Alterações Da Composição E Da Produção De Leite Oriundo De Quartos Mamários De Vacas Com E Sem Mastite Subclínica De Acordo Com O Estágio E O Número De Lactações

Pesq. Vet. Bras. 33(9):1076-1080, setembro 2013 1076 RESUMO.-[Resíduos de sanitizantes em vacas de leite após passagem por pedilúvio.] O sulfato de cobre e o hipoclorito de sódio são empregados na prevenção e tratamento das enfermidades digitais dos bovinos, mas os valores residuais desses elementos foram pouco estudados. Neste estudo, avaliou-se a presença de resíduos de cobre e cloretos totais no leite de vacas saudáveis após passagens dos animais em pedilúvio contendo soluções formuladas com estas substâncias e estimou-se os custos das soluções. Utilizou-se 14 vacas saudáveis distribuí-das em dois grupos (GI e GII) de sete animais cada. Em GI, empregou-se solução de hipoclorito de sódio a 1% e, em GII, sulfato de cobre a 5%. As amostras de leite foram colhidas antes da passagem pelo pedilúvio (M0), após 24 (M1), 48 (M2) e 72 (M3) horas, além de 15 dias (M15) subsequentes à última passagem. Na análise estatística, a comparação entre momentos dentro de cada grupo foi realizada com teste de Friedman, seguido pelo teste de Dunn's (p<0,05). Concluiu-se que os valores de cloretos totais e de cobre no leite de bovinos saudáveis, após passagens diárias dos animais em pedilúvio por um período de sete dias, apresentaram algumas variações consideradas insuficientes para provocarem danos à saúde humana Copper sulfate and sodium hypochlorite are used in footbath solutions for the prevention and treatment of bovine digital diseases; however, data on the residues of such elements in milk are sparse in Brazil. This study evaluated the cost of applying the footbath treatment and the total amount of copper and chlorite residues in the milk of healthy cows after they had passed through these footbath solutions. Two groups of 7 cows each (GI and GII) were studied. In the case of GI, 1% sodium hypochlorite was used and for GII 5% copper sulfate was employed in the footbath. The milk samples were collected before the 7-day footbath treatment period (M0) and 24 h (M1), 48 h (M2), 72 h (M3) and 15 days (M15) after the last footbath. Statistical analysis to compare the different samples within each group was carried out by applying Friedman's test, followed by Dunn's test (p<0.05). It was concluded that the amount of total chlorites and copper in the milk of healthy cattle after routine daily footbaths for a period of 7 days presented some variations. However, the concentrations observed were considered insufficient to represent a risk to human health. The cost of the footbath solutions was found to be reasonable.

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Mastitis in Dairy Species

Rekowsky

Oliveira

Paim

et al. 2023

Cases on Managing Dairy Productive Chains

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The milk composition and quality are related to the animal's health (cow, buffalo, goat, and sheep). The mammary gland disease negatively impacts agricultural economies by reducing milk production and quality, treatment costs, discarded milk, and reduced longevity of animals. Therefore, the chapter reports how and which anatomical, physiological, and behavioral differences inherent to each species can influence the occurrence, treatment, and prevention of mastitis. Thus, early detection and antibiotic resistance are essential factors to exploit new detection methods and more natural remedies associated with reducing antimicrobial therapies such as antioxidants, nanoparticles, or essential oils base-plant. Furthermore, healthy animal selection and being genetically resistant to mastitis associated with reasonable hygienic procedures, training programs, and periodic equipment maintenance are crucial steps to ensure the supply of good quality milk and dairy products without risks to the population. In addition, these measures must respect the specificities of each milk-producing species.

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Alterações Da Composição E Da Produção De Leite Oriundo De Quartos Mamários De Vacas Com E Sem Mastite Subclínica De Acordo Com O Estágio E O Número De Lactações

Cited by 3 publications

References 7 publications

Influence of production level, number, and stage of lactation on milk quality in compost barn systems

Influence of production level, number, and stage of lactation on milk quality in compost barn systems

Sanitizer residues in the milk of cows which had passed through footbaths

Mastitis in Dairy Species

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