moved from main page History The practice conditioned the African captives for their new lot in life newly arrived African captives would have to be trained into the daily rigors that awaited them in the Americas This training was carried out on plantations in the Caribbean such as Jamaica Estimated mortality rates for this process vary from 7 to 50 with duration between one and four years Kiple K F The Caribbean Slave A Biological History p 65 Most slaves destined for island or South American plantations were likely to be put through this ordeal though slaves shipped directly to North America bypassed this process Jamaica held one of the most notorious of these camps Meltzer Milton Slavery A World History Da Capo Press 1993 The process of seasoning had a strong profit motive For example the average price of adult male slaves in Jamaica 1770s was approximately 52 higher than New Negroes Africans who came to a New World Burnard T and Morgan K The Dynamics of the Slave Market and Slave Purchasing Patterns in Jamaica 1655 1788 The William and Mary Quarterly Third Series Vol 58 No 1 New Perspectives on the Transatlantic Slave Trade Jan 2001 pp 205 228