Etiologia e perfil de sensibilidade de bactérias isoladas de ovelhas com mastite na região nordeste do estado do Pará

Silva, Natália da Silva e; Silveira, José Alcides Sarmento da; Pinheiro, Cleyton Prado; Sousa, Melina Garcia Saraiva de; Oliveira, Carlos Magno Chaves; Mendonça, Carla Lopes de; Duarte, Marcos Dutra; Barbosa, José Diomedes

doi:10.1590/s0100-736x2010001200007

Cited by 6 publications

(2 citation statements)

References 21 publications

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“…Veríssimo et al (2010) observaram frequência de 24,5% de mastite clínica em um rebanho no estado de São Paulo. Silva et al (2010), no Pará, encontraram frequência de apenas 5,9% de mastite clínica. A incidência anual de mastite clínica observada nos rebanhos leiteiros da Europa varia de 1 a 15%, com média de 5% (Winter 2001.…”

Section: Resultsunclassified

Fatores de risco, etiologia e aspectos clínicos da mastite em ovelhas de corte no Paraná

Pereira

Stotzer²,

Pretto‐Giordano³

et al. 2014

Pesq. Vet. Bras.

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Pesq. Vet. Bras. 34(1):1-10, janeiro 2014 1 RESUMO.-A mastite em ovelhas da raça Santa Inês apresenta-se como um problema de grande proporção e gravidade e é dificilmente tratada com sucesso. O objetivo deste estudo foi caracterizar aspectos clínicos, epidemiológicos e etiológicos da mastite clínica em ovelhas de corte criadas no norte do Paraná. O presente estudo foi realizado entre os meses Mastits is infrequent in meat ewes. However Santa Ines ewes have a high incidence of this disease and it is severe and difficult to treat. The goal of this study was to characterize clinical, epidemiological and etiological aspects of clinical mastitis in meat ewes reared in the north of Parana, Brazil. Fifith four farms were visited from October 2009 to September 2010. The surveyed data included frequency, breeds of sheep affected, lamb mortality rates, main clinical signs, attempts and outcome of treatment, method and period of weaning and management features. Seventy ewes with clinical mastitis were fully examinated and samples of mammary secretion were asseptically taken for bacteriological culture. Mastitis was identified in 39 farms (72.3%) as a relevant problem (mean frequency was 6,74%). Chronic and acute mastitis were observed in 69% and 31% of the examinated ewes, respectively. In both cases, phlegmonous mastitis was the most prevalent form (65.5%). Coagulase negative Staphylococccus (CNS) was the main isolated microorganism (54.5%), followed by Staphylococcus aureus and Arcanobacterium pyogenes (11.5%, each one). Mannheimia haemolytica was found in two cases. The risk factors for clinical mastitis were intensive management system and Santa Ines breed. Weaning after 120 days of lactation and isolation of affected ewes were associated with lower frequency of mastitis. Preventive measures recommended are daily cleaning of facilities and delayed weaning, mainly in Santa Ines flocks.

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Section: Resultsunclassified

Fatores de risco, etiologia e aspectos clínicos da mastite em ovelhas de corte no Paraná

Pereira

Stotzer²,

Pretto‐Giordano³

et al. 2014

Pesq. Vet. Bras.

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“…Rangel and Marin (2009) found that E. coli isolated from milk samples from cows with mastitis presented 92.2% resistance to the antibiotic tetracycline and 90.5% to streptomycin. Silva et al (2010) carried out studies on the etiology of mastitis in sheep in the north region of Brazil, in addition to establishing the sensitivity profile of the bacteria isolated to antimicrobials. The bacteria isolated were Staphylococcus spp.…”

Section: Journal Of Agricultural Studiesmentioning

confidence: 99%

Microbiological Evaluation of Milk Quality and Antibiogram in Dairy Cows Managed on Pasture

Ítavo¹,

Ítavo²,

Dias³

et al. 2020

JAS

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Mastitis is a disease in dairy cattle that damage the milk chain. It was aimed identify the major causative agents of bovine mastitis in small dairy farms by producing an antibiogram and analysis of milk quality. Methods: During the summer, 280 dairy cows were examined on a farm located in Camapuã, MS, Brazil. The farm had a concrete milking facility and used cleaning and disinfection of the udder before and after milking to control mastitis. For assess microbial resistance, two samples of milk per cow were collected biweekly between January and March. The antibiotics sulfazotrim (25 μg), penicillin (10 μg), streptomycin (10 μg), vancomycin (30 μg), chloramphenicol (30 μg), tetracycline (30 μg), amoxicillin (10 μg), and gentamycin (10 μg) were used. Results: A total of 17.14% of the animals were positive for the California Mastitis Test (CMT). The identification of the pathogens revealed that Staphylococcus aureus accounted for 41.65% of the isolated organisms and Escherichia coli for 37.5%. Our results showed only sulfazotrim and chloramphenicol had effective results for both Gram-negative and Gram-positive bacteria. The isolated strains presented high resistance to the other tested antibiotics. Conclusions: sulfazotrim (25 μg) and chloramphenicol (30 μg) can be used to disinfect the udder of dairy cows.

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Subclinical mastitis in Lacaune sheep: Causative agents, impacts on milk production, milk quality , oxidative profiles and treatment efficacy of ceftiofur

Alba

Rosa

Hanauer

et al. 2019

Microbial Pathogenesis

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Etiologia e perfil de sensibilidade de bactérias isoladas de ovelhas com mastite na região nordeste do estado do Pará

Cited by 6 publications

References 21 publications

Fatores de risco, etiologia e aspectos clínicos da mastite em ovelhas de corte no Paraná

Fatores de risco, etiologia e aspectos clínicos da mastite em ovelhas de corte no Paraná

Microbiological Evaluation of Milk Quality and Antibiogram in Dairy Cows Managed on Pasture

Subclinical mastitis in Lacaune sheep: Causative agents, impacts on milk production, milk quality , oxidative profiles and treatment efficacy of ceftiofur

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