Iodine concentration in forages from dairy farms in the IXth and X-th Regions of Chile

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dc.contributor.authorContreras, PA
dc.contributor.authorCeballos, A
dc.contributor.authorMatamoros, R
dc.contributor.authorWittwer, F
dc.date2003
dc.date.accessioned2021-04-30T16:34:20Z
dc.date.available2021-04-30T16:34:20Z
dc.description.abstractIodine (I) content of rations is a factor associated with the blood concentration of thyroxine (T-4) and triiodothyronine (T-3) in cattle. In herds from southern Chile, low blood concentrations of T-4 in grazing dairy cows have been reported. The objective was to obtain information about the I content in forage samples from dairy farms in the IXth and Xth Regions of Chile. During 1999 forage samples were taken from 25 dairy farms located in both Regions. The I concentration was analysed by a kinetic-colorimetric method. Mean, standard deviation and ranges and the frequency of samples with values below 0.4 ppm on a dry matter basis (normal value) were obtained. The average of I concentration in the forage samples was 0.20+/-0.08 ppm. Forage with normal concentrations were not found. These results suggest an I deficiency in forage from southern Chile, and may be associated with low blood concentrations of T-4 in grazing dairy cows.
dc.identifier.citationARCHIVOS DE MEDICINA VETERINARIA,Vol.35,75-79,2003
dc.identifier.doi10.4067/S0301-732X2003000100007
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/3056
dc.language.isoes
dc.publisherUNIV AUSTRAL CHILE. FAC CIENCIAS VETERINARIAS
dc.sourceARCHIVOS DE MEDICINA VETERINARIA
dc.subject.englishdairy cattle
dc.subject.englishminerals
dc.subject.englishforage
dc.subject.englishiodine
dc.titleIodine concentration in forages from dairy farms in the IXth and X-th Regions of Chile
dc.typeArticle
uct.catalogadorWOS
uct.indizacionSCI
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