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A significant association was observed between body condition score (BCS) and a number of reproductive traits, including conception at first artificial insemination (AI), number of inseminations per conception, calving to conception and calving intervals, percentage pregnant by the end of a 305\u2010day lactation and incidence of metritis. The BCS from calving to week 9 (before the first AI) appeared to adequately predict future reproductive performance as it was correlated with calving interval, conception at first AI, metritis and percentage pregnant by the end of a 305\u2010day lactation. Plasma \u03b2\u2010hydroxybutyrate (BHB) concentrations were correlated with the latter trait only, whereas non\u2010esterified fatty acid concentrations were not associated with reproductive performance.<\/jats:p>","DOI":"10.1136\/vr.c6259","type":"journal-article","created":{"date-parts":[[2011,2,15]],"date-time":"2011-02-15T21:00:18Z","timestamp":1297803618000},"page":"189-189","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":10,"title":["Phenotypic association between energy balance indicators and reproductive performance in primiparous Holstein cows"],"prefix":"10.1002","volume":"168","author":[{"given":"G. 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