PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

ABSTRACT.- Verocai G.G., Fernandes J.I., Correia T.R., Melo R.M.P.S., Alves P.A.M., Scott F.B. & Grisi L. 2009. Inefficacy of albendazole sulphoxide and ivermectin for the treatment of bovine parasitic otitis caused by rhabditiform nematodes. Pesquisa Veterinária Brasileira 29(11):910-912. Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ 23890-000, Brazil. E-mail: gverocai@gmail.com The purpose of this study was to evaluate the efficacy of orally administered albendazole sulphoxide and pour-on ivermectin for the treatment of bovine parasitic otitis caused by rhabditiform nematodes. Eighteen Gyr cows presenting clinical otitis were divided in three groups with six animals each. The first one did not receive any treatment (control group). The second one was treated with 0.5% pour-on ivermectin, 500µg/kg of body weight, and the third group was treated with oral 6% albendazole sulphoxide, at 6.0mg/kg. Both ear canals of each animal were reexamined on days 7 and 21 post treatment. The animals in the control group remained infected throughout the days of observation. Ivermectin treatment did not show effectiveness on days 7 or 21 post treatment. The albendazole sulphoxide treatment had an efficacy of 16.7 and 25% on days 7 and 21, respectively. Further studies are required to assess an effective treatment for this parasitic disease, especially via alternative administration routes, because of its significant impact on Bos taurus indicus cattle breeding in Tropical and Subtropical Regions.

• Otite parasitária nematóides rhabditiformes

Abstract in Portuguese:

RESUMO.- Verocai G.G., Fernandes J.I., Correia T.R., Melo R.M.P.S., Alves P.A.M., Scott F.B. & Grisi L. 2009. Inefficacy of albendazole sulphoxide and ivermectin for the treatment of bovine parasitic otitis caused by rhabditiform nematodes. [Ineficácia do sulfóxido de albendazole e da ivermectina no tratamento da otite parasitária bovina causada por nematóides rhabditiformes.] Pesquisa Veterinária Brasileira 29(11):910-912. Departamento de Parasitologia Animal, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ 23890-000, Brazil. E-mail: gverocai@gmail.com O objetivo deste estudo foi avaliar a eficácia do sulfóxido de albendazol administrado oralmente e da ivermectina “pour-on” no tratamento da otite parasitária bovina causada por nematóides rhabditiformes. Dezoito vacas Gir apresentando otite clínica foram divididas em três grupos de seis animais cada. O primeiro não recebeu tratamento (grupo controle). O segundo foi tratado com ivermectina “pour-on” a 0,05% na dose de 500µg/kg de peso vivo. O terceiro grupo foi tratado com sulfóxido de albendazol oral a 6% na dose 6,0mg/kg. Os condutos auditivos de todos os animais foram reexaminados nos dias 7 e 21 pós-tratamento. Os animais do grupo controle permaneceram infectados nos dias de observação. O tratamento com ivermectina não demonstrou eficácia alguma para os dias 7 e 21 pós-tratamento. O tratamento com sulfóxido de albendazol obteve 16,7 e 25% de eficácia nos dias 7 e 21, respectivamente. Mais estudos são necessários para determinação de tratamentos eficazes para tal doença parasitária, especialmente através de vias alternativas de administração, por causa de seu significante impacto na criação de Bos taurus indicus nas Regiões Tropical e Subtropical.

Abstract in English:

ABSTRACT.- Medeiros E.S., Santos M.V., Pinheiro Jr J.W., Faria E.B., Wanderley G.G., Teles J.A.A. & Mota R.A. 2009. [In vitro evaluation of the efficacy of commercial disinfectants used in pre and post-dipping against Staphylococcus spp. isolated from bovine mastitis.] Avaliação in vitro da eficácia de desinfetantes comerciais utilizados no pré e pós-dipping frente amostras de Staphylococcus spp. isoladas de mastite bovina. Pesquisa Veterinária Brasileira 29(1):71-75. Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE 52171-900, Brazil. E-mail: rinaldo.mota@hotmail.com The objective of this investigation was to evaluate the in vitro sensibility of Staphylococcus spp. to several commercially available disinfectants used for pre and post dipping. A total of 60 isolates of Staphylococcus spp., identified as Staphylococcus aureus (50) and Positive coagulase Staphylococcus (10) were obtained from the mammary glands of dairy cows with subclinical mastitis in the regions of Metropolitan Recife, the Agreste and the Zona da Mata of the State of Pernambuco, Brazil. As active ingredients were used a chlorine base (25%), iodine (0.6%), chlorhexidine (2.0%), quaternary ammonium (4.0%), and lactic acid (2.0%) at four specific intervals (15", 30", 60", and 300"). One hundred percent of S. aureus was found to be sensitive to iodine, 93.3% to chlorhexidine, 80% to ammonia, 35.6% to lactic acid, and 97.8% were resistant to chlorine at a 60-minute interval. With respect to the Positive coagulase Staphylococcus (SCP), 100.0% of the isolates were sensitive to iodine, 81.8% to quaternary ammonium, 99.9% to lactic acid, 72.7% to chlorhexidine, and 100% was resistant to chlorine at an interval of 60 minutes. It can be concluded that the highest disinfectant activity in vitro was found to be with iodine and chlorhexidine for S. aureus, and with iodine and lactic acid for SCP. A further conclusion was that it is important to undertake a periodic evaluation of the disinfectants used on the dairy properties in the regions studied, given the variety of sensibilities and resistance to disinfectants used, which may prejudice the control of bovine mastitis caused by Staphylococcus spp.

• Disinfectants mastitis Staphylococcus spp. dairy cows

Abstract in Portuguese:

ABSTRACT.- Medeiros E.S., Santos M.V., Pinheiro Jr J.W., Faria E.B., Wanderley G.G., Teles J.A.A. & Mota R.A. 2009. [In vitro evaluation of the efficacy of commercial disinfectants used in pre and post-dipping against Staphylococcus spp. isolated from bovine mastitis.] Avaliação in vitro da eficácia de desinfetantes comerciais utilizados no pré e pós-dipping frente amostras de Staphylococcus spp. isoladas de mastite bovina. Pesquisa Veterinária Brasileira 29(1):71-75. Departamento de Medicina Veterinária, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros s/n, Dois Irmãos, Recife, PE 52171-900, Brazil. E-mail: rinaldo.mota@hotmail.com The objective of this investigation was to evaluate the in vitro sensibility of Staphylococcus spp. to several commercially available disinfectants used for pre and post dipping. A total of 60 isolates of Staphylococcus spp., identified as Staphylococcus aureus (50) and Positive coagulase Staphylococcus (10) were obtained from the mammary glands of dairy cows with subclinical mastitis in the regions of Metropolitan Recife, the Agreste and the Zona da Mata of the State of Pernambuco, Brazil. As active ingredients were used a chlorine base (25%), iodine (0.6%), chlorhexidine (2.0%), quaternary ammonium (4.0%), and lactic acid (2.0%) at four specific intervals (15", 30", 60", and 300"). One hundred percent of S. aureus was found to be sensitive to iodine, 93.3% to chlorhexidine, 80% to ammonia, 35.6% to lactic acid, and 97.8% were resistant to chlorine at a 60-minute interval. With respect to the Positive coagulase Staphylococcus (SCP), 100.0% of the isolates were sensitive to iodine, 81.8% to quaternary ammonium, 99.9% to lactic acid, 72.7% to chlorhexidine, and 100% was resistant to chlorine at an interval of 60 minutes. It can be concluded that the highest disinfectant activity in vitro was found to be with iodine and chlorhexidine for S. aureus, and with iodine and lactic acid for SCP. A further conclusion was that it is important to undertake a periodic evaluation of the disinfectants used on the dairy properties in the regions studied, given the variety of sensibilities and resistance to disinfectants used, which may prejudice the control of bovine mastitis caused by Staphylococcus spp.

Abstract in English:

Selenite-novobiocin (SN) and tetrathionate-novobiocin (TN) broths were compared for the isolation of Salmonella from meat meal, It was also investigated the correlation between the occurrence of the indicator organisms and of Salmonella. SN and TN were equally effective. It was verified that none of these indicator groups (total coliforms and fecal coliforms) are reliable as an index for Salmonella contamination in meat meals. There was no correlation between Salmonella counts and the number of isolated Salmonella colonies.

• Salmonella coliforms selenite-novobiocin broth tetrahionate-novobiocin broth

Abstract in Portuguese:

Os caldos selenito-novobiocina (SN) e tetrationat-onovobiocina (TN) foram comparados durante o isolamento de Salmonella de amostras de farinha de carne utilizadas para fabricação de ração animal. Também, foram realizadas contagens de Salmonella e de coliformes (total e fecal) para verificar se é possível estabelecer alguma correlação entre a presença de coliformes e a presença e o isolamento de Salmonella. De acordo com os resultados obtidos, o caldo SN e o caldo TN demonstraram rendimento semelhante. As contagens de coliformes (total e fecal) segundo a análise estatística, não apresentaram correlação alguma (positiva ou negativa) com a contagem de Salmonella e com o número de cepas isoladas através dos caldos SN e TN. Também não foi constatada correlação entre a contagem de Salmonella e o número de cepas isoladas.

• Salmonella coliformes caldo selenito-novobiocina caldo tetrationato-novobiocina