Title
Motility and recovery of alpaca (Vicugna pacos) spermatozoa after centrifugation in a density gradient solution
Date Issued
01 January 2019
Access level
metadata only access
Resource Type
journal article
Author(s)
Fumuso F.G.
Asparrin M.
Asparrin-Del Carpio M.
Jara C.W.
Youngs C.R.
Vivanco H.W.
Publisher(s)
Shiraz University
Abstract
Background: One of the factors limiting successful processing of alpaca (Vicugna pacos) semen is the viscosity of seminal plasma. The viscous nature of the collected ejaculate has hindered sperm cryopreservation as well as artificial insemination (AI) under field conditions. Aims: The objective of this investigation was to evaluate recovery, motility, and plasma membrane integrity of alpaca spermatozoa after centrifugation in one of two different solutions at one of three different combinations of speed and time. Methods: A total of 24 ejaculates was recovered from seven reproductively sound Huacaya males using a modified artificial vagina (AV) after training the animals for semen collection. A 2 × 3 factorial treatment arrangement was utilized for this study. Ejaculates were divided into fractions for centrifugation in one of two solutions (Tris extender or PureSperm®80 density gradient solution) at one of three combinations of speed and time (492 × g for 15 min, 1968 × g for 10 min, or 4448 × g for 7 min). The experiment was replicated eight times. Results: Analysis revealed that centrifugation at 4448 × g for 7 min in PureSperm®80 provided a high recovery rate of spermatozoa with the highest sperm motility and functional integrity of plasma membrane post-centrifugation. Conclusion: Results suggest that adoption of this procedure (centrifugation at 4448 × g for 7 min in PureSperm®80) in the initial processing of alpaca ejaculates may enhance subsequent ability to use semen for AI and other assisted reproductive biotechnologies in this species.
Start page
96
End page
104
Volume
20
Issue
2
Language
English
OCDE Knowledge area
Ciencia animal, Ciencia de productos lácteos
Subjects
Scopus EID
2-s2.0-85069471629
Source
Iranian Journal of Veterinary Research
ISSN of the container
17281997
Sources of information:
Directorio de Producción Científica
Scopus