Biochemical Profile of Milk of Buffalo (Bubalus bubalis), Cow (Bos taurus) and Goat (Capra hircus): Potential Candidates for Supporting the Growth of Leishmania donovani Promastigotes in Culture Medium as Alternative to Fetal Bovine Serum (FBS). J Buf Sci. 2012;1(2). doi:10.6000/1927-520X.2012.01.02.07