Sanitizer residues in the milk of cows which had passed through footbaths
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Data
2013-09
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Resumo
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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Palavras-chave
Cattle, Chlorites, Digital illness, Environmental contamination, Sodium hypochlorite, Copper sulfate, Hipoclorito de sódio, Sulfato de cobre, Cloretos, Doenças digitais
Citação
GOULART, Daniel S.; ORLANDO-GOULART, Camila F. P.; SILVA, Jordanna A. e; FREITAS, Sabrina L. R.; CAETANO, Leandro B. U.; FIORAVANTI, Maria C. S.; SILVA, Luiz A. F. da. Sanitizer residues in the milk of cows which had passed through footbaths. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 33, n. 9, p. 1076-1080, Sept. 2013.