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Enteric viruses in Brazilian turkey flocks: Single and multiple virus infection frequency according to age and clinical signs of intestinal disease

Published on Apr 1, 2013in Poultry Science2.027
· DOI :10.3382/ps.2012-02849
Joelma Moura-Alvarez2
Estimated H-index: 2
(USP: University of São Paulo),
J.L.V. Chacón6
Estimated H-index: 6
(USP: University of São Paulo)
+ 4 AuthorsA. J. Piantino Ferreira6
Estimated H-index: 6
(USP: University of São Paulo)
Abstract
  • References (55)
  • Citations (23)
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References55
Newest
#1J. Michael Day (USDA: United States Department of Agriculture)H-Index: 9
#2Linda L Ballard (USDA: United States Department of Agriculture)H-Index: 2
Last. Laszlo Zsak (USDA: United States Department of Agriculture)H-Index: 28
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Viral enteric disease is an ongoing economic burden to poultry producers worldwide, and despite considerable research, no single virus has emerged as a likely causative agent and target for prevention and control efforts. Historically, electron microscopy has been used to identify suspect viruses, with many small, round viruses eluding classification based solely on morphology. National and regional surveys using molecular diagnostics have revealed that suspect viruses continuously circulate in ...
73 CitationsSource
#1Naresh Jindal (UMN: University of Minnesota)H-Index: 11
#2Devi P. Patnayak (UMN: University of Minnesota)H-Index: 16
Last. Sagar M. Goyal (UMN: University of Minnesota)H-Index: 50
view all 5 authors...
This study was conducted to detect and characterize enteric viruses [rotavirus, turkey astrovirus-2 (TAstV-2), reovirus, and turkey coronavirus] from cases of poult enteritis syndrome (PES) in Minnesota turkeys. Of the intestinal contents collected from 43 PES cases, 25 were positive for rotavirus and 13 for small round viruses by electron microscopy (EM). Of the enteric virus-positive cases by EM (n = 27), 16 cases had rotavirus or small round viruses alone and the remaining 11 cases had both v...
57 CitationsSource
#1Naresh Jindal (UMN: University of Minnesota)H-Index: 11
#2Devi P. Patnayak (UMN: University of Minnesota)H-Index: 16
Last. Sagar M. Goyal (UMN: University of Minnesota)H-Index: 50
view all 5 authors...
The present study was undertaken to detect and characterize enteric viruses (rotavirus, astrovirus, reovirus, and coronavirus) in breeder poults. Five turkey breeder flocks were selected. Faecal samples were collected from all flocks at 1 week of age and then every other week until the poults reached 9 weeks of age. The faecal samples were pooled in groups of five. Of the 193 pools (“samples”) tested by reverse transcription-polymerase chain reaction, 47.2%, 30.6%, and 10.4% samples were positiv...
42 CitationsSource
#1Amarilis Novaes D'Elboux Bunger (USP: University of São Paulo)H-Index: 1
#2Jorge Luis Chacón (USP: University of São Paulo)H-Index: 9
Last. Antonio José Piantino Ferreira (USP: University of São Paulo)H-Index: 24
view all 4 authors...
Abstract Turkey coronavirus (TCoV) is a causative agent associated with poult enteritis and mortality syndrome (PEMS) in turkeys worldwide. The disease is an acute, highly contagious enteric disease that is characterized by depression, anorexia, diarrhea, and high mortality in commercial turkey flocks. The presence of TCoV in 12 intestinal-content samples, from turkey flocks aged between 10 and 104 days and exhibiting severe enteritis, was monitored during the period of 2004 to 2006. TCoV detect...
8 CitationsSource
#1S. E. L. da Silva (UFU: Federal University of Uberlandia)H-Index: 1
#2Ana Maria Bonetti (UFU: Federal University of Uberlandia)H-Index: 12
Last. Tereza C. Cardoso (UNESP: Sao Paulo State University)H-Index: 13
view all 6 authors...
A survey of Turkey Coronavirus (TCoV) and Astrovirus (TAstV-2) prevalence was carried out from February to December during 2006 year in semiarid region of Brazil, from a turkey producer area, localized in South Eastern of Brazil. To asses the risk factor related to clinical material, climatic condition and type of RT-PCR applied, cloacal swabs (CS), faeces, sera, bursa of Fabricius (BF), thymus (TH) and spleen (SP) and ileumcaeca region were collected from 30-day-old poults suffering of enteriti...
6 CitationsSource
#1Naresh Jindal (UMN: University of Minnesota)H-Index: 11
#2Devi P. PatnayakH-Index: 16
Last. Sagar M. GoyalH-Index: 50
view all 5 authors...
Abstract A retrospective study was conducted to determine the occurrence of poult enteritis syndrome (PES) in Minnesota from January 2002 to December 2007. PES is an infectious intestinal disease of young turkeys between 1 day and 7 wk of age and is characterized by diarrhea, depression, and lethargy with pale intestines and/or excessively fluid cecal contents. During the study period, samples from 1736 turkey flocks were submitted to the Minnesota Veterinary Diagnostic Laboratory for disease in...
28 CitationsSource
#1Naresh Jindal (UMN: University of Minnesota)H-Index: 11
#2Devi P. Patnayak (UMN: University of Minnesota)H-Index: 16
Last. Sagar M. Goyal (UMN: University of Minnesota)H-Index: 50
view all 5 authors...
Poult enteritis syndrome (PES) is an infectious disease of turkey poults characterized by diarrhea, dullness, and depression. Five experiments were conducted to reproduce the disease in turkey poults using intestinal contents of PES-affected birds. In all experiments, poults at 14 d of age were divided into 4 groups and were orally given 2 mL of unfiltered supernatant, filtered supernatant, sediment dissolved in PBS, or PBS alone. Inocula in experiments 1, 3, and 5 consisted of intestinal conten...
25 CitationsSource
#1Mary J. Pantin-Jackwood (ARS: Agricultural Research Service)H-Index: 35
#2J. Michael Day (ARS: Agricultural Research Service)H-Index: 7
Last. Erica Spackman (ARS: Agricultural Research Service)H-Index: 39
view all 4 authors...
Abstract Intestinal samples collected from 43 commercial broiler and 33 commercial turkey flocks from all regions of the United States during 2005 and 2006 were examined for the presence of astrovirus, rotavirus, reovirus, and coronavirus by reverse transcription-polymerase chain reaction (PCR), and for the presence of groups 1 and 2 adenovirus by PCR. Phylogenetic analysis was performed to further characterize the viruses and to evaluate species association and geographic patterns. Astroviruses...
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#1Peter R. Woolcock (UC Davis: University of California, Davis)H-Index: 22
#2H. L. Shivaprasad (UC Davis: University of California, Davis)H-Index: 31
Abstract Poult enteritis (PE) is one of the most common diseases seen in young turkey flocks. Since 1993, more than 1800 cases of suspected PE have been submitted for examination by negative stain electron microscopy; this has involved more than 2400 individual results, because in many cases more than one virus was identified; at least 1500 individual results were positive for viruses. Viruses have been identified in poults as young as 3 days and up to 9 wk of age. The most commonly found viruse...
30 CitationsSource
#1Mary J. Pantin-Jackwood (USDA: United States Department of Agriculture)H-Index: 35
#2Erica Spackman (USDA: United States Department of Agriculture)H-Index: 39
Last. J. Michael Day (USDA: United States Department of Agriculture)H-Index: 9
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The pathogenicity of three different type 2 turkey astroviruses (TAstV-2) was studied in specific pathogen free turkeys. These viruses differ based on sequence analysis of the capsid gene. Poults were inoculated at 2 days of age and examined during 14 days for clinical signs and virus shedding. All inoculated poults presented signs of enteric disease including diarrhoea and growth depression. Virus presence and shedding was detected by real-time reverse transcriptase-polymerase chain reaction fr...
35 CitationsSource
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Last. Yogesh Chander (National Research Centre on Equines)H-Index: 2
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Chicken astroviruses (CAstVs) infect young chicks and are associated with gastroenteritis, stunted growth or visceral gout (gout). True incidence and distribution of CAstVs as well as virus variants circulating in India is not well understood. In this study, 80 gout-affected broiler chicken flocks from Haryana, a north-western state of India, were tested for the presence of astroviruses by targeting the polymerase gene of both CAstV and avian nephritis virus (ANV) and capsid gene of CAstV. Of th...
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#1Marcus Vinícius Romero Marques (UFMG: Universidade Federal de Minas Gerais)H-Index: 5
#2S. Y Marin (UFMG: Universidade Federal de Minas Gerais)H-Index: 5
Last. Nelson Rodrigo da Silva Martins (UFMG: Universidade Federal de Minas Gerais)H-Index: 7
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ABSTRACTExtinct from nature, captive young Alagoas curassows (Pauxi mitu) were found agonizing or dead with respiratory disease. Intranuclear inclusion bodies were found in the epithelia of the trachea, associated with marked necrotic tracheitis. An Aviadenovirus was isolated in chicken eggs and characterized genetically with 99% identity to the fowl Aviadenovirus A, as based on the hexon protein gene. This is the first report of respiratory disease caused by Aviadenovirus in any cracid species ...
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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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#1Luis Fabian N Nuñez (USP: University of São Paulo)H-Index: 5
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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...
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#2Oluwole Oyetunde Oni (FUNAAB: Federal University of Agriculture, Abeokuta)H-Index: 1
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Background Avian rotaviruses (RVs) cause gastrointestinal diseases of birds worldwide. However, prevalence, diversity, epidemiology and phylogeny of RVs remain largely under-investigated in Africa.
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#2Łukasz BocianH-Index: 4
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Abstract Background Enteric diseases are an important health problem for the intensive poultry industry, resulting in considerable economic losses. Apart from such microbiological agents associated with enteritis as bacteria and parasites, a lot of research has been recently conducted on viral origin of enteric diseases. However, enteric viruses have been identified in intestinal tract of not only diseased but also healthy poultry, so their role in enteritis is still unclear. The present study a...
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#1A. Kleine (FU: Free University of Berlin)
#2Hafez M. Hafez (FU: Free University of Berlin)H-Index: 27
Last. Dörte Lüschow (FU: Free University of Berlin)H-Index: 9
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ABSTRACTDuring routine diagnosis in 2012, 69 samples of diseased turkey breeding and fattening flocks in Germany were examined for infection with aviadenoviruses by virus isolation using primary chicken embryo liver cells. In total, 21 aviadenovirus isolates, identified by a group-specific indirect immunofluorescence test, were obtained from 19 flocks. In almost all cases, molecular typing of these isolates based on partial hexon gene sequences revealed the presence of different types of turkey ...
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#1Kuldeep Dhama (IVRI: Indian Veterinary Research Institute)H-Index: 27
#2Vasudevan Gowthaman (Veterinary College, Mathura)H-Index: 1
Last. Muhammad MunirH-Index: 18
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ABSTRACTHaemorrhagic enteritis virus (HEV), an adenovirus associated with acute haemorrhagic gastro-intestinal disease of 6–11-week old turkeys predominantly hampers both humoral and cellular immunity. Affected birds are more prone to secondary complications (e.g. colibacillosis and clostridiosis) and failure to mount an effective vaccine-induced immune response. HEV belongs to the new genus Siadenovirus. Feco-oral transmission is the main route of entry of the virus and it mainly colonizes burs...
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#1Luis Ramiro Luna Espinoza (USP: University of São Paulo)H-Index: 2
#2Laila Andreia Rodrigues Beserra (USP: University of São Paulo)H-Index: 3
Last. Fabio Gregori (USP: University of São Paulo)H-Index: 11
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SUMMARY Astrovirus is a common cause of enteritis in humans and domestic animals. Here we report the detection of turkey astrovirus type 1 (TAstV-1) and chicken astrovirus (CAstV) in avian farms. Sixty fecal sample pools (five or six birds of the same flock), from chickens without apparent clinical symptoms of enteric disease from farms located in six Brazilian states, were screened by an ORF1b PCR, followed by nucleotide sequencing of amplified products and phylogenetic analysis. Six samples te...
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