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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

The aim of the present study was to determine if stimulation of the sows, and therefore the success of AI could be enhanced by the presence of two boars during AI. During artificial insemination, one boar (n=199 gilts and sows) or two boars consecutively (n=199 gilts and sows) were positioned in...

Author(s)
Zimmer, C.; Hoy, S.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2013, 85, 5, pp 388-395
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

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

A study was carried out on 2 German pig farms to compare 2 types of catheter (standard and Safe Blue) used for artificial insemination. The Safe Blue catheter was inserted while still in a plastic bag. The catheter was pushed through the bag at a depth of 10 cm for insemination. Success rate with...

Author(s)
Hoy, S.
Publisher
DLV Deutscher Landwirtschaftsverlag Berlin GmbH, Berlin, Germany
Citation
Neue Landwirtschaft, 2005, No.7, pp 50-52
Abstract

Continuous video recordings with infrared video technique and computer supported analysis using the OBSERVER programme were conducted on 78 Pietrain boars in 3 artificial insemination (AI) stations in Germany for 3×24 h. The mean percentage of occupation of the bedding during 24 h was 7.4±4.4%...

Author(s)
Rohrmann, S.; Hoy, S.
Publisher
Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere, Dummerstorf, Germany
Citation
Archiv für Tierzucht, 2004, 47, 6, pp 565-574
Abstract

The height and body length of 456 boars of different breeds, from 3 A.I. centers, with ages ranging from 8 to 98 months were measured. The mean testis to snout length of all boars was 195.4±12.5 cm with a range of 54 cm. The withers height (91.6±6.4 cm) ranged from 76 to 107 cm and the shoulder...

Author(s)
Rohrmann, S.; Hoy, S.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2004, 76, 4, pp 262-271