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Adhesion of Salmonella Enteritidis to stainless steel surfaces BJM
Oliveira,Kelly; Oliveira,Tereza; Teixeira,Pilar; Azeredo,Joana; Oliveira,Rosário.
Adhesion of microorganisms to food processing surfaces and the problems it causes are a matter of strong concern to the food industry. Contaminated food processing surfaces may act as potential sources of transmission of pathogens in food industry, catering and in the domestic environments. Several studies have shown that adhesion of bacteria to surfaces partly depends upon the nature of the inert surfaces and partly upon the bacterial surface properties. The aim of this study was to compare the adhesion of four different strains of Salmonella Enteritidis to stainless steel 304 (SS 304). The effect of surface hydrophobicity and surface elemental composition on the adhesion process was also analysed. Hydrophobicity was evaluated through contact angle...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adhesion; Salmonella Enteritidis; Hydrophobicity.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200026
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Antibiotic resistance in Salmonella Enteritidis isolated from broiler carcasses BJM
Cardoso,Martha Oliveira; Ribeiro,Aldemir Reginato; Santos,Luciana Ruschel dos; Pilotto,Fernando; Moraes,Hamilton L.S. de; Salle,Carlos Tadeu Pippi; Rocha,Silvio Luís da Silveira; Nascimento,Vladimir Pinheiro do.
Eighty Salmonella Enteritidis strains isolated from broiler carcasses between May 1995 and April 1996 in the State of Rio Grande do Sul, Brazil, were tested for antibiotic susceptibility using the disk diffusion method. Resistance to colistin, novobiocin, erythromycin and tetracycline was observed in 100% of the isolates. The strains showed intermediate resistance at different levels to kanamycin (1.25%), enrofloxacin (3.75%), neomycin (3.75%), fosfomycin (20%), sulphonamides (86.25%) and nitrofurantoin (90%). Resistance to ciprofloxacin, norfloxacin, gentamicin, polymyxin B, sulphametrim and sulphazotrim was not found. Since resistance to antibiotics especially those introduced in the last decades, was detected, it is recommended that their use must be...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Antibiotic resistance; Broiler carcasses; Salmonella Enteritidis.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300030
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Atividade antibacteriana de desinfetantes para uso na produção orgânica de aves Ciência Rural
Jaenisch,Fátima Regina Ferreira; Kuchiishi,Suzana Satomi; Coldebella,Arlei.
A determinação de produtos eficazes para a desinfecção e que não causem danos ao meio ambiente é um grande desafio para a avicultura orgânica. Neste trabalho foram avaliadas as atividades antibacterianas de quatro desinfetantes: ácido peracético, amônia quaternária, hipoclorito de sódio a 1% e a 0,1% de cloro ativo e do composto de ácidos orgânicos (cítrico, lático e ascórbico), frente às amostras padrão de Escherichia coli, Salmonella enteritidis e Staphylococcus aureus, na presença e ausência de matéria orgânica, sob duas diferentes temperaturas e tempo de contato de 20 minutos. Os ácidos orgânicos mostraram-se menos efetivos na presença de matéria orgânica. No entanto, o ácido peracético, na ausência desta, foi o mais eficaz frente à S. Enteritidis e...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodegradável; Avicultura orgânica; Escherichia coli; Salmonella Enteritidis; Staphylococcus aureus.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000200020
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Behavior of Salmonella heidelberg and Salmonella enteritidis strains following broiler chick inoculation: evaluation of cecal morphometry, liver and cecum bacterial counts and fecal excretion patterns BJM
Borsoi,Anderlise; Santos,Luciana Ruschel do; Rodrigues,Laura Beatriz; Moraes,Hamilton Luiz de Souza; Salle,Carlos Tadeu Pippi; Nascimento,Vladimir Pinheiro do.
Over the years, Salmonella Heidelberg (SH) has gained prominence in North America poultry production and in the poultry production of other countries. Salmonella Heidelberg has been isolated and reported from poultry and poultry products in Brazil since 1962, whereas Salmonella Enteritidis (SE) has only emerged as a serious problem in poultry and public health since 1993. These strains of Salmonella can cause intestinal problems in newly hatched chicks, and infection may persist until adulthood. Upon slaughter of chickens, Salmonella can contaminate carcasses, a condition that poses a threat to human health. The aim of this study was to compare the fecal excretion of Salmonella Enteritidis and Salmonella Heidelberg in newly hatched chicks (orally...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Heidelberg; Salmonella Enteritidis; Fecal Excretion; Villus/crypt ratio; Broiler.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100034
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Commercially laid eggs vs. discarded hatching eggs: contamination by Salmonella spp BJM
Kottwitz,Luciana B.M.; Leão,Joice Aparecida; Back,Alberto; Rodrigues,Dalia dos P.; Magnani,Marciane; Oliveira,Tereza C.R.M. de.
Salmonella enterica is frequently associated with outbreaks of human salmonellosis, and products of avian origin, such as eggs and chicken meat, are the main vehicles of its transmission. The present study describes the occurrence of different serovars of Salmonella enterica and phagotypes of S. enterica serovar Enteritidis in eggs destined for human consumption. Four thousand eggs obtained from commercial egg laying farms and one thousand discarded hatching eggs from broiler farms, which were acquired at farmers' markets and informal shops, were analyzed. Salmonella spp. was isolated from 52.0% of the discarded hatching eggs, in which the predominant serovar was Enteritidis (84.6%), and the predominant Salmonella Enteritidis phagotype (PT) was PT7...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Discarded eggs; Salmonella Enteritidis; Antimicrobial resistance; Salmonellosis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200004
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Control of Salmonella enterica serovar Enteritidis in laying hens by inactivated Salmonella Enteritidis vaccines BJM
Freitas Neto,Oliveiro Caetano de; Mesquita,Aline Lopes; Paiva,Jaqueline Boldrin de; Zotesso,Fábio; Berchieri Júnior,Angelo.
Salmonella Enteritidis is one of the agents that is responsible for outbreaks of human foodborne salmonellosis caused by Salmonella Enteritidis and is generally associated with the consumption of poultry products. Inactivated Salmonella Enteritidis cell vaccine is one of the available methods to control Salmonella Enteritidis in breeders and laying hens, however results in terms of efficacy vary. This vaccine has never been tested in Brazil, therefore, the present work was carried out to assess three commercial inactivated Salmonella Enteritidis vaccines allowed in Brazil. Four hundred white light variety commercial laying hens were obtained at one-day-of age. At eight weeks old, the birds were divided into four groups with one hundred animals each. Birds...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Enteritidis; Oil-emulsion inactivated vaccines; Control; Laying hen.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200034
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Controle da infecção por Salmonella Enteritidis em frangos de corte com ácidos orgânicos e mananoligossacarídeo Ciência Rural
Bassan,Joana Darc Lopes; Flôres,Maristela Lovato; Antoniazzi,Taiane; Bianchi,Eloisa; Kuttel,Javier; Trindade,Michele Martins.
O objetivo deste estudo foi avaliar a ação de dois ácidos orgânicos (ácido fórmico e ácido propiônico) e de um mananoligossacarídeo (MOS) adicionados à dieta no controle da infecção intestinal por Salmonella Enteritidis (SE) em frangos de corte. Neste estudo de 39 dias, foram utilizadas 150 aves, de um dia de idade, da linhagem Cobb, lote misto, livre de SE, divididas em seis tratamentos (T) com 25 animais cada, em que: T1 (ausência de infecção), T2 (ácidos orgânicos e ausência de infecção), T3 (ácidos orgânicos + MOS e ausência de infecção), T4 (ácidos orgânicos e infecção com SE), T5 (ácidos orgânicos + MOS e infecção com SE) e T6 (infecção com SE). No 4° dia após o alojamento, a cama foi instilada com SE e a cada sete dias cinco aves por grupo foram...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Enteritidis; Frango de corte; Ácidos orgânicos; Mananoligossacarídeo.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782008000700025
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Detecção rápida de Salmonella Enteritidis em alimentos por ensaio imunoenzimático ELISA Ciênc. Tecnol. Aliment.
Alcocer,Iliana; Oliveira,Tereza Cristina R. M. de.
O método convencional de detecção de Salmonella spp., além de trabalhoso, consome longo tempo, necessitando-se normalmente de 4 a 5 dias para a confirmação da presença dessa bactéria no alimento. Portanto, o emprego de métodos rápidos e simples é importante para o diagnóstico laboratorial de toxinfecção alimentar e para o controle de qualidade. O objetivo principal deste trabalho foi a padronização de ensaio imunoenzimático-ELISA para detecção de Salmonella Enteritidis em alimentos. O ensaio utilizou anticorpos policlonais para flagelina produzidos em coelho. O anti-soro apresentou pouca reação cruzada com os sorotipos de Salmonella e as diferentes espécies de enterobactérias testadas. A sensibilidade do ensaio foi de 10(4) células/mL, quando testado em...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Enteritidis; ELISA; Detecção rápida.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612003000300019
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Detection and transfer of antimicrobial resistance gene integron in Salmonella Enteritidis derived from avian material Rev. Bras. Ciênc. Avic.
Okamoto,AS; Andreatti Filho,RL; Rocha,TS; Menconi,A; Marietto-Gonçalves,GA.
The expansion of global poultry production has increased the need to reduce or control the agents responsible for economic losses, including Salmonella spp. These bacteria are also of public health concern due to their potential to cause food poisoning, and, more recently, due to the antimicrobial resistance presented by these bacteria. Molecular biology is an important tool currently used in the diagnosis and research studies of main poultry diseases. The present studied analyzed 100 samples of Salmonella Enteritidis (SE) isolated from avian material aiming at detecting the class 1 integron gene, Integroninvolved in antimicrobial resistance, by means of polymerase chain reaction (PCR), and comparing it with plate inhibition test. Subsequently, SE samples...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Integron; Gene transfer; Resistance to antimicrobials; Salmonella Enteritidis.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000300009
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Detection of virulence genes in Salmonella Enteritidis isolated from different sources BJM
Oliveira,Sílvia Dias de; Rodenbusch,Carla Rosane; Michael,Geovana B.; Cardoso,Marisa I.R.; Canal,Cláudio Wageck; Brandelli,Adriano.
The presence of three virulence genes, invA, spvR, and spvC, was determined in Salmonella Enteritidis isolated from poultry, pigs, humans and food. All isolates were positive for the invA gene, with 91.2% being positive for spvR and 90.2% for spvC. There was no significant difference in the prevalence of the virulence genes between isolates from different sources. The results indicate that there is a putative high virulence potential for the S. Enteritidis isolates characterized.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Enteritidis; Virulence; Spv; PCR.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000500042
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Development of an enzyme-linked immunosorbent assay for quantification of Salmonella enteritidis-specific antibodies in egg yolk Rev. Bras. Ciênc. Avic.
Tayeb,IT; Nehme,P; Jaber,L; Barbour,EK.
The present study aims at developing an indirect ELISA to quantify yolk antibodies specific to all surface proteins of the invasive Salmonella Enteritidis (SE), which acquired the 1.8, 14.1, and ~ 50 Kb plasmids. An ELISA checkerboard was used in four different experiments to account for the different parameters included in the preliminary ELISA procedure, and consequently to maximize the difference in Optical Density (OD) values between control positive and negative yolk samples. The first experiment aimed at studying the impact of 5% Bovine Serum Albumin (BSA) dissolved in distilled water as a blocking reagent on a 28 µg/well SE antigen-coated plate, while applying the positive and negative control yolk samples to different concentrations of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antibodies; Egg yolk; ELISA; Salmonella Enteritidis.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400009
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Dissemination of Salmonella enteritidis by experimentally-infected pigeons Rev. Bras. Ciênc. Avic.
Albuquerque,ÁH; Cardoso,WM; Teixeira,RSC; Lopes,ES; Sales,RJPF; Horn,RV; Rocha-e-Silva,RC; Bezerra,WGA; Gomes-Filho,VJR.
Two groups of domestic pigeons (Columba livia) were experimentally infected orally with doses of 9.5 x10(7) and 9.5 x10(9) CFU/mL (group A and B, respectively) of a Salmonella Enteritidis (SE) strain isolated from chickens. None of the used doses caused mortality of the inoculated birds; however, the pathogen was successfully recovered from the liver and spleen of group B birds on day 7 post-inoculation (dpi). Pathogen shedding, as evaluated through cloacal swabs, occurred in both groups until the 14th day of observation (p <0.05). Among all fecal samples collected from group B (n=4), three different birds shed the pathogen in their feces, out of which two were positive on 3 dpi and one on 7 dpi. The same number of fecal samples was evaluated in group A...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Inoculation; Pigeons; Salmonella Enteritidis.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300007
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Efeito protetor da microbiota cecal congelada e liofilizada sobre a infecção experimental de frangos de corte por Salmonella enterica sorovar Enteritidis Arq. Bras. Med. Vet. Zootec.
Andreatti Filho,R.L.; Crocci,A.J..
Estudaram-se os efeitos do tratamento de frangos de corte com microbiota cecal anaeróbia liofilizada (MCL) e congelada (MCC) sobre a infecção do trato digestivo das aves por Salmonella enterica sorovar Enteritidis. Foi usada microbiota intestinal sem prévia identificação bacteriana. A infecção foi persistente, em ordem, no ceco, inglúvio e duodeno. A infecção também foi autolimitante nos grupos tratados e no controle. Não ocorreu diferença entre o grupo-controle positivo e os tratados com MCL ou MCC. Houve redução da colonização do ceco no período de 12 dias após o desafio nos grupos tratados com MCL e MCC, o que não ocorreu no grupo-controle positivo. Não houve variação entre os tratamentos com MCL e MCC quanto às características pesquisadas. A S....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Frango; Salmonella Enteritidis; Probiótico; Exclusão competitiva; Microbiota congelada; Microbiota liofilizada.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352002000500001
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Effect of evaporated ethyl pyruvate on reducing salmonella enteritidis in raw chicken meat Rev. Bras. Ciênc. Avic.
Cetin,B; Uran,H; Konak,M.
ABSTRACT In this study, the effect of evaporated ethyl pyruvate (EP) was evaluated for the decontamination of Salmonella Enteritidis on chicken leg meat as a safe alternative to antimicrobial agent. Also, total aerobic mesophilic bacteria (TAMB), Enterobacteriaceae, Escherichia coli and yeast-mold counts samples were investigated. Subsequently, the samples were injected with 0, 42, 105 and 420 mg evaporated EP/L air to the paper filter attached to the container cover and stored at +4 °C for 10 days. According to the results, 42 mg EP/L concentration did not cause a significant decrease in Salmonella Enteritidis count (p>0.05). However, it was determined that 105 and 420 mg EP/L treatments reduced the number of Salmonella Enteritidis by more than 1 and 2...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken Meat; Decontamination; Ethyl Pyruvate; Salmonella Enteritidis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200301
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Effects of Glutamine on Digestive Function and Redox Regulation in the Intestines of Broiler Chickens Challenged with Salmonella Enteritidis Rev. Bras. Ciênc. Avic.
Wu,Q; Liu,Z; Li,S; Jiao,C; Wang,Y; Wang,Y.
ABSTRACT The aim was to investigate the effect of glutamine (Gln) on broilers challenged with Salmonella Enteritidis. 240 1-day-old birds were divided into four groups in a completely randomized design, each of which included 6 replicates with 10 birds per replicate. Group I served as the unchallenged, untreated control (CON). All birds in groups II (SCC) - IV were challenged with 2.0 × 104 CFU/mL of S. Enteritidis. Birds in group III and IV were treated with 0.5% (Gln 1) and 1.0% (Gln 2), respectively, of Gln. The results indicated that S. Enteritidis infection led to a decrease in the average body weight at d 7, 14, and 21 (p<0.05). Chickens fed the Gln showed improved average body weights in comparison with the SCC group (p<0.05). At d 4, 7, 14,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glutamine; Average body weight; Antioxidant function; Salmonella Enteritidis; Broiler.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400307
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Effects of Glutamine on the Mucosal Structure and Immune Cells in the Intestines of Broiler Chickens Challenged with Salmonella Enteritidis Rev. Bras. Ciênc. Avic.
Liu,Z; Wu,Q; Jiao,C; Cheng,B; Zhu,D; Ma,Y; Li,Y; Li,W.
ABSTRACT The aim of this study was to investigate the effects of glutamine (Gln) on the intestinal mucosal structure and immune cells of broilers infected with Salmonella Enteritidis. 160 1-d-old commercial Arbor Acres (AA) broilers were randomly selected to receive one of four treatments, each of which had 5 replicates. Each replicate consisted of 8 chicks subjected to a 21-d feeding trial. Group I served as the unchallenged (CON). All birds in groups II (SCC) - IV were challenged with 2.0 × 104 CFU/mL of S. Enteritidis. The birds in groups III and IV were treated with 0.5% and 1.0% Gln. The results showed that S. Enteritidis infection led to a decrease in the relative length and weight, villus height:crypt depth (VH:CD) of the jejunum and ileum, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glutamine; Intestinal villi; Mucosal immunity; Salmonella Enteritidis; Broiler.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000300309
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Ensaios de penetração de Salmonella Enteritidis em ovos de galinha com diferentes qualidades de casca, submetidos ou não a lavagem industrial e a duas temperaturas de armazenagem Arq. Bras. Med. Vet. Zootec.
Pinto,A.T.; Silva,E.N..
Estudou-se o comportamento da Salmonella Enteritidis quando em contato com a superfície de ovos de consumo, classificados de acordo com a qualidade da casca ou com tratamentos (lavados ou não), usando fezes de aves como veículo de contaminação, e armazenados a 8°C e 70% de umidade relativa ou a 30°C e 90% de umidade relativa. A 8°C, o microrganismo permaneceu viável na superfície dos ovos, ao longo do tempo, enquanto a 30°C foi possível identificar a sua inibição e até sua eliminação da superfície. A contaminação do conteúdo de ovos com defeito de casca foi mais frequente quando os ovos foram submetidos a temperaturas inadequadas de armazenagem (30°C).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ovo; Qualidade da casca; Salmonella Enteritidis; Conservação de ovos.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000500024
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Evaluation of Disinfectants Used in Pre-Chilling water Tanks of Poultry Processing Plants Rev. Bras. Ciênc. Avic.
Guastalli,BHL; Batista,DFA; Souza,AIS; Guastalli,EAL; Lopes,PD; Almeida,AM; Prette,N; Barbosa,FO; Stipp,DT; Freitas Neto,OC.
ABSTRACT In poultry processing plants, disinfectants are often added to pre-chilling water tanks to reduce microbial contamination. The present study aimed at evaluating the effect of five disinfectants (acidified sodium chlorite, alkyl dimethyl benzyl ammonium chloride, chlorine dioxide, peracetic acid, and sodium hypochlorite) on the populations of food quality indicator microorganisms and on Salmonella Enteritidis (SE) in the presence and absence of organic matter. The results showed that chlorine dioxide and sodium hypochlorite did not reduce microbial carcass counts. On the other hand, acidified sodium chlorite, alkyl dimethyl benzyl ammonium chloride and peracetic acid reduced total and fecal coliform counts. Peracetic acid reduced the number of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Broiler carcasses; Disinfectant; Indicator microorganisms; Pre-chilling tank; Salmonella Enteritidis.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000200217
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Genomic variants of bacteriophages against Salmonella enterica serovar Enteritidis with potential application in the poultry industry Rev. Bras. Ciênc. Avic.
Robeson,J; Retamales,J; Borie,C.
Salmonella enterica serovar Enteritidis (SE) is a prevalent gastrointestinal pathogen worldwide, threatening both animal and human health. In the latter, disease is associated to the consumption of SE-contaminated products from the poultry industry. The control of SE infection is largely based on the use of antibiotics and vaccines, but the use of lytic bacteriophages is re-emerging as an additional strategy for SE control. In fact, a number of recent reports point to the adequacy of bacteriophage as an efficient prophylactic or therapeutic countermeasure to SE infections. However, less attention has been focused on the basic biology of these bacteriophages. Here we report on three bacteriophages (f18, IF1 and EST2) that share a common viral particle...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteriophages; Biocontrol; Salmonella Enteritidis.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300007
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Hemagglutinating properties of Salmonella enterica serovar Enteritidis isolated from different sources BJM
Mikcha,Jane M.G.; Ferreira,Antonio J. Piantino; Ferreira,Claudete S. Astolfi; Yano,Tomomasa.
Twenty-five strains of Salmonella enterica serovar Enteritidis isolated from different sources were examined for hemagglutinating activity. Bacteria cultured in different media induced hemagglutination of human erythrocytes, but no reaction was observed with erythrocytes from other animal species. The hemagglutinating expression activity was better for cultures on CFA agar at 37ºC than other conditions examined. The hemagglutination was inhibited by D-mannose, D-mannitol, melibiose, D-raffinose, L-rhamnose and sucrose. The absence of cell-surface appendages in electron microscope examinations suggested a nonfimbrial hemagglutinin. The data suggest that Salmonella Enteritidis produces nonfimbrial mannose-sensitive hemagglutinin, specific for human...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Salmonella Enteritidis; Hemagglutinating activity; Mannose-sensitive hemagglutinin; Nonfimbrial hemagglutinin.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822004000100008
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