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J.B. Roelofs

Wageningen University and Research Centre

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Publication

Featured researches published by J.B. Roelofs.

Theriogenology | 2005

Pedometer readings for estrous detection and as predictor for time of ovulation in dairy cattle

J.B. Roelofs; Frank J.C.M. van Eerdenburg; N.M. Soede; B. Kemp

Theriogenology | 2005

Various behavioral signs of estrous and their relationship with time of ovulation in dairy cattle.

J.B. Roelofs; F.J.C.M. van Eerdenburg; N.M. Soede; B. Kemp

Theriogenology | 2006

Effects of insemination-ovulation interval on fertilization rates and embryo characteristics in dairy cattle

J.B. Roelofs; E.A.M. Graat; E. Mullaart; N.M. Soede; W. Voskamp-Harkema; B. Kemp

Animal Reproduction Science | 2006

Relationship between progesterone concentrations in milk and blood and time of ovulation in dairy cattle

J.B. Roelofs; F.J.C.M. van Eerdenburg; W. Hazeleger; N.M. Soede; B. Kemp

Theriogenology | 2004

Influence of repeated rectal ultrasound examinations on hormone profiles and behaviour around oestrus and ovulation in dairy cattle

J.B. Roelofs; Emmy G. Bouwman; S.J. Dieleman; Frank J.C.M. van Eerdenburg; Lucia M.T.E. Kaal-Lansbergen; N.M. Soede; B. Kemp

Reproduction in Domestic Animals | 2007

Effect of repeated stress treatments during the follicular phase and early pregnancy on reproductive performance of gilts

N.M. Soede; J.B. Roelofs; R.J.E. Verheijen; W.G.P. Schouten; W. Hazeleger; B. Kemp

Journal of Dairy Science | 2006

Relationship of plasma nonesterified fatty acids and walking activity in postpartum dairy cows.

A.A. Adewuyi; J.B. Roelofs; E. Gruys; Mathilda J. M. Toussaint; F.J.C.M. van Eerdenburg

Animal Reproduction Science | 2006

Effect of time of artificial insemination on embryo sex ratio in dairy cattle.

J.B. Roelofs; E.B. Bouwman; Hanne G. Pedersen; Z. Riestra Rasmussen; N.M. Soede; Preben D. Thomsen; B. Kemp

Theriogenology | 2007

The acute effect of bull presence on plasma profiles of luteinizing hormone in postpartum, anoestrous dairy cows

J.B. Roelofs; N.M. Soede; S.J. Dieleman; W. Voskamp-Harkema; B. Kemp

Animal Reproduction Science | 2008

The effect of fenceline bull exposure on expression of oestrus in dairy cows

J.B. Roelofs; N.M. Soede; W. Voskamp-Harkema; B. Kemp

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Collaboration

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B. Kemp

Wageningen University and Research Centre

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N.M. Soede

Wageningen University and Research Centre

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F.J.C.M. van Eerdenburg

Utrecht University

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Frank J.C.M. van Eerdenburg

Utrecht University

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S.J. Dieleman

Utrecht University

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W. Hazeleger

Wageningen University and Research Centre

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Hanne G. Pedersen

University of Copenhagen

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Preben D. Thomsen

University of Copenhagen

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A.A. Adewuyi

Utrecht University

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E. Gruys

Utrecht University

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