or [(a) were derived from parent flocks which have been kept in an establishment in which during the past 21 days prior to the collection of the eggs from which the day-old chicks were hatched a virus detection test with negative testing results for avian influenza has been carried out on a random sample of cloacal and tracheal/or oropharyngeal swabs taken from at least 60 poultry in the establishment or from all poultry if less than 60 are present in the establishment;]
or [(a) were derived from parent flocks which have been kept in an establishment in which during the past 21 days prior to the collection of the eggs a virus detection test with negative testing results for avian influenza has been carried out on a random sample of cloacal and tracheal/or oropharyngeal swabs taken from at least 60 poultry in the establishment or from all poultry if less than 60 are present in the establishment;]
The example sentences [G] were kindly provided by the Goethe Institute. Sentences marked by [EU] derived from DGT Multilingual Translation Memory. The European Commission retains ownership of the copyright in the original data.
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