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Abstract

Author(s)
Nyenhuis, M.; Kühlewind, J.
Publisher
DLV Deutscher Landwirtschaftsverlag Berlin GmbH, Berlin, Germany
Citation
Neue Landwirtschaft, 2012, No.11, pp 32-34
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

This paper discusses the analysis of seasonal infertility in sows and its economic effects. Focus is given on the possible causes of seasonal infertility and its effects on litter size, artificial insemination success, reproductive disorders and culling of sows.

Author(s)
Hühn, U.; Leiding, C.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2012, No.168, pp 57-59
Abstract

Author(s)
Mathes, W.; Brüggemann, J.
Publisher
DLV Deutscher Landwirtschaftsverlag Berlin GmbH, Berlin, Germany
Citation
Neue Landwirtschaft, 2011, No.9, pp S1-S48
Abstract

This paper describes the development of cattle and pig production in Germany over the last 100 years and subsequently addresses the actual status of cattle and pig production separately. Development is characterized by the growth of holding size and specialization. Cattle and pig production still...

Author(s)
Meyn, K.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2005, 77, 6, pp 478-489
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
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

Artificial insemination is the key factor which determines breeding structures for farm animals. In the case of poultry, breeding exchange has major advantages as day-old chicks and hatching eggs can be shipped anywhere in the world. The competitive position of a breeding society or a breeding...

Author(s)
Preisinger, R.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2004, 76, 6, pp 395-402
Abstract

The objective of the following analysis was to test the efficiency of the selection procedure against congenital anomalies in AI-boars of Bavaria. This selection index was in use since 1986. The investigation was based on records of 47 323 litters from 351 German Landrace (GL) boars and 1134...

Author(s)
Beissner, B.; Hamann, H.; Distl, O.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2003, 75, 2, pp 101-114
Abstract

Hereditary defects in pigs were analysed in relation to genetic and environmental factors from data obtained at the GFS Ascheberg AI Station in North Rhine/Westfalia, Germany for the years 1999-2002. Data from 7717 litters on 1115 pig farms, representing a total of 89 051 piglets, were examined....

Author(s)
Freitag, M.; Klein, D.; Südwestfalen, F.
Publisher
Landwirtschaftsverlag GmbH, Münster-Hiltrup, Germany
Citation
SUS - Schweinezucht und Schweinemast, 2003, No.4, pp 36-39

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