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151899

GENETIC PARAMETERS OF BODY WEIGHT AND MEASUREMENTS TRAITS IN BALADI BLACK RABBITS

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Last updated: 22 Jan 2023

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Abstract

ABSTRACT:  A total of 250 progeny of 17 sires and 58 dams from Baladi Black breed population were used to estimate variance components and heritability of growth traits. Traits studied were individual body weight (BW12), body length (BL12), head length (HL12) and thigh circumference (TC12) all at 12 weeks of age. Single-trait Animal Model (DFREML) was used to estimate genetic variance components, as well as permanent environmental variation. Estimates of variance components were 0.52, 0.96, 0.91 and 0.81 for BW12, BL12, TC12 and HL12, respectively. Heritability estimates were 0.24, 0.36, 0.36 and 0.33 for BW12, BL12, TC12 and HL12 respectively. The proportions of variance due to permanent environmental effect of dams were 0.08, 0.05, 0.10 and 0.12 for BW12, BL12, TC12 and HL12, respectively. Results showed that out of the principal components (PC) calculated, the one represent 68.98 % of the total variance. The PC1 was 68.98 of the generalized variance. Principal component factor scores expound 77 % of the variation in the body weight of rabbits.  Conclusively, the use of orthogonal body shape characters (PC1) derived from the principal component factor solution could be more reliable in predicting body weight compared to the use of the original autocorrelated body measurements. This is because multicollinearity of interdependent explanatory variables could lead to false inferences when original body measurements are used as predictors. Key words: Body measurements, multicollinearity, Rabbits, Principal     Component  Analysis.

DOI

10.21608/ejrs.2020.151899

Keywords

body measurements, Multicollinearity, Rabbits, Principal Component Analysis

Authors

First Name

Mohmoud

Last Name

Gharib

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

mghreeb95@yahoo.com

City

Animal Production Research Institute

Orcid

-

First Name

Amira

Last Name

El-Deighadi

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

-

City

Animal Production Research Institute,

Orcid

-

First Name

Mohamed

Last Name

Saf Al-Nasr

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

-

City

Animal Production Research Institute

Orcid

-

First Name

Goerge

Last Name

Yonan

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

-

City

Animal Production Research Institute,

Orcid

-

First Name

Mogda

Last Name

Salem

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

-

City

Animal Production Research Institute,

Orcid

-

First Name

Lamiaa

Last Name

Abdel -Mawla

MiddleName

-

Affiliation

Animal Production Research Institute, Agriculture Research Center, Dokki, Cairo, Egypt (APRI),

Email

-

City

Animal Production Research Institute,

Orcid

-

Volume

30

Article Issue

2

Related Issue

22408

Issue Date

2020-07-01

Receive Date

2020-02-25

Publish Date

2020-07-01

Page Start

111

Page End

123

Print ISSN

1110-2594

Online ISSN

2682-3330

Article File

EJRS_Volume 30_Issue 2_Pages 111-123.pdf

PDF . 755.2kB

Link

https://ejrs.journals.ekb.eg/article_151899.html

Detail API

https://ejrs.journals.ekb.eg/service?article_code=151899

Order

2

Type

Original Article

Type Code

868

Publication Type

Journal

Publication Title

Egyptian Journal of Rabbit Science

Publication Link

https://ejrs.journals.ekb.eg/

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Details

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Article

Created At

22 Jan 2023