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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...

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

In 1973, >90% of all cows in the German Democratic Republic were inseminated, mainly with semen from progeny-tested bulls. The insemination of 659 400 sows, representing 50.1% of the total sow population, resulted in a CR of 72% and an av. litter size of 9.9 piglets; 48.8% of the sows were...

Peter, W.
Tierzucht, 1974, 28, 9, pp 418-422