Atributo químico-bromatológico do Pilosocereus gounellei (A. Weber ex K. Schum. Bly ex Rowl) e Cereus jamacaru DC associado ao estádio vegetativo do caule

• Autor(a) principal: LIMA, Raquel da Silva
• Data de Publicação: 2019
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRPE
• Texto Completo: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8431
• topic: Pilosocereus gounellei; Cereus jamacaru; Cactácea; Nutrição animal; ZOOTECNIA::PRODUCAO ANIMAL

Among the various species present in the caatinga that can be used as animal feed, we highlight the plants of the Cactaceae family. Highly adapted to the climate of the Semiarid region, and even under conditions of water stress, they preserve their nutritional composition and can be a source of nutrients, especially carbohydrates (main energy source). The work was conducted in Caatinga areas, located in Arcoverde, Sertânia and Serra Talhada regions, Pernambuco State. The objective of this study was to evaluate the nutritional components and digestive potential of native cacti Pilosocereus gounellei (A. Weber ex K. Schum.), Bly ex Rowl) and Cereus jamacaru DC. associated with the vegetative stage of the secondary stem. Chemical-bromatological composition, in vitro digestibility of DM, in vitro gas production and carbohydrate fractionation were determined. There was a difference (P <0.05) regarding the DM composition for P. gounellei and C. jamacaru youth stadium. For the NDF, NDFcp and ADF contents of Pilosocereus gounellei and Cereus jamacaru the young stadium presented lower concentrations in relation to the other stages (P <0.05). In the young and intermediate stages presented high concentrations of non-fibrous carbohydrates and high concentrations of fractions A + B1, being considered excellent sources of energy. Regarding in vitro dry matter digestibility (DIVMS) C. jamacaru presented (P <0.05) higher values in its vegetative stages compared to P. gounellei, this is because C. jamacaru presents high concentrations of fraction B2 of CHO in their stadiums. C. jamacaru presents higher in vitro gas production in its stages and in its naturally occurring area II and III compared to P. gounellei. The chemical-bromatological composition of Pilosocereus gounellei and Cereus jamacaru varies with the development of the vegetative stage regardless of the place of its natural occurrence.