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Abstract

During the 2010/2011 calving season a remarkably large number of calves were born with umbilical hernia on a dairy farm in Schleswig-Holstein. All calves were descendants of the US Red Holstein bull "Avanti Red" used in artificial insemination. The objective of the present study was to compare the...

Author(s)
Vortmann, T. F.; Lupp, B.; Distl, O.
Publisher
Schlütersche Verlagsgesellschaft GmbH & Co. KG, Hannover, Germany
Citation
Berliner und Münchener Tierärztliche Wochenschrift, 2017, 130, 7/8, pp 364-368
Abstract

The aim of this study was to document the effectiveness of the implementation of a cosynch protocol and fixed time artificial insemination in suckled beef cows kept under range conditions in Germany. In addition, the suitability of hCG administration as an alternative to the GnRH analog buserelin...

Author(s)
Schmitz, W.; Kramer, M.; Erhardt, G.; Gauly, M.; Driancourt, M. A.; Holtz, W.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Livestock Science, 2017, 206, pp 141-147
Abstract

The shipping of semen doses to sow farms can impair boar semen quality. Unfortunately, there is currently no practice-oriented information available regarding general shipping conditions of boar semen. For this reason, a special mobile sensing app (TransportLog 1.0), utilizing the built-in sensors...

Author(s)
Schulze, M.; Bortfeldt, R.; Schäfer, J.; Jung, M.; Fuchs-Kittowski, F.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2018, 192, pp 328-334
Abstract

The present study has the objectives to analyse effects influencing the gestation length (GL) and the parturition conception interval (PCI) in Hanoverian warmblood horses and subsequently to estimate heritabilities for the GL and the PCI. Data comprised artificial insemination records of the years...

Author(s)
Christmann, A.; Sieme, H.; Martinsson, G.; Distl, O.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Livestock Science, 2017, 199, pp 63-68
Abstract

The spermatology reference laboratories located at the TiHo Hannover and IFN Schonow have been developing science-based quality control programs for boar studs for many years. In ongoing research projects funded by the FBF e. V. (Forderverein Biookonomieforschung), influencing factors on sperm...

Author(s)
Schulze, M.; Schäfer, J.; Jung, M.; Waberski, D.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2017, 89, 1, pp 22-28
Abstract

The aim of this study was the determination of genetical and environmental factors that affect the occurrence of aberrant spermatozoa. The evaluation comprised 1,543 ejaculates collected from 57 boars representing BHZP 77 (Piétrain line db.77 ®), German Large White, German Landrace and Piétrain....

Author(s)
Jansen, S.; Sharifi, A. R.; Knorr, C.; Wiedemann, I.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2017, 89, 4, pp 300-310
Abstract

To investigate the influence of the age of bulls at semen production on the non-return rate 56 days after first insemination 39 AI-bulls were investigated. Because of the small sample size for the individual ejaculates the non-return rate included data from first to third breeding services. These...

Author(s)
Melbaum, J.; Schwerhoff, M.; Gehrmeyer, D.; Melbaum, H.; Wassmuth, R.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2016, 88, 5, pp 371-378
Abstract

Periparturient hypocalcemia is frequently observed and considered as a gateway disease that is associated with various health issues. The objective of this study was to evaluate the association of hypocalcemia with early-lactation milk yield, reproductive performance, and culling across a large...

Author(s)
Venjakob, P. L.; Pieper, L.; Heuwieser, W.; Borchardt, S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 10, pp 9396-9405
Abstract

The objectives of the present study were to evaluate genetic parameters for semen quality traits of 241 fertile German Warmblood stallions regularly employed in artificial insemination (AI). Stallions were owned by the National Studs Celle and Warendorf in Germany. Semen traits analyzed were...

Author(s)
Gottschalk, M.; Sieme, H.; Martinsson, G.; Distl, O.
Publisher
Elsevier B. V., Amsterdam, Netherlands
Citation
Animal Reproduction Science, 2016, 170, pp 10-14
AbstractFull Text

The implementation of genomic selection (GS) together with the changes caused by globalization and trade liberalization of breeding material often raise the question of sustainability of breeding programs in small cattle populations/countries. The objective of this study was to describe the steps...

Author(s)
Špehar, M.; Ivkić, Z.; Vranić, I.; Crnčić, J.; Dražić, M.; Pašalić, D.; Barać, Z.
Publisher
Hrvatska mljekarska udruga - Croatian Dairy Union, Zagreb, Croatia
Citation
Mljekarstvo, 2019, 69, 2, pp 86-97

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