Banca de DEFESA: MÁRNIO ROVEDA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MÁRNIO ROVEDA
DATE: 19/12/2022
TIME: 09:00
LOCAL: Web Conferência - Google Meet: https://meet.google.com/snn-fugi-mez.
TITLE:

ACIDIFIER IN WATER FROM NILE TILAPIA (OREOCHROMIS NILOTICUS) PRODUCTION IN BIOFLOCKS.

KEY WORDS:

Formic acid, Biofloc, Zootechnical performance, orthophosphoric, Ammonia.

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

This work aims to evaluate the use of an additive based on formic acid and lignin derivatives on microbiological, performance, hematological and water quality parameters in a biofloc system for Nile tilapia production. A first step was carried out, with a test of Minimum Inhibitory Concentration (MIC) and inhibition halo, where it was possible to observe that the additive had an inhibitory effect against all the bacteria tested. In the dose-response evaluation step for the additive, doses of 0; 2.5; 5; 10 and 20 ppm were utilized, where the dose of 2.5 ppm was more suitable for use in biofloc cultivation. There were no significant changes in the pH and alkalinity of the water in a period of 24 hours after the administration of the additive. Parameters such as the amount of nitrate and orthophosphates in the biofloc water were statistically lower when the additive was used. There was no statistical difference for the performance and hematological parameters between the groups treated or not with additive. The author concludes that the use of an acidifier additive based on formic acid and lignin derivatives contributes positively to the water quality of a biofloc system.

COMMITTEE MEMBERS:
Externo à Instituição - MOISES ANGEL POLI
Presidente - 1830781 - ADOLFO JATOBA MEDEIROS BEZERRA
Externo ao Programa - 1160184 - MAURICIO LEHMANN - null