Data/hora: 08/06/2024 18:32:05

Provedor de dados: | 83
País: | Brazil
Título: | Rhamdia quelen (Quoy &amp;amp; Gaimard, 1824), submitted to a stressful condition: effect of dietary addition of the essential oil of Lippia alba on metabolism, osmoregulation and endocrinology
Autores: | Souza,Carine de Freitas; Salbego,Joseânia; Gressler,Luciane T.; Golombieski,Jaqueline I.; Ferst,Juliana G.; Cunha,Mauro A.; Heinzmann,Berta M.; Caron,Braulio O.; Glanzner,Werner G.; Gonçalves,Paulo B. D.; Baldisserotto,Bernardo.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Cortisol; Enzymatic activity; Growth hormone; Somatolactin.
Resumo: | ABSTRACT The aim of this study was to evaluate the effect of the essential oil of Lippia alba (EOLA) as a feed additive on ionoregulatory and metabolic parameters and pituitary hormones expression in silver catfish, Rhamdia quelen , submitted to a stressful condition (stocking density of 10.6 kg m-3 and limited space). Fish were fed with different concentrations of EOLA (0.0 - control, 0.25 and 0.50 mL kg food-1) for 20 days. Metabolic parameters were not affected by the diet, with the exception of alanine aminotransferase, which was higher in the liver of fish fed 0.50 mL EOLA kg food-1. Plasma ions and activity of H+-ATPase did not change, but fish fed 0.25 mL EOLA kg food-1 presented higher Na+/K+-ATPase activity. Somatolactin expression in the pituitary was higher in the fish fed 0.25 mL EOLA kg food -1, but the expression of growth hormone and prolactin did not change. Therefore, dietary EOLA does not exert a protective effect in R. quelen submitted to a stressful situation because it did not alter most measured parameters. The use of 0.25 mL EOLA kg food-1 seems to be more suitable than 0.50 mL EOLA kg food-1 since the latter may be related to liver damage.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400707
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20140153
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.13 n.4 2015
Fonte: | info:eu-repo/semantics/openAccess