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267927

GENETIC PARAMETERS AND EPIGENETIC TREND OF LITTER SIZE TRAITS OF ACCLIMATIZED NEW-ZEALAND WHITE RABBITS IN EGYPT

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Last updated: 22 Jan 2023

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Abstract

ABSTRACT: A total of 93 litters produced from 36 does pedigreed by 13 dams and 9 sires, were analyzed using Animal Model Procedure (MTDFREML). Traits assessed were Litter Size traits, at birth, LSB; at 21 days, LS21 and at weaning, LSW (at 35 days) on two consecutive years. Heritability estimates of all considered litter traits were low. Genetic correlations among LSB and LSW were moderate and positive (0.490). The ranges of the NZW does transmitting ability (TA) were 0.814, 0.278 and 0.168 bunny for LSB; LS21 and LSW traits, resp. The percentages of positive breeding values estimate were 48.7, 48.7 and 56.4% for LSB; LS21 and LSW traits, rasp. Comparable significant moderate Pearson and Spearman correlation were obtained among BLUP's values& Ranks of the studied traits and they could both especially in cases with complexity of computations. Epigenetic Trend (EPG) with parities, the highest for Litter Size traits response was to the first parity. LS showed that epigenetic trend with Year-season (Y-S) effects gave better positive trends during good environmental circumstances and genetic expression could possibly change one environmental circumstance to another. Conclusively, this study recommends providing the acclimated New Zealand rabbits in Egypt more consideration and genetic improvement through selection to reach the performance of the standard breed due to the significant amounts of the trait's non-additional genetic component.  
 
 

DOI

10.21608/ejrs.2022.267927

Keywords

Rabbits, litter size traits, heritability, BLUP’s, pigenetic trend

Authors

First Name

Nagy

Last Name

Hassan

MiddleName

-

Affiliation

Animal Production Research Institute (APRI), Agriculture Research Center (ARC), Egypt.

Email

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City

Agriculture Research Center (ARC), Egypt.

Orcid

-

First Name

Ahmed

Last Name

Abdel-Ghany

MiddleName

-

Affiliation

Dept. of Anim. Prod., Fac. of Agric., Suez Canal Univ. 41522. Ismailia, Egypt.

Email

-

City

ac. of Agric., Suez Canal Univ. 41522. Ismailia, Egypt.

Orcid

-

First Name

Safaa

Last Name

Sanad

MiddleName

-

Affiliation

Animal Production Research Institute (APRI), Agriculture Research Center (ARC), Egypt.

Email

-

City

Agriculture Research Center (ARC), Egypt.

Orcid

-

First Name

Hassan

Last Name

Abd El-Halim

MiddleName

-

Affiliation

Animal Production Research Institute (APRI), Agriculture Research Center (ARC), Egypt.

Email

-

City

Agriculture Research Center (ARC), Egypt.

Orcid

-

First Name

Mahmoud

Last Name

Gharib

MiddleName

-

Affiliation

Dept. of Anim. Prod., Fac. of Agric., Suez Canal Univ. 41522. Ismailia, Egypt

Email

mghreeb95@yahool.com

City

Fac. of Agric., Suez Canal Univ. 41522. Ismailia, Egypt

Orcid

-

Volume

32

Article Issue

2

Related Issue

29918

Issue Date

2022-07-01

Receive Date

2022-10-31

Publish Date

2022-07-01

Page Start

163

Page End

180

Print ISSN

1110-2594

Online ISSN

2682-3330

Article File

EJRS_Volume 32_Issue 2_Pages 163-180.pdf

PDF . 666.9kB

Link

https://ejrs.journals.ekb.eg/article_267927.html

Detail API

https://ejrs.journals.ekb.eg/service?article_code=267927

Order

267,927

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