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Abstract

The first semen production of 29 young genomic Holstein bulls was analyzed in a continuous spermatological screening. Bulls were housed under identical conditions at the RBB AI stud in Brandenburg, Germany. With most of the bulls a production of high quality frozen semen was possible from an age of ...

Author(s)
Osmers, J. H.; Herrmann, C.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2017, 89, 1, pp 9-21
Abstract

The aim of the present study has been the development of a semen processing method allowing the storage of equine semen at a high concentration of 333 million sperm/ml and low volume. Different seminal plasma concentrations were tested to achieve optimum spermatozoal motility. The quality of the...

Author(s)
Lübke, J. A. K.
Publisher
Mensch & Buch Verlag, Berlin, Germany
Citation
Einfluss von Seminalplasma auf die Motilität von gekühltem Hengstsamen nach einer hochkonzentrierten Lagerung, 2016, pp 111 pp.
Abstract

In order to increase fertility in modern dairy farming, the interval between first insemination and conception should be as short as possible. Therefore, one approach is to diagnose non pregnant animals early to re-inseminate them as soon as possible. Commercial milk pregnancy assays are available...

Author(s)
Engelke, J.; Feldmann, M.; Gundling, N.; Gundelach, Y.; Egli, C.; Hoedemaker, M.; Piechotta, M.
Publisher
Schlütersche Verlagsgesellschaft GmbH & Co. KG, Hannover, Germany
Citation
Berliner und Münchener Tierärztliche Wochenschrift, 2015, 128, 9/10, pp 402-408
Abstract

This article describes the selection, health screening and results of semen evaluation in bucks transported from Switzerland to France for the SZZV project conducted in 2012-2012.

Author(s)
Herren, U.
Publisher
Forum Kleinwiederkäuer/Petits Ruminants, Herzogenbuchsee, Switzerland
Citation
Forum Kleinwiederkäuer/Petits Ruminants, 2013, No.9, pp 13-18
Abstract

This study was conducted to improve the technology of bull semen cryopreservation to decrease the total sperm number per straw; and investigate the relationship between spermatological parameters and fertility of AI-bulls in the form of non-return-rate (NRR). In the first part of the study, a...

Author(s)
Griga, M. C.
Publisher
Freie Universität Berlin, Berlin, Germany
Citation
Untersuchungen zur Verbesserung der Technologie der Gefrierkonservierung von Bullensperma, 2008, pp 150 pp.
Abstract

An account is given of the superovulation, embryo collection, fertilisation, freezing and transfer of cattle embryos in Germany, where 6000 embryo transfers were carried out in the year 2000. In 2003, 452 cows, superovulated with 4 or 8 doses of FSH (Pluset), produced an average of 9.96 embryos...

Author(s)
Nohner, H. P.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2004, No.152, pp 17-21
Abstract

Author(s)
Klus, N.
Publisher
Tierärztliche Hochschule Hannover, Hannover, Germany
Citation
Entwicklung einer direktionalen Tiefgefriermethode für Pferdesperma im Vergleich zur Konservierung im Gefrierautomaten, 2001, pp 127 pp.
Abstract

132 warmblood mares were given 1500 IU HCG, deslorelin (GnRH analogue), 2.2 mg dinoprost (PGF analogue), or 7.5 or 15 mg luprostiol (PGF analogue), or were untreated (controls). Within 24 h of injection, significantly more mares had ovulated after luprostiol (37.5 and 41.1% for the 2 doses...

Author(s)
Brugmans, A. C.
Publisher
Tierärztliche Hochschule Hannover, Hannover, Germany
Citation
Untersuchungen zur ovulationsterminierenden Wirkung von hCG, Deslorelin, Luprostiol und Dinoprost bei der Stute unter Berucksichtigung der Konzeptionsrate nach instrumenteller Samenubertragung in zeitlich definierter Abhangigkeit zur Ovulationsinduktion mittels hCG und Deslorelin., 1997, pp 170 pp.
Abstract

This discussion focuses mainly on AI, the transfer, deep freezing, micromanipulation and sexing of embryos, and gene transfer. In Germany, the adoption of new biotechnological techniques is hindered by exaggerated attention to safety aspects, which has resulted in undue legal constraints, and the...

Author(s)
Görlach, A.
Citation
Deutsche Tierärztliche Wochenschrift, 1996, 103, 8/9, pp 312-315
Abstract

In a preliminary experiment with 191 Australian Merino ewes, a field protocol for laparoscopic intrauterine insemination was developed. Time of insemination (over a period of approximately 18 h) in relation to oestrus, as detected by teaser rams, did not significantly affect pregnancy rate. In the...

Author(s)
Wirth, P.
Publisher
Tierärztliche Hochschule Hannover, Hannover, Germany
Citation
Laparoskopische intrauterine Besamung beim Schaf unter Berucksichtigung verschiedener Spermakonservierungsverfahren und Besamungsdosen zur Optimierung der Produktion transfertauglicher Embryonen., 1996, pp 183 pp.

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