Mastites em ruminantes no Brasil

Abstract

Resumo: A mastite é uma doença complexa e considerada uma das principais causas de perdas à indústria leiteira mundial. Objetivou-se com esta revisão compilar informações dos últimos dez anos sobre a mastite em ruminantes no Brasil. A prevalência da mastite subclínica chega a 48,64% na espécie bovina, 30,7% na espécie caprina, 31,45% na espécie ovina e 42,2% na espécie bubalina, destacando-se a etiologia por Staphylococcus spp. Os fatores de risco associados à ocorrência de mastite estão relacionados a problemas no saneamento ambiental e ao manejo dos animais. As bactérias isoladas do leite mastítico apresentam maior percentual de resistência a penicilina, ampicilina, amoxicilina e neomicina e a utilização de técnicas moleculares no diagnóstico dos agentes causadores de mastites no país, ainda é escassa o que dificulta a obtenção de um diagnóstico mais rápido, sensível e específico.

Knowledge gaps and research priorities inStaphylococcus aureusmastitis control

“…As a consequence of its contagiousness and capacity to induce long‐lasting chronic infections, S. aureus is among the few major pathogens associated with endemic mastitis all over the world (Abera, Habte, Aragaw, Asmare, & Sheferaw, ; Acosta, da Silva, Medeiros, Pinheiro, & Mota, ; Levison et al., ; Petzer, Karzis, Watermeyer, van der Schans, & van Reenen, ; Piehler, Grimholt, Ovstebo, & Berg, ; Taponen et al., ; Wang et al., ). The prevalence of S. aureus mastitis has been reduced in countries or regions that implement the standard mastitis prevention programme (Neave et al., ).…”

Genetic diversity and antimicrobial resistance in Staphylococcus aureus and coagulase‐negative Staphylococcus isolates from bovine mastitis in Minas Gerais, Brazil

“…Mastitis is considered the main disease affecting dairy cattle herds in the world, being responsible for major economic losses to the dairy sector (Ruegg, ). In Brazil, as well as in several other countries, Staphylococcus aureus and Streptococcus agalactiae are considered the most common agents causing mastitis in cattle (Acosta, Silva, Medeiros, Pinheiro‐Júnior, & Mota, ). These pathogens can colonize the mammary gland of ruminants, where they can survive for long periods causing mild or no clinical symptoms.…”

Rupture of the mammary vein in a Holstein cow with mastitis and udder edema: case report

“…It lives in the udder, upper and lower urogenital tract, and upper respiratory tract of animals, and also on the milker's hands; this bacterium was also isolated in the milk samples and in the serosanguinous fluid collected herein. This microorganism has been frequently identified in mammary quarters as causing mastitis in the immediate postpartum period, especially where correct hygiene practices are not carried out during milking and in highly contaminated environments (Radostits et al, 2007;Saeki et al, 2012;Bandeira et al, 2013;Castelani et al, 2013;Jamali et al, 2014;Acosta et al, 2016). S. aureus is among the most important Staphylococcus species that causes mastitis.…”

“…Bacteria belonging to the genus Staphylococcus are the predominant causes of mastitis in the main milk-producing species in Brazil, and Staphylococcus aureus has a higher prevalence than other species in milk samples from cases of bovine mastitis, both in Brazil and internationally (Saeki et al, 2012;Bandeira et al, 2013;Castelani et al, 2013;Jamali et al, 2014;Acosta et al, 2016). The disease can be hyperacute, although the subclinical and chronic subclinical forms may also present clinical episodes (Quinn et al, 2002;Nader Filho et al, 2007).…”