Tratamento de mastite subclínica utilizando Terapia Fotodinâmica (PDT). / Treatment of subclinical mastitis through the Photodynamic Therapy (PDT).

AUTOR(ES)

Lívia Helena Moreira da Silva Melo

DATA DE PUBLICAÇÃO

2009

RESUMO

Experiments were carried out to adapt the technical photodynamic therapy (PDT) to the subclinical mastitis treatment in bovine. Two LEDs equipments were tested with manufactured acrylic fibers to penetration in the teats. Different energy densities were tested to development the methodology. The photodynamic therapy using low energy density was efficient to treat subclinical mastitis, it can be seen the reduction of mammary infection. The constructions the acrylic fibers to LEDs equipments were efficient, where it was possible to reach all interior of the mammary treated. The toluidine blue at 2,5% was efficient to light dispersal and in microbial activity. The energy densities (ED) used was efficient to the principal microbial agents of subclinical mastitis found in the present work. Staphylococcus coagulase positive was removed with ED 25J/cm2, Staphylococus coagulase negative were removed with ED 75J/cm2, Bacillus sp was removed with ED 100J/cm2, Streptococcus dysgalactiae bacterial total count was reduced when ED 200J/cm2 was used.

ASSUNTO(S)

medicina veterinaria toluidine blue mammary gland photosensitizers histologia. azul de toluidina laser histology. glândula mamária fotossensibilizante

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