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Abstract

This article discusses the steadily increasing milk yield and milk production of various dairy cows in Switzerland. The beneficial effects of breeding value and genetic improvement through selection of dairy cows on their average milk yield are highlighted. Linear description and classification of...

Publisher
Schweizerischer Fleckviehzuchtverband, Zollikofen, Switzerland
Citation
SwissHerdbook Bulletin, 2015, No.7, pp 6-12
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

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

In breeding of sport horses artificial insemination has become a major breeding tool. Semen trade has to be done in accordance with national breeding legislation. If semen is shipped between EU countries, the Council directive 92/65/EEC has to be taken into account. In this relation, mainly...

Author(s)
Aurich, C.
Publisher
BWK Public Relations - Brigitte Weber-Kraus, Wien, Austria
Citation
Wiener Tierärztliche Monatsschrift, 2011, 98, 7/8, pp 150-155
Abstract

This study did not find any relationship between performance testing, breeding values and fertility during lifetime production. However, age at first insemination was significantly related to fertility performance. Gilts that were inseminated before day 240 of age were used for a longer period of...

Author(s)
Peter, F.; Lau, H.; Walter, J.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2011, 83, 3, pp 182-190
Abstract

This article discusses strategies on how to maintain fertility in high yielding dairy cows. Focusing on the socioeconomic aspects from the point of view of the government and dairy farmers in Austria. The correlation of proper timing in breeding cows to embryo mortality was also emphasized.

Author(s)
Loimayr, V.
Publisher
Lehr- und Forschungszentrum für Landwirtschaft Raumberg-Gumpenstein, Irdning, Austria
Citation
Bericht. 36. Viehwirtschaftliche Fachtagung. Physiologie und Verdauung, Mineralstoffversorgung, Milchproduktion, Gesundheitsmonitoring Rind, Rindfleischproduktion, Heumilch, 13-14 April 2010, Raumberg-Gumpenstein, Austria, 2010, pp 29-30
Abstract

This paper first considers the economic losses due to reduced dairy cow fertility resulting from poor oestrus detection. It then highlights possible technical aids (progesterone test, colour marking, and activity recording) for a good heat detection system that is essential for successful ...

Author(s)
Jung, M.
Publisher
Verlag Th. Mann, Gelsenkirchen, Germany
Citation
Milchpraxis, 2010, 48, 2, pp 54-57
Abstract

The problems related to unregular ovulating sows on German pig farms using the 3-week production rythm are outlined. These sows can often not join regular farrowing groups and increase the number of non-productive days significantly. Potential causes for these problems are listed. A system is...

Publisher
Landwirtschaftsverlag GmbH, Münster-Hiltrup, Germany
Citation
SUS - Schweinezucht und Schweinemast, 2009, No.4, pp 58-61
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 use of sexed semen in artificial insemination of animals can offer multiple benefits in breeding programmes, animal trading, reproduction, animal health, and biodiversity. A commercial application of selecting spermatozoa with X and Y bearing chromosomes in high speed flow cytometer has only...

Author(s)
Frese, D.
Publisher
Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2009, 81, 1, pp 7-13

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