How long has it been since PRRS was first discovered?
Questions
19-Jul-2018 Every 3.6 °F (± 2 °C) fluctuation in the fridge where the semen is kept reduces its lifetime by: 39% correct
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28-Jun-2018 In the mating/control unit we must ensure 39% correct
Random questions
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19-Aug-2015 If we use brewer's yeast in liquid feed, we must bear in mind that: 34% correct
Easy questions
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Difficult questions
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