Use of AI technician scores for body condition, uterine tone and uterine discharge in a model with disease and milk production parameters to predict pregnancy risk at first AI in holstein dairy cows

Author： Loeffler S.H.   de Vries M.J.   Schukken Y.H.   de Zeeuw A.C.   Dijkhuizen A.A.   de Graaf F.M.   Brand A.  

Publisher： Elsevier

ISSN： 0093-691X

Source： Theriogenology, Vol.51, Iss.7, 1999-05, pp. : 1267-1284

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