The “predictors of useable semen” used in most commercial AI centers provide a very
conservative estimate of the relative fertility of individual boars. Furthermore, the relatively …

Two fertility trials were undertaken to evaluate the relationship between boar semen quality
and fertility (conception rate and litter size) after on‐farm artificial insemination (AI). Trial 1 …

The effect of BSA, caffeine and calcium was studied on the penetration of pig oocytes by
frozen-thawed spermatozoa in a modified Tris-buffered medium (mTBM) without added …

Capacitation represents the final maturational steps that render mammalian sperm
competent to fertilize, either in vivo or in vitro. Capacitation is defined as a series of events …

Ten fertile feral mares and 6 domestic horses (4 fertile mares, 1 infertile mare, 1 gelding)
were immunized with heat-solubilized pig zonae pellucidae by 4 injections equivalent to …

This study was conducted to evaluate morphologic differences in pig oocytes matured in
vivo and in vitro, with particular reference to the potential relationship between oocyte …

Abstract Changes of protein tyrosine phosphorylation in ejaculated boar sperm incubated in
vitro were examined with the use of antiphosphotyrosine antibodies and immunoblotting …

In this study, different combinations of 2-step, discontinuous gradient centrifugation were
used, consisting of three different combinations of isotonic Percoll (45/60, 60/75 and …

The acrosome reaction is a fundamental event in the biology of the sperm and is a
prerequisite to fertilization of the egg. Members of the Rho family of GTPases and their …

It has been previously shown that progesterone can initiate the acrosome reaction (AR) of
capacitated human and hamster sperm in vivo. We report here that progesterone can initiate …