Data/hora: 01/06/2024 06:47:00

Provedor de dados: | 2
País: | Brazil

Título:

Effect of sulfated polysaccharides from the Rodophyta Kappaphycus alvarezii in post larva of Nile tilapia (Oreochromis niloticus) submitted to a stress situation - doi: 10.4025/actascianimsci.v34i3.13213

Efeito dos polissacarídeos sulfatados da rodofícea Kappaphycus alvarezii em pós-larvas de tilápia do Nilo (Oreochromis niloticus) submetidas a situações de estresse - doi: 10.4025/actascianimsci.v34i3.13213

Autores: | Saboya, Jefferson Pablo de Sousa; Universidade Federal do Ceara; Araujo, Glacio Souza; Universidade Federal do Ceara; Silva, José William Alves da; Universidade Federal do Ceara; Sousa Junior, José de; Universidade Federal do Ceara; Maciel, Rafael Lustosa; Universidade Federal do Ceara; Farias, Wladimir Ronald Lobo; Universidade Federal do Ceara.
Data: | 2012-05-11
Ano: | 2012
Palavras-chave: | Seaweed; Immunostimulant; Sex reversal 5.06.00.00-1 alga marinha; Imunoestimulante; Reversão sexual.
Resumo: | The study evaluated the effect of oral administration of sulfated polysaccharides (SP) extracted from the marine macroalga Kappaphycus alvarezii on survival and weight gain of Nile tilapia post larvae during sex reversal in a stress situation. SP were extracted from the seaweed by enzymatic digestion and incorporated into the diet before the addition of the hormone 17-α-methyltestosterone, and administered at the doses of 0.05, 0.1 and 0.2 mg g-1 of body weight and a control (without SP), for 28 days. In the last week of sex reversal a stress situation was established by removing the aeration and water renewal. Survival and weight gains data were subjected to a variance analysis (ANOVA) and Tukey's test for averages differentiation at significance levels of 1 and 5%. Weight gains were greater in animals that received SP, regardless of the used dose and better survivals were obtained when SP were administered at the doses of 0.05 and 0.1 mg g-1, with values of 79.90 ± 5.68 and 77.60 ± 1.80%, respectively. The study revealed that small doses of the SP were able to improve survival, daily weight gain and final average weight of tilapias submitted to a stress situation.
Tipo: | Analise laboratorial
Idioma: | Português

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13213

10.4025/actascianimsci.v34i3.13213

Editor: | Editora da Universidade Estadual de Maringá
Formato: | application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; v. 34, n. 3 (2012); 215-221

Acta Scientiarum. Animal Sciences; v. 34, n. 3 (2012); 215-221

Fonte:

DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Animal Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).

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).