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57311

Effects of dietary malic acid on growth, nutrient utilization and serum biochemical indices of Nile tilapia (Oreochromis niloticus) fingerlings

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

ANIMAL PRODUCTION

Abstract

A 90 days feeding trial was conducted to investigate the effect of dietary supplementation with malic acid on growth, nutrient utilization and some hematological parameters of Nile tilapia (Oreochromis niloticus). Three isonitrogenous (300 g CP kg−1) and isocaloric (14.90 MJ gross energy kg−1) diets were formulated. The control diet (D1) contained no added of malic acid. Two diets were supplemented with 0.5% (D2) and 1.0% (D3) malic acid. A set of 180 fish of O. niloticus L. mono-sex male fingerlings average initial weight of 7.56 ±0.06 g were randomly distributed into nine plastic tanks (0.45 m3 for each) representing the three treatments studied. Twenty fish were randomly stocked into each tank with three replications for each treatment. At the end of the feeding trial, O. niloticus offered the control diet showed lower growth and feed utilization than all those fed malic acid supplemented diets. Fish fed the diet D3 showed the highest body weight (BW) weight gain (WG), specific growth rate (SGR), feed intake (FI), and the best feed conversion ratio (FCR) and protein efficiency ratio (PER). Supplementation of malic acid (5 g or 10 g kg-1) increased hemoglobin (Hb), hematocrit (Htc) and red blood cell count (RBCs) of Nile tilapia, but white blood cells (WBCs) of did not significantly (P>0.05) affected by malic acid supplementation. The highest level of Hb, Htc and RBC was recorded by fish fed 10 g kg-1. In the same direction supplementation the basal diet with 5 g or 10 g kg-1 malic acid significantly increased the levels of serum Albumin u/L (P<0.001), Globulin (P<0.05) and total protein (P<0.001). The present observations suggest that, growth and feed utilization of O. niloticus can be enhanced with a supplementation of 1.0% malic acid in the diet.

DOI

10.21608/assjm.2018.57311

Keywords

Growth, nutrient, organic acid, Nile tilapia

Authors

First Name

magdy

Last Name

soltan

MiddleName

-

Affiliation

Fac. Agric. Moshtohor, Benha University, Egypt1

Email

magdy.soltan@fagr.bu.edu.eg

City

-

Orcid

-

Volume

56

Article Issue

4th ICBAA

Related Issue

8694

Issue Date

2018-04-01

Receive Date

2018-01-06

Publish Date

2018-04-01

Page Start

49

Page End

56

Print ISSN

1110-0419

Online ISSN

2974-4830

Link

https://assjm.journals.ekb.eg/article_57311.html

Detail API

https://assjm.journals.ekb.eg/service?article_code=57311

Order

10

Type

Original Article

Type Code

841

Publication Type

Journal

Publication Title

Annals of Agricultural Science, Moshtohor

Publication Link

https://assjm.journals.ekb.eg/

MainTitle

Effects of dietary malic acid on growth, nutrient utilization and serum biochemical indices of Nile tilapia (Oreochromis niloticus) fingerlings

Details

Type

Article

Created At

22 Jan 2023