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Twice weekly blood progesterone analysis was used to monitor resumption of ovarian cyclicity in 239 postpartum periods of 144 Holstein cows in one herd between D7 and D70 postpartum (PP). Calving season, low milk production and low BCS were risk factors for delayed cyclicity (DC: 16.3%). Retained...

Ledoux, D.; L Touze, J.; Richard, C.; Ponter, A. A.; Bosc, M. J.; Grimard, B.
École Nationale Vétérinaire de Toulouse, Toulouse, France
Revue de Médecine Vétérinaire, 2011, 162, 2, pp 98-106