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The experiment was done in the experimental farm NUPEARIDO belonging to the Federal University of Campina Grande, Patos, Paraiba, Brazil. The objective of the research was to evaluate the hematological parameters as well as the adaptation degree of goats F1 (Boer x SRD) created in semi-intensive regime and submitted at different levels of concentrated supplementation in the area or the semi-arid Paraibano. 24 animals were used F1 (Boer x SRD), distributed in a delineation entirely randomized with four levels supplementation (0.0; 0.5; 1.0; and 1.5% of PV in MS) and 6 repetitions. It was evaluated the environmental and hematological parameters aiming at to verify the degree of tolerance of the animals to the atmosphere. In the environmental parameters it was observed that there was significant effect of shifts (P < 0.05) with elevation of the temperatures during the afternoon. Already in the hematological parameters, there was not significant difference among the treatments. It was concluded that the different supplementation levels don’t exercise significant effect on the hematological parameters of goats resultants of the crossing of the Boer race and SRD in the area of the semi-arid Paraibano and that the animals demonstrate high capacity of tolerance to the climatic conditions of that area for they maintain the normal sanguine representatives in agreement with the patterns for the species.