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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

Many attempts have been made to identify laboratory tests that are predictive of sperm fertility, both to improve the quality of stallion semen doses for artificial insemination (AI) and to identify potential breeding sires if no fertility data are available. Sperm quality at the stud is mostly...

Author(s)
Morrell, J. M.; Stuhtmann, G.; Meurling, S.; Lundgren, A.; Winblad, C.; Garcia, B. M.; Johannisson, A.
Publisher
Elsevier, New York, USA
Citation
Theriogenology, 2014, 81, 8, pp 1005-1011
Abstract

Frozen-thawed boar sperm (FTS) has reduced motility and viability compared to cooled semen. Motility of FTS is related to in vitro and in vivo fertility, but this effect has not been determined in relation to the timing of ovulation. To test the effect of variable FTS motility in a multiple-AI...

Author(s)
McNamara, K. A.; Knox, R. V.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2013, 91, 12, pp 5637-5645
Abstract

The good results obtained in the improvement of livestock in the U.S.S.R. by selection and inbreeding are briefly discussed. The possible danger of such a policy is pointed out and illustrated by the case of the Mazoev breed of sheep, which was noted for length of wool. Over concentration on this...

Author(s)
MILOVANOV, V. K.; SMIRNOV-UGRYUMOV, D. V.
Publisher
Moscow : SePkhozgiz,
Citation
Osemenenie sel'skokhozyaistvennykh zhivotnykh., 1944, pp 100 pp.

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