Fertility test for ram semen preserved at ambient temperatures by discontinuous flow dialysis.

The effect of two insemination doses (250 vs 500 x 10(6) spermatozoa) and three storage periods (0,1 or 2d) on the fertility of ram semen preserved at ambient temperatures by discontinuous flow dialysis were investigated in sheep (n=54). The 21-d nonreturn rates were 55.6, 44.