RESUMO:O experimento consistiu na avaliação da eficácia de um produto comercial a base de extrato de oxicoco (pHD® -Biomin LTDA) no tratamento de infecções do trato urinário (ITU) em porcas. Foram utilizadas 42 porcas, com idade gestacional variando entre 50 e 70 dias, portadoras ou não de ITU. Os animais sadios foram diferenciados dos animais afetados mediante resultados de urinálise e urocultivo. O ensaio foi composto por: porcas com ITU que receberam o produto a base de extrato de oxicoco na ração por um período de 14 dias; porcas negativas para ITU (controle negativo); e porcas positivas para ITU (controle positivo). Foram coletadas amostras de urina nos dias zero, sete e 14 após o início do tratamento. Realizou-se urinálise completa dessas amostras, avaliação da densidade urinária específica, do pH, contagem bacteriana e isolamento bacteriano. A E. coli foi o agente mais frequente no isolamento bacteriano (90,62%). Os resultados demonstraram que o produto a base de extrato de oxicoco foi eficaz em promover redução do pH urinário, porém não interferiu em mais nenhum dos outros parâmetros avaliados. Palavras-chave: acidificante urinário; contagem bacteriana; Escherichia coli; pH; urinálise EFFECTS OF CRANBERRY EXTRACT IN THE TREATMENT OF URINARY TRACT INFECTIONS IN SOWS ABSTRACT:The experiment consisted in assessing the effectiveness of a commercial product based on cranberry extracts (pHD® -Biomin LTDA) in the treatment of urinary tract infections (UTI) in sows. Were used 42 sows, with gestational ages ranging between 50 and 70 days, either suffering from UTI or not. Healthy animals were differentiated from affected animals by urinalysis and urine culture. The experiment was composed of sows with UTI that received the cranberry extract product in the diet for a period of 14 days; sows negative for UTI (negative controls) and sows positive for UTI (positive controls). The former two groups did not receive the cranberry extract product in the diet. Urine samples were collected on days zero, seven and 14 after initiation of treatment. Complete urinalysis of these samples, urine specific gravity, pH, bacterial count and bacterial isolation were performed. E. coli was the most frequent isolated agent (90,62%). The results showed that the commercial product made with cranberry extract was effective in promoting a reduction of urinary pH, but did not interfere in any other parameters observed.
ABSTRACT.-Mazutti K., Locatelli-Dittrich R., Lunardon I., Kuchiishi S.S., Lara A.C., Zotti E. & Alberton G.C. 2013. Evaluation of the reagent test strips and microscopic examination of urine in the diagnosis of urinary tract infection in sows. Pesquisa Veterinária Brasileira 33(9):1103-1108. Curso de Medicina Veterinária, Escola de Ciências Agrárias e Medicina Veterinária, Pontifícia Universidade Católica do Paraná, Campus Curitiba, Rua Imaculada Conceição 1155, Prado Velho, Curitiba, PR 80215-901, Brazil. E-mail: kelly.mazutti@pucpr.brThe diagnosis of the urinary tract infection (UTI) in sows is usually performed by using reagent test strips, since it is a fast and practical method, and capable of being done at the farm. The microscopic examination of the urine is rarely used at the farm since it is a more time consuming and difficult technique. However, there are no studies on the accuracy of those two techniques for the UTI diagnosis on this species. This study aims to assess the accuracy of the reagent test strip and the urine microscopic examination in the diagnosis of ITU in sows, comparing them with the bacteriological examination of urine. In order to select the sows for this study, a chemical reagent test strip was carried out previously and a total of 139 sows were selected, 66 sows of which showed positivity to nitrite in the reagent test strip and 73 without nitrituria. Then, the next day, a new sample collection for performing a complete urinalysis was carried out from those 139 sows, which included physical, chemical, microscopic and microbiological examination of these urine samples. The results revealed that the nitrite test of the reagent strip showed 100% of specificity and 93% of sensitivity. The specificity of the microscopic examination for bacteriuria was 82% and the sensitivity was 100%. The UTI diagnosis by using reagent strips and/or the urine sediment test is reliable if compared to the urine bacteriological examination, which makes possible the rapid diagnosis of UTI in sows at the farm. RESUMO.-[Precisão da tira reagente e do exame microscópico da urina no diagnóstico de infecções do trato urinário em porcas.] O diagnóstico de infecção do trato urinário (ITU) em porcas geralmente é feito com o auxílio de tiras reagentes, por ser um método rápido, prático e passível de ser realizado na própria granja. O exame microscópico da urina raramente é utilizado em granjas por ser uma técnica mais demorada e trabalhosa. No entanto, não existem estudos sobre a precisão destas duas técni-cas no diagnóstico de ITU nesta espécie. O objetivo deste estudo foi avaliar a precisão da tira reagente e do exame microscópico da urina no diagnóstico de ITU em porcas, comparando-os com o exame bacteriológico da urina. Para selecionar as porcas que iriam compor o estudo foi realizado um exame químico prévio com tira reagente, do qual foram selecionadas 139 porcas, 66 positivas para nitrito na tira reagente e 73 negativas. No dia seguinte foi realizada uma nova coleta de urina destas 139 porcas para realização d...
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