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IMPACT OF INTERACTION BETWEEN GENOTYPE AND SEX ON PRODUCTIVE PERFORMANCE AND CARCASS CHARACTERISTICS OF CHICKEN

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Last updated: 04 Jan 2025

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Abstract

An experiment was conducted to evaluate the impact of naked neck gene, sex and their interaction on productive parameters and carcass characteristics of chicken. Naked neck (Nana) females were artificially inseminated with naked neck (Nana) males. According to the pervious mating, three genotypes (NaNa, Nana and nana) were produced. All chicks were reared under the same environmental, managerial and hygienic conditions from hatching time to 16 weeks of age. At 16 weeks of age 60 birds (10 bird /sex /genotype) were randomly chosen for carcass evaluation. The present results revealed that the presence of naked neck gene in a single state significantly increased body weight of chicken compared to nana genotype. With respect to body measurements, it could be noticed that the NaNa and Nana genotypes were significantly higher lengths of keel and shank compared to normally feathered genotype. Similar trend was obtained for head appendages. As expected the presence of naked neck in a single or double manner significantly reduced feather percentage by about 20.7 and 37.5% respectively. Percentages of dressing and breast muscles of NaNa and Nana genotypes were significantly higher than that of nana ones. Inversely, the abdominal fat percentage was significantly reduced in birds carrying naked neck gene. The naked neck gene in both cases associated with significantly increased hematocrit level and significantly decreased plasma cholesterol. Body weights, comb length, dressing percentage and blood parameters were significantly affected by sex. With respect to interaction between genotype and sex, it could be observed that the body weights, comb length, edible meat parts, abdominal fat and blood parameters were significantly affected by interaction between naked neck gene and sex. In conclusion, under summer season of Egypt, productive performance and carcass measurements could be improved by incorporating naked neck (Na) gene for increasing relative breast muscles and relative meat yield and decreased relative abdominal fat weight.

DOI

10.21608/jappmu.2008.217768

Keywords

naked neck gene, sex, productive performance, carcass traits

Authors

First Name

U.

Last Name

Ali,

MiddleName

M.

Affiliation

Poultry Production Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt

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Volume

33

Article Issue

3

Related Issue

31000

Issue Date

2008-03-01

Receive Date

2008-02-19

Publish Date

2008-03-01

Page Start

1,883

Page End

1,894

Print ISSN

2090-3642

Online ISSN

2090-3723

Link

https://jappmu.journals.ekb.eg/article_217768.html

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https://jappmu.journals.ekb.eg/service?article_code=217768

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8

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Original Article

Type Code

876

Publication Type

Journal

Publication Title

Journal of Animal and Poultry Production

Publication Link

https://jappmu.journals.ekb.eg/

MainTitle

IMPACT OF INTERACTION BETWEEN GENOTYPE AND SEX ON PRODUCTIVE PERFORMANCE AND CARCASS CHARACTERISTICS OF CHICKEN

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Article

Created At

22 Jan 2023