179614

THE GENETIC AND NON-GENETIC AFFECT ON CARCASS CHARACTERISTICS OF NEW ZEALAND WHITE AND BALADI BLACK RABBITS

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

-

Abstract

Data collected on 120random male at 12 weeks of age, from New Zealand white and Baladi Black rabbit. Data were analyzed applying multi-trait animal model ofcarcass characteristicsto obtain proportion of the phenotypic variance due to additive genetic effects (h2);common litter effects (c2);  random error effects (e2); genetic (rG), common litter (rC), environmental (rE) and phenotypic (rP) correlations.Datawere carried out by weighed least-squares means method in the procedure GLM of statistical software SAS(2003) to obtain least squares of effects for breed, parity and season and significant. Heritability estimateswere mostly moderate 0.20, 0.12 and 0.37 for live weight at slaughter, weight after bleedingand weight with viscera and without head,were moderate and high and ranged from 0.29 to 54 for edible parts, were moderate and ranged from 0.30 to 0.35 for dressing yield, alsowere low and moderate and ranged from 0.03 to 0.33 for inedible parts.Common litter effects Estimates were 0.37, 0.55 and 0.55 for live weight at slaughter, weight after bleedingand weight with viscera and without head, were ranged from 0.28 to 0.60 for edible parts, were estimates ranged from 0.38 to 0.42for dressing yield and ranged from 0.42 to 0.55 inedible parts.All possible genetic correlations betweencarcasscharacteristics were moderate to highandpositive except among TEDand both of LU and FUR, also between DR1 and VIS were negative.Common litter correlationsamongrecords ofcarcasscharacteristicswere mostly moderate or high, positiveand negative.Correlations ofenvironmental betweencarcasscharacteristicswere mostly moderate or high, positive and negative. Estimates of (rP)between records of different carcasscharacteristicswere mainly positive and moderate or high magnitude. No significant differences of breed on carcass characteristics except for giblet. New Zealand White had highest of giblet and leaver. In mostly parity affected significantly on carcass characteristics, the highest value during first parity except for giblet and leaver were highest value during second parity. Contrary other traits were insignificantly.Most carcass characteristics were higher in winter months than other seasons.

DOI

10.21608/asajs.2021.179614

Keywords

Edible parts, dressing yield %, inedible parts, heritability, genetic and phenotypic correlations

Authors

First Name

Amira S.

Last Name

El-Deighadi

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

First Name

M. G.

Last Name

Gharib

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

First Name

M.I

Last Name

seif EL-Nasr

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

First Name

G. E

Last Name

Yonan

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

First Name

Mogda M.

Last Name

Salem

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

First Name

Lamia F. Abdel

Last Name

Mawla

MiddleName

-

Affiliation

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

Email

-

City

-

Orcid

-

Volume

4

Article Issue

11

Related Issue

23398

Issue Date

2021-07-01

Receive Date

2021-06-24

Publish Date

2021-07-01

Page Start

141

Page End

162

Print ISSN

2537-0804

Online ISSN

2537-0855

Link

https://asajs.journals.ekb.eg/article_179614.html

Detail API

https://asajs.journals.ekb.eg/service?article_code=179614

Order

6

Type

المقالة الأصلية

Type Code

937

Publication Type

Journal

Publication Title

المجلة العربية للعلوم الزراعية

Publication Link

https://asajs.journals.ekb.eg/

MainTitle

THE GENETIC AND NON-GENETIC AFFECT ON CARCASS CHARACTERISTICS OF NEW ZEALAND WHITE AND BALADI BLACK RABBITS

Details

Type

Article

Created At

22 Jan 2023