Abstract
Satisfactory conception rates of deep frozen boar spermatozoa were obtained, with insemination by way of the cervix, after thawing the deep frozen spermatozoa in boar seminal plasma, both in preliminary trials (Crabo & Einarsson 1971, Crabo et al. 1972 b) and in a large field trial (Einarsson et al. 1972). Fertility with pellet frozen boar spermatozoa, thawed without dilution, was reported by Graham et al. (1971 a, b) and Pursel & Johnson (1971).
Full Text
The Full Text of this article is available as a PDF (299.0 KB).
Footnotes
This investigation was supported by The Swedish Council for Forestry and Agricultural Research (A 3140/B 2380).
References
- Crabo B, Einarsson S. Fertility of deep frozen boar spermatozoa. Acta vet. scand. 1971;12:125–127. [PubMed] [Google Scholar]
- Crabo, B., K. I. Brown & E. F. Graham: J. Animal Sci. 1972 a. In press. [DOI] [PubMed]
- Crabo, B., S. Einarsson, A.-M. Lamm, O. Soosalu & S. Viring: Studies on the fertility of deep frozen boar spermatozoa. Proc. VIIth Int. Congr. Animal Reprod., München 1972 b. In press.
- Einarsson, S. & S. Viring: Distribution of frozen-thawed spermatozoa in the reproductive tract of gilts at different intervals after insemination. In manus, 1972. [DOI] [PubMed]
- Einarsson, S., S. Swensson & S. Viring: To be published 1972.
- Graham, E. F., A. H. J. Rajamannan, M. K. L. Schmehl, M. Maki-Laurila & R. E. Bower: Preliminary report on procedure and rationale for freezing boar semen. A. I. Dig. 1971 a, 19, no. 1, 12–14.
- Graham, E. F., A. H. J. Rajamannan, M. K. L. Schmehl, M. Maki-Laurila & R. E. Bower: Fertility studies with frozen boar spermatozoa. A. I. Dig. 1971 b, 19, no. 6, 6–8.
- Pursel V G, Johnson L A. Fertilizing capacity of frozen boar spermatozoa. J. Animal Sci. 1971;33:1162. [Google Scholar]
- Richter, L.& A. Liedicke: The use of deep-frozen sperm in pigs. I.P.V.S. 2nd Congr., Hannover 1972, 136.