Morphologic analysis of sperm from two neotropical primate species: comparisons between the squirrel monkeys Saimiri collinsi and Saimiri vanzolinii

Sperm morphometry can be applied to identify different animal groups and species and to evaluate sperm quality. Furthermore, knowledge on species-specific differences will help to enhance biological information, as well as to develop efficient reproductive technologies. The aims in the present study...

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Bibliographic Details
Published in:Zygote (Cambridge) 2017-04, Vol.25 (2), p.141-148
Main Authors: Sampaio, Wlaisa V., Oliveira, Karol G., Leão, Danuza L., Caldas-Bussiere, Maria C., Queiroz, Helder L., Paim, Fernanda P., Santos, Regiane R., Domingues, Sheyla F.S.
Format: Article
Language:English
Subjects:
Animals
Image Processing, Computer-Assisted
Male
Microscopy - methods
Phylogeny
Reproductive technologies
Saimiri
Saimiri - anatomy & histology
Saimiri - classification
Saimiri - physiology
Semen - physiology
Species Specificity
Sperm Motility - physiology
Spermatozoa - chemistry
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Summary:Sperm morphometry can be applied to identify different animal groups and species and to evaluate sperm quality. Furthermore, knowledge on species-specific differences will help to enhance biological information, as well as to develop efficient reproductive technologies. The aims in the present study were to describe sperm morphometry from the recently characterized species S. collinsi and S. vanzolinii, to verify if the morphometric sperm patterns are similar or different between both species, and to determine if the sperm morphometry is affected by the levels of sperm defects using the S. collinsi as a model. Semen was collected from S. collinsi (n = 10) and S. vanzolinii (n = 2) monkeys, and sperm was submitted to morphological analysis. From the 10 samples from S. collinsi, five presented sperm of poor quality and two subgroups were formed for this species, i.e. high and poor quality sperm. Data on sperm motility and vigour were analysed, as well morphometric parameters on sperm head and tail. It was observed the normal morphometry was correlated with high quality sperm. Poor quality sperm presented smaller and 7% more ellipticity in their head, when compared with high quality sperm. Sperm from S. vanzolinii presented larger head than those from S. collinsi, but tail lengths were similar. Sperm morphometry can be used as a complementary tool to predict sperm motility and vigour for the S. collinsi species, and S. collinsi appear as a suitable model for S. vanzolinii.
ISSN:0967-1994
1469-8730
DOI:10.1017/S0967199416000411