produce a comparative metagenomic analysis of the gut virome from a healthy turkey flock versus a flock placed in the field. This investigation revealed a number of enteric picornavirus sequences that were present in the commercial birds in the field that were completely absent in the healthy flock. A novel molecular diagnostic assay was used to track the shedding of field strains of turkey enteric picornavirus in commercial poults inoculated with picornavirus-positive intestinal homogenates prepared from turkeys that were experiencing moderate enteric disease. The propagation of this novel enteric picornavirus in commercial poults resulted in significant reduction in weight gain, and suggests that this common inhabitant of the turkey gut may result in performance problems or enteric disease in the field.Investigaciones sobre picornavirus entéricos de los pavos y su asociación con enfermedad entérica en pavipollos.Las investigaciones anteriores acerca de la comunidad viral en el tracto gastrointestinal de las aves comerciales han revelado una serie de virus entéricos nuevos y parcialmente descritos. Es evidente que la comunidad viral en el intestino de las aves comerciales permanece mínimamente caracterizada y no se comprende completamente. Las investigaciones sobre el microbioma del intestino de las aves comerciales han proporcionado alguna información sobre la distribución geográfica y la taxonomía que está evolucionando rápidamente de los picornavirus entéricos aviares. Se llevó a cabo la presente investigación para producir un análisis comparativo de la metagenómica del viroma intestinal de una parvada sana contra una parvada colocada en el campo. Esta investigación reveló una serie de secuencias de picornavirus entéricos que estaban presentes en las aves comerciales en el campo y que estaban completamente ausentes en la parvada sana. Un nuevo ensayo de diagnóstico molecular se utiliza para seguir la diseminación de cepas de campo de picornavirus entéricos en pavipollos comerciales inoculados con homogeneizados intestinales positivos a la presencia de picornavirus preparados a partir de pavos que estaban experimentando enfermedades entéricas moderadas. La propagación de estos nuevos picornavirus entéricos en pavipollos comerciales resultó en una reducción significativa en la ganancia de peso y sugiere que este habitante común del intestino del pavo puede dar lugar a problemas de rendimiento o enfermedad entérica en el campo.
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Day et al. (2015) studied this question.
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