The aim of this study was investigation of various levels of vitamin E in Tris extender on semen characteristics of Ghezel rams in pre and post freezing conditions. Semen was collected from six healthy and mature rams with ...

The subject of this research was to evaluate the effect of adding different levels

(0, 2ml) essential oils of thyme (Thymus) and Mentha piperita (Carvacrol) on alfalfa

silage degradability by in vitro gas ...