Beta
5419

EFFECT OF EARLY SELECTION FOR BODY WEIGHT, KEEL LENGTH AND BREAST CIRCUMFERENCE ON EGG PRODUCTION TRAITS IN INSHAS STRAIN OF CHICKENS

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

-

Abstract

Inshas strain of chicken was subjected to one cycle of early selection for body weight, keel length and breast circumference effect on egg production traits. Best linear unbiased prediction (BLUP) was used for predicting the breeding values and ranking then selecting hens. The selection differentials in G1 were equal to 2.6, 16.7, 72.4, 58.7 g, 0.1, -0.1, 0.6 cm, -9.0 g, 12.0 d, -16.0 egg, 0.6 g, -668 g, -17.0 egg, 1.9 g and -731 g for body weight at hatch (BWH), body weight at 4 weeks of age (BW4), body weight at 8 weeks of age (BW8), body weight at 12 weeks of age (BW12), Shank length (SL), Keel length (KL), Breast circumference (Br), body weight at sexual maturity (BWSM), age at sexual maturity (ASM), egg number at 90 d of production (EN1), egg weight at 90 d of production (EW1), egg mass at 90 d of production (EM1), ), egg number at150 d of production (EN2), egg weight at 150 d of production (EW2), egg mass at 150 d of production (EM2), respectively. These values in stander units were equal to 0.9, 0.3, 0.5, 0.4, 0.01, -0.2, 0.3, -0.06, 0.77, -3.5, 0.15, -3.7, -1.5, 0.5 and -1.3, respectively. The realized genetic gain exceeded the expected genetic gain for BWH, BW4, BW8, BW12, SL, Br, ASM and EW2 2.4, 13.7, 51.9, 39.9, 0.3, 1.4, 5.4, 0.7 vs. 2.0, 3.9, 19.0, 11.0, 0.1, 1.0, 1.9 and 0.1. From the results of the present study, selection was effective in improving body weight traits by the generation (G1) of study. The heritability estimates in this study were moderate to high for most of the traits studied. This is an encouraging factor for more intense selection within the Inshas local chicken population.

DOI

10.21608/epsj.2016.5419

Keywords

Local chicken- BLUP- breeding values and responses of selection

Authors

First Name

R.Sh.

Last Name

Abou El-Ghar

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Ministry of Agriculture, Egypt

Email

-

City

-

Orcid

-

First Name

Ragaa

Last Name

Abd El-Karim

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Ministry of Agriculture, Egypt

Email

-

City

-

Orcid

-

Volume

36

Article Issue

2

Related Issue

922

Issue Date

2016-06-01

Receive Date

2018-02-17

Publish Date

2016-06-01

Page Start

375

Page End

387

Print ISSN

1110-5623

Online ISSN

2090-0570

Link

https://epsj.journals.ekb.eg/article_5419.html

Detail API

https://epsj.journals.ekb.eg/service?article_code=5419

Order

1

Type

Original Article

Type Code

493

Publication Type

Journal

Publication Title

Egyptian Poultry Science Journal

Publication Link

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

MainTitle

EFFECT OF EARLY SELECTION FOR BODY WEIGHT, KEEL LENGTH AND BREAST CIRCUMFERENCE ON EGG PRODUCTION TRAITS IN INSHAS STRAIN OF CHICKENS

Details

Type

Article

Created At

22 Jan 2023