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Evaluation of concentration and antiseptic effect of sodium hypochlorite in cattle foot bath

Abstract:

This study aimed to evaluate the antiseptic effect of 2% and 4% sodium hypochloride solutions in footbath for bovines, considering parameters as stability during storage and use, action on mesophilic aerobic and anaerobic microorganisms and direct effects on tissue. Healthy bovines passed by a footbath, once a day, during five days. At the end of passages, samples of each solution were harvested for physiochemical and microbiological analysis. The first samples were obtained immediately after the solution deposition in footbath. Student t Test (p= 0, 05%) was applied for data analysis. It was observed that 2% and 4% solutions didnt show significant differences on aerobic and anaerobic microorganisms counting, suggesting that solutions have the same antiseptic effect. In both solutions, the pH remained steady. Free chlorine concentrations showed levels equivalent to zero from the third day. Clinical signs of injury werent observed in interdigital skin and others digital regions. Thus, these results allow us to conclude that sodium hypochloride solution in 2% and 4% dilutions, when they are used in footbath, have antiseptic effect in bovine digits, however, the renewal must be after 48 hours. RESUMO O objetivo deste trabalho foi avaliar o efeito sanitizante do hipoclorito de sódio em soluções a 2% e 4% em pedilúvio para bovinos, empregando como parâmetros sua estabilidade durante estocagem e uso, ação sobre microrganismos aeróbios mesófilos e anaeróbios e o efeito direto sobre o tecido animal. Durante cinco dias, bovinos saudáveis passaram em um pedilúvio, em intervalos de 24 horas. Ao final da passagem eram colhidas amostras …