Presença de Escherichia coli em fígados de frangos provenientes de matadouros avícolas

Silva, Isabella de Matos Mendes da; Baliza, M. D.; Pereira, Marcos; Rebouças, Larissa Tannus; Rocha, Édila Verônica da Silva; Santos, Vilmara Almeida dos; Silva, Ricardo Mendes da; Evêncio-Neto, Joaquim

doi:10.1590/s1519-99402012000300009

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…However, the lack of macroscopic finds failed to guarantee the organ´s harmlessness. In fact, Silva et al (2012) isolated Escherichia coli in 60% (n=30) of samples of broilers´ livers without any macroscopic alterations, in the Recôncavo da Bahia region.…”

Section: Resultsmentioning

confidence: 94%

“…Poultry cellulitis is mainly caused by inadequate management and nutrition and through pathogens, such as Escherichia coli, which invade the organism from a continuous solution in the skin (Vieira et al 2006). Research on virulence genes in E. coli isolates identifies pathogenic strains in samples of several types of food (Barbosa et al, 2019;Silva et al, 2012) and is an important strategy to diagnose pathogenic strains.…”

Section: Introductionmentioning

confidence: 99%

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Co-relationship between Escherichia coli in broiler cellulitis and liver lesions

Silva

Jesus³

et al. 2021

Braz. J. Biol.

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Pathogenic strains of Escherichia coli may invade the subcutaneous tissue of poultry and cause cellulitis, whilst the pathogen may also cause lesions in internal organs such as the liver. Current paper co-relates Escherichia coli and virulence genes characteristic of Avian Pathogenic Escherichia coli (APEC) in broilers´ cellulitis and liver lesions. One hundred carcasses were retrieved from the production chain in an avian abattoir in the state of Bahia, Brazil, between August 2013 and January 2014, due to detection of cellulitis lesions. Cellulitis and liver samples were retrieved aseptically to quantify E. coli by Petrifilm™ count fast method (3M Company) (AOAC 998.8). Virulent genes iss and iutA were removed from E. coli isolates by Polymerase Chain Reaction (PCR). Escherichia coli was isolated from 82.0% of broilers removed from the production chain and the bacterium was concomitantly detected in cellulitis and liver lesions in 40.0% of broilers. E. coli counts ranged between 1.00 and 4.73 log CFU/g in liver lesions and between 2.00 and 9.00 log UFC/g in cellulitis lesions. Virulent genes iutA and iss were detected in 97.56% and 89.02% of E. coli isolates, respectively. Genotype analysis demonstrated the concomitant amplification of genes iutA and iss in 60.0% (n=40) of samples of cellulitis and liver lesions in which the simultaneous isolation of E. coli occurred. There was a positive and significant co-relationship (r=0.22; p<0.05) between the variables occurrence of E. coli isolated from liver samples and the occurrence of E. coli isolated from cellulitis lesions. There were also positive and significant co-relationships between populations of E. coli from liver isolates and cellulitis lesions (r=0.46; p<0.05) when E. coli isolated in the liver and in cellulitis lesions was detected. Since results showed a relationship between E. coli in cellulitis and liver lesions and possible systemic infection, the occurrence of cellulitis lesions as a criterion for total discarding of carcass may be suggested.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Co-relationship between Escherichia coli in broiler cellulitis and liver lesions

Silva

Jesus³

et al. 2021

Braz. J. Biol.

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“…In these chickens, hepatomegaly was a frequent finding, as well as hepatic color change, ranging from marked dark-red or dark-green to coppery. Some macroscopic findings are nonspecific and are also described in cases of Escherichia coli infection, such as hepatomegaly with multiple millimetersized foci of necrosis (Barcelos et al 2006, Silva et al 2012, Casagrande et al 2017. However, the association of liver lesions with lesions in other organs may be indicative of infection by Salmonella spp.…”

Section: Discussionmentioning

confidence: 99%

Hepatic changes in Gallus gallus domesticus in Brazil

et al. 2022

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The occurrence and the frequency of hepatic changes in chickens, including broiler (BC), layer (LC) and backyard chickens (BYC) were investigated. The retrospective and prospective study (2006-2021) was conducted with a total of 300 cases of liver disorders. Industrial poultry (BC and LC) were frequently affected (88%) and noninfectious changes were the most diagnosed (69%). Considering etiology or conditions, the hepatic changes were classified as follows: degenerative changes (42%), bacterial (28%), metabolic (15%), toxic (8%), viral (3%), neoplastic (2%), protozoal diseases (1.5%) and circulatory disorders (0.5%). Regarding the type of bird, degenerative, toxic changes and viral hepatitis were more frequent in BC. Circulatory and metabolic disorders, as well as bacterial hepatitis, were more frequently diagnosed in LC. Neoplastic and protozoal hepatitis occurred more frequently in BYC. The macroscopic examination in association with histopathology enabled the diagnosis of the hepatic changes in 59% of the cases. Considering bacterial hepatitis in commercial poultry, the etiological diagnosis is highly important, in view of the risk for public health, despite the obvious importance due to the productivity losses and condemnation at processing.

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“…In Brazil, studies were developed to confirm the contamination of broiler meat by E. coli (SILVA et al, 2012), total coliforms (MENEZES et al, 2018), and Salmonella sp. responsible for great outbreaks of foodborne diseases (KOTTWITZ et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Detection of enterobacteria in broiler carcasses for sale in the market

Santos

Melo

Rodrigues

et al. 2020

AVB

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, to which three groups of broiler carcasses produced in the city of Teresina were analyzed: without refrigeration, labeling and inspection (n=8); originated from local production, refrigerated, labeled, and inspected (n=8); and originated from other states, frozen, packed, labeled, and inspected (n=8). The collected samples were analyzed regarding the determination of the Most Probable Number (NMP) of total and thermotolerant coliforms, Escherichia coli, and detection of Salmonella spp., besides the measurement of the temperature of the carcasses. The logarithmic means of thermotolerant and total coliforms in the broiler carcasses varied from 0.70 to 4.66 NMP/g and from 0.73 to 4.66 NMP/g, respectively. The bacteria E. coli and Salmonella spp. were also detected in samples with refrigeration and inspection (25 % and 12.5 %, respectively). As for the marketing temperature, only the broiler carcass samples which were chilled and frozen were within the standard of the Brazilian legislation. The results observed in this study indicate the need for improvement in the processing, handling, and storage of the broiler meat marketed in Teresina, PI.

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Presença de Escherichia coli em fígados de frangos provenientes de matadouros avícolas

Cited by 8 publications

References 8 publications

Co-relationship between Escherichia coli in broiler cellulitis and liver lesions

Co-relationship between Escherichia coli in broiler cellulitis and liver lesions

Hepatic changes in Gallus gallus domesticus in Brazil

Detection of enterobacteria in broiler carcasses for sale in the market

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