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Claudete S. Astolfi-Ferreira
University of São Paulo
34Publications
7H-index
173Citations
Publications 34
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 Dec 29, 2018in Veterinary Sciences
David De la Torre2
Estimated H-index: 2
,
Claudete S. Astolfi-Ferreira7
Estimated H-index: 7
+ 1 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
Avian rotavirus A (ARtV-A) is a virus that affects young birds, causing acute diarrhea and economic losses in the poultry industry worldwide. The techniques used for the diagnosis of ARtV-A include electron microscopy, isolation in cell culture, and serology, as well as molecular techniques, such as the reverse transcription-polymerase chain reaction (RT-PCR). The objective of this work was to standardize a real-time RT-polymerase chain reaction (RT-qPCR) using SYBR Green chemistry for the rapid...
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Published on Dec 1, 2018in Brazilian Journal of Poultry Science 0.46
David De la Torre2
Estimated H-index: 2
(USP: University of São Paulo),
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo)
+ 3 AuthorsA. J. P. Ferreira5
Estimated H-index: 5
(USP: University of São Paulo)
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Published on Sep 1, 2018in Brazilian Journal of Poultry Science 0.46
David De la Torre2
Estimated H-index: 2
(USP: University of São Paulo),
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo)
+ 2 AuthorsA. J. P. Ferreira5
Estimated H-index: 5
(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
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