Searchable, peer-reviewed, open-access proceedings from bioscience and biomedical conferences

bp0017cpr19 | (1) | CPR2005

Strategies to improve the fertility of frozen-thawed boar semen for artificial insemination

Roca J. , Rodriguez-Martinez H. , Vazquez J.M. , Bolarin A. , Hernandez M. , Saravia F. , Wallgren M. , Martinez E.A.

Although cryopreservation of boar semen for artificial insemination (Al) was developed 35 years ago, cryopreservation conditions and Al strategies are still considered sub-optimal. Al with excessive numbers of frozenthawed sperm (5-6 x 109 cells), still does not achieve fertility levels similar to Al using liquid semen because of reduced sperm survival. Frozenthawed (FT) spermatozoa have therefore not been the preferred option for commercial breeding programme...

bp0018cpr1 | Physiological Roles of The Boar Ejaculate | CPR2009

The physiological roles of the boar ejaculate

Rodriguez-Martinez H. , Kvist U. , Saravia F. , Wallgren M. , Johannissono A. , Sanz L. , Pena F.J. , Martinez E.A. , Roca J. , Vazquez J.M. , Calvete J.J.

During ejaculation in the boar, sperm cohorts emitted in epididymal cauda fluid are sequentially exposed and resuspended in different mixtures of accessory sex gland secretion. This paper reviews the relevance of such unevenly composed fractions of seminal plasma (SP) in vivo on sperm transport and sperm function and how this knowledge could benefit boar semen processing for artificial insemination (Al). The firstly ejaculated spermatozoa (first 10 ml of the spe...