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Abstract

In this short review of the development of A. I. in Britain since 1941 reference is made to the failure of some 25% of cows to become pregnant. This temporary failure has been called physiological sterility but the author prefers the term "idiogenic fertility", i. e. the idiogenic level of...

Author(s)
WALTON, A.
Publisher
Engl.,
Citation
Journal of the Royal Agricultural Society, 1958, 119, pp 63-69
Abstract

THE articles relate to a memorandum circularised by the authors, which gives a brief historical survey of the practical application of artificial insemination in U.S.S.R., Denmark, and U.S.A. The advantages of the method are reviewed with reference to dairy cattle and milk production in Great...

Author(s)
WALTON, A.; EDWARDS, J.
Citation
Farmers' Weekly, 1942, 16, 18, pp 17
Abstract

ELEVEN samples of semen from a Friesian bull in Cambridgeshire were collected with an artificial vagina, and after examination stored for 1 hr. at 10° C., packed in a thermos flask containing ice, and despatched by air to Holland where they were used for artificial insemination. The interval...

Author(s)
EDWARDS, J.; WALTON, A.; SIEBENGA, J.
Citation
Journal of Agricultural Science, 1938, 28, pp 503-508
Abstract

Certain characteristics of bull semen have been examined at four artificial insemination centres in England. One hundred and twenty-one samples of semen, comprising 168 ejaculates from seventy-six bulls of seven breeds, were examined. The semen from 119 tested samples was subsequently used to...

Author(s)
BISHOP, M. W. H.; CAMPBELL, R. C.; HANCOCK, J. L.; WALTON, A.
Citation
Journal of Agricultural Science, 1954, 44, pp 227-248