The study was conducted to evaluate the effect of the addition of Rosmarinus officinalis or Salvia officinalis dried leaves on the in vitro dry matter digestibility of barley straw. Barley straw samples (0.5 g control) or (0.4 g of barley straw + 0.1 g of R. officinalis or S. officinalis dried leaves) were incubated with sheep rumen liquid
for 12 hours and 24 hours. Dry matter digestibility of barley straw was 21.7% after 12 hours and 43.62% after 24 hours of incubation without additives. The addition of the aromatic plants did not affect the dry matter digestibility of barley straw after 12 hours of incubation (P>0.05). Dry matter digestibility of barley straw was reduced with the addition of the aromatic plants after 24 hours of incubation; the inhibition was significant with R. officinalis (P>0.05). The addition of R. officinalis or S. officinalis dried leaves inhibits the dry matter digestibility of barley straw in vitro.Istraživanje je provedeno radi procjene djelovanja dodatka suhih listova biljaka Rusmarinus officinalis ili Salvia officinalis na in vitro probavljivost suhe tvari slame ječma. Uzorci slame ječma (0,5 g kontrola) ili (0,4 g slame ječma + 0,1 g suhih listova R. officinalis ili S. officinalis) inkubirani su s tekućinom iz buraga ovce 12 i 24 sata. Probavljivost suhe tvari slame ječma bila je 21,7% nakon 12 sati i 43,62% nakon 24 sata inkubacije bez dodataka. Dodatak aromatičnih biljaka nije djelovao na probavljivost suhe tvari slame ječma nakon 12 sati inkubacije (p>0,05). Probavljivost suhe tvari slame ječma smanjena je dodatkom aromatičnog bilja nakon 24 sata inkubacije; smanjenje je bilo značajno s R.officinalis (0,005). Dodatak suhih listova R.officinalis ili S.officinalis koči in vitro probavljivost suhe tvari slame ječma
