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Bovine viral diarrhea is a major disease of cattle which is causing continuous economic losses to the cattle industry primarily due to decreased reproductive performance. Without doubt, direct contact between BVDV persistently infected, and susceptible animals is the most important transmission route of virus. All control programs which are in use in many countries of the world, mainly depend upon the detection of PI animals, eliminating them and preventing their return into the herds. Therefore, in this study diagnostic suitability of ear notch biopsies and serum samples were compared for...