During what in Ireland was termed "black 47", 9.992 calves were exported to England, an increase of 33% from the previous year.
In the twelve months following the second failure of the potato crop, 4,000 horses and ponies were exported.. The export of livestock to Britain increased during the famine. The export of bacon and ham increased. In total, over three million animals were exported from Ireland between 1845-50, more than the number of people who emigrated during the famine years.
Dr Christine Kinealy states that almost 4,000 vessels carried food from Ireland to the ports of Bristol, Glasgow Liverpool and London during 1847, when 400,00 Irish men, women and children died of starvation and related diseases.

The food was shipped, under guard,. from the most famine-stricken parts of Ireland, Ballina, Ballyshannon, Bantry, Dingle, Kilrush, Limerick,Sligo, Tralee, and Westport.
Bad roads didn`t hinder the trek to these ports.

Dr David Irvine has his contemporaries on this Thread regarding denying Britain`s role in the great hunger in Ireland.