Dinâmica celular e microbiológica do leite de ovelhas Santa Inês acompanhadas durante a lactação

Guaraná, Eduardo Levi de Sousa; Santos, Rosimeire Cavalcante dos; Campos, Anne Grace Silva Siqueira; Silva, Natália da Silva e; Afonso, José Augusto Bastos; Mendonça, Carla Lopes de

doi:10.1590/s0100-736x2011001000004

Cited by 11 publications

(7 citation statements)

References 25 publications

(22 reference statements)

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“…A incidência anual de mastite clínica observada nos rebanhos leiteiros da Europa varia de 1 a 15%, com média de 5% (Winter 2001. Para a mastite subclínica, por outro lado, a prevalência média estimada nos rebanhos leiteiros europeus varia de 20 a 30% , o que se assemelha às frequências observadas nas ovelhas de corte da raça Santa Inês criadas no Brasil (Coutinho et al 2006, Domingues et al 2006, Guaraná et al 2011 A época de maior ocorrência de mastite observada pelos produtores foi o início da lactação (69,2%). Alguns observavam o problema no início da lactação e também após a separação dos cordeiros para o desmame (17,9%).…”

Section: Resultsunclassified

“…A maior parte dos estudos sobre mastite ovina foi realizada no Nordeste (Coutinho et al 2006, Oliveira 2006, Almeida 2007, Santos et al 2007, Melo et al 2008, Santos 2008, Guaraná et al 2011) onde a raça Santa Inês se originou. O número de trabalhos vem crescendo também na região Sudeste (Domingues et al 2006, Blagitz 2007, Nunes et al 2008, Veríssimo et al 2010.…”

Section: Introductionunclassified

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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

Section: Introductionunclassified

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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“…Gentamicin, antibiotic used in the present study, had sensitivity of 90.6% and 81.2% face to microrganisms isolated at dry-off and puerperium, respectively (Table 5). Other studies with Santa Ines sheep, demonstrated that gentamicin was considered one of the best drugs to eliminate the microrganisms isolated from milk samples (Domingues et al 2006, Coutinho et al 2008a, Guaraná et al 2011. Previous studies reported that the microorganism isolated from Santa Ines sheep with mastitis had lower sensitivity to streptomycin, kanamycin and tetraciclin (Almeida 2007, Guaraná et al 2011.…”

Section: Resultsmentioning

confidence: 98%

“…Other studies with Santa Ines sheep, demonstrated that gentamicin was considered one of the best drugs to eliminate the microrganisms isolated from milk samples (Domingues et al 2006, Coutinho et al 2008a, Guaraná et al 2011. Previous studies reported that the microorganism isolated from Santa Ines sheep with mastitis had lower sensitivity to streptomycin, kanamycin and tetraciclin (Almeida 2007, Guaraná et al 2011. The in vitro effectiveness of the antibiotics to eliminate the etiological mastitis agent in ovine in the present study can be attributed to the sporadic use of this drug in ovine industry, unlike what is observed in dairy cattle.…”

Section: Resultsmentioning

confidence: 99%

Mammary gland health of Santa Inês ewes at the drying and puerperium and evaluation of a dry-off terapy with gentamicin

Pereira

Reway

Félix³

et al. 2018

Pesq. Vet. Bras.

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Mastitis represents an important health problem for Santa Inês breed, causing losses to the producer, due to loss of ewes or the decrease in weight gain of lambs. The aim of this work was to assess the health of the mammary gland of Santa Inês ewes at the drying and puerperium and to investigate the efficacy of a dry-off therapy with gentamicin. In this study, 64 ewes were divided in a control group (GC) and treatment group (GT), and the health of the mammary gland was assessed at the drying and puerperium. The GT ewes received 250mg of gentamicin (Gentocin® DryCow/Schering-Plough, product indicated for use in dairy cows) in each mammary half. For diagnosis, clinical examination, California Mastitis Test, somatic cell count and milk culture was performed. In the GC, of the 45 (70.3%) healthy mammary halves at the drying, 12 developed subclinical mastitis and nine clinical mastitis at the puerperium. In the GT, among 51 (79.7%) healthy mammary halves at the drying, six developed subclinical mastitis and 11 clinical mastitis at the puerperium. No association was observed between treatment and the occurrence of mastitis at puerperium. Of the 19 (29.7%) mammary halves of the GC that presented subclinical mastitis at the drying, three remained with subclinical mastitis and five developed clinical mastitis at the puerperium. In the GT, of the 13 (20.3%) mammary halves that had subclinical mastitis at the drying, four remained with subclinical mastitis and four developed clinical mastitis. No association was observed between treatment and cure or persistence of mastitis at the puerperium. The main microorganisms isolated, at the drying and puerperium, from animals with subclinical or clinical mastitis were Staphylococcus spp., predominantly coagulase negative Staphylococcus (CSN). At the puerperium, 29 cases of clinical mastitis occurred, 19 with isolation, where 10 were CNS and six S. aureus. Mannheimia haemolytica was isolated in one case of subclinical mastitis and other of clinical mastitis. News protocols and different ways of handling at drying and at puerperium must be investigated.

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“…A mastite subclínica, tem uma prevalência média estimada nos rebanhos leiteiros europeus variando de 20 a 30% (BERGONIER; BERTHELOT, 2003), o que se parece com as frequências observadas nas ovelhas de corte da raça Santa Inês criadas no Brasil (COUTINHO et al, 2006;DOMINGUES et al, 2006;GUARANÁ et al, 2011).…”

Section: Mastite Subclínicaunclassified

Avaliação Da Prevalência De Mastite Subclínica Em Ovelhas

Silva¹,

Akashi²,

Tironi³

et al. 2019

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RESUMO A ovinocultura encontra-se em constante crescimento mundialmente. Nessa atividade, a mastite é uma das enfermidades que acometem as ovelhas, gerando desmame de cordeiros leves, ou até mesmo a perda definitiva da função da glândula mamária. Sendo assim, seu diagnóstico deve ser precoce, evitando-se essas perdas na produção. Nesse estudo, foram avaliadas 413 ovelhas, destas 300 se apresentavam lactantes e foram inseridas nas avaliações. Para isso, foram coletados 2mL de amostra de leite de cada glândula mamária e adicionados 2mL de reagente do California Mastitis Test (CMT). Após homogeneização, a reação foi interpretada, considerando-se 5 graus de aglutinação: (-) sem alteração de consistência, (+) presença de gel ou formas espessas de lodo, mas sem mobilidade, (++) forma espessa de gel grumoso, com movimentação em direção ao centro, (+++) formas de gel distintas com adesão à parte inferior da raquete para CMT e (MC: mastite clínica) consistência grumosa, mesmo sem adição do reagente. O objetivo desse estudo foi realizar um levantamento da prevalência de mastite subclínica em ovelhas na região metropolitana de Umuarama-PR. Das propriedades avaliadas, 90% continha animais positivos. Dentre os animais avaliados, 55,6% apresentaramse positivos no teste, com uma variação de 0 a 90,4% entre as propriedades. Quanto à mastite clínica, houve incidência de 2 a 34% de acometimento dos animais entre as propriedades. Sendo assim, conclui-se que a mastite clínica e subclínica são enfermidades de grande acometimento dos animais presentes nas propriedades de criação dessa espécie.

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Dinâmica celular e microbiológica do leite de ovelhas Santa Inês acompanhadas durante a lactação

Cited by 11 publications

References 25 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

Mammary gland health of Santa Inês ewes at the drying and puerperium and evaluation of a dry-off terapy with gentamicin

Avaliação Da Prevalência De Mastite Subclínica Em Ovelhas

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