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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

This paper discusses the value of conventional and new techniques as indicators of the fertilizing ability of spermatozoa. The classical assessment of sperm motility and morphology allows a rough estimation of semen quality to be made in order to select ejaculates for use in AI. Newer techniques,...

Author(s)
Waberski, D.; Petrounkina, A.; Weitze, K. F.; Töpfer-Petersen, E.
Citation
Tierarztliche Praxis. Ausgabe G, Grosstiere/Nutztiere, 1999, 27, 1, pp 1-7
Abstract

Author(s)
Waberski, D.; Weitze, K. F.
Citation
Praktische Tierarzt, 1996, 77, Sondernummer, pp 56-57
Abstract

Author(s)
Weitze, K. F.; Waberski, D.; Töpfer-Petersen, E.
Citation
Reproduction in Domestic Animals, 1993, 28, 8, pp 406-415
Abstract

An account is given of work carried out in the German Federal Republic on pig AI. For sows (11-23/group) in Lower Saxony, inseminated with semen diluted with 2 diluents based on bovine serum albumin (BSA), litter size averaged 10.5 and 10.0 resp. for sows inseminated with semen stored for 3 days,...

Author(s)
Weitze, K. F.
Citation
Tierzüchter, 1988, 40, 8, pp 349-351
Abstract

In 1984, in the German Federal Republic, 677 379 sows, representing 12.96% of the total sow population, were inseminated vs. 640 306 sows in 1983. The number of AI boars was 1087 in 1984 vs. 984 in 1983. An account is given of AI procedures, problems encountered with frozen semen, and the results...

Author(s)
Weitze, K. F.
Citation
Tierzüchter, 1985, 37, 11, pp 478-481
Abstract

288 ♀ rabbits were inseminated in Jan., Apr., July or Oct. with fresh or frozen semen from 6 ♂♂. There were no significant differences between months in semen characters, but ♀♀ inseminated in July and Oct. had significiantly lower CRs than those inseminated in Jan. or Apr. Litter size was not...

Author(s)
Weitze, K. F.; Rath, D.; Krause, D.
Citation
Zuchthygiene, 1983, 18, 2, pp 63-66
Abstract

Author(s)
Romeny, E.; Richter, L.; Weitze, K. F.
Citation
Deutsche Tierarztliche Wochenschrift, 1974, 81, No.21, pp 512-514
Abstract

20 ejaculates of 5 bulls, diluted with a basic medium of yolk-lactose, were prepared according to 5 methods and frozen at 4 different rates over dry ice. In the presence of other cryoprotective agents, the equilibration time of glycerol was markedly reduced. Both the additive cryoprotective...

Author(s)
Weitze, K. F.
Citation
VIIth International Congress on Animal Reproduction and Artificial Insemination, Munich, 1972, Summaries., 1972, pp 263