Feeding value of different plant functional types of oak mediterranean ecossystems
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The aim of the study was to assess the seasonal variation of Crude protein (CP) and In vitro
organic matter digestibility (IVOMD) of key plant functional types (PFT‟s) present in oak
Mediterranean ecosystems of the North of Portugal. The PFT‟s were legume, spiny and
aromatic for shrubs and sclerophyllous, deciduous and coniferous for trees. PFT‟s varied in
crude protein (CP: 4.16- 15.87% DM) and in digestibility (IVOMD: 34.48-63.36%, p<0.001).
Legume showed the highest CP and the IVOMD, coniferous showed the lowest CP content and
aromatic showed the lowest value of IVOMD. In terms of the capacity of these PFT‟s to
suppress the protein needs of livestock animals considering goats of 45 Kg body weight in dry
periods (summer and autumn), the coniferous group alone can‟t cover the needs for
maintenance. In the case of late pregnancy, only legume and deciduous and spiny can cover it.
