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Abstract

BONADONNA, T. La zootecnia dell'Italia Meridionale ed Insulare e la fecondazione artificiale. [Zootechnics in southern Italy and the islands and artificial insemination]: 23-32. MAROSFY, L. Osservazioni intorno alia raccolta di sperma equino. [Observations on semen collection from horses]: 33-35....

Publisher
Milano : A. Milesi e Figli.,
Citation
Fiera per lo Sviluppo Autarchico dell'Agricoltura Italiana, Foggia-25-30 maggio 1940-XVIII. Atti della IIa Adunata Nazionale dei Veterinari per la Fecondazione Artificiale, 25-26 maggio 1940-XVIII., 1940, pp viii + 328 pp.
Abstract

WHEN the possibility of infertility in a cow due to infection has been eliminated, its breeding failure may be accounted for by any of a number of " deviations from normal physiology. " (1) Anoestrus may occur in autumn or winter-born heifers which had their 1st oestrous cycles in the summer and...

Author(s)
THOMSON, D. M.
Citation
Veterinary Record, 1950, 62, pp 541-542
Abstract

The oestrous cycle in 7, 800 cows varied from 20-21 days. In East-Flanders the conception rate was 61%. The most fertile of 16 bulls fertilized 86% of 111 cows, the least fertile 37% of 62 cows. The most fertile bulls fertilize nearly all healthy cows at the first mating. The season and feeding...

Author(s)
ANON.
Citation
Vlaams Diergeneeskundig Tijdschrift, 1951, 20, pp 33-46
Abstract

Experience at artificial insemination centres has shown that temporary infertility is not uncommon in bulls, but that methods whereby this can be overcome have yet to be determined. Fluctuations in the degree of fertility of the bull are of great importance, especially when the bull is mated to...

Author(s)
DALLING, T.; FOLLET, S. J.; SCORGIE, N. J.; CLARKE, C. H.; REES-MOGG, G.; BLEDISLOE.; VISCOUNT.; GOULD, G. N.; GARDNER, C. H.; LEA, H.; THOMSON, L.; STEVENS, H.; SMITH, G. R. W.; GARNER, F. H.; THOMPSON, F. N.; PORTER, J.
Publisher
Lond.,
Citation
Journal of the Farmers' Club, 1945, Part 6, pp 74-88 pp.

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