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245084

GENETIC EVALUATION OF ADDITIVE AND HETEROTIC EFFECTS FOR GROWTH TRAITS IN CROSSING FOUR EGYPTIAN STRAINS OF CHICKENS

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Last updated: 22 Jan 2023

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Abstract

SUMMARY       A crossbreeding experiment was performed for four years using four synthesized strains of chickens involving Mandarah (MN), Matrouh (MT), Inshas (IN) and Silver Montazah (SM) to estimate direct additive genetic effects, maternal effects, direct heterosis and maternal heterosis for body weight at hatch (BW0), 4 (BW4), 8 (BW8), 12 (BW12) and 16(BW16) weeks of age as well as daily weight gains during the age intervals from hatch to 4 weeks (DG0-4), 4-8 weeks (DG4-8), 8-12 weeks (DG8-12) and 12 to 16 weeks (DG12-16). A total number of 34 sires and 230 dams from MT strain and 32 sires and 194 dams from MN strain were used to produce purebreds of MT and MN, two-way crossbreds (½MT½MN and ½MN½MT) and three-way crossbreds (½SM¼MT¼MN and ½IN¼MN¼MT). Heritability estimates were ranged from 0.13 to 0.57. The ranges in predicted breeding values (PBV) for body weights and daily gains in MN strain were slightly higher than in MT strain and were slightly higher in ½MN½MT than in ½MT½MN. PBVs were slightly higher in (½IN¼MN¼MT) than (½SM¼MT¼MN). The solutions of direct additive effects for body weights and daily gains were significantly in favour of MT strain, while the solutions of maternal effects were significantly in favour of MN strain. The percentages of direct and maternal heterosis were significant for all the studied traits and ranged from 12.3 to 64.0% and from 6.5 to 21.8%, respectively. The contrasts of three-way crosses were significant and superior in body weights and daily gains compared to two-way crosses.  

DOI

10.21608/ejap.2022.245084

Keywords

Egyptian chickens, crossbreeding, growth traits, direct additive and maternal effects, direct and maternal heterosis

Authors

First Name

Maher

Last Name

Khalil

MiddleName

Hassab Elnaby

Affiliation

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

Email

maher.khalil@fagr.bu.edu.eg

City

New Cairo

Orcid

0000-0002-6929-3011

First Name

Heba

Last Name

Hassan

MiddleName

A.

Affiliation

Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, 13736, Egypt, Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt

Email

-

City

-

Orcid

-

First Name

M.

Last Name

Iraqi

MiddleName

M.

Affiliation

Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, 13736, Egypt

Email

-

City

-

Orcid

-

First Name

G.

Last Name

El-Gendi

MiddleName

M.

Affiliation

Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, 13736, Egypt

Email

-

City

-

Orcid

-

First Name

A.

Last Name

EL Nagar

MiddleName

G.

Affiliation

Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, 13736, Egypt

Email

-

City

-

Orcid

-

Volume

59

Article Issue

5

Related Issue

35122

Issue Date

2022-06-01

Receive Date

2022-01-01

Publish Date

2022-06-01

Page Start

57

Page End

64

Print ISSN

0302-4520

Online ISSN

2735-3028

Article File

EJAP_Volume 59_Issue 5_Pages 57-64.pdf

PDF . 821.8kB

Link

https://ejap.journals.ekb.eg/article_245084.html

Detail API

https://ejap.journals.ekb.eg/service?article_code=245084

Order

8

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

-

Details

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Article

Created At

22 Jan 2023