How long has it been since PRRS was first discovered?
Questions
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28-Jun-2018 In the mating/control unit we must ensure 41% correct
Random questions
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16-Apr-2014 The PCV2 becomes inactivated after pasteurization at 60 ºC for 24 h 34% correct
Easy questions
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Difficult questions
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10-Aug-2016 The needle-free vaccination devices: 29% correct