BULL FERTILITY AND ITS RELATION WITH DENSITY GRADIENT SELECTED SPERM

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ALLOUCHE LYNDA; MADANI TOUFIK; MECHMECHE MOHAMED; CLEMENT LAETITIA; BOUCHEMAL ALLAOUA

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Journal: International Journal of Fertility & Sterility Year:2017 | Volume:11 | Issue:1 Page(s): 55-62

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Title

BULL FERTILITY AND ITS RELATION WITH DENSITY GRADIENT SELECTED SPERM

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Keywords

FROZEN SEMEN

FERTILITY

BULL

Abstract

Background: Sperm selection method is usually used to collect these cells for in vitroassisted reproduction. Few studies reported the relationship of in vivo FERTILITY and semen parameters after sperm selection; hence, the present study attempted to assess different semen parameters after post-thaw or sperm selection, using density gradient separation BoviPure®, to predict in vivo FERTILITY.Materials and Methods: In this experimental study, FROZEN SEMEN quality of four Montbeliarde BULLs were assessed after post-thaw (PT) or after sperm selection (SSp), using density gradient separation BoviPure®, to predict the FERTILITY rate in vivo. In addition to PT or SSp, semen was examined for concentration, motility, morphology abnormalities, viability, acrosome and plasma membrane integrities. FERTILITY was measured as non-return rates within 56 days after the first insemination (NRR) or as corrected NRR, expressed as CNRR, to the factors influencing FERTILITY using linear mixed model. Non-parametric Kruskal-Wallis test was performed to compare semen parameter variables. FERTILITY rates were compared using Chi-square test. Pearson correlation analysis was used to test the relationship between CNRR and semen parameters. Data was analysed using SPSS package program, version 21.0.Results: Most of the examined BULLs exhibited a high FERTILITY rate (3/4 BULLs, 62.1-81.8% for NRR or 67.2-98.5% for CNRR). FERTILITY rate, expressed as CNRR, was significantly related to semen parameters after SSp, but not after PT. Thus, CNRR was increased with decrease of total motility, progressive spermatozoa and abaxial implantation frequencies after SSp (r=-0.999, P=0.001; r=-0.990, P=0.010; r=-0.988, P= 0.012, respectively); while, CNRR was decreased with decrease of SSp immotile spermatozoa (r=+0.995, P=0.005), underlying that maximal limit of determined immotile spermatozoa is 47%.Conclusion: High frequencies of total and progressive motility spermatozoa, and abaxial implantation in gradient selected sperm appear to be not favorable for FERTILITY in vivo.

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APA: Copy

ALLOUCHE, LYNDA, MADANI, TOUFIK, MECHMECHE, MOHAMED, CLEMENT, LAETITIA, & BOUCHEMAL, ALLAOUA. (2017). BULL FERTILITY AND ITS RELATION WITH DENSITY GRADIENT SELECTED SPERM. INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY, 11(1), 55-62. SID. https://sid.ir/paper/305916/en

Vancouver: Copy

ALLOUCHE LYNDA, MADANI TOUFIK, MECHMECHE MOHAMED, CLEMENT LAETITIA, BOUCHEMAL ALLAOUA. BULL FERTILITY AND ITS RELATION WITH DENSITY GRADIENT SELECTED SPERM. INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY[Internet]. 2017;11(1):55-62. Available from: https://sid.ir/paper/305916/en

IEEE: Copy

LYNDA ALLOUCHE, TOUFIK MADANI, MOHAMED MECHMECHE, LAETITIA CLEMENT, and ALLAOUA BOUCHEMAL, “BULL FERTILITY AND ITS RELATION WITH DENSITY GRADIENT SELECTED SPERM,” INTERNATIONAL JOURNAL OF FERTILITY AND STERILITY, vol. 11, no. 1, pp. 55–62, 2017, [Online]. Available: https://sid.ir/paper/305916/en

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