Relationship between motility and spermatic speed over fertility of frozen semen from Murrah buffalo bulls
| Autor: | C. T. G. Alvares, P.C. Ferraz, A. J. M. Del Rei, C. C. Bartolomeu |
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| Rok vydání: | 2007 |
| Předmět: |
Semen fertility
040301 veterinary sciences media_common.quotation_subject 0402 animal and dairy science Motility Fertility Semen 04 agricultural and veterinary sciences Biology biology.organism_classification 040201 dairy & animal science 0403 veterinary science Andrology Murrah buffalo Sperm Motility Spermatic Speed Buffalo Herd Animal Science and Zoology lcsh:Animal culture Sperm motility lcsh:SF1-1100 media_common |
| Zdroj: | Italian Journal of Animal Science, Vol 6, Iss 2s, Pp 600-602 (2010) |
| ISSN: | 1828-051X |
| Popis: | In the present study samples of Murrah bull’s frozen semen, distributed in collaborate herd, were evaluated in order to evaluate the correlation between the fertility /motility and fertility/spermatic speed. Motility was evaluated subjectively and expressed in percentage and the spermatic speed was calculated taking into account a distance of 200μ and the time in seconds taking to cross this distance. Semen fertility was evaluated by the conception rate obtained at first service. Fertility coefficients of correlations were 0.315 and 0.432 for motility and spermatic speed, respectively. The results revealed that motility exam associated to spermatic speed allows predict the semen fertility with higher security. |
| Databáze: | OpenAIRE |
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