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104137

GROWTH PERFORMANCE, FEED UTILIZATION AND GONAD DEVELOPMENT OF DIPLOID AND TRIPLOID NILE TILAPIA, OREOCHROMIS NILOTICUS

Article

Last updated: 25 Dec 2024

OverviewSimilar Items

Subjects

-

Tags

Fish nutrition.

Abstract

A 16 week experiment was conducted to evaluate growth performances, gonads development, carcass and proximateanalysis of diploid and triploidNile tilapia, Oreochromisniloticus. Triploid were induced by inhibiting the second polar body formation in fertilized eggs using heat chock. Newly hatched fry were transferred and reared in 5 liter aquaria for three weeks and then transferred to 80 L indoor aquaria, provided with a recirculatedwater for 8 weeks. After the rearing period diploid and triploid fingerlings transferred into 300 liter tanks and fed 30% protein diet to apparent satiation. At the end of feeding trial (16 weeks), triploid O. niloticushad significant heaviest, longest and deepest bodies compared with diploids and the same trend was also observed for weight gain and specific growth rate. Triploid O. niloticus showed the best feed conversion ratio and protein efficiency ratio compared to diploids.Gonado-somatic indices (GSI) of triploid males and females were significantly smaller than diploids. On the other hand,Hepato-somatic indices, (HSI) of triploid O. niloticusmales were larger than that of diploid with significant differences between the two groups. However, HSI of triploid females were smaller than that of diploid females but the differences were insignificant.Carcasses of triploids O. niloticushad the highest percentages of dressing and flesh and the lowestby-products compared to diploid.Also, triploid flesh contained the highest (P<0.05) percentages of fat and the lowest ash. Protein content and dry matter did not significantly (P>0.05) affected by ploidy induction in O. niloticus.

DOI

10.21608/ejnf.2017.104137

Keywords

Tripliody, Growth, carcass, Sexual Maturation and Nile Tilapia

Authors

First Name

M.A.

Last Name

Soltan

MiddleName

-

Affiliation

Animal Production Department, Faculty of Agriculture, Benha University, Benha, Egypt

Email

magdy.soltan@fagr.bu.edu.eg

City

-

Orcid

-

First Name

M.Y.

Last Name

AbouZead

MiddleName

-

Affiliation

World fish, Regional Research Center for Africa and West Asia, Abassa, Sharkia, Egypt

Email

-

City

-

Orcid

-

First Name

W.E.

Last Name

Mohamed

MiddleName

-

Affiliation

Central Laboratory for Aquaculture Research at Abassa, Sharkia Governorate, Egypt

Email

-

City

-

Orcid

-

Volume

20

Article Issue

Issue 2 Special

Related Issue

15744

Issue Date

2017-11-01

Receive Date

2017-07-20

Publish Date

2017-11-01

Page Start

297

Page End

305

Print ISSN

1110-6360

Article File

EJNF_Volume 20_Issue Issue 2 Special_Pages 297-305.pdf

PDF . 508.2kB

Link

https://ejnf.journals.ekb.eg/article_104137.html

Detail API

https://ejnf.journals.ekb.eg/service?article_code=104137

Order

28

Type

Original Article

Type Code

1,061

Publication Type

Journal

Publication Title

Egyptian Journal of Nutrition and Feeds

Publication Link

https://ejnf.journals.ekb.eg/

MainTitle

GROWTH PERFORMANCE, FEED UTILIZATION AND GONAD DEVELOPMENT OF DIPLOID AND TRIPLOID NILE TILAPIA, OREOCHROMIS NILOTICUS

Details

Type

Article

Created At

22 Jan 2023