Buckinghamshire horse trader James Gray appeared at Folkestone Magistrates Court on 25 March to face five welfare charges related to horses he transported through Dover.
It is alleged that on 4 September and 17 October 2007 Gray, of Spindle Farm, Amersham, transported horses in an unsuitable lorry that did not have partitions and was not licensed to carry animals on long journeys.
He is also accused of failing to cooperate with a notice asking him to cease using the vehicle.
The charges are being brought by Kent County Council.
Gray has pleaded not guilty to all the charges and the trial has been adjourned until 27-28 May.