Seasonal variation of different seminal parameters of breeding buffalo bulls

This study evaluated seasonal variation in seminal parameters and post-thaw motility after cryopreservation in buffalo bulls. To conduct this study, five Nili Ravi buffalo bulls were placed at a private semen production unit, Al-Haiwan Sires, Sahiwal, under uniform nutritional and management condit...

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Main Author: Hasan Riaz
Format: Article
Language:English
Published: Universidad del Zulia 2023-11-01
Series:Revista Científica
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Online Access:https://www.produccioncientificaluz.org/index.php/cientifica/article/view/43444
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author Hasan Riaz
author_facet Hasan Riaz
author_sort Hasan Riaz
collection DOAJ
description This study evaluated seasonal variation in seminal parameters and post-thaw motility after cryopreservation in buffalo bulls. To conduct this study, five Nili Ravi buffalo bulls were placed at a private semen production unit, Al-Haiwan Sires, Sahiwal, under uniform nutritional and management conditions. Semen samples were taken twice a week from May 2019 to April 2020. A total of 389 ejaculates were collected with the help of a pre- warmed artificial vagina (42ºC) and then transferred to the semen evaluation room. Then, semen ejaculates were evaluated for physical characteristics, including ejaculatory volume, mass motility, individual sperm motility, sperm concentration, number of ejaculates, motility after dilution, and post-thaw motility. Post-thaw semen evaluation was carried out by Computer Assisted Sperm Analyzer (CASA) at the Theriogenology laboratory, UVAS Lahore. Climatic data was also collected from the Regional Meteorological Center, Sahiwal, during the study period. The seminal parameter data of Nili Ravi buffalo bull was analyzed using the analysis of variance in the SPSS 13.0 program. The results showed that season significantly (p<0.05) affected different seminal parameters, as no. of ejaculates/bull, motility after dilution, and number of doses were significantly higher in autumn. In contrast, semen volume and individual motility were highest in spring. Interestingly, sperm concentration was highest in the dry summer compared to other seasons. The sperm motility parameters and motion characteristics of buffalo bulls after post-thaw revealed that total motility, progressive motility, and rapid motility were not affected by season. In contrast, VSL, VCL, and ALH were significantly higher in the spring season than others. In conclusion, it was found that breeding bulls exhibited a seasonal pattern as their seminal parameters were found best in the spring and autumn seasons; however, most post-thaw variables have no seasonal effect.
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spelling doaj-art-eba768582b37405e93544c2647e599f02025-02-03T15:37:02ZengUniversidad del ZuliaRevista Científica0798-22592521-97152023-11-0133Suplemento10.52973/rcfcv-wbc100Seasonal variation of different seminal parameters of breeding buffalo bullsHasan Riaz0Department of Biosciences, COMSATS University Islamabad, Sahiwal Campus, 57000, Pakistan This study evaluated seasonal variation in seminal parameters and post-thaw motility after cryopreservation in buffalo bulls. To conduct this study, five Nili Ravi buffalo bulls were placed at a private semen production unit, Al-Haiwan Sires, Sahiwal, under uniform nutritional and management conditions. Semen samples were taken twice a week from May 2019 to April 2020. A total of 389 ejaculates were collected with the help of a pre- warmed artificial vagina (42ºC) and then transferred to the semen evaluation room. Then, semen ejaculates were evaluated for physical characteristics, including ejaculatory volume, mass motility, individual sperm motility, sperm concentration, number of ejaculates, motility after dilution, and post-thaw motility. Post-thaw semen evaluation was carried out by Computer Assisted Sperm Analyzer (CASA) at the Theriogenology laboratory, UVAS Lahore. Climatic data was also collected from the Regional Meteorological Center, Sahiwal, during the study period. The seminal parameter data of Nili Ravi buffalo bull was analyzed using the analysis of variance in the SPSS 13.0 program. The results showed that season significantly (p<0.05) affected different seminal parameters, as no. of ejaculates/bull, motility after dilution, and number of doses were significantly higher in autumn. In contrast, semen volume and individual motility were highest in spring. Interestingly, sperm concentration was highest in the dry summer compared to other seasons. The sperm motility parameters and motion characteristics of buffalo bulls after post-thaw revealed that total motility, progressive motility, and rapid motility were not affected by season. In contrast, VSL, VCL, and ALH were significantly higher in the spring season than others. In conclusion, it was found that breeding bulls exhibited a seasonal pattern as their seminal parameters were found best in the spring and autumn seasons; however, most post-thaw variables have no seasonal effect. https://www.produccioncientificaluz.org/index.php/cientifica/article/view/43444buffaloEjaculatesCASApost thawcryopreservation
spellingShingle Hasan Riaz
Seasonal variation of different seminal parameters of breeding buffalo bulls
Revista Científica
buffalo
Ejaculates
CASA
post thaw
cryopreservation
title Seasonal variation of different seminal parameters of breeding buffalo bulls
title_full Seasonal variation of different seminal parameters of breeding buffalo bulls
title_fullStr Seasonal variation of different seminal parameters of breeding buffalo bulls
title_full_unstemmed Seasonal variation of different seminal parameters of breeding buffalo bulls
title_short Seasonal variation of different seminal parameters of breeding buffalo bulls
title_sort seasonal variation of different seminal parameters of breeding buffalo bulls
topic buffalo
Ejaculates
CASA
post thaw
cryopreservation
url https://www.produccioncientificaluz.org/index.php/cientifica/article/view/43444
work_keys_str_mv AT hasanriaz seasonalvariationofdifferentseminalparametersofbreedingbuffalobulls