Dietary Ocimum gratissimum Essential Oil Improves the Antioxidant Status and Maintains the Performance of Macrobrachium rosenbergii Juveniles

This study analyzed the performance, antioxidant status, hepatopancreatic lipoperoxidation, and proximate composition of Macrobrachium rosenbergii juveniles fed diets supplemented with clove basil (Ocimum gratissimum) essential oil (EO-OG). A total of 360 M. rosenbergii (initial weight 0.028 g ± 0.0...

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Authors: Ballester, Eduardo Luis Cupertino; Costa, Wilson Gilberto da Silva; do Nascimento Ferreira, Caio Henrique [UNESP]; Retcheski, Milena Cia; Cazarolli, Luisa Helena; Schwengber, Gabriel Henrique; Mauerwerk, Marlise Teresinha; Pinheiro, Carlos Garrido; Heinzmann, Berta Maria; Baldisserotto, Bernardo; de Souza Valente, Cecília
Format: Article
Status:Published version
Publication date:2025
Country:Brasil
Institution:UNESP
Repository:Repositório Institucional da UNESP
Language:English
OAI Identifier:oai:repositorio.unesp.br:11449/300553
Online Access:http://dx.doi.org/10.3390/app15052745
https://hdl.handle.net/11449/300553
Access Level:Open access
Keyword:clove basil
crustacean welfare
enzymatic defense
giant river prawn
Summary:This study analyzed the performance, antioxidant status, hepatopancreatic lipoperoxidation, and proximate composition of Macrobrachium rosenbergii juveniles fed diets supplemented with clove basil (Ocimum gratissimum) essential oil (EO-OG). A total of 360 M. rosenbergii (initial weight 0.028 g ± 0.004) were randomly divided into four experimental groups with six replications each (n = 6). The prawns were fed diets with different EO-OG inclusion levels: 0.0, 1.0, 2.0, and 3.0 g kg−1 EO-OG. After a 42-day feeding trial, dietary EO-OG showed no significant effect on prawn performance or carcass proximate composition, except on final antenna length. Prawns fed 3.0 g kg−1 EO-OG displayed a 1.2- to 1.3-fold longer final antenna length than prawns from all other experimental groups. Likewise, prawns fed 3.0 g kg−1 EO-OG presented a 2.6- to 3.2-fold higher catalase activity than prawns from all other experimental groups. Prawns fed EO-OG, regardless of the inclusion level, showed a 1.6- to 1.7-fold decreased hepatopancreatic lipoperoxidation compared to the control group. Therefore, EO-OG has been demonstrated to be a potential management tool as a non-nutritional dietary immunostimulant and animal welfare promoter for freshwater prawn farming, without affecting animal performance. This study recommends the dietary inclusion level of 3.0 g kg−1 EO-OG for M. rosenbergii juveniles.

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