Data/hora: 01/06/2024 16:25:35

Provedor de dados: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia
País: | Brazil
Título: | Efficacy of Ocimum gratissimum essential oil against the monogenean Cichlidogyrus tilapiae gill parasite of Nile tilapia
Autores: | Meneses,J.O.; Couto,M.V.S. do; Sousa,N.C.; Cunha,F. dos S.; Abe,H.A.; Ramos,F.M.; Chagas,E.C.; Chaves,F.C.M.; Martins,M.L.; Maria,A.N.; Carneiro,P.C F.; Fujimoto,R.Y.
Data: | 2018-03-01
Ano: | 2018
Palavras-chave: | Disease; Freshwater fish; Helminth; Natural product; Treatment.
Resumo: | ABSTRACT The phythotherapy is an alternative to use of chemotherapeutical agents against monogenean infection. This study evaluated the anthelmintic activity of essential oil Ocimum gratissimum against monogenean Cichlidogyrus tilapiae as well as its acute toxicity in tilapia juveniles. The mean lethal concentration (LC50) and different concentrations of the essential oil, both in vitro and in vivo assays (short and long-term baths) were assessed. The LC50 was 40.70mg.L-1 and in the in vitro assay this concentration showed 80% efficacy at the last two hours and in the in vivo assay 65.87% efficacy in long-term bath. However, it provoked morphological alterations on the gills such as hyperplasia and edema. The parasites exposure at the highest concentration (320mg.L-1) showed 100% mortality after 2h exposure in the in vitro assay, whereas in the in vivo assay, short-term baths of 5min for 3 consecutive days showed an efficacy of 87.71% without gills damage. These results demonstrate the anthelminthic activity of essential oil O. gratissimum and the safety concentration to use in Nile tilapia.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000200497
Editor: | Universidade Federal de Minas Gerais, Escola de Veterinária
Relação: | 10.1590/1678-4162-9667
Formato: | text/html
Fonte: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia  v.70 n.2 2018
Fonte: | info:eu-repo/semantics/openAccess