Avaliação da atividade antimicrobiana da própolis verde frente a Staphylococcus spp isolados de mastite caprina

Abstract

The mastitis is the inflammatory process of infectious origin or not, that reaches the different structures of the mammary gland. It is characterized by alterations physical-chemistries and bacteriological of the milk and irreparable lesions in the mammary fabric. In goats explored for the production of milk, the mastitis is a serious problem, so much for increasing the costs of the production as for the risks to the public health. It was aimed at to evaluate clinicamente the animals, with relationship to the presence or not of mastites; To isolate and to identify the microorganisms found in the milk of the appraised animals; to determine the susceptibilitie of the isolated front to different antibiotics used in the mastitis treatment; to evaluate the antimicrobial activity of the propolis green in vitro; to determine the concentration minimum inibitory (CMI) of the green propolis; to evaluate the bactericidal effect and bacteriostatic of the green propolis. As experimental unit was established the use of the goat mammary half, for they be independent anatomicaly could present different infections. Initially 90goats were selected in nursing, presenting clinical mastite or subclinical, constituting a lot of 180 (hundred and eighty) affected mammary half for the disease. Samples of goat milk of some located properties were collected in the districts of Arcoverde, Brejo da Madre de Deus, Garanhuns, Jaboatão do Guararapes, Paudalho, Olinda, Pedra and São Lourenço, State of Pernanbuco; identified the microorganisms, isolated the colonies of Staphylococcus spp, the susceptibilitie was evaluated from the isolated front to different antibiotics used in the mastitis treatment (cefalotyne 30μg, gentamicyne 10μg, penicillyne G 10UI, sulfazotrim 25μg, tetraciclyne 30μg, neomicyne 30 μg, nitrofurantoyne 300 μg, ampicilyne 10μg, amoxicilyne 10μg, estreptomicyne 10μg, kanamicyne 30μg, lincomicyne 2μg and clorafenicol 30μg)and to the etanolics fractions and aqueous of the extracts of green propolis given in by the laboratory Necta-Farmacêutica®, for the diffusion methodology in disk.They were also certain the concentration minimum inibitory - CIM and bactericidal effect and bacteriostatic. The presence of clinical mastite was verified and it sub-practices medicine in the goat flock of the studied districts, and among the isolated ones starting from them sample of milk of animals with mastitis, form isolated colonies of Staphylococcus spp. In agreement with the evaluation done with the antibiotics used in the mastitis treatment the cefalotyne 30μg and the tetraciclyne 30μg they demonstrated larger efficiency front to these isolated with an index of 95.56% of sensibility. Being compared the values of the obtained inibition halus of the aqueous fractions and etanolic, it was verified that there was significant difference among them (p <0.01), suggesting that the formulation exercised activity antimicrobian in the studied cases. It was certain the concentration minimum inibitory of 100 mg/mL being obtained bactericidal effect in all the tested samples. It is suggested that obtained with the green propolis starting from the results, thiscan be used as an alternative treatment for goat mastitis, for having demonstrated efficiency with relationship to the bactericidal effect in the isolated ones tested.