Banca de DEFESA: FABIANO DE LIMA MATTER

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : FABIANO DE LIMA MATTER
DATE: 14/12/2020
TIME: 09:00
LOCAL: Web Conferência via Google Meet: meet.google.com/vsv-kisb-djc.
TITLE:

Evaluation of Propofol as an anesthetic in Ictalurus punctatus.

KEY WORDS:

Anesthesia; catfish; cortisol; stress; 2.6-diisopropifene.

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

The present study aimed to evaluate Propofol (2,6 - diisopropylphenol) as anesthetic in Catfish (Ictalurus punctatus) and its effects on fish physiology. The project was divided into two phases. Phase I: a) Determination of the ideal anesthetic concentration. Phase II: Evaluation of the anesthetic's effect on physiological responses (cortisol, glucose, lactate) and histopathological changes in gills and liver. To determine the ideal dose, 60 juveniles with an average weight of 96.60 ± 27.70 g were used, submitted to different concentrations of anesthetic: 1.5; 2.0; 2.5; 3.0; 4.0; 5.0; 6.0 mg/L. The concentration of 2.5 mg/L was considered as the ideal concentration, providing anesthetic induction and recovery in less time. The evaluation of the anesthetic's effect on the physiological responses and histopathological changes showed that the exposure of juvenile catfish to a concentration of 2.5 mg/L of propofol was sufficient to cause changes in the values of the variables: cortisol, glucose, lactate and histology of liver and gills. However, there was no significant difference in plasma cortisol levels (P>0.05) between the control and treatment groups. The histopathological study revealed mild to moderate changes in the gills (congestion in the lamellar vessels and central vein, epithelial elevation), moderate and severe changes in the liver (congestion and degeneration). Mortality rates were not observed. This study indicates that the 2.5 mg / L dose of propofol provides safe anesthesia in I. punctatus and suppresses the increase in the level of cortisol.

BANKING MEMBERS:
Presidente - 2356802 - ROBILSON ANTONIO WEBER
Externa ao Programa - 2269362 - CARLIZE LOPES
Externo à Instituição - ÉVERTON LUÍS ZARDO