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Freie Universität Berlin: Berlin, DE

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Lukas Bretzinger

Works (5)

Evaluation of Four Different Automated Activity Monitoring Systems to Identify Anovulatory Cows in Early Lactation

Animals
2024-11-02 | Journal article
DOI: 10.3390/ani14213145
Contributors: Lukas Frieder Bretzinger; Marvin Hölper; Christie Marie Tippenhauer; Jan-Lukas Plenio; Augusto Madureira; Wolfgang Heuwieser; Stefan Borchardt
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Effect of a progesterone-releasing intravaginal device (PRID) for 8 days during a modified Ovsynch protocol on pregnancy outcomes in lactating Holstein cows

JDS Communications
2023-07 | Journal article
DOI: 10.3168/jdsc.2022-0314
Contributors: M. Hölper; L. Bretzinger; F. Randi; W. Heuwieser; S. Borchardt
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Effect of transition cow health and estrous expression detected by an automated activity monitoring system within 60 days in milk on reproductive performance of lactating Holstein cows

Journal of Dairy Science
2023-06 | Journal article
DOI: 10.3168/jds.2022-22616
Contributors: L.F. Bretzinger; C.M. Tippenhauer; J.-L. Plenio; W. Heuwieser; S. Borchardt
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Evaluation of the diagnostic accuracy of a point-of-care device to measure concentrations of nonesterified fatty acids in serum and whole blood

JDS Communications
2023-05 | Journal article
DOI: 10.3168/jdsc.2022-0269
Contributors: P.L. Venjakob; L.F. Bretzinger; S. Borchardt; C. Weber; W. Heuwieser
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Effect of dose and frequency of prostaglandin F2α treatments during a 7-day Ovsynch protocol with an intravaginal progesterone releasing device on luteal regression and pregnancy outcomes in lactating Holstein cows

Journal of Dairy Science
2023-01 | Journal article
DOI: 10.3168/jds.2022-22245
Contributors: M. Hölper; L. Bretzinger; F. Randi; W. Heuwieser; S. Borchardt
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