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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

Hofmann (1935) submitted a proposal, using a timed mating and farrowing system to program the reproductive dates in a sow herd and thus to direct the breeding and production cycle taut. In 1958 to 1964, the developed system of periodic farrowing was operated in Thuringia first farms successfully...

Author(s)
Hühn, U.; Wähner, M.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2016, 88, 4, pp 268-281
Abstract

Analysis of the reasons for culling of purchased gilts and 2. check-up studies on the percentage of animals fit for breeding following heat synchronization and artificial insemination over a period of 10 years (1999-2008). Basis: records of veterinary herd management service. Material and methods:...

Author(s)
Heurich, U.; Hühn, U.
Publisher
Schattauer GmbH, Stuttgart, Germany
Citation
Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere, 2010, 38, 4, pp 219-224
Abstract

Prostaglandin F (PGF) is used in different ways in swine production. It could be that PGF added to diluted semen influences a sperm transport by also influencing the contractibility of the uterus. This study investigated the influence of PGF on the sperm motility when Dinolytic (Fa. Pfizer, ...

Author(s)
Münster, A.; Henze, C.; Krieter, J.
Publisher
Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2008, 80, 4, pp 279-290
Abstract

The objective of this study was to characterize the effect of an experimental infection with classical swine fever (CSF) virus on libido and ejaculate parameters of adult boars. Four boars aged 10 months were infected with a CSF field isolate (Visbek/Han95). Semen was collected every second day...

Author(s)
Wehrend, A.; Fritzemeier, J.; Flögel-Niesmann, G.; Mönnig, V.; Hollen-Horst, M.; Meinecke, B.
Publisher
Verlag M. & H. Schaper, Alfeld (Leine), Germany
Citation
Deutsche Tierärztliche Wochenschrift, 2006, 113, 7, pp 251-255
Abstract

The most efficient way to shift the sex ratio of offspring is to select spermatozoa according to the sex chromosomes. The difference in their DNA content can be determined by flow cytometry to produce populations of either sex at high accuracy. As the method is based on single cell identification,...

Author(s)
Klinc, P.; Rath, D.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2005, 77, 2/3, pp 218-229
Abstract

This paper refers to AI in pigs. In the year 2000, 4.5 million inseminations were carried out, compared with approximately 2.6 million in 1995 and 1.2 million in 1990. There are currently 34 pig AI stations, controlled by 23 breeding organizations. Almost all inseminations are carried out by...

Author(s)
Leiding, C.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2002, No.147, pp 62-67
Abstract

This illustrated article describes equipment used during insemination of pigs, and hygienic measures that should be followed during semen collection and insemination. During storage and insemination, semen should be protected from sunlight and kept at 15°-20° C. Semen can be inseminated at the...

Author(s)
Gurt, P.; Hitz, F.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2001, No.146, pp 59-60
Abstract

Using data from the German pig crossbreeding programme, genetic and phenotypic correlations among performance test results (growth and backfat thickness), ejaculate traits (volume, photometric density and total sperm number) and 2 measures of sperm motility were estimated. Correlations of...

Author(s)
Grandjot, G.; Brandt, H.; Glodek, P.
Citation
Archiv für Tierzucht, 1997, 40, 5, pp 433-443
Abstract

Data from the German pig crossbreeding programme were analysed. Semen characters were significantly affected by boar line, AI station, season and boar age. The CR and litter size were significantly affected by litter genotype, parity, farm and season, and decreases in the values of both of these...

Author(s)
Grandjot, G.; Brandt, H.; Glodek, P.
Citation
Archiv für Tierzucht, 1997, 40, 5, pp 421-432

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