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This cross\u2010sectional study was conducted in dairy cows (<jats:italic>n\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>107), which had more of two parities. The concentration of \u03b2\u2010hydroxybutyric (<jats:styled-content style=\"fixed-case\">BHB<\/jats:styled-content>) in blood was quantified through a hand\u2010held meter. Potential risk factors evaluated were calving interval (<jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content>), milk yield in previous lactation, metritis, dystocia, calf sex (male), parity (\u22643 vs. \u22654) and pre\u2010partum body condition score (<jats:styled-content style=\"fixed-case\">BCS<\/jats:styled-content>\u00a0\u2264\u00a03.5 vs. \u22653.75). Prevalence of <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content> was 10.3% (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 4.7\u201315) between 4 and 19 <jats:styled-content style=\"fixed-case\">DIM<\/jats:styled-content>. Risk factors identified were the occurrence of both metritis and pre\u2010partum <jats:styled-content style=\"fixed-case\">BCS<\/jats:styled-content>\u00a0\u2265\u00a03.75. Cows with metritis had 4.9 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.17\u201320.98) times more risk of developing <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content> than cows without metritis. And the cows with pre\u2010partum <jats:styled-content style=\"fixed-case\">BCS<\/jats:styled-content>\u00a0\u2265\u00a03.75 had 5.25 (95% <jats:styled-content style=\"fixed-case\">CI<\/jats:styled-content> 1.32\u201321.11) times more risk of developing <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content> than cows with pre\u2010partum <jats:styled-content style=\"fixed-case\">BCS<\/jats:styled-content>\u00a0\u2264\u00a03.5. Metritis could induce a lower feed intake and promote the development of <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content>. High pre\u2010partum <jats:styled-content style=\"fixed-case\">BCS<\/jats:styled-content> could induce a greater mobilization of body reserves altering liver function and aggravating post\u2010partum <jats:styled-content style=\"fixed-case\">NEB<\/jats:styled-content>. The results are indicative of the expected prevalence of <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content> in grazing production system. Factors associated could help to identify cattle at risk of <jats:styled-content style=\"fixed-case\">SCK<\/jats:styled-content> and improve the management of strategies to limit the effects.<\/jats:p>","DOI":"10.1111\/jpn.12141","type":"journal-article","created":{"date-parts":[[2013,11,15]],"date-time":"2013-11-15T09:02:46Z","timestamp":1384506166000},"page":"838-844","source":"Crossref","is-referenced-by-count":50,"title":["Subclinical ketosis in dairy cows: prevalence and risk factors in grazing production system"],"prefix":"10.1111","volume":"98","author":[{"given":"C. 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