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Distribution of variance associated with measurement of post-thaw function in ram sperm.

Author(s) : EDWARD A. Y., WINDSOR D. P., PURVIS I. W., SANCHEZ PARTIDA L. G., MAXWELL W. M. C.

Type of article: Article

Summary

Post-thaw characteristics of ram semen frozen as pellets were assessed using biochemically (amidase activity) or motility-based (Hamilton Thorn Motility Analyzer) techniques. The total variation associated with each semen characteristic measured was partitioned between rams, ejaculates within rams, pellets within ejaculates and within pellets. A variety of variance distributions were observed for the characteristics measured. Of the 18 post-thaw characteristics examined, 10 had higher than 50% of variance distributed between within-ejaculate components. This has important implications for the way in which such measurements may be used in post-thaw semen analysis.

Details

  • Original title: Distribution of variance associated with measurement of post-thaw function in ram sperm.
  • Record ID : 1996-2560
  • Languages: English
  • Source: Reprod. Fertil. Dev. - vol. 7 - n. 1
  • Publication date: 1995
  • Document available for consultation in the library of the IIR headquarters only.

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