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Abstract

For 131 sows inseminated with frozen semen in 1985, the CR was 39.7%, and the total number of piglets born per litter averaged 10.0, of which 9.5 were liveborn vs. 52.6%, 9.4 and 8.9 for 293 sows inseminated in 1984. An account is given of methods of freezing and thawing of semen, and of the...

Author(s)
Mudra, K.; Peter, W.; Wicke, I.
Citation
Tierzucht, 1988, 42, 7, pp 345-347
Abstract

In 1983, in the German Democratic Republic, >80% of sows were inseminated, and >1.8 million 1st inseminations were carried out. The CR of inseminated sows was 77.3%, and litter size at birth and weaning averaged 10.5 and 9.9 piglets resp. Semen from progeny-tested boars was used for 84.7% of 1st ...

Author(s)
Mudra, K.; Conrad, F.
Citation
Tierzucht, 1984, 38, 11, pp 508-511
Abstract

Data were obtained over 18 months from 72 000 first inseminations by 155 AI boars, and from the examination of 6543 ejaculates. The occurrence of different types of abnormal spermatozoa is tabulated. The mean value for all abnormal spermatozoa was 15 plus or minus 12%. 'Pathological' abnormalities...

Author(s)
Bach, S.; Neundorf, P.; Stemmler, K.-H.; Mudra, K.; Ueckert, H.
Citation
Monatshefte fur Veterinarmedizin, 1982, 37, 12, pp 463-467
Abstract

From examination of 6543 ejaculates from 155 boars used for artificial insemination (and each having inseminated about 465 gilts and sows), the proportion of abnormal spermatozoa was calculated, and also the conception rates associated with different proportions of abnormal spermatozoa. 3176 (62%)...

Author(s)
Stemmler, K.-H.; Bach, S.; Neundorf, P.; Mudra, K.; Ueckert, H.
Citation
Monatshefte fur Veterinarmedizin, 1982, 37, 12, pp 467-470
Abstract

A method is described whereby semen is first diluted in a glucose-chelate-citrate medium before storage in portions containing the required number of spermatozoa/insemination dose. Immediately before insemination, the semen is diluted a 2nd time, in IVT medium. When 207 first inseminations were...

Author(s)
Mudra, K.; Conrad, F.
Citation
Tagungsbericht der Akademie der Landwirtschaftswissenschaften der DDR, 1978, No. 156, pp 91-97
Abstract

The quality of semen produced by boars was compared before and after the operation. Ejaculation volume, spermatozoa concentration and number, and pH were studied. The operation, a simple procedure, had no adverse effects on sexual behaviour or spermatogenesis, in fact an increase in spermatozoa...

Author(s)
Sajonski, H.; Dietz, O.; Mudra, K.
Citation
Monatshefte fur Veterinarmedizin, 1976, 31, 9/10, pp 374-376
Abstract

Following the work described in Pt. 1 [see ABA 43, 462] and 2, a series of 8 tests were carried out using 196 sows. In test 1 (control), the sperm-rich fraction was diluted 1:2 with glycerol-glucose-egg yolk, and aliquots of 1.00 ml diluted semen were frozen as pellets on dry ice. Sows were...

Author(s)
Schmidt, D.; Peter, W.; Mudra, K.; Kunze, C.
Citation
Archiv für Tierzucht, 1974, 17, 6, pp 335-343
Abstract

Details are given of AI techniques used in the German Democratic Republic. In 1971, 244 tested bulls provided semen for 2 129 000 first inseminations, representing 82.2% of the total number of 1st inseminations carried out.

Author(s)
Mudra, K.
Citation
Tierzucht, 1973, 27, 2, pp 65-67