Reproduction Abstracts

A recent study showed increase of pregnancy rates in donkey frozen semen with addition of seminal plasma post-thaw. The aim of the present study was to evaluate the effect of addition post-thaw of seminal plasma on donkey frozen semen quality. Five ejaculates from three donkeys were used. Semen was diluted (1:1) with a milk-based extender (Botu-Semen). The semen was frozen with Botu-Cryo extender in isothermal box in straws containing 100×106 of total sperm. Th...

One study showed increased fertilization in IVF when added seminal plasma of bulls with high fertility rates in semen of low fertile. The aim of the present study was to evaluate the difference of addition homologous and heterologous seminal on donkey frozen semen. Five ejaculates from two donkeys were used. Semen was diluted (1:1) with a milk-based extender (Botu-Semen). The semen was frozen with Botu-Cryo extender in isothermal box in straws containing 100×106</sup...

There are few studies with donkey semen in the literature. In horses, is related that no difference are in freezing semen using automated systems or Styrofoam box. The aim of the present study was evaluate donkey frozen semen quality in different freezing conditions. Five ejaculates from there donkeys were used. Semen was diluted (1:1) with a milk-based extender. The pellet was resuspended with Botucrio and the straws were packaged. The straws were kept in a refrigerator at 5 ...