scholarly journals Efficiency of eugenol as anesthetic for the early life stages of Nile tilapia (Oreochromis niloticus)

2015 ◽  
Vol 87 (1) ◽  
pp. 529-535 ◽  
Author(s):  
Paula A.P. Ribeiro ◽  
Kleber C. Miranda-Filho ◽  
Daniela C. de Melo ◽  
Ronald K. Luz
Keyword(s):  
Oreochromis Niloticus ◽  
Early Life ◽  
Nile Tilapia ◽  
Life Stages ◽  
Early Life Stages ◽  
Farmed Fish ◽  
Group V ◽  
Group Iii ◽  
Group I ◽  
Nile Tilapia Oreochromis Niloticus

In aquaculture, activities with anesthetic compounds are usually used in order to ensure the welfare of farmed fish, allowing handling out of water with decreased trauma by stress. Presently, there is no information about anesthetic action of eugenol in early life stages of Nile tilapia (Oreochromis niloticus). The objective of this study was to evaluate different concentrations of eugenol for larvae and juveniles of Nile tilapia. Sixty animals were used for each group of weight, group I = 0.02 g; group II = 0.08 g; group III = 0.22 g; group IV = 2.62 g; and group V = 11.64 g. The eugenol concentrations tested were 50, 75, 100, 125, 150 and 175 mg L-1. No mortality was reported during the tests with eugenol. Tilapia larvae with 0.02 g and juveniles around 11.64 g can be anesthetized with eugenol concentrations between 150 and 175 mg L-1, since they determine the shortest sedation time (23 and 72 seconds, for the group of lowest and highest weights, respectively).

Antioxidant potential of bulk and nanoparticles of naringenin against cadmium-induced oxidative stress in Nile tilapia, Oreochromis niloticus

2021 ◽  
Vol 10 (1) ◽  
pp. 392-402
Author(s):  
Nouf Abdallah Mreat Al-Ghamdi ◽  
Promy Virk ◽  
Awatif Hendi ◽  
Manal Awad ◽  
Mai Elobeid
Keyword(s):  
Oxidative Stress ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Negative Control ◽  
Group V ◽  
Group Iii ◽  
Group I ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Liver And Kidney ◽  
Hepatic Metallothionein

Abstract The study assessed the attenuating effect of citrus flavonone, naringenin, and its nanoformulation against cadmium (Cd) toxicity in Nile tilapia (Oreochromis niloticus). Nanoparticles of naringenin (NNn) were synthesized; size 165.1 nm (PDI 0.396) in variable shapes; cluster widespread, spherical accumulated, and tubular bacillary. Parallel, mature male Nile tilapia (n = 120 fish) were used for the exposure study. Group I was negative control. The groups II, III, and IV were exposed to 5 ppm of cadmium chloride monohydrate (CdCl2·H2O) for 21 days. Group III was treated with bulk naringenin (BNn) (3 ppm) and group IV was treated with NNn (3 ppm). Group V was exposed only to NNn (3 ppm). Cd-induced oxidative stress was evident from a significant increase in the hepatic malondialdehyde (MDA) levels and modulation of antioxidant enzymes in the liver and kidney. A significant increase in the hepatic metallothionein and HSP70 levels in the gills was observed. Treatment with both BNn and NNn significantly (p ≤ 0.05) reversed the Cd-induced alterations. However, the protective effect of nano naringenin was more profound on the bioaccumulation of Cd in liver and levels of HSP70 in the gills. These key findings could add to the commercial exploitation of naringenin and its nanosized form as a dietary therapeutic molecule.

Toxicity of palm oil mill effluent on the early life stages of Nile tilapia (Oreochromis niloticus, Linnaeus 1758)

2020 ◽  
Vol 27 (24) ◽  
pp. 30592-30599 ◽  
Author(s):  
Muliari Muliari ◽  
Ilham Zulfahmi ◽  
Yusrizal Akmal ◽  
Ni Wayan Kurniani Karja ◽  
Chairun Nisa ◽  
...  
Keyword(s):  
Palm Oil ◽  
Oreochromis Niloticus ◽  
Early Life ◽  
Nile Tilapia ◽  
Palm Oil Mill Effluent ◽  
Life Stages ◽  
Early Life Stages ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Palm Oil Mill

scholarly journals 13. The Amount of Melanomacrophage centres (MMC) in Liver and Kidneys of Tilapia (Oreochromis niloticus) Maintained in Various Population Density

2017 ◽  
Vol 11 (2) ◽  
pp. 77-81
Author(s):  
Nurul Hadi ◽  
Dwina Aliza ◽  
Razali Daud
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Group Iv ◽  
Group Iii ◽  
Treatment Groups ◽  
Group I ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Liver And Kidney ◽  
Fish Group ◽  
Fish Kidney

The aim of this research was to find out the amount of melanomacrophage centres (MMC) in liver and kidney of nile tilapia (Oreochromis niloticus) fish reared in high dense population. Fifty nile tilapia were grouped in four treatment groups, group I contain 5 fish, group II contain 10 fish, group III contain 15 fish and group IV contain 20 fish. Treatment was carried out for 24 hours. Fish was necropsied to collect the liver and kidney, fixed in NBF 10% then proceed to histopathological method using hematoxilin and eosin for staining. Histopathological observation was done microscopically, and MMC was captured by photomicrograph. The data were analyzed descriptively. The result showed that the average of MMC number in fish liver in group K1, K2, K3, and K4 were 9.6, 11.3, 12.6, and 13.2. While the average of MMC number in fish kidney were 5.5, 7.7, 8.5, and 9.2, respectively. The higher the dense of population the higher the amount of MMC found in liver and kidney of nile tilapia.

Cholinesterase inhibition and behavioral toxicity of carbofuran on Oreochromis niloticus early life stages

2011 ◽  
Vol 105 (3-4) ◽  
pp. 312-320 ◽  
Author(s):  
P.C. Pessoa ◽  
K.H. Luchmann ◽  
A.B. Ribeiro ◽  
M.M. Veras ◽  
J.R.M.B. Correa ◽  
...  
Keyword(s):  
Oreochromis Niloticus ◽  
Early Life ◽  
Cholinesterase Inhibition ◽  
Life Stages ◽  
Early Life Stages ◽  
Behavioral Toxicity
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