Abstract
http://dx.doi.org/10.5007/2175-7925.2017v30n1p91Dinomys branickii é uma espécie vulnerável que sofre pressão de atividades antrópicas como a caça e a destruição do habitat. A criação dessa espécie em cativeiro é uma alternativa viável para a implantação de projetos de conservação e para ampliar o conhecimento dos principais aspectos da sua biologia. O objetivo deste trabalho foi determinar o consumo e a preferência alimentar de um grupo de D. branickii em cativeiro. Para determinar a preferência alimentar foi utilizado o índice de preferência alimentar (P) dos alimentos mais consumidos. A quantidade média de alimentos ofertados foi de 6,6 kg dia/grupo, sendo consumidos 4,4 kg dia/grupo (66%), totalizando 11 ± 2,9 alimentos ofertados por dia. O consumo de frutas (71%) foi maior que os demais grupos alimentares, seguido do consumo raízes/tubérculos (65,3%) e os menos consumidos foram cereais/sementes (39,4%) e folhas (38,3%). Os alimentos preferidos foram: Brassica oleracea (P = 1,38), Zea mays (P = 1,25), Ipomoea batatas (P = 1,17), Mangifera indica (P = 1,13), Cucubita moschata (P = 1,10), Talinum esculentum (P = 1,00) e Manihot esculenta (P = 1,00). Os resultados obtidos sugerem que os alimentos com teor elevado de ibras e carboidratos devem ser utilizados na composição da dieta de D. branickii em cativeiro, visando o bem estar e desenvolvimento da espécie.
Highlights
The pacarana (Dinomys branickii) is the only rodent species from the Family Dinomyidae, and has restricted occurrence in South America including parts of Bolivia, Brazil, Colombia, Ecuador and Peru (CONSELHO NACIONAL DE PESQUISA, 1991)
Captive breeding of D. branickii has emerged as a way to learn about its biology and feeding behavior, and resulting data may contribute to the development of adequate protocols for ex-situ management practices
The viability of captive breeding is limited by gaps in our knowledge of nutritional requirements of this species, and this information is crucial for maintenance of growth, development and reproduction (CAVALCANTE et al, 2005; ANTONIO et al, 2007)
Summary
The pacarana (Dinomys branickii) is the only rodent species from the Family Dinomyidae, and has restricted occurrence in South America including parts of Bolivia, Brazil, Colombia, Ecuador and Peru (CONSELHO NACIONAL DE PESQUISA, 1991). In Brazil, it occurs exclusively in western Amazon in the states of Acre, Rondônia, and southeast Amazonas, and is thought to occur in Mato Grosso do Norte (EMMONS; FEER, 1990) This species is rarely seen in the natural habitat, so records of occurrence are usually based on footprints (SÁNCHEZ et al, 2004) and information obtained from interviews with local community members where they occur (PACHECO et al, 2007). According to the International Union for Conservation of Nature (IUCN, 2015), this species is considered vulnerable and susceptible to extinction due to factors such as hunting for meat consumption, demographic growth of local traditional populations, and deforestation (TIRIRA et al, 2008) Despite these threats, this species is currently not on the list of endangered species in Brazil, perhaps due to sparsity of data Chiarello et al (2008). Development of an effective ex-situ production system will require knowledge of nutritional requirements for the species (ANTONIO et al, 2007)
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