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Abstract

Artificial insemination (AI) with cooled stallion semen has increased markedly during the last decades in all countries, but fertility is often lower than when fresh semen or natural mating is used. The objective of this study was to examine field data (1634, cycles 523 Standardbred (SB) mares, 575 ...

Author(s)
Kareskoski, M.; Venhoranta, H.; Virtala, A. M.; Katila, T.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2019, 127, pp 7-14
Abstract

To increase the efficiency of equine semen, it could be useful to split the artificial insemination dose and refreeze the redundant spermatozoa. In experiment I, semen of 10 sires of the Hanoverian breed, with poor and good semen freezability, was collected by artificial vagina, centrifuged,...

Author(s)
Sielhorst, J.; Hagen, C.; Behrendt, D.; Schuette, B.; Burger, D.; Martinsson, G.; Sieme, H.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2016, 40, pp 56-61
Abstract

In our experience, the testicular dysfunction that develops in aged stallions is typically progressive, contributing to a gradual deterioration in sperm output and quality over 2-4 years. As the ability to produce sufficient numbers of normal sperm in ejaculates declines, so do pregnancy rates...

Author(s)
Blanchard, T. L.; Varner, D. D.; Love, C. C.; Brinsko, S. P.; Morehead, J. P.
Publisher
Elsevier, New York, USA
Citation
Journal of Equine Veterinary Science, 2012, 32, 8, pp 430-435
Abstract

AKINS, E. L., LTJDWICK, T. M., RICKARD, H. E., RADER, E. R., and ETGEN, W. M. Association of certain type evaluations and type scores of first-lactation Holstein females: 748. ALMQTJIST, J. O., AMANN, R. P., and O'DELL, W. T. Sperm reserves of dairy bulls as determined by depletion trials and...

Citation
Journal of Dairy Science, 1958, 41, pp 701-751

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