ARTIFICIAL INSEMINATION
SOME AMAZING RESULTS The September issue of Animal Breeding Statistics discloses some amazing results in connection with artificial insemination of cattle and sheep in the U.S.S.R. during 1936. The average percentage of conceptions in 1935 was 96.9 for ewes, and 93.7 for cows. Higher figures, up to 100 per cent, for ewes, were obtained in several districts. The maximum number inseminated with the sperm
from a single sire was 15,000 ewes and 1090 cows. Eight thousand insemination centres for sheep and 1350 centres for cattle were in operation during the year, with an average, respectively, of 800 and 170 animals. The total number of ewes inseminated was 6,450,000. which is three times more than in 1935.
In certain districts 100 per cent, of the ewe stock was inseminated artificially; for example, in one district the entire population of 45,000 ewes was inseminated with the sperm of eight rams, whereas 900 rams would have been required for natural mating. For cattle the results are not quite so good; only 230,000 cows were inseminated, instead of 500,000 as planned. In one district, where over 80 per cent of the stock was inseminated artificially, 37 bulls served 8000 cows; formerly this district required 160 bulls, the majority of which' were of poor quality.
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Bibliographic details
Timaru Herald, Volume CXLIII, Issue 20930, 8 January 1938, Page 16
Word Count
212ARTIFICIAL INSEMINATION Timaru Herald, Volume CXLIII, Issue 20930, 8 January 1938, Page 16
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