14 results match your criteria Brazilian Journal Of Poultry Science[Journal]

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Isolation of avian nephritis virus from chickens showing enteric disorders.

Poult Sci 2018 Oct;97(10):3478-3488

Department of Pathology, School of Veterinary Medicine, University of São Paulo (USP), Av. Prof. Dr. Orlando M. Paiva, 87, CEP 05508-270, São Paulo, SP, Brazil.

Runting-stunting syndrome (RSS) is one of the diseases associated with many detected viruses. In Brazil, there were reports of several enteric disease outbreaks in chickens in which avian nephritis virus (ANV) was detected; however, the role of ANV in the outbreaks and whether the virus was a causative agent of these cases of enteric diseases were not determined. The aim of this study was to isolate ANV in specific pathogen-free (SPF) chicken embryonated eggs (CEE) from the enteric contents of chickens showing signs of RSS. Read More

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https://academic.oup.com/ps/article/97/10/3478/5100772
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http://dx.doi.org/10.3382/ps/pey207DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6142861PMC
October 2018
20 Reads

Pathological and molecular findings of avian reoviruses from clinical cases of tenosynovitis in poultry flocks from Brazil.

Poult Sci 2018 Oct;97(10):3550-3555

Faculdade de Medicina Veterinária, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul 95320-000, Brasil.

Avian reoviruses (ARVs) can infect a variety of species worldwide. Birds can present stunting syndrome, respiratory and/or enteric diseases, immunosuppression, malabsorption, viral arthritis/tenosynovitis, and even secondary infections by other microorganisms. Flaws in conventional vaccines and the increase in the diagnostic rate of disease in the last 5 yr suggest the emergence of pathogenic ARVs in the poultry flocks worldwide. Read More

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http://dx.doi.org/10.3382/ps/pey239DOI Listing
October 2018
38 Reads

Histomorphometric study of the anterior latissimus dorsi muscle and evaluation of enzymatic markers of broilers affected with dorsal cranial myopathy.

Poult Sci 2017 Dec;96(12):4217-4223

Department of Preventive Veterinary Medicine.

Dorsal cranial myopathy (DCM), which affects the anterior latissimus dorsi (ALD) muscles of commercial broilers, is of unknown etiology, and it represents up to 6% of the partial condemnations in Brazilian slaughterhouses. This study was performed to achieve histomorphometric characterizations of the ALD muscles from male Cobb 500 broilers slaughtered at either 35 d or 42 d and to evaluate the effects of DCM on the enzymatic markers aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatine kinase (CK), and lactate dehydrogenase (LDH) and on uric acid and creatinine metabolites. Blood samples (1. Read More

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http://academic.oup.com/ps/article/96/12/4217/4201683
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http://dx.doi.org/10.3382/ps/pex252DOI Listing
December 2017
1 Read

Virulence gene content in Escherichia coli isolates from poultry flocks with clinical signs of colibacillosis in Brazil.

Poult Sci 2015 Nov 14;94(11):2635-40. Epub 2015 Sep 14.

Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001, Prédio 22, Sala 312, Bairro São José, CEP 92425-900, Canoas, RS, Brazil Simbios Biotecnologia, Rua Cai, 541, Vila Princesa Izabel, CEP 94940-030, Cachoeirinha, RS, Brazil

Escherichia coli is a commensal bacterium of the bird's intestinal tract, but it can invade different tissues resulting in systemic symptoms (colibacillosis). This disease occurs only when the E. coli infecting strain presents virulence factors (encoded by specific genes) that enable the adhesion and proliferation in the host organism. Read More

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http://dx.doi.org/10.3382/ps/pev256DOI Listing
November 2015
4 Reads

An assessment of the effectiveness of four in-house treatments to reduce the bacterial levels in poultry litter.

Poult Sci 2015 Sep 27;94(9):2094-8. Epub 2015 Jul 27.

Federal University of Pelotas, Faculty of Agronomy Eliseu Maciel, Department of Animal Science, 354, 96010-900 Pelotas, RS, Brazil

Although the use of quicklime (CaO) and tarping are common handling practices aimed at the reuse of litter in the Brazilian poultry industry, few scientific studies have proven the effectiveness of these methods in reducing the pathogenic microbial load during fallowing. The objective of this study was to evaluate the following litter treatments: T1 no treatment (control), T2 quicklime (300 g m(-2)), T3 tarping, T4 tarping+quicklime (300 g m(-2)). The litter samples were collected on day zero and on the sixth and twelfth days after the start of fallowing. Read More

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http://dx.doi.org/10.3382/ps/pev195DOI Listing
September 2015

Assessment of welfare of Brazilian and Belgian broiler flocks using the Welfare Quality protocol.

Poult Sci 2015 Aug 6;94(8):1758-66. Epub 2015 Jun 6.

Animal Welfare Laboratory, Federal University of Paraná, Rua dos Funcionários, 1540, CEP 80035-050, Curitiba, Brazil.

The Welfare Quality consortium has proposed a science-based protocol for assessing broiler chicken welfare on farms. Innovative features make the protocols particularly suited for comparative studies, such as the focus on animal-based welfare measures and an integration procedure for calculating an overall welfare status. These protocols reflect the scientific status up to 2009 but are meant to be updated on the basis of inter alia implementation studies. Read More

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http://dx.doi.org/10.3382/ps/pev167DOI Listing
August 2015
5 Reads

Isolation of Campylobacter from Brazilian broiler flocks using different culturing procedures.

Poult Sci 2014 Nov 29;93(11):2887-92. Epub 2014 Aug 29.

Empresa Brasileira de Pesquisa Agropecuária-Embrapa Suínos e Aves, BR 153, Km 110, 89700-000, Concordia, SC, Brazil.

Conventional culturing methods enable the detection of Campylobacter in broiler flocks. However, laboratory culture of Campylobacter is laborious because of its fastidious behavior and the presence of competing nontarget bacteria. This study evaluated different protocols to isolate Campylobacter from broiler litter, feces, and cloacal and drag swabs. Read More

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http://dx.doi.org/10.3382/ps.2014-03943DOI Listing
November 2014

Infectious bronchitis virus in different avian physiological systems-a field study in Brazilian poultry flocks.

Poult Sci 2014 Aug 3;93(8):1922-9. Epub 2014 Jun 3.

Laboratório de Diagnóstico Molecular, Universidade Luterana do Brasil (ULBRA), Av. Farroupilha, 8001, Prédio 22, Sala 312, Bairro São José, CEP 92425-900, Canoas, RS, Brazil Simbios Biotecnologia, Rua Cai, 541, Vila Princesa Izabel, CEP 94940-030, Cachoeirinha, RS, Brazil

Avian infectious bronchitis is a highly contagious viral disease with economic effects on poultry agribusiness. The disease presents multi-systemic clinical signs (respiratory, renal, enteric, and reproductive) and is caused by one coronavirus (infectious bronchitis virus, IBV). Infectious bronchitis virus is classified into different serotypes and genotypes (vaccine strains and field variants). Read More

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http://dx.doi.org/10.3382/ps.2014-03875DOI Listing
August 2014
24 Reads

Action of Brazilian propolis on hematological and serum biochemical parameters of Blue-fronted Amazons (Amazona aestiva, Linnaeus, 1758) in captivity.

Poult Sci 2014 Jul 26;93(7):1688-94. Epub 2014 May 26.

Departamento de Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Univ Estadual Paulista (UNESP), Botucatu, São Paulo, Brazil 18.618-970.

The present study aimed to evaluate the effect of propolis use on hematological and serum biochemical parameters in Blue-fronted Amazons (Amazona aestiva). For this, 12 adult birds were distributed randomly into individual cages, divided into treatments with different propolis levels (A = 0.0%; B = 0. Read More

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http://dx.doi.org/10.3382/ps.2013-03738DOI Listing
July 2014
2 Reads

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

Poult Sci 2013 Apr;92(4):945-55

Department of Pathology, University of São Paulo, São Paulo, Brazil.

Poult enteritis complex has been associated with enteritis and reduction in growth rates in commercial turkeys worldwide. Intestinal samples from 76 turkey flocks from different Brazilian states affected or not with intestinal disorders were evaluated for the presence of adenovirus groups 1 and 2 (TAV), astrovirus types 1 and 2 (TAstV-1 and TAstV-2), turkey coronavirus (TCoV), reovirus, rotavirus, and avian nephritis virus (ANV) using PCR. The percentage of positive samples was categorized according to the geographic origin, age of the flocks, and presence of clinical signs of intestinal disease. Read More

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http://dx.doi.org/10.3382/ps.2012-02849DOI Listing

Growth curves for ostriches (Struthio camelus) in a Brazilian population.

Poult Sci 2013 Jan;92(1):277-82

Departamento de Ciências Exatas, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista, 14884-900, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, São Paulo, Brazil.

The objective of this study was to fit growth curves using nonlinear and linear functions to describe the growth of ostriches in a Brazilian population. The data set consisted of 112 animals with BW measurements from hatching to 383 d of age. Two nonlinear growth functions (Gompertz and logistic) and a third-order polynomial function were applied. Read More

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http://dx.doi.org/10.3382/ps.2012-02380DOI Listing
January 2013

Research on Salmonella in broiler litter reused for up to 14 consecutive flocks.

Poult Sci 2011 Oct;90(10):2257-62

Federal University of Pelotas, Department of Animal Science, Pelotas, RS, Brazil.

The reuse of poultry litter is a common practice in the Brazilian poultry industry for flocks of healthy chickens, due to 2 fundamental aspects: production cost and environmental sustainability. Litter is a potentially important source of infection for Salmonella, which requires characterization by microbiological analysis in different aspects of management and reuse. The objective of this study was to verify the occurrence of Salmonella in broiler litters reused up to 14 times in Brazilian poultry farms. Read More

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http://dx.doi.org/10.3382/ps.2011-01583DOI Listing
October 2011

Inoculation of newly hatched broiler chicks with two Brazilian isolates of Salmonella Heidelberg strains with different virulence gene profiles, antimicrobial resistance, and pulsed field gel electrophoresis patterns to intestinal changes evaluation.

Poult Sci 2009 Apr;88(4):750-8

Centre for Diagnostics and Research in Avian Pathology, Faculty of Veterinary Medicine, Federal University of Rio Grande do Sul, Av. Bento Gonçalves, 8824, Agronomia, Porto Alegre, Rio Grande do Sul, Brazil, 91546-000.

Salmonella Heidelberg is one of the 3 most frequently isolated serovars from human Salmonella cases in Canada, and the fourth most commonly reported Salmonella serovar in human foodborne disease cases in the United States. Since 1962, Salmonella Heidelberg has been isolated and reported in poultry and poultry products in Brazil. The poultry industry has focused efforts on reducing salmonellae incidence in live production in an effort to reduce Salmonella in the processing plant. Read More

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http://dx.doi.org/10.3382/ps.2008-00466DOI Listing
April 2009
2 Reads

Relative bioavailability of phosphorus in feed and agricultural phosphates for poultry.

Poult Sci 1999 Dec;78(12):1729-36

Departamento de Nutrição e Produção Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Brazil.

Nine hundred fifty male Hubbard chicks were used in a 21-d study (10 birds per battery cage) to determine relative bioavailability of P (RBP) in four feed-grade phosphates (FP) [two Brazilian dicalcium and two U.S.-made phosphates (di-monocalcium and defluorinated)] and four Brazilian agricultural grade phosphates (AP) [single (AP-1), and triple (AP-2) superphosphates, monoammonium (AP-3), and thermomagnesium (AP-4) phosphates]. Read More

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http://dx.doi.org/10.1093/ps/78.12.1729DOI Listing
December 1999
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