Abstract

TORRES, P. et al. Analysis of commercial extenders for porcine semen refrigerated for 4 days: preliminary results. Arch. zootec. [online]. 2014, vol.63, n.243, pp.547-550. ISSN 1885-4494.  https://dx.doi.org/10.4321/S0004-05922014000300015.

The use of cold preserved semen is still a limiting factor in artificial insemination, because of the random response of boar semen to temperatures below 16 ^oC, even between ejaculates from the same male. The aim of this work was to analyze and rank three commercial (long and medium term) boar semen extenders (Androstar Plus^®, MRA^® y MIII^®), based on their capability to preserve refrigerated semen for four days analyzing: viability, membrane functionality acrosome integrity and motility. Eleven ejaculates were assessed. There were not differences (p>0.05) between extenders for any of the parameters studied, evidencing a similar preservation capability in a four-day period.

Keywords : Artificial insemination.

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