Chaudhari, N.F., Khasatiya, C.T., Patel, M.D., Dabas, V.S., Chaudhari, S.S., Patel, J.H., AND Tyagi, K.K.. " Comparative studies of certain stress markers and trace minerals in normal cyclic and anoestrus Surti buffaloes" Buffalo Bulletin [Online], Volume 37 Number 4 (26 December 2018)