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Abstract

Progeny testing can occur in the field, at AI stations or by a combination of these two procedures. The testing conditions and selection criteria differ with the AI stations. The advantages and disadvantages of the different systems are discussed with reference to the choices the piglet producer...

Author(s)
Brandt, H.
Publisher
Landwirtschaftsverlag GmbH, Münster-Hiltrup, Germany
Citation
SUS - Schweinezucht und Schweinemast, 2005, 3, pp 48-51
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

An account is given of the development of a new method of estimating the breeding value of pigs in Bavaria, which was initiated in 2002. Changes in the new method include more emphasis on meat composition, pH and and colour and less emphasis on daily gain, and they involve fairly complicated pH...

Author(s)
Götz, K. U.; Dodenhoff, J.; Habier, D.; Dempfle, L.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2004, No.152, pp 59-61
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

The suitability of the candidate genes oestrogen receptor (ESR), prolactin receptor (PRLR), retinol binding protein 4 (RBP4), osteopontin (OPN) and leukaemia inhibitory factor (LIF) for marker-assisted selection (MAS) was investigated by an association analysis between genetic polymorphisms in...

Author(s)
Steinheuer, R.; Drögemüller, C.; Hamann, H.; Götz, K. U.; Distl, O.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2003, 75, 3, pp 204-213
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
Abstract

Of 56 Swiss Improved Landrace and 105 Swiss Edelschwein sows inseminated with fresh semen from Finnish Landrace boars, 76.78 and 76.19% resp. farrowed. For 43 and 80 litters from sows of the 2 breeds, litter size averaged 10.74 and 11.37 respectively, and the total number of stillborn piglets was...

Citation
Kleinviehzüchter, 1993, 41, 17, pp 893-894
Abstract

Breeds, performance and progeny testing, and AI of pigs in the former German Democratic Republic are briefly described.

Citation
Kleinviehzüchter, 1991, 39, 2, pp 46-47
Abstract

Between 1950 and 1982, av. litter size at weaning of German Landraces increased from 8.6 to 9.5, number of piglets weaned per sow per year from 16.5 to 18.9, and preweaning piglet mortality was reduced from 18.3 to 7.6%. Between 1955 and 1982, av. daily gain increased from 769 to 812 g, feed...

Author(s)
Schmidt, L.
Citation
Bayerisches Landwirtschaftliches Jahrbuch, 1983, 60, 7, pp 795-842
Abstract

Danish Landrace semen was imported into Switzerland in Dec. 1981 in order to introduce new bloodlines into the Swiss Improved Landrance breed, the previous importation having taken place in 1978 from the UK. Twelve boars were selected from a herd of 104 Danish Landrace boars, 4 of which were to be...

Citation
Mitteilungen des Schweizerischen Verbandes für künstliche Besamung und der Schweizerischen Arbeitsgemeinschaft für künstliche Besamung, 1982, 20, 3, pp 112-115

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