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Abstract

The first semen production of 29 young genomic Holstein bulls was analyzed in a continuous spermatological screening. Bulls were housed under identical conditions at the RBB AI stud in Brandenburg, Germany. With most of the bulls a production of high quality frozen semen was possible from an age of ...

Author(s)
Osmers, J. H.; Herrmann, C.
Publisher
Eugen Ulmer KG, Stuttgart, Germany
Citation
Züchtungskunde, 2017, 89, 1, pp 9-21
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

4505 cows were inseminated with semen from Normande, French Holstein or German Holstein bulls, diluted with Biociphos diluent (in which egg yolk is replaced by soya milk and lecithin), or with Tris or laiciphos diluents. Sperm motility was significantly higher for up to 24 h after dilution for...

Author(s)
Müller-Schlösser, F.
Citation
Tierzüchter, 1995, No. 8, pp 30-31
Abstract

The effects of age, season and breed on sperm production and differences between 1st and 2nd ejaculates were studied in 43 bucks over a 10-year period. There was a highly significant difference in ejaculate volume between younger and older bucks (0.71 vs. 0.96 ml). Ejaculate volume was higher in...

Author(s)
Summermatter, P.; Fuschini, E.
Citation
Reproduction in Domestic Animals, 1995, 30, 3, pp 129-132
Abstract

In 1974 and 1975, semen was collected twice weekly during July and Aug. from 7 Hafling and 6 Noric stallions. For the 2 breeds resp., ejaculate volume averaged 45.0 and 67.7 ml, sperm concentration 314.5 X 103 and 338.5 X 103/mm3, forward motility 68 and 66%, and proportion of abnormal spermatozoa...

Author(s)
Schorner, G.; Leeb, M.
Citation
Wiener Tierarztliche Monatsschrift, 1977, 64, 3, pp 91-93
Abstract

LITERATURE is reviewed. According to the author's own studies there is no correlation between the vaginal smears and the sexual stage. The microscopical pictures of vaginal smears did not give any evidence as to the time of onset of oestrus in 8 Karakul ewes as studied in over 650 preparations. 150 ...

Author(s)
HÖCKER, U.
Citation
Kuhn-Archiv, 1938, 47, pp 27-77