- Published:
Iodine Content in Colostrum and Milk of Cows and Sows
Jodhalten i colostrum och vanlig mjölk från kor och suggor
Acta Veterinaria Scandinavica volume 14, pages 254–262 (1973)
Abstract
The concentration of total iodine in colostrum and normal milk of cows and sows has been determined using a Technicon Autoanalyzer. In cows as well as in sows a lowering of the level of iodine in milk was observed during the first few days after parturition. At the first sampling within 8 hrs. after parturition the concentration of iodine in colostrum of cows from 2 herds was on average 3.4 and 2.4 μg/100 ml, respectively. Corresponding value for colostrum of the sows was 67 μg/100 ml. Based on informations about the composition of the food and daily food consumption it could be estimated that 0.5–1 and 20–45 % of the daily intake of iodine were secreted per 1 milk or colostrum of cows and sows, respectively. It can be concluded that the mammary gland of the sow has a considerably higher ability to concentrate iodine than that of the cow. Furthermore the concentration mechanism is more efficient immediately after parturition than at later stages of lactation.
Sammanfattning
Totaljodhalten i colostrum och vanlig mjölk från kor och suggor har bestamts med Technicon Autoanalyzer. Hos såväl kor som suggor observerades en sänkning av jodhalten i mjölk under de första dagarna efter partus. Vid första provtagningstillfället inom åtta timmar efter partus var totaljodkoncentrationen i colostrum från kor i de båda besättningarna i medeltal 3,4 respektive 2,4 μg/100 ml. I colostrum från suggor var jodhalten omedelbart efter partus i medeltal 67 μg/ 1O0 ml. Med utgångspunkt från foderstaterna beräknas att 0,5—1 och 20—45 % av det dagliga jodintaget hos kor respektive suggor utsöndras per 1 mjölk eller colostrum. Juvervävnaden hos sugga förefaller vid jämförelse med ko ha en avsevärt högre förmåga att koncentrera jod. Koncentrationsmekanismen hos säväl ko som sugga synes vara mer effektiv omedelbart efter partus än senare under laktationen.
References
Brown-Grant, K.: Extrathyroidal iodide concentrating mechanisms. Physiol. Rev. 1961, 41, 189–213.
Bustad, L. K., D. H. Wood, E. E. Elefson, H. A. Ragan & R. O. McClellan: I131 in milk and thyroid of dairy cattle following a single contamination event and prolonged daily administration. Health Phys. 1963, 9, 1231–1234.
Ekman, L.: Clinico-chemical and morphological studies of thyroid function in cattle. In Mineral Studies with Isotopes in Domestic Animals. International Atomic Energy Agency, Vienna 1971, 101–109.
Garner, R. J. & R. Scott Russell: Isotopes of iodine. In Radioactivity and Human Diet. ed. R. Scott Russell. Pergamon Press, London 1966, 297–315.
Hemken, R. W.: Iodine. J. Dairy Sci. 1970, 53, 1138–1143.
Kirchgessner, M.: Wechselbeziehungen zwischen Spurenelementen in Futtermitteln und tierischen Substanzen sowie Abhängigkeitsverhältnisse zwischen einzelnen Elementen bei der Retention. (The interaction between trace elements in fodder and substance of animal origin as well as the relationship between the retention of certain elements). Z. Tierphysiol. Tierernährung u. Futtermitt.-k. 1959, 14, 270–277.
Man, E. B. & J. Benotti: Rutanol-extractable iodine in human and bovine colostrum and milk. Clin. Chem. 1969, 15, 1141–1146.
Neuhaus, U.: Die Milchleistung der Sau. (Milk production of the sow). Z. Tierzücht. Züchtungsbiol. 1961, 15, 160–191.
Onderscheka, K.: Untersuchungen über Menge und Zusammensetzung der Schweinemilch und der Einfluss dieser Faktoren auf das Wachstum der Ferkel. (Quality and composition of sows’ milk in relation to the growth of piglets). Beiheft zur Wien. tierärztl. Mschr. 1969, 56, Heft. 10.
Stöckl, W. & R. Leskova: Untersuchungen über den Jodgehalt in der Milch und Kolostrum des Rindes. (Studies on the iodine content of cows’ milk and colostrum). Milchwiss. 1967, 22, 692–694.
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This investigation was supported by grants from the Swedish Council for Forestry and Agricultural Research (A 3176/B 2331).