During this period the economic activites related with the management of animal resources tend to centre to the livestock. The registred tendencies in this chronologies talks about a specialized stock breeding; this one is not centre to a concret specy. It is centre to the products that are available to be obtained from the livestock as a whole. Cattle, pig, sheep and goat become the main exploited animals, although their representation is not homogeneus in all sites. An intensified and specialized exploitation of the livestock, made some changes to the size and morphology of the animals. During this period, these changes clearly appear at the archaeologycal record, been noted that sheeps, cattles and pigs reduced their size more than preceding chronologies.