Data/hora: 10/06/2024 17:10:01

Provedor de dados: | Acta Scientiarum: Animal Sciences
País: | Brazil

Título:

Small crumbled diet versus powdered diet in restricted feeding management of juvenile Nile tilapia - doi: 10.4025/actascianimsci.v35i2.16767

Small crumbled diet versus powdered diet in restricted feeding management of juvenile Nile tilapia - doi: 10.4025/actascianimsci.v35i2.16767

Autores: | Lima, Francisco Roberto dos Santos; Universidade Federal do Ceará; Akao, Michael Masaki Freitas; Universidade Federal do Ceará; Oliveira-Segundo, José Nacélio; Universidade Federal do Ceará; Sá, Marcelo Vinícius do Carmo e; Universidade Federal do Ceará.
Data: | 2012-12-03
Ano: | 2012
Palavras-chave: | Unpelleted diet; Crumble; Particle size; Restricted feeding; Water quality; Oreochromis niloticus Unpelleted diet; Crumble; Particle size; Restricted feeding; Water quality; Oreochromis niloticus.
Resumo: | The pellet size of the diet can affect both fish growth performance and the water quality of the rearing units. The present work assessed the effects of feeding juvenile Nile tilapia, Oreochromis niloticus (L.) a small crumbled diet (SCD; 0.8  mm) on water quality and growth performance. Fish were reared for six weeks in twenty 250-L polyethylene outdoor tanks at a density of 10 juveniles tank-1 (40 fish m-3). There were two feeding rates (standard and restricted) and two types of artificial fish diet (powdered and SCD). The standard feeding rates were reduced by 30% for restricted feeding. The concentrations of free CO2, reactive phosphorus, total ammonia nitrogen (TAN) and nitrite were higher in the full-fed tanks relative to the restricted-fed tanks. In the standard feeding rate groups, those tanks fed SCD had lower TAN and nitrite concentrations than tanks fed a powdered diet. The final body weight and specific growth rate of fish fed a restricted SCD were higher than the full-fed tanks. The higher levels of food waste in the powdered-diet tanks lead to impairment of fish growth performance.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16767

10.4025/actascianimsci.v35i2.16767

Editor: | Editora da Universidade Estadual de Maringá

Relação:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16767/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/16767/pdf_1

Formato:

application/pdf

application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 127-131

Acta Scientiarum. Animal Sciences; v. 35, n. 2 (2013); 127-131

1807-8672

1806-2636

Fonte:

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DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Animal Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).