Sahraei, M., Pirmohammadi, R. and Payvastegan, S. (2014) “The effect of rosemary (Rosmarinus officinalis L.) essential oil on digestibility, ruminal fermentation and blood metabolites of Ghezel sheep fed barley-based diets”, Spanish Journal of Agricultural Research, 12(2), pp. 448-454. doi: 10.5424/sjar/2014122-4805.