{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,25]],"date-time":"2026-01-25T22:34:31Z","timestamp":1769380471911,"version":"3.49.0"},"reference-count":21,"publisher":"Cambridge University Press (CUP)","issue":"1","license":[{"start":{"date-parts":[[2007,3,9]],"date-time":"2007-03-09T00:00:00Z","timestamp":1173398400000},"content-version":"unspecified","delay-in-days":13887,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[1969,3]]},"abstract":"<jats:p>1. In Expt 1, five groups of four dry non-pregant ewes were given 1 kg\/day of a semi-purified diet containing either 0.05, 0.10 or 0.15% magnesium with 0 or 4.44% added potassium. Plasma Mg Concentrations were reduced by increasing the K intake (P &lt; 0.001) and by reducing the Mg intake (P &lt; 0.1). The effects were additive and, at the lowest Mg intake, supplementary K induced two cases of hypomagnesaemic tetany.<\/jats:p><jats:p>2. Expt 2 was similar to Expt 1 except that the ewes were suckling single lambs, they were given 2 kg food\/day and the lowest dietary Mg concentration was 0.075%. K again lowered plasma Mg values and induced two cases of tetany but reductions in Mg intake had no effect.<\/jats:p><jats:p>3. After repletion on the basal diet, sixteen lactating ewes from Expt 2 were transferred to a diet containing 0.05% Mg with 0, 2.22 or 4.44% added K. Plasma Mg concentrations fell rapidly on each treatment; the effect was greatest in K-supplemented groups ( P &lt; 0.05) and two cases of hypomagnesaemic tetany were induced at the highest K intake.<\/jats:p><jats:p>4. In each experiment the K supplements caused a rapid increase in plasma K concentrations to a relatively constant level some 5 mg\/100 ml above the resting value of 18.0 mg\/100 ml.<\/jats:p><jats:p>5. Some sheep refused K-supplemented diets at first and there was a tendency for refusals to be greatest at the lowest Mg intakes.<\/jats:p><jats:p>6. The results are discussed in relation to the aetiology of hypomagnesaemic tetany.<\/jats:p>","DOI":"10.1079\/bjn19690011","type":"journal-article","created":{"date-parts":[[2005,5,19]],"date-time":"2005-05-19T19:49:52Z","timestamp":1116532192000},"page":"81-90","source":"Crossref","is-referenced-by-count":54,"title":["Studies on magnesium in ruminant nutrition"],"prefix":"10.1017","volume":"23","author":[{"given":"N. F.","family":"Suttle","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. C.","family":"Field","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"56","published-online":{"date-parts":[[2007,3,9]]},"reference":[{"key":"S0007114569000134_ref011","unstructured":"Hendriks H. J. (1962). Some biochemical aspects of hypomagnesaemic tetany. PhD Thesis, University of Utrecht."},{"key":"S0007114569000134_ref016","first-page":"790","volume":"11","author":"Odell","year":"1952","journal-title":"J. Anim. Sci."},{"key":"S0007114569000134_ref002","first-page":"2","volume":"103","author":"Allcroft","year":"1947","journal-title":"Vet. J."},{"key":"S0007114569000134_ref005","doi-asserted-by":"publisher","DOI":"10.1017\/S0021859600011916"},{"key":"S0007114569000134_ref008","first-page":"761","volume":"11","author":"Eaton","year":"1952","journal-title":"J. Anim. Sci."},{"key":"S0007114569000134_ref012","doi-asserted-by":"publisher","DOI":"10.1111\/j.1751-0813.1966.tb08833.x"},{"key":"S0007114569000134_ref015","first-page":"315","volume":"67","author":"Meyer","year":"1960","journal-title":"Dt. tier\u00e4rztl. Wschr."},{"key":"S0007114569000134_ref001","volume-title":"The Nutrient Requirements of Farm Livestock. No. 2. Ruminants","year":"1965"},{"key":"S0007114569000134_ref003","doi-asserted-by":"publisher","DOI":"10.1017\/S0003356100033432"},{"key":"S0007114569000134_ref004","first-page":"35","volume":"2","author":"Blaxter","year":"1956","journal-title":"Vet. Rev. Annot."},{"key":"S0007114569000134_ref013","unstructured":"Kemp A. , Deijs W. B. , Hemkes O. J. & Van Es A. J. H. (1960). Proceedings of a Conference on Hypomagnesaemia, p. 23. LondonBritish Veterinary Association."},{"key":"S0007114569000134_ref006","doi-asserted-by":"publisher","DOI":"10.3181\/00379727-89-21870"},{"key":"S0007114569000134_ref007","first-page":"1265","volume":"86","author":"De Groot","year":"1961","journal-title":"Tijdschr. Diergeneesk."},{"key":"S0007114569000134_ref009","doi-asserted-by":"publisher","DOI":"10.1079\/BJN19640033"},{"key":"S0007114569000134_ref010","first-page":"12","volume":"VIII","author":"Halse","year":"1960","journal-title":"Proc. int. Grassld Congr."},{"key":"S0007114569000134_ref014","doi-asserted-by":"publisher","DOI":"10.2527\/jas1953.123451x"},{"key":"S0007114569000134_ref017","doi-asserted-by":"publisher","DOI":"10.1093\/ansci\/8.1.52"},{"key":"S0007114569000134_ref018","doi-asserted-by":"publisher","DOI":"10.1038\/184821a0"},{"key":"S0007114569000134_ref019","doi-asserted-by":"publisher","DOI":"10.1079\/BJN19670084"},{"key":"S0007114569000134_ref021","first-page":"1382","volume":"76","author":"Wilson","year":"1964","journal-title":"Vet. Rec."},{"key":"S0007114569000134_ref020","doi-asserted-by":"publisher","DOI":"10.1172\/JCI104306"}],"container-title":["British Journal of Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0007114569000134","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,6,1]],"date-time":"2019-06-01T16:26:38Z","timestamp":1559406398000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0007114569000134\/type\/journal_article"}},"subtitle":["9. Effect of potassium and magnesium intakes on development of hypomagnesaemia in sheep"],"short-title":[],"issued":{"date-parts":[[1969,3]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1969,3]]}},"alternative-id":["S0007114569000134"],"URL":"https:\/\/doi.org\/10.1079\/bjn19690011","relation":{},"ISSN":["0007-1145","1475-2662"],"issn-type":[{"value":"0007-1145","type":"print"},{"value":"1475-2662","type":"electronic"}],"subject":[],"published":{"date-parts":[[1969,3]]}}}