Epidemiological Studies of Fascioliosis (Fasciola gigantica Infection) in Cattle

T he livestock population in Bangladesh is currently es- timated to comprise 26.828 million cattle, 0.78 million buffalo, 30.242 million goat and 1.221 million sheep (BBS, 2010) which plays an important role in the rural economy (Kamaruddin, 2003).Livestock sub-sector contributed approximately 6.5% to the GDP and 13% to the foreign currency earning (Alam, 1993).More than 20% of the rural populations of our country were engaged in this sector (Samad, 1996).The diseases are major setback to livestock industry.Parasitic diseases causes enormous economic losses of the livestock population all over the world and these losses are due to lowered fertility, reduced work capacity, involuntary culling, a reduction in food intake and lower weight gains, lower milk production and meat production, treatment costs…