Table 1: Hearing and age statistics for the ferrets with early hearing loss induced by ototoxic lesion (OT); all animals were male. The age of hearing onset in ferrets is ~32 days postnatally, and auditory critical period closure for A1 is 80 days [16].

ID no.WeightAge at OT lesionABR hear thresholdAge at recordingImpairment durationBDA volume

DJF 11.7 kg49 days65 dB SPL148 days99 days0.5 μL
DJF 32.3 kg49 days65 dB SPL182 days133 days0.5 μL
DJF 41.9 kg49 days85 dB SPL190 days141 days0.5 μL