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369215

NUTRITIONAL AND ENVIRONMENTAL TOXICOLOGICAL INVESTIGATIONS ON FISH FARMS IN FAYOUM GOVERNORATE, EGYPT

Article

Last updated: 03 Jan 2025

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Subjects

-

Tags

Fish / aquaculture

Abstract

This study was carried out in two fish farms in El- Fayoum Governorate to investigate water quality, evaluate the effect of chemical fertilizers and artificial diet on the performance and feed efficiency of Oreochromis niloticus and Mugil cephalus, and determine pesticide residues in water and reared fish. Average values of water temperature in fish farms and water source ranged between 25.6 and 30.6°C. The highest values of dissolved oxygen were observed during April while the lowest values were found in June and July. There was a negative relationship between water temperature and dissolved oxygen, a positive relationship was found between temperature and water salinity. The highest values of weight gain (270.90, 269.20g), specific growth rate (1.15,1.16), feed consumption (240.60, 270.48g) and feed conversion ratio (0.89, 1.01) of O. niloticus and M. cephalus, respectively were found in fish fed on artificial feed and reared in fertilized ponds when com- pared to fish fed on artificial dictionly or reared in fertilized ponds without supplementary feed. The pesticide residues of chlorpyrifos ethyl and fen- propathrin were detected in water at mean levels ranged 0.10 0.25 mg/l. Both fish species con- tained fenitrothion residues at values (0.525 mg/ kg and 0.255 mg/kg for O. niloticus and M. cephalus, respectively) which are higher than permis- sible limits. Although the residues of fenitrothion and carbaryl were not detected in water, they were found in both fish species which could be at- tributed to the ability of these pesticides to bioacumulate in the aquatic organisms.

DOI

10.21608/vmjg.2002.369215

Keywords

fish farms, Oreochromis niloticus, Mugil cephalus, artificial feeding, pond fertilization, fish performance, water quality, Pesticide Residues

Authors

First Name

M

Last Name

SHEREIF

MiddleName

-

Affiliation

Faculty of Agriculture, Ain Shams University

Email

-

City

-

Orcid

-

First Name

T

Last Name

SHAHAT

MiddleName

-

Affiliation

National Institute of Oceanography and Fisheries.

Email

-

City

-

Orcid

-

First Name

A

Last Name

ZIDAN

MiddleName

-

Affiliation

Faculty of Agriculture, Ain Shams University

Email

-

City

-

Orcid

-

First Name

A

Last Name

METWALLY

MiddleName

-

Affiliation

National Institute of Oceanography and Fisheries

Email

-

City

-

Orcid

-

Volume

50

Article Issue

1

Related Issue

49346

Issue Date

2002-01-01

Receive Date

2024-07-25

Publish Date

2002-01-01

Page Start

87

Page End

102

Print ISSN

1110-1423

Online ISSN

2537-1045

Article File

VMJG_Volume 50_Issue 1_Pages 87-102.pdf

PDF . 4.8MB

Link

https://vmjg.journals.ekb.eg/article_369215.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=369215

Order

369,215

Type

Original Article

Type Code

544

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

NUTRITIONAL AND ENVIRONMENTAL TOXICOLOGICAL INVESTIGATIONS ON FISH FARMS IN FAYOUM GOVERNORATE, EGYPT

Details

Type

Article

Created At

23 Dec 2024