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197379

Impact of adding dietary different levels of protected methionine on wool characteristics, ultrastructure, and blood components of Barki sheep

Article

Last updated: 04 Jan 2025

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Abstract

Twenty-five non-pregnant adult Barki ewes were used to investigate the effect of the addition of various levels of rumen-protected methionine as a feed additive on some wool characteristics, blood components, and wool ultrastructure. Animals were divided according to live body weight and wool measurements into 5 groups. The control group (G1) was fed a basal diet without any supplementations, while G2, G3, G4, and G5  were fed the basal diet supplemented with 6, 9, 12, and 15 g methionine /head/day, respectively, for six months. Wool samples were collected at the end of the experiment to record some wool measurements, such as fiber diameter, staple length, staple strength, elongation, point of break, and clean wool yield. Blood samples were collected to determine some blood biochemicals. Results showed that adding rumen-protected methionine for six months significantly enhanced the wool characteristics of Barki ewes, such as staple length, staple strength, elongation, point of break, fiber diameter, and clean wool yield. Supplementing dietary methionine affected coarse fiber wool scale properties of Barki ewes. The minimum value of scale width was recorded in G2, while the maximum value of scale width was recorded in G5. Also, G2 showed the highest value of scale distance to the edge. Wool of G4 recorded the lowest value of coarse fiber diameter. Methionine supplementation resulted in a slight effect on the values of some blood biochemical parameters. The a propriate dietary methionine supplementation was 12 g /head/day.

DOI

10.21608/jappmu.2021.89909.1018

Keywords

sheep, protected methionine, wool characteristics, wool ultrastructure, blood biochemicals

Authors

First Name

Alaa

Last Name

youssef

MiddleName

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Affiliation

Wool Production and Technology Department, Animal and Poultry Production Division, Desert Research Center, Egypt.

Email

alaa_hamada79@yahoo.com

City

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Orcid

-

First Name

W.

Last Name

Ramadan

MiddleName

A.

Affiliation

Wool Production and Technology Department, Animal and Poultry Production Division, Desert Research Center, Egypt.

Email

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City

-

Orcid

-

First Name

W.

Last Name

Khalil

MiddleName

A.

Affiliation

Animal Production Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt.

Email

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City

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Orcid

-

First Name

M.

Last Name

El-Harairy

MiddleName

A.

Affiliation

Animal Production Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt.

Email

mharairy53@yahoo.com

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-

Orcid

-

Volume

12

Article Issue

8

Related Issue

27933

Issue Date

2021-08-01

Receive Date

2021-10-02

Publish Date

2021-08-01

Page Start

255

Page End

263

Print ISSN

2090-3642

Online ISSN

2090-3723

Link

https://jappmu.journals.ekb.eg/article_197379.html

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https://jappmu.journals.ekb.eg/service?article_code=197379

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4

Type

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 adding dietary different levels of protected methionine on wool characteristics, ultrastructure, and blood components of Barki sheep

Details

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Article

Created At

22 Jan 2023