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Claudete Serrano Astolfi-Ferreira
University of São Paulo
16Publications
7H-index
171Citations
Publications 16
Newest
Published on Jun 1, 2016in Poultry Science 2.22
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo),
S.H. Santander Parra2
Estimated H-index: 2
(USP: University of São Paulo)
+ 3 AuthorsA. J. Piantino Ferreira6
Estimated H-index: 6
(USP: University of São Paulo)
Chicken astrovirus (CAstV) is one of many viruses related to enteric diseases in poultry that are associated with Runting-Stunting Syndrome (RSS), which affects young chickens. CAstV was also recently associated with an unusual condition in chicks called "white chicks." Some hatcheries in certain states of Brazil have reported several incubation problems, mortality, and the presence of chicks with white plumages over the past several months. These chicks were termed locally as "white chicks." Th...
7 Citations Source Cite
Published on Apr 1, 2016in Poultry Science 2.22
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo),
Lilian Rose Marques de Sá2
Estimated H-index: 2
(USP: University of São Paulo)
+ 3 AuthorsA. J. P. Ferreira5
Estimated H-index: 5
(USP: University of São Paulo)
Enteric disorders are an important cause of economic losses in broiler chickens worldwide. Several agents have been associated with enteric problems, such as viruses, bacteria, and parasites. In this study, broiler chickens showing signs of enteric disorders were subjected to molecular diagnosis for several viral agents and also for pathological examination for elucidating this problem. Thus, the chickens were screened for avian nephritis virus (ANV), chicken astrovirus (CAstV), avian rotavirus ...
6 Citations Source Cite
Published on Apr 28, 2015
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo),
S. H. Santander-Parra (USP: University of São Paulo)+ 1 AuthorsA. J. P. Ferreira5
Estimated H-index: 5
(USP: University of São Paulo)
Introducao: O parvovirus de galinha (ChPV) e um DNA virus que tem sido relacionado em avicultura com problemas entericos, principalmente com a sindrome do nanismo e retardo do crescimento. A doenca causa grandes perdas economicas na avicultura pela diminuicao do ganho de peso, queda na conversao alimentar e mortalidade. O presente trabalho investigou se o ChPV desenvolve doenca enterica em aves infectadas experimentalmente. Metodos: aves SPF foram inoculadas com a suspensao viral de ChPV isolado...
Published on Mar 1, 2015in Brazilian Journal of Poultry Science 0.46
Shs Parra1
Estimated H-index: 1
(USP: University of São Paulo),
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo)
+ 1 AuthorsJp Ferreira1
Estimated H-index: 1
(USP: University of São Paulo)
Infectious laryngotracheitis is a very important respiratory disease because it causes significant economic losses in the poultry industry. The target of ILTV infections is the respiratory system, and the main organ in which the virus remains latent is the trigeminal ganglia. However, the virus has demonstrated tropism for other organs as well. The present study was conducted to determine the presence of Infectious Laryngotracheitis Virus (ILTV) in the state of Sao Paulo. Samples submitted to LA...
2 Citations Source Cite
Published on Jan 2, 2015in British Poultry Science 1.10
L. F. N. Nuñez4
Estimated H-index: 4
(USP: University of São Paulo),
S.H. Santander Parra2
Estimated H-index: 2
(USP: University of São Paulo)
+ 2 AuthorsA. J. Piantino Ferreira6
Estimated H-index: 6
(USP: University of São Paulo)
Abstract1. The presence of parvovirus in chickens with enteric disease was investigated in commercial flocks in Brazil.2. The intestinal contents of chickens exhibiting clinical signs of diarrhoea, weight loss or mortality were examined, and chicken parvovirus (chPV) was identified using a polymerase chain reaction (PCR) assay. The samples were sequenced and inoculated into specific-pathogen-free (SPF) embryonated eggs to isolate the virus.3. Necropsies showed that the embryos were dwarfish, hae...
4 Citations Source Cite
Published on Dec 1, 2014in Beneficial Microbes 2.31
Luciana Allegretti3
Estimated H-index: 3
(USP: University of São Paulo),
L. Revolledo6
Estimated H-index: 6
(USP: University of São Paulo)
+ 4 AuthorsAlberto Ferreira3
Estimated H-index: 3
(USP: University of São Paulo)
In Brazil, the blue-fronted Amazon parrot (Amazona aestiva) is a common pet. The faecal microbiota of these birds include a wide variety of bacterial species, the majority of which belong to the Gram-positive lactic acid bacteria (LAB) clade. The aim of this study was to investigate differences in the diversity and abundance of LAB and Bifidobacterium spp. in the cloacae between wild and captive birds and to select, identify and characterise LAB for consideration as a parrot probiotic. Cloacal s...
6 Citations Source Cite
Published on Aug 1, 2014in Pesquisa Veterinaria Brasileira 0.39
Elena Mettifogo9
Estimated H-index: 9
(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)
Lotes comerciais de frangos de uma granja localizada no Estado de Sao Paulo, Brasil, apresentavam diarreia, depressao, aumento de mortalidade e baixo ganho de peso. Apos o exame post-mortem, sinais classicos da sindrome de hepatite por corpusculo de inclusao/hidropericardio (IBH/HPS) foram observados incluindo hepatomegalia com aspecto amarelado palido e liquido de coloracao amarelo palha no saco pericardio. Alem disso, as alteracoes macroscopicas foram tambem observadas nos rins, pâncreas, timo...
6 Citations Source Cite
Published on May 4, 2014in British Poultry Science 1.10
Jorge Luis Chacón10
Estimated H-index: 10
(USP: University of São Paulo),
M. S. Assayag3
Estimated H-index: 3
(USP: University of São Paulo)
+ 4 AuthorsA. J. Piantino Ferreira6
Estimated H-index: 6
(USP: University of São Paulo)
Abstract1. The possibility that infectious bronchitis virus (IBV) variants isolated from broilers with enteric and respiratory problems have a different tropism and pathological outcome from those IBV strains causing classical respiratory disease was investigated.2. IBV variants were isolated from broiler flocks with enteric and respiratory problems in two regions of Brazil. The USP-10 isolate, of enteric origin, was inoculated via the oral oroculonasal routes into IBV-antibody-free broilers and...
10 Citations Source Cite
Published on Jan 1, 2014in The Scientific World Journal
Elena Mettifogo9
Estimated H-index: 9
,
Luis Fabian N Nuñez5
Estimated H-index: 5
+ 5 AuthorsAntonio José Piantino Ferreira16
Estimated H-index: 16
(USP: University of São Paulo)
Several viruses have been identified in recent years in the intestinal contents of chickens and turkeys with enteric problems, which have been observed in commercial farms worldwide, including Brazil. Molecular detection of these viruses in Brazil can transform to a big threat for poultry production due to risk for intestinal integrity. This disease is characterized by severely delayed growth, low uniformity, lethargy, watery diarrhea, delayed feed consumption, and a decreased conversion rate. C...
20 Citations Source Cite
Published on Apr 1, 2013in Poultry Science 2.22
Joelma Moura-Alvarez2
Estimated H-index: 2
(USP: University of São Paulo),
Jlv Chacón4
Estimated H-index: 4
(USP: University of São Paulo)
+ 4 AuthorsA. J. Piantino Ferreira6
Estimated H-index: 6
(USP: University of São Paulo)
23 Citations Source Cite
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