The predictive value of routine semen evaluation and IVF technology for determining relative boar fertility

Theriogenology
A Ruiz-SanchezG R Foxcroft

Abstract

Practical techniques for assessing semen quality in order to predict male fertility are still needed. The principal objective of this experiment was to evaluate routine laboratory evaluation and in vitro fertilization (IVF) techniques as predictors of relative boar fertility using a low-dose AI protocol. Nine boars were evaluated during a 6.5+/-1 mo period, beginning at 29-32 wk of age. Ejaculates were evaluated for motility, morphology and concentration, diluted to 1.5 billion sperm in 50 mL extender, and used to breed 50+/-5 gilts over the same period. On nine occasions, a specific aliquot of the ejaculate's first sperm-rich fraction was evaluated using IVF procedures. Boars differed (P<0.001) consistently for pregnancy rate (from 73 to 98%), farrowing rate (71-98%) and total born (8.8-12.0). Routine semen evaluation and IVF parameters that presented significant differences between boars, but no differences in time and no boar by time interaction, were used to correlate in vivo fertility. A multiple regression model based on routine semen evaluation parameters accounted for up to 27 and 22% of the variation of fertility index and total piglets born, respectively, whereas male pronuclear formation rate was the IVF variable tha...Continue Reading

References

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Citations

Jun 19, 2013·Animal Reproduction Science·M SchulzeM Reissmann
Mar 17, 2010·Animal Reproduction Science·Marc YesteSergi Bonet
Sep 9, 2008·Theriogenology·G R FoxcroftW T Dixon
Feb 17, 2007·Animal Reproduction Science·E D CollinsD J Miller
Sep 9, 2011·Reproduction in Domestic Animals = Zuchthygiene·M K DyckW T Dixon
Jul 16, 2015·Reproduction in Domestic Animals = Zuchthygiene·J RocaA Bolarin
Jul 16, 2015·Reproduction in Domestic Animals = Zuchthygiene·M JungM Schulze
Jul 16, 2015·Reproduction in Domestic Animals = Zuchthygiene·F P BortolozzoI Wentz
May 29, 2015·PloS One·Mahmoud Salah El-TarabanyTamer Abdelhamid
May 10, 2017·Molecular Reproduction and Development·Jean M Feugang
Aug 25, 2017·Zygote : the Biology of Gametes and Early Embryos·Barbora KulíkováPeter Chrenek
May 29, 2018·Animal Science Journal = Nihon Chikusan Gakkaihō·Nguyen Viet LinhKazuhiro Kikuchi
Jan 20, 2021·Tropical Animal Health and Production·Rafael Suárez-MesaIang Rondón-Barragán
Jul 10, 2019·Theriogenology·Xavier DruartSimon P de Graaf

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