Studies on vaccination of pregnant cattle with st.RB51
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Brucellosis - It is very important zoontic disease that threatened both human health as well as animal wealth. - cause a serous economic losses due to : abortion loss of calves losses of milk production retained placenta and resultant infertility. great veterinary costs: Cost of testing vaccination quarantine . - The strategic plane used in Egypt for control of Brucellosis: 1. Female calves with strain 19. 2. Cattle with B.abortus RB51(rough vaccine). 3. Female Lambs and kids with Rev 1.
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