nasal and faecal microbiota of heifers with and without subclinical Bovine respiratory disease
16S rRNA gene amplicon sequences associated with bovine nasal swabs and faecal samples collected from dairy replacement heifers with and with subclinical bovine respiratory disease. Initial disease was detected through the use of thoracic ultrasonography at weaning, and samples were collected. Additional scanning and sample collection occurred after initial disease detection and pasture turnout at 8 months old.