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Effect of Osmolarity and Density of Colloid Formulations on the Outcome of SLC-Selection of Stallion Spermatozoa
Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden .
Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden .
Linköping University, Department of Clinical and Experimental Medicine, Developmental Biology. Linköping University, Faculty of Health Sciences. (Division of Reproduction, Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden)ORCID iD: 0000-0002-5194-2124
2011 (English)In: ISRN Veterinary Science, ISSN 2090-4452, E-ISSN 2090-4460, Vol. 2011, 128984Article in journal (Refereed) Published
Abstract [en]

The osmolarity and density of colloids used to prepare spermatozoa for assisted reproduction may affect sperm quality in the resultant preparation. In this study, two osmolarities of Androcoll-E for single-layer or density gradient centrifugation of stallion spermatozoa were compared: “normal” (320 mOsm) or “high” (345 mOsm). Mean yields for the two centrifugation techniques did not differ between treatments or osmolarities (single layer centrifugation:30.19±16.9×106 and 25.8±18.5×106 spermatozoa; density gradient centrifugation: 31.84±19.7×106 and 26.46±20.0×106 spermatozoa respectively for the two osmolarities). However, use of the high osmolarity colloid for single layer centrifugation increased the proportion of morphologically normal spermatozoa (𝑃<.05). Therefore, increasing the osmolarity of the colloid formulation may be beneficial for processing ejaculates containing a high proportion of abnormal spermatozoa by SLC. Reducing the density of the colloid used for the SLC substantially increased the yield of motile spermatozoa compared to the normal density colloid (mean ± SD: 72.6±28.9×106 versus 28.9±24.7×106), while also prolonging sperm survival by 24 hours compared to the uncentrifuged ejaculate. This increased yield may render Single Layer Centrifugation practical for use in the field.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2011. Vol. 2011, 128984
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Veterinary Science
Identifiers
URN: urn:nbn:se:liu:diva-75539DOI: 10.5402/2011/128984OAI: oai:DiVA.org:liu-75539DiVA: diva2:508086
Available from: 2012-03-07 Created: 2012-03-07 Last updated: 2017-12-07Bibliographically approved

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Rodriguez-Martinez, Heriberto

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