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Abstract

The most efficient way to shift the sex ratio of offspring is to select spermatozoa according to the sex chromosomes. The difference in their DNA content can be determined by flow cytometry to produce populations of either sex at high accuracy. As the method is based on single cell identification,...

Author(s)
Klinc, P.; Rath, D.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2005, 77, 2/3, pp 218-229
Abstract

Artificial insemination is the key factor which determines breeding structures for farm animals. In the case of poultry, breeding exchange has major advantages as day-old chicks and hatching eggs can be shipped anywhere in the world. The competitive position of a breeding society or a breeding...

Author(s)
Preisinger, R.
Publisher
Verlag Eugen Ulmer GmbH, Stuttgart, Germany
Citation
Züchtungskunde, 2004, 76, 6, pp 395-402
Abstract

An account is given of the populations of herdbook animals, AI and performance and progeny testing of pigs, goats and sheep in Switzerland in 1993, and details are given of inherited abnormalities, reproductive performance and research.

Citation
Kleinviehzumlaut˜chter, 1994, 42, 7, pp 383-420
Abstract

An account is given of recent developments in the artificial insemination of cows, sow and ewes in the former German Democratic Republic. The reduction in the number of cattle AI stations from 28 to 8 and that of pig AI stations from 19 to 12 has led to new practices in semen transport, and the...

Author(s)
Peter, W.
Citation
Neue Landwirtschaft, 1992, No. 1, pp 65-67
Abstract

Author(s)
Hofer, F.; Bauer, K.; Gorlach, A.; Hahn, R.; Zoder, H.-F.
Citation
Tierarztliche Umschau, 1981, 36, 12, pp 858-862
Abstract

Author(s)
Hofer, F.; Bauer, K.; Gorlach, A.; Hahn, R.; Zoder, H.-F.
Citation
Tierarztliche Umschau, 1981, 36, 7, pp 470-472, 477
Abstract

From 1970 to 1980 in the German Democratic Republic, the number of 1st inseminations in cattle increased from 2 556 700 to 2 691 860, the proportion of progeny tested bulls from 78.3 to 90.3%, and the number of semen doses produced annually per tested bull from 13 606 to 22 682. In 1980, the CR to...

Author(s)
Baum, N.; Peter, W.
Citation
Monatshefte fur Veterinarmedizin, 1981, 36, 17, pp 641-645
Abstract

The colloquium, which was the 5th meeting of the Working Group on Reproduction and Reproductive Disorders of the German Veterinary Association, was arranged in collaboration with the German Association of Animal Breeding, the German Association for the Study of Fertility and Sterility, and the...

Citation
Zuchthygiene, 1980, 15, 2, pp 67-96
Abstract

In 1978, in the German Democratic Republic, 99.9% of all cows were inseminated v 37.9% in 1955. Progeny-tested bulls were used for 92.1% of all inseminations. Annual yields of bull dams averaged 6792 kg milk with 4.68% and 318 kg fat. For German Improved Landrace pigs, daily gains and food...

Author(s)
Baum, N.
Citation
Tierzucht, 1979, 33, 10, pp 439-443
Abstract

In the German Democratic Republic, the number of 1st inseminations in cattle increased from 43 250 (2.9% of females ) in 1950 to 2 647 900 (99.1%) in 1975. The proportion of gilts and sows inseminated increased from 10.6% in 1970 to 79.7% in 1975, when the CR averaged 74.2% and litter size 10.1....

Author(s)
Peter, W.
Citation
Tagungsbericht der Akademie der Landwirtschaftswissenschaften der DDR, 1978, No. 156, pp 17-26

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