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427085

EFFECT OF OLIVE LEAF EXTRACT ON GROWTH PERFORMANCE, FEED UTILIZATION AND PHYSIOLOGICAL STATUS OF NILE TILAPIA

Article

Last updated: 11 May 2025

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Subjects

-

Tags

Physiology

Abstract

The purpose of this study was to examine how dietary olive leaf extract (OLE) affected the Nile tilapia's growth performance, feed utilization, physiological and histological status. In twelve 1.0 m³ hapas, 180 Nile tilapia fishes, each weighing 11.82±0.02 g and with a body length of 8.80±0.10 cm, were randomly distributedin four groups. Group one received 1% kg-1OLE, Group two received 1.5% kg-1OLE, Group three received 2% kg-1OLE, and the control group received no olive leaf extract for ninety days. At the end of the trial, group 3(2% kg-1 of OLE) had considerably higher weight gain, length gain, and specific growth rate values than other experimental groups. Additionally, the trail groups fed different amounts of OLE showed improvements in feed intake and protein intake values. The group fed the diet with OLE had significantly lower levels of blood albumin, and triglycerides compared to control. Group three (2% kg-1 of OLE) had significantly greater levels of blood total protein and globulin, as well as alkaline phosphatase, ALT, AST, amylase, lipase, and protease activities when compared to other groups. The results showed some histological alterations in the liver, especially in Group 1, while the tissues of the intestine and spleen appeared normalwhen treated with OLE. According to the current findings, diets containing 2% kg-1 of OLE were effective feed additives and may help in enhancement of utilization of food, organo-somatic indices, and some biochemical items of Nile tilapia

DOI

10.21608/ejap.2025.362627.1107

Keywords

Hapas, olive leaf extract, Physiological and Histological Status

Authors

First Name

Heba

Last Name

El Nabi

MiddleName

-

Affiliation

Fish Resources and Aquaculture Department, Faculty of Environmental Agricultural Sciences, Arish University, Egypt

Email

habdenabi@aru.edu.eg

City

Cairo

Orcid

0000-0002-6866-7122

First Name

Wedad

Last Name

Al-Sherif

MiddleName

H.

Affiliation

Animal Production Department, Faculty of Environmental Agricultural Sciences, Arish University, Egypt.

Email

-

City

-

Orcid

-

First Name

Tabark

Last Name

Mohamed

MiddleName

A.

Affiliation

Animal Production Department, Faculty of Environmental Agricultural Sciences, Arish University, Egypt.

Email

-

City

-

Orcid

-

First Name

Rewaa

Last Name

Hosney

MiddleName

M.

Affiliation

Animal Production Department, Faculty of Environmental Agricultural Sciences, Arish University, Egypt.

Email

-

City

-

Orcid

-

First Name

Ghadeer

Last Name

Dokdok

MiddleName

A.

Affiliation

Fish Resources and Aquaculture Department, Faculty of Environmental Agricultural Sciences, Arish University, Egypt

Email

-

City

-

Orcid

-

Volume

62

Article Issue

2

Related Issue

55578

Issue Date

2025-05-01

Receive Date

2025-02-24

Publish Date

2025-05-11

Page Start

89

Page End

101

Print ISSN

0302-4520

Online ISSN

2735-3028

Article File

EJAP_Volume 62_Issue 2_Pages 89-101.pdf

PDF . 934.0kB

Link

https://ejap.journals.ekb.eg/article_427085.html

Detail API

http://journals.ekb.eg?_action=service&article_code=427085

Order

2

Type

Original Article

Type Code

1,298

Publication Type

Journal

Publication Title

Egyptian Journal of Animal Production

Publication Link

https://ejap.journals.ekb.eg/

MainTitle

EFFECT OF OLIVE LEAF EXTRACT ON GROWTH PERFORMANCE, FEED UTILIZATION AND PHYSIOLOGICAL STATUS OF NILE TILAPIA

Details

Type

Article

Created At

11 May 2025