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Luis Fabian N Nuñez
University of São Paulo
18Publications
5H-index
66Citations
Publications 18
Newest
Published on Jan 18, 2019
Natalia Azevedo Philadelpho2
Estimated H-index: 2
,
Yamê Miniero Davies1
Estimated H-index: 1
+ 5 AuthorsAntonio Jp Ferreira1
Estimated H-index: 1
Avian bornaviruses (ABV) are the causative agents of proventricular dilatation disease (PDD), a fatal neurological disease considered to be a major threat to psittacine bird populations. We performed a RT-PCR survey to detect the presence of Canary avian bornavirus (CnBV) in passeriformes related to different clinical manifestations, such as sudden death, neurological signs, apathy, anorexy, excessive beak growth and PDD. A total of 227 samples from captive and wild canaries were included, of wh...
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Published on Oct 1, 2018in Poultry Science 2.22
Luis Fabian N Nuñez5
Estimated H-index: 5
(USP: University of São Paulo),
Silvana Hipatia Santander Parra5
Estimated H-index: 5
(USP: University of São Paulo)
+ 5 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
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Published on Jul 25, 2018in Veterinary Sciences
Luis Fabian N Nuñez5
Estimated H-index: 5
,
Silvana H. Santander-Parra + 6 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
Many viruses have been associated with runting and stunting syndrome (RSS). These viral infections mainly affect young chickens, causing apathy, depression, ruffled feathers, cloacal pasting, and diarrhea. Chicken Parvovirus (ChPV) is such an infection and has been detected in chickens showing signs of enteric diseases worldwide. Therefore, the present study aims to develop a sensitive real-time fast-qPCR assay based on SYBR® Green for detection and quantification of ChPV. A 561-bp non-structura...
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Published on Jul 4, 2018in British Poultry Science 1.10
Silvana Hipatia Santander Parra5
Estimated H-index: 5
(USP: University of São Paulo),
Luis Fabian N Nuñez5
Estimated H-index: 5
(USP: University of São Paulo)
+ 2 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
1. Infectious laryngotracheitis is a respiratory disease that affects the poultry industry worldwide. It is common in flocks with high-bird density, causing major economic losses.2. In this study, a SYBR® FAST polymerase chain reaction (PCR) double-strand DNA intercalating agent assay was performed for the detection of infectious laryngotracheitis virus (ILTV) in clinical samples in comparison with a conventional nested-PCR, both based on the glycoprotein E encoding gene. This assay amplified 56...
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Published on Mar 29, 2018in Veterinary Sciences
David De la Torre2
Estimated H-index: 2
,
Luis Fabian N Nuñez5
Estimated H-index: 5
+ 1 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
Enteric viruses play an important role in the Brazilian poultry industry due to the economic impact of resulting low yields of broilers, layers, and breeders. The most common enteric viruses affecting commercial flocks in Brazil include Fowl Adenovirus of group I (FAdV-I), Chicken Parvovirus (ChPV), Chicken Astrovirus (CAstV), Avian Nephritis Virus (ANV), Infectious Bronchitis Virus (IBV), Avian Reovirus (AReo), and Avian Rotavirus (ARtV). The aim of this study was to identify single and multipl...
4 Citations Source Cite
Published on Mar 1, 2018
David De la Torre2
Estimated H-index: 2
(USP: University of São Paulo),
Luis Fabian N Nuñez5
Estimated H-index: 5
(USP: University of São Paulo)
+ 2 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
Avian adenovirus has been reported in many countries and is an infectious agent related with inclusion body hepatitis, hepatitis-hydropericardium syndrome (HHS), and respiratory and enteric conditions in chickens worldwide. The objective of this study was to detect and establish the molecular sequences of the hexon gene from the avian adenovirus strains of group I (FAdV-I) isolated from birds with hepatitis-hydropericardium syndrome (HHS), malabsorption syndrome and runting-stunting syndrome, to...
2 Citations Source Cite
Published on Nov 2, 2017in British Poultry Science 1.10
Claudia Carranza3
Estimated H-index: 3
(USP: University of São Paulo),
Claudete S. Astolfi-Ferreira7
Estimated H-index: 7
(USP: University of São Paulo)
+ 6 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
1. Infectious bronchitis virus (IBV) variants in Brazil were isolated during 2010-2015 for epidemiological and molecular analysis to characterise the different variants and perform a bioinformatic analysis to compare with sequences of variants collected over the previous 40 years. 2. Of the 453 samples examined, 61.4% were positive for IBV and 75.9% of these were considered to have the BR-I genotype and were detected in birds of all ages distributed in all five Brazilian regions. 3. The ratio of...
1 Citations Source Cite
Published on Oct 1, 2017in Pesquisa Veterinaria Brasileira 0.39
Claudete S. Astolfi-Ferreira7
Estimated H-index: 7
(USP: University of São Paulo),
Marcelo R.S. Pequini1
Estimated H-index: 1
(USP: University of São Paulo)
+ 5 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
1 Citations Source Cite
Published on May 17, 2017
Silvia Jurado , Samantha Morales + 3 AuthorsByron Puga1
Estimated H-index: 1
El peroxido de hidrogeno, en leche cruda, es utilizado para enmascarar la acidez de leche contaminada con bacterias y perjudica a microorganismos beneficiosos para la elaboracion de derivados. Por esta razon, en Ecuador, su uso esta prohibido por la NTE INEN 9. Se determino el tiempo de eliminacion del mismo y su efecto en caracteristicas fisico-quimicas y microbiologicas en leche cruda. Se tomaron muestras diarias con conservante (Bronopol) y sin conservante, y con muestra testigo sin alteracio...
Published on Jul 1, 2016in Pesquisa Veterinaria Brasileira 0.39
Luis Fabian N Nuñez5
Estimated H-index: 5
(USP: University of São Paulo),
Silvana Hipatia Santander Parra5
Estimated H-index: 5
(USP: University of São Paulo)
+ 4 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections during outbreaks and have suggested that they might be determining factors in the aetiology of enteric disease. This study shows high detection rates of enteric viruses in the pancreas and spleen in sample...
5 Citations Source Cite
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