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197551

EFFECT OF THREONINE SUPPLEMENTATION ON JAPANESE QUAIL FED VARIOUS LEVELS OF PROTEIN AND SULFUR AMINO ACIDS. 1. GROWING PERIOD

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Last updated: 28 Dec 2024

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Abstract

This study was conducted using 420 unsexed day-old Japanese quail
chicks which, equally divided into 7 groups of 3 replicates each, to
explore the extent to which dietary crude protein (CP) level can be
reduced in corn-soybean meal (C-SBM) starter-grower diets through
sulfur amino acids (SAA) and Threonine (Thr) supplementation while
maintaining adequate performance. One positive control diet (A) was
formulated to cover or exceed NRC (1994) recommendations of CP,
SAA and Thr. Two negative control diets (B and C) were formulated to
contain lower CP (22 and 20% CP, respectively) than NRC (1994)
recommended level but SAA and Thr were held at a constant ratio to CP
for obtaining the same ratio in the two diets. Two amino acidsupplemented diets (B1 and C1) were formulated to be similar in
composition to diets B and C, respectively but still supplying the same
SAA and Thr as in diet (A). Two other amino acid-supplemented diets
(B2 and C2) were formulated in a similar manner as in diets B1 and C1,
respectively but supplemented with additional Thr at levels of 0.2 and
0.4%, respectively to ensure that it contained higher Thr levels than the
NRC (1994) recommended level. Live growth performance, carcass
characteristics, some blood serum parameters and economical efficiency
were determined. From the nutritional and economical point of view, it
could be concluded that the performance of Japanese quail fed lowprotein diet (22% CP) supplemented with SAA as NRC (1994)
recommendations plus additional Thr at 0.2 over NRC (1994)
recommendations was similar to that achieved with the high-protein diet
(24% CP) and gave economical efficiency value near to that achieved
with the high-protein diet (24% CP).

DOI

10.21608/fjard.2007.197551

Keywords

protein, methionine, lysine, threonine, performance, carcass, Blood, Economic, quails

Authors

First Name

Mohammed, A. A.

Last Name

Abdel-Mageed

MiddleName

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Affiliation

Animal Prod. Res. Inst., Agric. Res. Center, Ministry of Agric, Doki, Giza, Egypt.

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Orcid

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First Name

Sayed, A. M.

Last Name

Shabaan

MiddleName

-

Affiliation

Animal Prod. Res. Inst., Agric. Res. Center, Ministry of Agric, Doki, Giza, Egypt.

Email

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City

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Orcid

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First Name

Mohammed, S.

Last Name

Bahnas

MiddleName

-

Affiliation

Fac. of Agric., Poultry Production Dept., Fayoum Univ., Fayoum, Egypt.

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City

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Orcid

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Volume

21

Article Issue

2

Related Issue

27949

Issue Date

2007-07-01

Receive Date

2021-10-02

Publish Date

2007-07-01

Page Start

31

Page End

44

Print ISSN

1110-7790

Online ISSN

2805-2528

Article File

FJARD_Volume 21_Issue 2_Pages 31-44.pdf

PDF . 472.1kB

Link

https://fjard.journals.ekb.eg/article_197551.html

Detail API

https://fjard.journals.ekb.eg/service?article_code=197551

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Research articles.

Type Code

1,920

Publication Type

Journal

Publication Title

Fayoum Journal of Agricultural Research and Development

Publication Link

https://fjard.journals.ekb.eg/

MainTitle

EFFECT OF THREONINE SUPPLEMENTATION ON JAPANESE QUAIL FED VARIOUS LEVELS OF PROTEIN AND SULFUR AMINO ACIDS. 1. GROWING PERIOD

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Article

Created At

23 Jan 2023