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IMPACT OF USING CASSAVA ROOT MEAL AND DIFFERENT COLORING AGENTS ON LAYING HEN PERFORMANCE AND EGG YOLK COLOR

Article

Last updated: 22 Jan 2023

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Abstract

In this study, 180 Lohman laying hens 50 weeks of age were randomly distributed into 5 groups each has 36 hens in 4 replicates to evaluate the impact of using cassava root meal (CRM) and different coloring agents on laying hen performance, egg quality, egg yolk color and economical efficiency. The 1st diet was mainly formulated from yellow corn as a major source of xanthophylls for egg yolk color and served as the control. In the 2nd diet, CRM replaced yellow corn at 50% without coloring agents. Three more diets were mainly formulated from diet 2 by adding 2% corn gluten meal, 2.5% potato veins (as a natural source of xanthophylls) or 0.2% canthaxanthin (as synthetic source of xanthophylls) to contain the same amount of xanthophylls as the control diet (12 mg / kg).The overall results showed that there were no significant differences in average values of egg production and feed conversion ratio due to dietary treatments. While, egg weight and feed intake values were significantly decreased with feeding laying hen on diets containing CRM either alone or with adding different sources of xanthophylls compared to those of the control diet. Also, there were no significant differences in average values of egg quality (shape index, shell thickness, Hugh units, egg total lipids and egg cholesterol) due to dietary CRM or using different sources of xanthophylls compared to control diet. While, the egg yolk color score were significantly improved in laying hens fed diet incorporated with either corn gluten meal, potato veins or canthaxanthin compared to laying hen fed diet containing only CRM. Results showed that the average values of economical efficiency were improved due to feeding laying hen on diets containing CRM either alone or with adding different sources of xanthophylls. It could be concluded that, cassava root meal could be used with adding different sources of xanthophylls to save about 50% of yellow corn in laying hen diets without any detrimental effect on laying hen performance, egg yolk color and economical efficiency of egg production during summer season.    

DOI

10.21608/epsj.2018.22388

Keywords

Laying hen, cassava root meal, coloring agents, egg yolk color

Authors

First Name

mamdouh

Last Name

omar

MiddleName

-

Affiliation

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Email

mamdouh20466@yahoo.com

City

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Orcid

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Volume

38

Article Issue

4

Related Issue

4270

Issue Date

2018-12-01

Receive Date

2018-09-04

Publish Date

2018-12-19

Page Start

959

Page End

968

Print ISSN

1110-5623

Online ISSN

2090-0570

Link

https://epsj.journals.ekb.eg/article_22388.html

Detail API

https://epsj.journals.ekb.eg/service?article_code=22388

Order

3

Type

Original Article

Type Code

493

Publication Type

Journal

Publication Title

Egyptian Poultry Science Journal

Publication Link

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

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Article

Created At

22 Jan 2023