scholarly journals Essential oil of Ocimum basilicum and Eugenol as Sedatives for Nile Tilapia

2020 ◽  
Vol 8 (2) ◽  
pp. 657
Author(s):  
Arlene Sobrinho Ventura ◽  
Ruy Alberto Caetano Corrêa Filho ◽  
Gabrielly Cristina Teodoro ◽  
Laice Menes Laice ◽  
Phillipe Thiago Leite Barbosa ◽  
...  
Keyword(s):  
Water Quality ◽  
Essential Oil ◽  
Respiratory Rate ◽  
Nile Tilapia ◽  
Exposure Period ◽  
Ocimum Basilicum ◽  
Sedative Effect ◽  
Ventilatory Frequency ◽  
Control Water

This study evaluated the modulation of the ventilatory frequency of Nile tilapia sedated with essential oil of Ocimum basilicum and eugenol. The fish were exposed to the following treatments: control (water only); ethanol 200 µl L-1 (concentration used to dilute the anesthetic); eugenol 10 µl L-1 and 20 µl L-1; essential oil of O. basilicum at the concentration of 10 µl L-1 and 20 µl L-1. After 90 minutes of exposure to the treatments, water quality, mortality and respiratory rate were determined. The concentration of 20 µl L-1 of the essential oil of O. basilicum and eugenol showed a sedative effect and reduced the excretion of metabolic ammonia in Nile tilapia. There was no mortality in fish exposed to the treatments. The respiratory rate did not differ between the different treatments. It is concluded that the concentration of 20 µl L-1 of the essential oil of O. basilicum and eugenol shows the best result in the inducing sedative effect for Nile tilapia, and that the essential oil of O. basilicum and eugenol in the concentrations of 10 µl L-1 and 20 µl L-1 in an exposure period up to 90 minutes do not alter the ventilatory frequency of Nile tilapia.

Evaluation of the effects of Ocimum basilicum essential oil in Nile tilapia diet: growth, biochemical, intestinal enzymes, haematology, lysozyme and antimicrobial challenges

Aquaculture ◽  
2019 ◽  
Vol 504 ◽  
pp. 7-12 ◽  
Author(s):  
Elizângela M. de Souza ◽  
Renilde C. de Souza ◽  
José F.B. Melo ◽  
Mateus M. da Costa ◽  
Anderson M. de Souza ◽  
...  
Keyword(s):  
Essential Oil ◽  
Nile Tilapia ◽  
Ocimum Basilicum ◽  
Intestinal Enzymes ◽  
Tilapia Diet

scholarly journals Chemical constituents and insecticidal activity of the essential oil from fruits of foeniculum vulgare miller on larvae of khapra beetle (trogoderma granarium everts)

2013 ◽  
Vol 59 (4) ◽  
pp. 86-96 ◽  
Author(s):  
Iyad Ghanem ◽  
Adnan Audeh ◽  
Amer Abu Alnaser ◽  
Ghaleb Tayoub
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Chemical Constituents ◽  
Exposure Period ◽  
Probit Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Fumigant Toxicity ◽  
Foeniculum Vulgare ◽  
Trogoderma Granarium ◽  
Foeniculum Vulgare Miller

Abstract The objective of current study was to determine the chemical constituents and fumigant toxicity of essential oil isolated by hydro-distillation from dry fruit of bitter fennel (Foeniculum vulgare Miller). The chemical composition of the essential oil was assessed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Constituents of the oil were determined as α-pinene (1.6%) and limonene (3.3%), fenchone (27.3%), estragol (3.9%), and (E)-anethole (61.1%). The fumigant toxicity of the essential oil was tested on larvae of the stored product insect Trogoderma granarium Everts. The mortality of larvae was tested at different concentrations ranging from 31.2 to 531.2 μl/l air and at different exposure times (24 and 48 h). Probit analysis showed that LC50 and LC90 following a 48 h-exposure period for essential oil were 38.4 and 84.6 μl/l, respectively. These results showed that the essential oil from F. vulgare may be applicable to the management of populations of stored-product insects.

Lippia alba essential oil improves water quality during transport and accelerates the recovery of Potamotrygon wallacei from the transport-induced stress

Aquaculture ◽  
2021 ◽  
pp. 737176
Author(s):  
Karine Ariotti ◽  
Jaydione L. Marcon ◽  
Isabela A. Finamor ◽  
Caroline A. Bressan ◽  
Cristiano L. De Lima ◽  
...  
Keyword(s):  
Water Quality ◽  
Essential Oil ◽  
Lippia Alba ◽  
Induced Stress

Priming with salicylic acid, β-carotene and tryptophan modulates growth, phenolics and essential oil components of Ocimum basilicum L. grown under salinity

2021 ◽  
Vol 281 ◽  
pp. 109964
Author(s):  
Halime Kahveci ◽  
Nilgun Bilginer ◽  
Emel Diraz-Yildirim ◽  
Muhittin Kulak ◽  
Emre Yazar ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Essential Oil ◽  
Ocimum Basilicum ◽  
Oil Components ◽  
Β Carotene

scholarly journals Association between periphyton and bioflocs systems in intensive culture of juvenile Nile tilapia

2016 ◽  
Vol 38 (2) ◽  
pp. 119 ◽  
Author(s):  
Davi De Holanda Cavalcante ◽  
Francisco Roberto dos Santos Lima ◽  
Vanessa Tomaz Rebouças ◽  
Marcelo Vinícius do Carmo e Sá
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Nile Tilapia ◽  
Specific Growth ◽  
Block Design ◽  
Intensive Culture ◽  
Effluent Quality ◽  
Intensive Farming ◽  
Randomized Block Design ◽  
Underwater Structure

The present work aimed at determining the effects of the association between the periphyton-based system with the bioflocs-based system in the intensive culture of juvenile Nile tilapia (1.56 ± 0.07 g; 72 fish m-3), on variables of water quality, growth performance and effluent quality after 10 weeks. The experiment was arranged in a 2 x 2 factorial randomized block design with four treatments and five repetitions each. The factors tested were the following: ‘underwater structure’ (absence and presence) and ‘adjustment of the C: N ratio of water’ (no and yes). The final fish body weight, specific growth rate and yield were higher (p < 0.05) in the C: N-adjusted tanks. The presence of submerged structures in the tanks had no significant influence on those same variables. It was concluded that the periphyton-based system is not indicated for intensive farming of Nile tilapia, in which there is a high allowance of artificial feed to fish. 

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