Azarfar,A , , Satari,Y , , Kiani,A , , Khosarvinia,H , and Khaldari,M . "Effects of monensin supplementation alone or in combination with Methafix on milk production and composition, ruminal parameters and serum metabolites of lactating dairy cows", Iranian Journal of animal Science, 47, 2, 2016, 245-260. doi: 10.22059/ijas.2016.59030