Colibacillosis

Nolan, Lisa K.; Barnes, H. John; Vaillancourt, Jean‐Pierre; Abdul-Aziz, Tahseen; Logue, Catherine M.

doi:10.1002/9781119421481.ch18

Cited by 130 publications

(159 citation statements)

References 549 publications

Supporting

Mentioning

151

Contrasting

Unclassified

Order By: Relevance

“…E coli osteomyelitis could be a sequel to colisepticaemia (Nolan and others 2013) but in this submitted case, no lesions of polyserositis were observed in birds with nervous signs and cranial osteomyelitis. It is speculated that the bacteria infected the cranial bones by way of the ear canal, through contaminated dust.…”

mentioning

confidence: 57%

“…COLIBACILLOSIS is considered one of the leading causes of economic loss in the poultry industry worldwide (Nolan and others 2013). Escherichia coli are normal inhabitants of the intestine of poultry with certain serotypes, namely O1, O2, O18, O35 and O78, most frequently associated with diseases (Nolan and others 2013).…”

mentioning

confidence: 99%

“…Escherichia coli are normal inhabitants of the intestine of poultry with certain serotypes, namely O1, O2, O18, O35 and O78, most frequently associated with diseases (Nolan and others 2013). Even if death is the usual outcome of colisepticaemia, some birds may completely recover with residual sequelae in different sites, including bones (Nolan and others 2013). …”

mentioning

confidence: 99%

See 2 more Smart Citations

Cranial osteomyelitis due to E coli infection in commercial layers

Giovanardi¹

2014

Veterinary Record

View full text Add to dashboard Cite

mentioning

confidence: 57%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Cranial osteomyelitis due to E coli infection in commercial layers

Giovanardi¹

2014

Veterinary Record

View full text Add to dashboard Cite

“…Clinical disease has been found most often in chickens, turkeys and ducks. Natural infection of quail, pheasants, pigeons, guinea fowl, waterfowl, ostriches and emus has been reported (Petersen et al, 2006;Nolan et al, 2013). E. coli is part of the normal intestinal flora of birds; however, little is known about the carriage of potentially virulent types.…”

Section: Escherichia Colimentioning

confidence: 99%

Risk to public and/or animal health of the treatment of dead‐in‐shell chicks (Category 2 material) to be used as raw material for the production of biogas or compost with Category 3 approved method

2015

EFS2

View full text Add to dashboard Cite

In 2011, EFSA assessed the risk posed by the possible use of dead‐in‐shell chicks for the production of processed pet food. In 2014, the European Commission asked for an update on the risk posed by the same material but as raw material for the production of biogas and compost according to standard transformation parameters normally used for Category 3 material. According to current European Union legislation, the following processing method was considered: maximum particle size before entering the processing unit: 12 mm; minimum temperature in all material in the unit: 70°C; and minimum time in the unit without interruption: 60 minutes. A list of pathogens potentially present in the material to be treated was compiled and available literature data were used to assess the ability of the processing methods to inactivate the most resistant pathogens identified. Spores of Clostridium botulinum were identified as the most resistant hazard potentially present in the material to be processed. Circovirus and parvovirus and Enterococcus faecium were considered the most heat‐resistant viruses and non‐sporulating bacterium, respectively. Moreover, depending on storage conditions, the formation of bacterial toxins is possible. The processing methods considered were therefore assessed for their ability to inactivate those hazards. The probability of survival of pathogens related to the use of dead‐in‐shell chicks subjected to the treatment process was considered to be extremely low for the heat‐sensitive pathogens that could be present in the material, which include bacteria such as Salmonella and avian influenza virus. However, this treatment is unable to sufficiently inactivate other relevant hazards (e.g. bacterial spores, thermoresistant viruses and certain bacterial toxins).

show abstract

“…A Escherichia coli patogênica para as aves (APEC) está dentro do grupo das E. coli patogênicas extra-intestinais (ExPEC), sendo responsáveis por quadros de síndrome da cabeça inchada, coligranuloma, onfalite e dermatite necró-tica, também conhecida como celulite aviária (Nolan et al 2013. Segundo dados do Ministé-rio da Agricultura Pecuária e Abastecimento (MAPA 2015), em 2014 foi estimado que aproximadamente 0,6% das condenações totais e 8% das condenações parciais de carcaças de frango foram em decorrência desta enfermidade.…”

Section: Introductionunclassified

Susceptibilidade de duas linhagens comerciais de frango de corte no desenvolvimento de dermatite necrótica e possível relação dos genes iss e iutA de Escherichia coli com a reprodução experimental da doença

et al. 2017

View full text Add to dashboard Cite

RESUMO: Celulite aviária é uma enfermidade de grande importância para a avicultura mundial, sendo relacionada principalmente à Escherichia coli (E. coli). Neste estudo foi comparada a susceptibilidade de duas linhagens de aves no desenvolvimento da celulite diante do desafio com diferentes concentrações de E. coli. Além disso, foi avaliada a relação dos genes iss e iutA com a patogenicidade de amostras de E. coli de diferentes origens (fecal/casos clínicos) em pintinhos e com a reprodução experimental da doença em aves de 35 dias de idade. Através da inoculação de frangos de corte (Cobb/Ross) com diferentes níveis de desafio (105 a 108 UFC/mL) de E. coli, não foram observadas diferenças significativas entre as linhagens quanto à sensibilidade à dermatite necrótica para a mesma dosagem (p≤0,05). A detecção dos genes iss e iutA demonstrou que estes estiveram presentes somente nas amostras provenientes de casos clínicos. Da mesma forma, estes isolados foram considerados de alta patogenicidade para pintinhos (>80% letalidade), levando a formação de áreas de lesão mais extensas (≥3cm2) em aves de 35 dias, quando comparado às amostras de origem fecal (p≤0,05). Ainda, as diferenças com relação ao tamanho de lesão foram constatadas também entre os isolados de mesma origem (p≤0,05). Desta forma, a linhagem não pode ser considerada um fator primordial para o desenvolvimento de dermatite necrótica em frangos. Ainda, sugere-se que os genes iss e iutA, quando presentes em conjunto ou isoladamente, poderiam ser considerados marcadores de virulência em cepas de E. coli causadoras de celulite aviária.

show abstract

Colibacillosis

Cited by 130 publications

References 549 publications

Cranial osteomyelitis due to E coli infection in commercial layers

Cranial osteomyelitis due to E coli infection in commercial layers

Risk to public and/or animal health of the treatment of dead‐in‐shell chicks (Category 2 material) to be used as raw material for the production of biogas or compost with Category 3 approved method

Susceptibilidade de duas linhagens comerciais de frango de corte no desenvolvimento de dermatite necrótica e possível relação dos genes iss e iutA de Escherichia coli com a reprodução experimental da doença

Contact Info

Product

Resources

About