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Abstract

In a field trial in Germany, a comparison was made of the performance of sows inseminated using the standard method (group 1) or inseminated into the uterus without or with the use of a Gedis pipette (groups 2 and 3 respectively). In the 3 groups respectively, the ease of insemination was average,...

Author(s)
Niggemeyer, H.
Publisher
Landwirtschaftsverlag GmbH, Münster-Hiltrup, Germany
Citation
SUS - Schweinezucht und Schweinemast, 2004, No.6, pp 34-37
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

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

The influence of weather on reproductive traits of sows in breeding farms with an outdoor housing system was analysed. For this purpose, data from 6814 litters of sows in five outdoor farms and data from two gauging stations of the German Weather Service in the same region were used. For these...

Author(s)
Tölle, K. H.; Eden, T.; Krieter, J.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2003, 75, 2, pp 115-126
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

Body fat content of Pannon White growing rabbits was determined at 10 weeks of age using an EM-SCAN SA-3152 type Small Animal Body Composition Analyser (TOBEC method). Based on the fat content determined, the best and worst 16% of does and the best and worst 8% of bucks were chosen and mated with...

Author(s)
Lévai, A.; Milisits, G.
Publisher
Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere, Dummerstorf, Germany
Citation
Archiv für Tierzucht, 2002, 45, 4, pp 403-411
Abstract

An account is given of the benefits of the induction and synchronization of oestrus and ovulation in sows and of artificial insemination on litter size, annual piglet production and piglet viability, with special reference to conditions in Germany. The housing of synchronized sows in large groups...

Author(s)
Hühn, U.
Publisher
Besamungsverein Neustadt a.d. Aisch e.V., Neustadt a.d. Aisch, Germany
Citation
Zuchtwahl und Besamung, 2001, No. 145, pp 58-61
Abstract

The objective of the present study was to examine effects of the interval between insemination and ovulation on litter size and sex ratio. Over a period of ten months 195 German Landrace sows were checked for oestrus signs and ovulation. The routine insemination with daily oestrus control and...

Author(s)
Krieter, J.; Schulz, M.; Weitze, K. F.; Presuhn, U.
Citation
Züchtungskunde, 2000, 72, 5, pp 371-378
Abstract

Author(s)
Kerzel, I.
Publisher
Tierärztliche Hoschschule, Hannover, Germany
Citation
Zusammenhänge zwischen Brunstverlauf und Ovulation, sonographische ermittelter Frühträchtigkeit, Abferkelrate und Wurfgrösse in einer Hybridsauenherde nach künstlicher Besamung., 1999, pp 112 pp.

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