Ben Salem I, Ben Salem H, Ben Saïd M S and Ben Younes A 2018: Effects of daily or alternate day administration of polyethylene glycol 4000 on feed intake, digestion and health status of male goats fed on kermes oak (Quercus coccifera L.) foliage. Livestock Research for Rural Development. Volume 30, Article #187. Retrieved , from http://www.lrrd.org/lrrd30/11/bensa30187.html