Avalia o bromatol車gica de esp谷cies arb車reas e arbustivas de pastagens em tr那s munic赤pios do Estado de Pernambuco = Chemical composition of tree and bush species occurring in pastures of three locations in Pernambuco State

作者：Analia Carmem Silva de Almeida; Rinaldo Luiz Caraciolo Ferreira; Mercia Virginia Ferreira dos Santos; Jose Antnio Aleixo da Silva

来源：Acta Scientiarum - Animal Sciences, 2006.

• especies forrageiras arboreas
• especies forrageiras arbustivas
• semiarido
• zona da mata
• brush species
• tree species
• semi-arid
• coast region

A pesquisa foi realizada nos Campos Experimentais de Itamb谷, Caruaru e Serra Talhada, pertencentes 角 Empresa Pernambucana de Pesquisa Agropecu芍ria, e objetivou avaliar caracter赤sticas bromatol車gicas de esp谷cies arb車reas e arbustivas de pastagens. Para an芍lises bromatol車gicas foram coletadas, nas 谷pocas seca e chuvosa, amostras compostas de folhas e galhos com at谷 5,0 cm de diametro de esp谷cies arb車reas e arbustivas presentes em 芍reas de pastagens. Os teores m谷dios de MS das plantas foram de 38,89%, 48,27% e 55,20% nos Munic赤pios de Itamb谷, Caruaru e Serra Talhada, respectivamente. Para PB, observou-se valores de 15,87%, 14,09% e 10,19%, respectivamente. Os valores de FDN e de FDA foram de 52,37% e 37,63%, 46,33% e 30,33%, 50,25% e 35,07%, respectivamente. As esp谷cies, independente do local, apresentaram melhor composi o bromatol車gica no per赤odo chuvoso.Para utiliza o de esp谷cies em sistemas silvipastoris, al谷m da avalia o de caracter赤sticas qualitativas, devem-se considerar aspectos de facilidade de propaga o, adapta o 角s condi es edafoclim芍ticas, tipo de animal e objetivo do sistema de produ o animal. The research was conducted at the Experimental Fields of Itamb谷, Caruaru and Serra Talhada, owned by the Agricultural Research Companyof Pernambuco (IPA). The aim was to analyze the chemical characteristics of tree and bush species grown on pasture land. In each Experimental Station, data was collected from a random sampling, during the dry and rainy seasons. Samples consisted of leaves and branches up to 5.0 cm of diameter. The average MS concentrations were 38.89, 48.27 and 55.20%. As for PB, the values observed were 15.87, 14.09 and 10.19%. The NFD and ADF concentrations were 52.37 and 37.63, 46.33 and 30.33, 50.25 and 35.07%, for Itamb谷, Caruaru and Serra Talhada, respectively. The studied species, independent of the region, presented better chemistry composition during the rainy season. Thus, for an adequate selection of species in silvopastoral systems, besides the evaluation of qualitative characteristics, other aspects should also be taken into consideration such as propagation,adaptation to the soil and climate conditions, animal type and objective of the animal system production.