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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avaliação do sistema digestório de juvenis de tambaqui Colossoma macropomum (Cuvier, 1818) alimentados com rações formuladas utilizando ingredientes regionais

SIZO, Fabricia de Jesus Paiva da Fosenca 02 April 2013 (has links)
Submitted by Cássio da Cruz Nogueira (cassionogueirakk@gmail.com) on 2017-05-15T11:49:47Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_AvaliacaoSistemaDigestorio.PDF: 1120752 bytes, checksum: da632f6763e1295064b109a9481ebce4 (MD5) / Approved for entry into archive by Edisangela Bastos (edisangela@ufpa.br) on 2017-05-17T14:29:32Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_AvaliacaoSistemaDigestorio.PDF: 1120752 bytes, checksum: da632f6763e1295064b109a9481ebce4 (MD5) / Made available in DSpace on 2017-05-17T14:29:32Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_AvaliacaoSistemaDigestorio.PDF: 1120752 bytes, checksum: da632f6763e1295064b109a9481ebce4 (MD5) Previous issue date: 2013-04-02 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objetivo do presente estudo foi avaliar o sistema digestório de juvenis de tambaqui alimentados com ração regional contendo 28% de proteína bruta e 3000 kcal/kg, com a inclusão de 20% dos seguintes ingredientes: torta de dendê, torta de tucumã, e farelo de coco. Foram utilizados 300 juvenis de tambaqui (16,0 ±1,5g), distribuídos em 12 tanques de 250L, em regime de recirculação, filtragem e aeração contínua de água. O experimento foi conduzido com três replicas de quatro tratamentos sendo eles: dieta basal-T1, dendê-T2, tucumã-T3 e coco-T4. Sessenta dias após a alimentação porções do intestino médio e fígado foram fixados em Bouin e processados para microscopia óptica. Morfometrias das vilosidades intestinais revelaram que as dietas-T1 e T4 interferiram na altura das microvilosidades epiteliais. A medida da área dos hepatócitos mostrou diferença entre as dietas T3, T2 e T1. As alterações hepáticas foram significativas na dieta a base de tucumã levando a conclusão de que a dieta a base de dendê é a mais indicada para a formulação de rações para juvenis de tambaqui. / The objective of this study was to evaluate the digestive system of juvenile tambaqui fed with an experimental diet containing 28% crude protein and 3000 Kcal/kg, with an inclusion of 20% of the following ingredients: palm kernel cake, tucuma pie and coconut bran. We used 300 juveniles tambaqui (16.0± 1.5 g), distributed in 12 recirculating tanks (250L) with continuous filtration and aeration of water. The experiment design was randomized and conducted with three replicates of four treatments identified as basal diet- T1, palm kernel-T2, tucumã- T3 and coconut-T4. After feeding for 60 days portions of the mid intestine and live were fixed in bouin and processed for optic microscopy. Morphometric of intestinal villi showed that diets, T1 and T4 interfered in the epithelial microvilli height. Hepatocytes showed differences between the diets T3, T2 and T1. Hepatic changes were significant in the tucumã diet. Leading to the conclusion that a diet based on palm kernel is the most suitable to feed juveniles tambaqui.

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