Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system

In the present study, bull sperm in the first and second ejaculates were divided into subpopulations based on their motility characteristics using a cluster analysis of data from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4 Japanese black bulls. Data from 9,2...

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Autores principales: KANNO, Chihiro, SAKAMOTO, Kentaro Q., YANAGAWA, Yojiro, TAKAHASHI, Yoshiyuki, KATAGIRI, Seiji, NAGANO, Masashi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2017
Materias:
Theriogenology
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5573822/
https://www.ncbi.nlm.nih.gov/pubmed/28626150
http://dx.doi.org/10.1292/jvms.17-0012
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author KANNO, Chihiro
SAKAMOTO, Kentaro Q.
YANAGAWA, Yojiro
TAKAHASHI, Yoshiyuki
KATAGIRI, Seiji
NAGANO, Masashi
author_facet KANNO, Chihiro
SAKAMOTO, Kentaro Q.
YANAGAWA, Yojiro
TAKAHASHI, Yoshiyuki
KATAGIRI, Seiji
NAGANO, Masashi
author_sort KANNO, Chihiro
collection PubMed
description In the present study, bull sperm in the first and second ejaculates were divided into subpopulations based on their motility characteristics using a cluster analysis of data from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4 Japanese black bulls. Data from 9,228 motile sperm were classified into 4 clusters; 1) very rapid and progressively motile sperm, 2) rapid and circularly motile sperm with widely moving heads, 3) moderately motile sperm with heads moving frequently in a short length, and 4) poorly motile sperm. The percentage of cluster 1 varied between bulls. The first ejaculates had a higher proportion of cluster 2 and lower proportion of cluster 3 than the second ejaculates.
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spelling pubmed-55738222017-08-29 Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system KANNO, Chihiro SAKAMOTO, Kentaro Q. YANAGAWA, Yojiro TAKAHASHI, Yoshiyuki KATAGIRI, Seiji NAGANO, Masashi J Vet Med Sci Theriogenology In the present study, bull sperm in the first and second ejaculates were divided into subpopulations based on their motility characteristics using a cluster analysis of data from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4 Japanese black bulls. Data from 9,228 motile sperm were classified into 4 clusters; 1) very rapid and progressively motile sperm, 2) rapid and circularly motile sperm with widely moving heads, 3) moderately motile sperm with heads moving frequently in a short length, and 4) poorly motile sperm. The percentage of cluster 1 varied between bulls. The first ejaculates had a higher proportion of cluster 2 and lower proportion of cluster 3 than the second ejaculates. The Japanese Society of Veterinary Science 2017-06-18 2017-08 /pmc/articles/PMC5573822/ /pubmed/28626150 http://dx.doi.org/10.1292/jvms.17-0012 Text en ©2017 The Japanese Society of Veterinary Science This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Theriogenology
KANNO, Chihiro
SAKAMOTO, Kentaro Q.
YANAGAWA, Yojiro
TAKAHASHI, Yoshiyuki
KATAGIRI, Seiji
NAGANO, Masashi
Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title_full Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title_fullStr Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title_full_unstemmed Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title_short Comparison of sperm subpopulation structures in first and second ejaculated semen from Japanese black bulls by a cluster analysis of sperm motility evaluated by a CASA system
title_sort comparison of sperm subpopulation structures in first and second ejaculated semen from japanese black bulls by a cluster analysis of sperm motility evaluated by a casa system
topic Theriogenology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5573822/
https://www.ncbi.nlm.nih.gov/pubmed/28626150
http://dx.doi.org/10.1292/jvms.17-0012
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