Prejuízos Causados Pela Mastite Em Ovelhas Santa Inês

Verı́ssimo, Cecı́lia José; Zafalon, L. F.; Otsuk, Ivani Pozar; Nassar, Alessandra Figueiredo de Castro

doi:10.1590/1808-1657v77p5832010

Cited by 6 publications

(1 citation statement)

References 21 publications

(19 reference statements)

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“…The order of Table 2 is used to present the findings per country. Intramammary infections in Santa Ines ewes were investigated in several studies [9][10][11][12][13][14][15][16][17][18][19][20][21]. Both Santa Ines and Morada Nova breed ewes were researched in four other articles [22][23][24][25], while Santa Ines and Bergamacia were researched in one [26].…”

Section: Relevant Findings Of the Studies Per Countrymentioning

confidence: 99%

Coagulase-Negative Staphylococci as an Etiologic Agent of Ovine Mastitis, with a Focus on Subclinical Forms

Lysitsas,

Spyrou,

Billinis

et al. 2023

Antibiotics

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The objective of this review is to investigate the distribution and the characteristics of coagulase-negative Staphylococci (CoNS) implicated in ovine mastitis, and especially in subclinical cases, in order to provide a global perspective of the current research data and analyze specific critical aspects of the issue. PRISMA guidelines were implemented in the search of the last 20 years of the related literature in two databases. In total, 139 studies were included in this review. Relevant data were tracked down, assembled, and compared. Regarding the geographical distribution, most studies originated from Europe (68), followed by South America (33). Lacaune was the most examined breed, while S. epidermidis was the predominantly identified species, representing approximately 39% of the obtained isolates. Antibiotic resistance in the relevant bacteria was documented mostly for Penicillin (32.8%) and Amoxicillin (32.1%), while biofilm- and toxin-associated genes were encountered in variable rates because significant inequalities were observed between different articles. Significantly higher rates of antimicrobial resistance were detected in Asia and South America compared to Europe. Finally, the diagnostic procedures carried out in the respective studies were evaluated. Conventional culture and biochemical tests were mostly performed for simple strain identification; therefore, further molecular investigation of isolates should be pursued in future studies, as this will provide important data regarding specific aspects of the implication of CoNS in ovine mastitis.

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Section: Relevant Findings Of the Studies Per Countrymentioning

confidence: 99%

Coagulase-Negative Staphylococci as an Etiologic Agent of Ovine Mastitis, with a Focus on Subclinical Forms

Lysitsas,

Spyrou,

Billinis

et al. 2023

Antibiotics

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Relationship between subclinical mastitis and reproduction in Lacaune sheep

Dias

Costa²,

Leite³

et al. 2022

Small Ruminant Research

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Persistência De Staphylococcus Coagulase-Negativos Em Glândulas Mamárias De Ovelhas Com Mastite Subclínica Após O Tratamento Antimicrobiano À Secagem

et al. 2017

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ResumoStaphylococcus coagulase-negativos (SCN) são os principais micro-organismos responsáveis pela mastite ovina e o tratamento ao final da lactação pode ser usado como método de controle contra a doença. Porém, o longo período seco apresentado pelas ovelhas em alguns sistemas de criação pode prejudicar os efeitos positivos do tratamento antimicrobiano. Os objetivos deste trabalho foram identificar as principais espécies de SCN na etiologia da mastite ovina antes e após o tratamento ao final da lactação das ovelhas, bem como investigar a persistência das espécies mais prevalentes na glândula mamária na lactação seguinte. Sessenta ovelhas foram divididas em dois grupos experimentais, um deles formado por animais sem tratamento antimicrobiano, enquanto o outro era composto por ovelhas cujas metades mamárias foram tratadas com cloxacilina-benzatina por via intramamária. As amostras de leite foram obtidas antes da secagem e aos 15 e 30 dias após o parto da lactação seguinte. As espécies prevalentes foram S. warneri, S. simulans e S. epidermidis. Clones das três espécies de maior ocorrência foram identificados antes e depois do tratamento, ou seja, mesmo com o extenso período seco entre as duas lactações consecutivas, os micro-organismos ainda foram identificados no interior da glândula mamária. Palavra-chave: bacteriologia; glândula mamária; leite ovino; métodos de controle da mastite. AbstractCoagulase-negative Staphylococci (CNS) are the main microorganisms responsible for mastitis in sheep and the treatment in the end of lactation can be used as a control method against disease. However, the long dry period presented by ewes in some breeding systems may impair the positive effects of antimicrobial treatment. The aims of this study were to identify the main CNS species in the etiology of ovine mastitis before and after treatment at dry-off of the ewes, as well as investigate the persistence of the most prevalent species in the mammary gland at the next lactation. Sixty sheep

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Prejuízos Causados Pela Mastite Em Ovelhas Santa Inês

Cited by 6 publications

References 21 publications

Coagulase-Negative Staphylococci as an Etiologic Agent of Ovine Mastitis, with a Focus on Subclinical Forms

Coagulase-Negative Staphylococci as an Etiologic Agent of Ovine Mastitis, with a Focus on Subclinical Forms

Relationship between subclinical mastitis and reproduction in Lacaune sheep

Persistência De Staphylococcus Coagulase-Negativos Em Glândulas Mamárias De Ovelhas Com Mastite Subclínica Após O Tratamento Antimicrobiano À Secagem

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