Transportation of silver catfish, Rhamdia quelen, in water with eugenol and the essential oil of Lippia alba.
Fish Physiol Biochem
; 38(3): 789-96, 2012 Jun.
Article
in En
| MEDLINE
| ID: mdl-21972065
ABSTRACT
This study investigated the effectiveness of eugenol and of the essential oil (EO) of Lippia alba when used in the transport of the silver catfish (Rhamdia quelen). These investigations involved measurements of blood (pH, PvO(2), PvCO(2) and HCO(3) (-)) and water parameters, survival and ionoregulatory balance. Fish (301.24 ± 21.40 g, 28.90 ± 1.30 cm) were transported at a loading density of 169.2 g L(-1) for 4 h in fifteen plastic bags (7 L) divided into five treatments control, 1.5 or 3.0 µL L(-1) of eugenol and 10 or 20 µL L(-1) of EO of L. alba. The water parameters were measured before (0 h) and after (4 h) transportation. The net Na(+), Cl(-) and K(+) losses were higher in fish from the control treatment compared to the other treatments. The PvO(2), PvCO(2) and HCO(3) (-) increased significantly in all of the treatments at the end of the transport period. In conclusion, based on the water (total ammonia nitrogen) and ionoregulatory indicators determined in the present study, our findings indicate that eugenol and the EO of L. alba are recommended for use in the transport of this species because these anesthetics apparently reduce stress.
Full text:
1
Database:
MEDLINE
Main subject:
Catfishes
Type of study:
Evaluation_studies
Limits:
Animals
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Year:
2012
Type:
Article