Banca de DEFESA: ANDRESSA VIEIRA DE MORAES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ANDRESSA VIEIRA DE MORAES
DATE: 07/08/2020
TIME: 09:00
LOCAL: Web Conferência via Google Meet - meet.google.com/idu-wbuf-qjz.
TITLE:

Microencapsulated probiotics in Oreochromis niloticus fingerling.

KEY WORDS:

S. cerevisiae, Bacillus spp., Microencapsulation, Survival, Tilapiculture.

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

Microencapsulation is a biotechnology that allows the viability of probiotics in the industrial process, being a new technique and still little explored. The objective of this work was to analyze individually the effect of two microencapsulated pro biotic additives Add Life Pro Sacch Acqua (S. cerevisiae), and Add Life Pro Bacil Acqua (Bacillus spp) on the diet of O. niloticus fingerlings about microbiological viability in the diet after extrusion process, changes in the microbiota of the host, blood immunological profile of fish, zootechnical parameters and survival of these against the experimental challenge with A. hidrophyla. For this, 630 fingerlings of the species were distributed in nine experimental units (UE), 70 fish each, divided into three treatments (Control, SACCH and BACIL), in triplicate, and fed for 45 days. The microbiological count of the diet was performed after extrusion, on the first day of the experimente, and every 15 days until its completion. After this period, five fish per E U were assigned to hematological evaluations, five for immunological analysis, five for intestinal tract microbiota study, and five for collection of fecal material for intestinal microbiota metagenomic analysis. And 20 animals per treatment were directed to the experimental challenge for 11 days. All individuals were used to calculate zootechnical indices. As preliminary results, the treatments BACIL and SACCH obtained higher survival during the cultivation time (12%), lower feed conversion and higher spec ific growth rate when compared to the control. These data demonstrate that microbiological viability remained after diet extrusion, and brought zootechnical benefits to the host after supplementation.

   

BANKING MEMBERS:
Presidente - 1830781 - ADOLFO JATOBA MEDEIROS BEZERRA
Externo à Instituição - Bruno Corrêa da Silva
Externa à Instituição - Débora Machado Fracalossi - UFSC