Eficácia de sanitizantes à base de ácido lático e à base de iodo na diminuição de microrganismos presentes nos tetos de vacas em lactação

Abstract

The management of pre and post-dipping for milk production is of extreme importance in order to have a product with quality guarantee, besides helping to maintain sanity of the tit and udder of the animals. This management involves the application of antiseptic product to the tits before (pre-dipping) and after (post-dipping) the milking, aiming to sanitize, disinfect and protect the tits mainly against microorganisms that cause mastitis. Products containing lactic acid have the ability to inhibit the growth of microorganisms, being less aggressive to the skin of the animals, since iodine presents a reduction in bacterial and fungal load, but its efficacy is compromised in the presence of organic matter, and it is also more aggressive to animal skin, so it always needs dilution or has moisturizers in the formulation. The purpose of the present study was to verify the efficacy of pre-dipping and post-dipping products based on two different products, one based on lactic acid and the other based on iodine. The amount of dirty present in the tits was classified by means of grades (scores) according to the intensity. Swab sample were taken previous to milking, after pre dipping and after milking, being three of them taken in the morning and three in afternoon weekly, the samples were then sent to total bacteria counting. Data were analyzed by frequency of responses. It was verified that the two tested products presented results relevant to the reduction of microorganisms present in the tits lactating cows for both pre and post-dipping.