Beta
6774

EFFECTS OF DIETARY THREONINE LEVEL, METHIONINE SOURCES, SEX OF BROILER CHICKS AND THEIR INTERACTIONS ON CARCASS TISSUE DISTRIBUTION AND CHEMICAL COMPOSITION

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

-

Abstract

A total sum of 180 Hubbard broilers chicks (46.9 ± 2.5 g) at one-day-old were used, weighed and divided into six treatments of three replicates each to investigate effects of using two levels of amino acid threonine (T) being (0.0 or 1.0 g/ kg diet) and three different methionine sources: DL- methionine (DLM), acid liquid methionine (ALM) or methionine hydroxy-analogue-calcium salt (MHA) in 2 x 3 factorial design on carcass tissue weight distribution and chemical composition for both male and female broiler chicks, fed corn-soybean meal based diets. Results obtained declared that skin and subcutaneous fat percentages of carcass parts were not altered by neither different dietary treatments nor bird sex. Also, distribution of both muscles and bones was not altered by different dietary treatments as male and female chicks appeared similar, except for muscles percentages of breast and drumstick where, males recoded significantly higher values than female chickens. Additionally, all parameters of tibia bone measurements (tibia length, tibia width, tibia Seedor index (SI) and tibia Robusticity index (RI)) were not significantly affected by different dietary treatments, while male chickens had a significant higher figures (tibia length, width, (SI) and dry tibia weight percentage (DTW %)) than female chickens. Data of chemical composition of both tibia bone and breast meat were presented insignificant effect of either different dietary treatments, or bird sex. While most of studied parameters showed insignificant response due to interactions between threonine levels (T), methionine sources (M) and sex of birds (S). According to results obtained, it would be stated that interactions between dietary threonine (T) supplementation, methionine (M) sources and sex (S), for nearly all studied parameters, were insignificant.

Keywords

Bones- L-threonine- Methionine sources- Muscles sex- Skin

Authors

First Name

Mrwan

Last Name

Abdelaziz

MiddleName

Abdelaziz Mahmoud

Affiliation

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

Email

mrwanabdelaziz@agr.asu.edu.eg

City

Cairo

Orcid

0000-0002-0371-2594

First Name

Nematallah

Last Name

Ali

MiddleName

Gamal El-Din Mohamed

Affiliation

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

Email

nematallah1965@gmail.com

City

Cairo

Orcid

-

First Name

Ahmed

Last Name

El-Faham

MiddleName

Ibrahim Soliman

Affiliation

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

Email

ahmed.elfaham@agr.asu.edu.eg

City

Cairo

Orcid

-

Volume

37

Article Issue

1

Related Issue

927

Issue Date

2017-03-01

Receive Date

2017-01-11

Publish Date

2018-05-05

Page Start

155

Page End

167

Print ISSN

1110-5623

Online ISSN

2090-0570

Link

https://epsj.journals.ekb.eg/article_6774.html

Detail API

https://epsj.journals.ekb.eg/service?article_code=6774

Order

11

Type

Original Article

Type Code

493

Publication Type

Journal

Publication Title

Egyptian Poultry Science Journal

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023