Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams

This study was conducted on 10 crossbred rams consisted of 5 ArkharMerino×Moghani (AM×MG) and 5 Baluchi×Moghani (BL×MG), to analyze correlation between semen characteristics and libido activity. The semen samples were evaluated for semen volume, total sperm per ejaculate (TSE), spermatozoa concentra...

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Main Authors: Ali A.R. Rahimi, Gholamali Moghaddam, Mohamad M. Pourseif
Format: Article
Language:English
Published: Taylor & Francis Group 2012-10-01
Series:Italian Journal of Animal Science
Subjects:
Online Access:http://www.aspajournal.it/index.php/ijas/article/view/2462
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spelling doaj-ec238fadf86242d09af76392622eaee72020-11-25T02:43:26ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2012-10-01114e66e6610.4081/ijas.2012.e66Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani ramsAli A.R. RahimiGholamali MoghaddamMohamad M. PourseifThis study was conducted on 10 crossbred rams consisted of 5 ArkharMerino×Moghani (AM×MG) and 5 Baluchi×Moghani (BL×MG), to analyze correlation between semen characteristics and libido activity. The semen samples were evaluated for semen volume, total sperm per ejaculate (TSE), spermatozoa concentration (SC), color, wave motion, spermatozoa progressive motility, percentage of live and abnormal spermatozoa, pH, rate of metabolic activity of spermatozoa and semen index. The libido of rams was measured by two indices including reaction time (RT) and refractory period (RP). While RT only had a negative and significant correlation with semen volume (r = -0.15, P=0.04), but RP had a significant correlation with seminal traits except for TSE. Moreover, libido test scores between two genetic groups did not have a significant difference (P<0.05). Considering the observed significant correlation between RP and semen characteristics, we suggest that a reliable monitoring with the aim of detecting rams of poor semen quality and libido seems worth making an effort for the future of the herd. In summary, the reported correlation between libido and seminal traits will confirm the importance of simultaneous selection for both libido and semen quality in the herd. Finally, the importance of performing an individual evaluation of semen and libido for each male and for using a ram in breeding programs is highlighted, due to the existence of differences among rams as well as a low correlation between semen characteristics and libido indices.http://www.aspajournal.it/index.php/ijas/article/view/2462Crossbreed ram, Reaction time, Refractory period, Semen traits, Spermatozoa
collection DOAJ
language English
format Article
sources DOAJ
author Ali A.R. Rahimi
Gholamali Moghaddam
Mohamad M. Pourseif
spellingShingle Ali A.R. Rahimi
Gholamali Moghaddam
Mohamad M. Pourseif
Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
Italian Journal of Animal Science
Crossbreed ram, Reaction time, Refractory period, Semen traits, Spermatozoa
author_facet Ali A.R. Rahimi
Gholamali Moghaddam
Mohamad M. Pourseif
author_sort Ali A.R. Rahimi
title Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
title_short Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
title_full Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
title_fullStr Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
title_full_unstemmed Study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in Arkharmerino×Moghani and Baluchi×Moghani rams
title_sort study of correlation between reaction time and refractory period (as indices of libido) with semen characteristics in arkharmerino×moghani and baluchi×moghani rams
publisher Taylor & Francis Group
series Italian Journal of Animal Science
issn 1594-4077
1828-051X
publishDate 2012-10-01
description This study was conducted on 10 crossbred rams consisted of 5 ArkharMerino×Moghani (AM×MG) and 5 Baluchi×Moghani (BL×MG), to analyze correlation between semen characteristics and libido activity. The semen samples were evaluated for semen volume, total sperm per ejaculate (TSE), spermatozoa concentration (SC), color, wave motion, spermatozoa progressive motility, percentage of live and abnormal spermatozoa, pH, rate of metabolic activity of spermatozoa and semen index. The libido of rams was measured by two indices including reaction time (RT) and refractory period (RP). While RT only had a negative and significant correlation with semen volume (r = -0.15, P=0.04), but RP had a significant correlation with seminal traits except for TSE. Moreover, libido test scores between two genetic groups did not have a significant difference (P<0.05). Considering the observed significant correlation between RP and semen characteristics, we suggest that a reliable monitoring with the aim of detecting rams of poor semen quality and libido seems worth making an effort for the future of the herd. In summary, the reported correlation between libido and seminal traits will confirm the importance of simultaneous selection for both libido and semen quality in the herd. Finally, the importance of performing an individual evaluation of semen and libido for each male and for using a ram in breeding programs is highlighted, due to the existence of differences among rams as well as a low correlation between semen characteristics and libido indices.
topic Crossbreed ram, Reaction time, Refractory period, Semen traits, Spermatozoa
url http://www.aspajournal.it/index.php/ijas/article/view/2462
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