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305131

ESTIMATION OF HERITABILITY, GENETIC CORRELATION OF BODY WEIGHT, AND MODELING OF GROWTH CURVE IN TWO CHICKEN STRAINS

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Last updated: 03 Jan 2025

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Abstract

The purpose of this study was to use nonlinear models (NLN)to characterize the growth pattern and estimate the heritability (h2), the genetic (rg), and phenotypic(rp < /sub>) correlation of the body weight (BW) in two distinct genotypes of chicken raising under Egyptian conditions. A data set of 500 chickens with pedigree information was gathered for this study. For this purpose, the BW was measured at hatching (BW0),4 weeks (BW4), 8 weeks (BW8), and 12 weeks (BW 12) of age. Three NLN models (Logistic, Gompertz, and Von Bertalanffy) were used. Using Wombat software, a multi-trait animal model with a restricted maximum likelihood procedure was used to estimate h2, rg, and rp < /sub>for BW.The results showed that Golden Sabahi (GS) had a significantly higher weight than White Leghorn (WL). The growth curve parameters A (mature body weight), B (biological constant), and K (growth rate) were 3989.9, 0.7853, and 0.0624 for WL and 4332.6,0.7897, and 0.0642 for GS in the von  Bertalanffy model, 2152.8, 3.8096, and 0.1322 for WL chickens and 2368, 3.8594, and 0.1350 for GS chickens in the Gompertz model, 1304.5, 19.0421, and 0.3382 for WL chickens and 1455.6, 19.6116, and 0.3411 for GS chickens in the logistic model. Three models represented the growth of the two breeds using goodness-of-fit metrics (R2, MSE, and AIC). Heritability estimates of BW at 0, 4, and 8 were higher in GS than WL, while the estimate of BW at 12 weeks of age was almost similar in the both strains GS and WL (0.1). Between BW0 and BW12, there were strong positive genetic and phenotypic correlations compared by the rest of growth traits. Based on the findings of this investigation, we recommend that the two strains can be utilized for selective breeding between the ages of 4 and 8 weeks to increase the overall genetic improvement of growth traits.

DOI

10.21608/epsj.2023.305131

Keywords

Egyptian, Growth curve, Genetic parameter, Nonlinear models, productive

Authors

First Name

Walid

Last Name

Habashy

MiddleName

SA

Affiliation

ANIMAL AND POULTRY PRODUCTION DEPARTMENT

Email

walidh55@gmail.com

City

Damanhour

Orcid

0000-0002-2009-5145

First Name

Ibrahim

Last Name

Elkhaiat

MiddleName

Arafa

Affiliation

Department of Poultry Production, Faculty of Agriculture, Kafrelsheikh University, Kafr Elsheikh, Egypt.

Email

ibrahim.elkhaiat@agr.kfs.edu.eg

City

Kafr Elsheikh

Orcid

-

First Name

Ghada

Last Name

Abd El-latif

MiddleName

Mohamed

Affiliation

assistant. lecturer. Ghada M. Abd El-latif lecturer of Poultry Breeding Department of Poultry Production Faculty of Agriculture Alexandria University

Email

dr.ghada.mohamed.2016@gmail.com

City

Eygpt

Orcid

-

Volume

43

Article Issue

2

Related Issue

41957

Issue Date

2023-06-01

Receive Date

2023-03-29

Publish Date

2023-06-01

Page Start

308

Page End

318

Print ISSN

1110-5623

Online ISSN

2090-0570

Article File

EPSJ_Volume 43_Issue 2_Pages 308-318.pdf

PDF . 736.8kB

Link

https://epsj.journals.ekb.eg/article_305131.html

Detail API

https://epsj.journals.ekb.eg/service?article_code=305131

Order

7

Type

Original Article

Type Code

493

Publication Type

Journal

Publication Title

Egyptian Poultry Science Journal

Publication Link

https://epsj.journals.ekb.eg/

MainTitle

ESTIMATION OF HERITABILITY, GENETIC CORRELATION OF BODY WEIGHT, AND MODELING OF GROWTH CURVE IN TWO CHICKEN STRAINS

Details

Type

Article

Created At

23 Dec 2024