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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
23/05/2018 |
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Data da última atualização: |
23/05/2018 |
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Autoria: |
GAETA, N. C.; RIBEIRO, B. L. M.; ALEMÁN, M. A. R.; YOSHIHARA, E.; NASSAR, A. F. C.; MARQUES, L. M.; TIMENETSKY, J.; GREGORY, L. |
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Afiliação: |
Natália C. Gaeta; Bruno L. M. Ribeiro; Mario A. R. Alemán; Eidi Yoshihara; Alessandra F. C. Nassar; Lucas M. Marques; Jorge Timenetsky; Lilian Gregory. |
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Título: |
Bacterial pathogens of the lower respiratory tract of calves from Brazilian rural settlement herds and their association with clinical signs of bovine respiratory disease. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 3, p. 374-381, março 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Patógenos bacterianos do trato respiratório inferior de bezerros criados em rebanhos de assentamentos brasileiros e sua associação com os sinais clínicos da doença respiratória dos bovinos. |
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Conteúdo: |
Bovine respiratory disease (BRD) is considered the major cause of economic losses in dairy and beef cattle production. The study aimed to detect the most important bacteria related to respiratory disease in tracheobronchial fluid samples of healthy and dairy calves with clinical signs of BRD in Brazilian rural settlements. Hundred and forty-one mongrel dairy calves were randomly selected from 42 family farm dairy herds from Brazilian settlements. Physical examination was performed and calves were classified as healthy (n=100) and BRD (n=41). Tracheobronchial fluid samples were collected. Isolation and molecular detection of Mycoplasma dispar, M. bovis and M. mycoides subsp. mycoides SC besides isolation of other aerobic bacteria were performed. Abnormal lung sounds (crackle/snoring/whistle), mucopurulent/purulent nasal discharge, body temperature >39.5°C and respiratory rate >40 breaths/min were higher in BRD calves compared to healthy calves (P<0.05). Bacillus sp., Staphylococcus intermedius and non-fermentative Gram-negative were the most prevalent bacteria isolated. Non-identified species from Enterobacteriaceae family was higher in BRD calves compared to healthy calves (P<0.05). Mollicutes were isolated in 7.4% of samples and only M. dispar was detected. Mollicutes was associated with purulent/mucopurulent nasal discharge (P=0.017). Pantoea agglomerans was associated to tachypnea (P=0.020), and Streptococcus spp. was associated with hyperthermia. Statistical tendencies were observed to M. dispar and tachypnea (P=0.066), and P. agglomerans and tachycardia (P=0.066). The obtained results describe the microorganisms found in tracheobronchial fluid of calves with BRD in some herds of Brazilian family farming and their relation to clinical signs of BRD. INDEX TERMS: Bacterial pathogens, respiratory tract, calves, Brazil, rural settlement, bovine respiratory disease, BRD, Mycoplasma spp., aerobic bacteria, cattle, clinics. MenosBovine respiratory disease (BRD) is considered the major cause of economic losses in dairy and beef cattle production. The study aimed to detect the most important bacteria related to respiratory disease in tracheobronchial fluid samples of healthy and dairy calves with clinical signs of BRD in Brazilian rural settlements. Hundred and forty-one mongrel dairy calves were randomly selected from 42 family farm dairy herds from Brazilian settlements. Physical examination was performed and calves were classified as healthy (n=100) and BRD (n=41). Tracheobronchial fluid samples were collected. Isolation and molecular detection of Mycoplasma dispar, M. bovis and M. mycoides subsp. mycoides SC besides isolation of other aerobic bacteria were performed. Abnormal lung sounds (crackle/snoring/whistle), mucopurulent/purulent nasal discharge, body temperature >39.5°C and respiratory rate >40 breaths/min were higher in BRD calves compared to healthy calves (P<0.05). Bacillus sp., Staphylococcus intermedius and non-fermentative Gram-negative were the most prevalent bacteria isolated. Non-identified species from Enterobacteriaceae family was higher in BRD calves compared to healthy calves (P<0.05). Mollicutes were isolated in 7.4% of samples and only M. dispar was detected. Mollicutes was associated with purulent/mucopurulent nasal discharge (P=0.017). Pantoea agglomerans was associated to tachypnea (P=0.020), and Streptococcus spp. was associated with hyperthermia. Statistical tendencies w... Mostrar Tudo |
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Palavras-Chave: |
Bacterial pathogens; Doença respiratória dos bovinos; Patógeno bacteriano; Rural settlement; Trato respiratório inferior. |
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Thesagro: |
Assentamento; Bezerro; Bovino. |
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Thesaurus Nal: |
Bovine respiratory disease; Brazil; Calves; Cattle; Mycoplasma; Respiratory system. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177511/1/Bacterial-pathogens-of-the-lower-respiratory.pdf
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Marc: |
LEADER 03374naa a2200385 a 4500
001 2091846
005 2018-05-23
008 2018 bl uuuu u00u1 u #d
100 1 $aGAETA, N. C.
245 $aBacterial pathogens of the lower respiratory tract of calves from Brazilian rural settlement herds and their association with clinical signs of bovine respiratory disease.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Patógenos bacterianos do trato respiratório inferior de bezerros criados em rebanhos de assentamentos brasileiros e sua associação com os sinais clínicos da doença respiratória dos bovinos.
520 $aBovine respiratory disease (BRD) is considered the major cause of economic losses in dairy and beef cattle production. The study aimed to detect the most important bacteria related to respiratory disease in tracheobronchial fluid samples of healthy and dairy calves with clinical signs of BRD in Brazilian rural settlements. Hundred and forty-one mongrel dairy calves were randomly selected from 42 family farm dairy herds from Brazilian settlements. Physical examination was performed and calves were classified as healthy (n=100) and BRD (n=41). Tracheobronchial fluid samples were collected. Isolation and molecular detection of Mycoplasma dispar, M. bovis and M. mycoides subsp. mycoides SC besides isolation of other aerobic bacteria were performed. Abnormal lung sounds (crackle/snoring/whistle), mucopurulent/purulent nasal discharge, body temperature >39.5°C and respiratory rate >40 breaths/min were higher in BRD calves compared to healthy calves (P<0.05). Bacillus sp., Staphylococcus intermedius and non-fermentative Gram-negative were the most prevalent bacteria isolated. Non-identified species from Enterobacteriaceae family was higher in BRD calves compared to healthy calves (P<0.05). Mollicutes were isolated in 7.4% of samples and only M. dispar was detected. Mollicutes was associated with purulent/mucopurulent nasal discharge (P=0.017). Pantoea agglomerans was associated to tachypnea (P=0.020), and Streptococcus spp. was associated with hyperthermia. Statistical tendencies were observed to M. dispar and tachypnea (P=0.066), and P. agglomerans and tachycardia (P=0.066). The obtained results describe the microorganisms found in tracheobronchial fluid of calves with BRD in some herds of Brazilian family farming and their relation to clinical signs of BRD. INDEX TERMS: Bacterial pathogens, respiratory tract, calves, Brazil, rural settlement, bovine respiratory disease, BRD, Mycoplasma spp., aerobic bacteria, cattle, clinics.
650 $aBovine respiratory disease
650 $aBrazil
650 $aCalves
650 $aCattle
650 $aMycoplasma
650 $aRespiratory system
650 $aAssentamento
650 $aBezerro
650 $aBovino
653 $aBacterial pathogens
653 $aDoença respiratória dos bovinos
653 $aPatógeno bacteriano
653 $aRural settlement
653 $aTrato respiratório inferior
700 1 $aRIBEIRO, B. L. M.
700 1 $aALEMÁN, M. A. R.
700 1 $aYOSHIHARA, E.
700 1 $aNASSAR, A. F. C.
700 1 $aMARQUES, L. M.
700 1 $aTIMENETSKY, J.
700 1 $aGREGORY, L.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 38, n. 3, p. 374-381, março 2018
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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| Registros recuperados : 7 | |
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