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Abstract

During artificial insemination (AI) of sows the stimulation - most effective in presence of a boar - plays an important role. Aim of the present study was to determine whether the simultaneous presence of two boars during AI could lead to an improved stimulation of the sows and, in consequence,...

Author(s)
Zimmer, C.; Hoy, S.
Publisher
Schlütersche Verlagsgesellschaft GmbH & Co. KG, Hannover, Germany
Citation
Praktische Tierarzt, 2013, 94, 11, pp 1008-1015
Abstract

Improvement of reproductive performance in pigs through careful monitoring of artificial insemination in sows is discussed in this article. Focus is given on determining the optimum time for insemination, factors included in insemination monitoring, application of insemination monitoring and...

Author(s)
Hoy, S.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2012, No.168, pp 60-62
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

This study investigated an influence of PGF on three farms with 847 productive sows over one year in North Germany. For artificial insemination 84 boars (NN or NP) were used from one stud. One ml of Dinolytic® (Pfizer/Karlsruhe) was added to the semen already during the diluting process in the...

Author(s)
Münster, A.; Henze, C.; Krieter, J.
Publisher
Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2009, 81, 4, pp 250-264
Abstract

The study investigated the effect of additional illumination prior to artificial insemination on the reproductive performance of sows and gilts. Additional illumination was provided after weaning of piglets (sows) and after the last administration of regumate (gilts). In gilts, additional...

Author(s)
Lau, H.
Publisher
Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2008, 80, 3, pp 213-223
Abstract

It is suggested that, compared with some other countries, too many sows in Germany return to oestrus after insemination. A method is described, called insemination monitoring, to improve the fertility of sows. It involves careful monitoring of sows for signs of oestrus, and recording times and...

Author(s)
Hoy, S.
Publisher
Landwirtschaftsverlag GmbH, Münster-Hiltrup, Germany
Citation
SUS - Schweinezucht und Schweinemast, 2007, No.1, pp 42-45
Abstract

In the last ten years the number of artificial insemination of sows has been greatly extended in the old federal countries, so far 85% of the sows are inseminated in Germany. This development was achieved and supported by investigations on the relation between oestrus and ovulation, and related...

Author(s)
Heinze, A.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2005, 77, 2/3, pp 171-180
Abstract

In a large Hungarian breeding unit, sows of identical genetics, age, body condition and management during the same season were subjected to determine the effect of oestrus duration and number of inseminations on farrowing rate and litter size. Gilts (n=169) and sows (n=301) showing weaning to...

Author(s)
Waller, C. M.; Bilkei, G.
Publisher
Schattauer GmbH, Stuttgart, Germany
Citation
Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere, 2004, 32, 1, pp 40-47
Abstract

In 2000, 4 600 000 sows in Germany were inseminated, and 95.8% of inseminations were carried out by farmers. An account is given of the effects of breed, AI station and inseminator on litter size, the heritability of age at first oestrus, ovulation rate, piglet mortality, litter size at birth and...

Author(s)
Leiding, C.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2004, No.152, pp 56-58
Abstract

Methods aimed at programmed pig production are summarized with reference to recent practice in Germany, under the headings: oestrus synchronization in gilts; ovulation synchronization with time-orientated insemination; farrowing synchronization.

Author(s)
Wähner, M.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2003, No.150, pp 58-60

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