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Influence of seasonal differences on semen quality and subsequent embryo development of Belgian Blue bulls

(2020) THERIOGENOLOGY. 158. p.8-17
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Abstract
Belgian Blue bulls are more susceptible to high temperature and humidity index (THI) than most other cattle breeds. Here, we investigated whether high ambient temperature during summer affected semen quality and subsequent embryo development in Belgian Blue cattle. For this purpose, semen samples were collected from six healthy mature Belgian Blue bulls in March (Low THI group; THI between 30.6 and 56.4) and August 2016 (High THI group; maximum THI of 83.7 during meiotic and spermiogenic stages of spermatogenesis; 14-28 days prior to semen collection) respectively. Motility, morphology, acrosome integrity, chromatin condensation, viability, and reactive oxygen species production were assessed for frozen-thawed semen. Moreover, the efficiency of blastocyst production from the frozen-thawed semen samples of the two groups was determined in vitro. Blastocyst quality was determined by assessing inner cell mass ratio and apoptotic cell ratio. Fresh ejaculates showed a higher sperm concentration in low THI when compared to the high THI group (P <= 0.05), whereas semen volume, subjective motility, and total sperm output were not affected (P > 0.05). In frozen-thawed semen, total and progressive motility, viability, and straight-line velocity were lower in high THI compared to the low THI group (P < 0.05), while H2O2 concentration, aberrant chromatin condensation, and abnormal spermatozoa were higher in the high THI group (P < 0.05). Blastocyst rates were significantly higher when low THI samples were used (P < 0.05). Moreover, the total cell number and trophectoderm cells were significantly higher (P < 0.05) in blastocysts derived from low THI samples, whereas the apoptotic cell ratio was significantly higher (P < 0.01) in blastocysts derived from high THI spermatozoa. In summary, our data show that elevated ambient temperature and humidity during summer can decrease the quality of frozen-thawed spermatozoa in Belgian Blue bulls and also affect subsequent embryo development. Published by Elsevier Inc.
Keywords
SCROTAL HEAT-STRESS, LACTATING DAIRY-COWS, SPERM DNA-DAMAGE, OXIDATIVE STRESS, TESTICULAR TEMPERATURE, BOS-INDICUS, PARAMETERS, SPERMATOZOA, INFERTILITY, INSULATION, Blastocyst, Climate, Free radicals, Spermatozoa, Temperature

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MLA
Seifi-Jamadi, Afshin, et al. “Influence of Seasonal Differences on Semen Quality and Subsequent Embryo Development of Belgian Blue Bulls.” THERIOGENOLOGY, vol. 158, 2020, pp. 8–17, doi:10.1016/j.theriogenology.2020.08.037.
APA
Seifi-Jamadi, A., Zhandi, M., Kohram, H., Llamas Luceno, N., Leemans, B., Henrotte, E., … Van Soom, A. (2020). Influence of seasonal differences on semen quality and subsequent embryo development of Belgian Blue bulls. THERIOGENOLOGY, 158, 8–17. https://doi.org/10.1016/j.theriogenology.2020.08.037
Chicago author-date
Seifi-Jamadi, Afshin, Mahdi Zhandi, Hamid Kohram, Núria Llamas Luceno, Bart Leemans, Emilie Henrotte, Catherine Latour, Kristel Demeyere, Evelyne Meyer, and Ann Van Soom. 2020. “Influence of Seasonal Differences on Semen Quality and Subsequent Embryo Development of Belgian Blue Bulls.” THERIOGENOLOGY 158: 8–17. https://doi.org/10.1016/j.theriogenology.2020.08.037.
Chicago author-date (all authors)
Seifi-Jamadi, Afshin, Mahdi Zhandi, Hamid Kohram, Núria Llamas Luceno, Bart Leemans, Emilie Henrotte, Catherine Latour, Kristel Demeyere, Evelyne Meyer, and Ann Van Soom. 2020. “Influence of Seasonal Differences on Semen Quality and Subsequent Embryo Development of Belgian Blue Bulls.” THERIOGENOLOGY 158: 8–17. doi:10.1016/j.theriogenology.2020.08.037.
Vancouver
1.
Seifi-Jamadi A, Zhandi M, Kohram H, Llamas Luceno N, Leemans B, Henrotte E, et al. Influence of seasonal differences on semen quality and subsequent embryo development of Belgian Blue bulls. THERIOGENOLOGY. 2020;158:8–17.
IEEE
[1]
A. Seifi-Jamadi et al., “Influence of seasonal differences on semen quality and subsequent embryo development of Belgian Blue bulls,” THERIOGENOLOGY, vol. 158, pp. 8–17, 2020.
@article{8685270,
  abstract     = {{Belgian Blue bulls are more susceptible to high temperature and humidity index (THI) than most other cattle breeds. Here, we investigated whether high ambient temperature during summer affected semen quality and subsequent embryo development in Belgian Blue cattle. For this purpose, semen samples were collected from six healthy mature Belgian Blue bulls in March (Low THI group; THI between 30.6 and 56.4) and August 2016 (High THI group; maximum THI of 83.7 during meiotic and spermiogenic stages of spermatogenesis; 14-28 days prior to semen collection) respectively. Motility, morphology, acrosome integrity, chromatin condensation, viability, and reactive oxygen species production were assessed for frozen-thawed semen. Moreover, the efficiency of blastocyst production from the frozen-thawed semen samples of the two groups was determined in vitro. Blastocyst quality was determined by assessing inner cell mass ratio and apoptotic cell ratio. Fresh ejaculates showed a higher sperm concentration in low THI when compared to the high THI group (P <= 0.05), whereas semen volume, subjective motility, and total sperm output were not affected (P > 0.05). In frozen-thawed semen, total and progressive motility, viability, and straight-line velocity were lower in high THI compared to the low THI group (P < 0.05), while H2O2 concentration, aberrant chromatin condensation, and abnormal spermatozoa were higher in the high THI group (P < 0.05). Blastocyst rates were significantly higher when low THI samples were used (P < 0.05). Moreover, the total cell number and trophectoderm cells were significantly higher (P < 0.05) in blastocysts derived from low THI samples, whereas the apoptotic cell ratio was significantly higher (P < 0.01) in blastocysts derived from high THI spermatozoa. In summary, our data show that elevated ambient temperature and humidity during summer can decrease the quality of frozen-thawed spermatozoa in Belgian Blue bulls and also affect subsequent embryo development. Published by Elsevier Inc.}},
  author       = {{Seifi-Jamadi, Afshin and Zhandi, Mahdi and Kohram, Hamid and Llamas Luceno, Núria and Leemans, Bart and Henrotte, Emilie and Latour, Catherine and Demeyere, Kristel and Meyer, Evelyne and Van Soom, Ann}},
  issn         = {{0093-691X}},
  journal      = {{THERIOGENOLOGY}},
  keywords     = {{SCROTAL HEAT-STRESS,LACTATING DAIRY-COWS,SPERM DNA-DAMAGE,OXIDATIVE STRESS,TESTICULAR TEMPERATURE,BOS-INDICUS,PARAMETERS,SPERMATOZOA,INFERTILITY,INSULATION,Blastocyst,Climate,Free radicals,Spermatozoa,Temperature}},
  language     = {{eng}},
  pages        = {{8--17}},
  title        = {{Influence of seasonal differences on semen quality and subsequent embryo development of Belgian Blue bulls}},
  url          = {{http://doi.org/10.1016/j.theriogenology.2020.08.037}},
  volume       = {{158}},
  year         = {{2020}},
}

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