A new approach for quantifying phosphorus requirement in Colossoma macropomum using CT scanning

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Jataí-
Autor(es): dc.contributorPontifícia Universidade Católica de Goiás-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMenezes, Ludmila L. C.-
Autor(es): dc.creatorSantos, Janaina G. A.-
Autor(es): dc.creatorGuimarães, Igo G.-
Autor(es): dc.creatorPadua, Delma M. C.-
Autor(es): dc.creatorMachado, Vânia M. V.-
Autor(es): dc.creatorSouto, Cristielle N.-
Data de aceite: dc.date.accessioned2025-08-21T18:18:07Z-
Data de disponibilização: dc.date.available2025-08-21T18:18:07Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/anu.13317-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229290-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229290-
Descrição: dc.descriptionAvailable phosphorus (AP) requirement for tambaqui (Colossoma macropomum) was evaluated using different response parameters, and CT scanning was used to determine the adequacy of dietary P along with bone mineralization data. A total of 192 tambaqui juveniles (17 ± 0.85 g) were stocked into 24 70 L-tanks using randomized block design (different floors) with six treatments (1.3, 2.4, 4.8, 6.3, 7.8 and 8.8 g kg−1 AP) and four replicates. Fish were fed ad libitum with six semi-purified diets containing graded levels of AP for 90 days. The dietary AP requirement was estimated using non-linear regression models. No mortality or apparent signs of P deficiency were observed. Increasing dietary AP levels improved all performance variables. Dietary P levels significantly affected bone density. The estimated P requirement for tambaqui was 6.3, 3.68, 5.0 and 6.91 g kg−1 diet for improved weight gain, bone density, vertebrae mineralization and carcass mineral deposition, respectively. CT scanning allowed the visualization of bone structures affected by P deficiency and could predict the P requirement based on vertebrae mineralization. Additionally, blood chemistry parameters were significantly affected by the dietary P level, except for serum calcium. Thus, the use of 6.3 g kg−1 AP in tambaqui diets can maintain normal growth and bone mineralization of juveniles from 17–150 g.-
Descrição: dc.descriptionLaboratório de Pesquisa em Aquicultura Campus Cidade Universitária Universidade Federal de Jataí-
Descrição: dc.descriptionDepartamento de Zootecnia Pontifícia Universidade Católica de Goiás-
Descrição: dc.descriptionDepartamento de Reprodução Animal e Radiologia Veterinária Universidade Estadual Paulista- Campus Botucatu-
Descrição: dc.descriptionDepartamento de Reprodução Animal e Radiologia Veterinária Universidade Estadual Paulista- Campus Botucatu-
Idioma: dc.languageen-
Relação: dc.relationAquaculture Nutrition-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbone densitometry-
Palavras-chave: dc.subjectCachama-
Palavras-chave: dc.subjectcarcass mineralization-
Palavras-chave: dc.subjectmineralization of scales-
Palavras-chave: dc.subjectphosphorus nutrition-
Título: dc.titleA new approach for quantifying phosphorus requirement in Colossoma macropomum using CT scanning-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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