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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

Data from the German pig crossbreeding programme were analysed. Semen characters were significantly affected by boar line, AI station, season and boar age. The CR and litter size were significantly affected by litter genotype, parity, farm and season, and decreases in the values of both of these...

Author(s)
Grandjot, G.; Brandt, H.; Glodek, P.
Citation
Archiv für Tierzucht, 1997, 40, 5, pp 421-432
Abstract

Over a period of 13 months, 190 breeding sows were monitored during 3 reproductive cycles after the birth of their 2nd litter. Oestrus was checked by a teaser boar, followed by checks for the standing reflex 12 h later, and ovulation and pregnancy were detected by ultrasonics. There were no...

Author(s)
Friese, C.
Publisher
Tierärztliche Hochschule Hannover, Germany
Citation
Rauschebeginn, Rauschedauer und Ovulationszeitpunkt in einer Zuchtsauenherde unter besonderer Berücksichtigung der intra- und interindividuellen Varianz der merkmale in Verlauf von drei Reproduktionszyklen., 1995, pp 112 pp.
Abstract

Data on approx. 400 inseminated New Zealand White rabbit ♀♀ in Hungary were analysed. Conception rate and litter size at birth were significantly affected by season of insemination, ranging from 62.0% and 7.18 resp. for ♀♀ inseminated in Aug.-Sep. to 94.1% and 8.63 for those inseminated in...

Author(s)
Szendró, Z.; Bíró-Németh, E.
Publisher
Deutsche Veterinärmedizinische Gesellschaft, Giessen, Germany
Citation
7. Arbeitstagung über Haltung und Krankheiten der Kaninchen, Pelztiere und Heimtiere, 31. Mai bis 1. Juni, 1990 in Celle, 1990, pp 56-68
Abstract

Data for 1976-79 on gilts at 3 stations and on sows at 2 stations were analysed. At 1 station, the pregnancy rate among gilts was not significantly affected by month of insemination. At the 2nd station, the percentage of 3364 first inseminations resulting in pregnancy rates above or below 75%...

Author(s)
Hendel, C.; Elze, K.
Citation
Monatshefte für Veterinärmedizin, 1984, 39, 12, pp 427-430
Abstract

IN this book are amalgamated the theoretical and practical experience of a pioneer of fox farming in Germany and that of workers in North America, Scandinavia, and Central Europe. Acting on the advice of Professor Demolí, of Munich, the Leipzig pelt traders decided to form an organization for fox...

Author(s)
SCHMIDT, F.
Publisher
München: F. C. Mayer Verlag.,
Citation
Der Silberfuchs und seine Zucht., 1938, pp 404 pp.

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