Journal
ARQUIVO BRASILEIRO DE MEDICINA VETERINARIA E ZOOTECNIA
Volume 70, Issue 2, Pages 497-504Publisher
ARQUIVO BRASILEIRO MEDICINA VETERINARIA ZOOTECNIA
DOI: 10.1590/1678-4162-9667
Keywords
disease; freshwater fish; helminth; natural product; treatment
Categories
Funding
- Santa Clara Fish Farm - Sergipe
- Jose Julio dos Santos (Seu Tenente) - producer
- Fish Farm Station of Itiuba (CODEVASF)
- National Council for Scientific and Technological Development (CNPq) [305195/2016-6, 305869/2014-0]
Ask authors/readers for more resources
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 longterm 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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available