Kirkuk University Journal for Agricultural Sciences (KUJAS)

The effect of adding levels of the, amino acid threonine (Thr) in the low protein diets upon the carcass traits ,Some physiologi cal and bio chemical parameters of the broiler blood

https://doi.org/10.58928/ku22.13405
Volume 13, Issue 4
Autumn 2022
Page 32-42
Kirkuk University Journal for Agricultural Sciences (KUJAS)

Document Type : Research Paper

Authors

Saddam Najem Abdullah Al-Sakr 1
Mohammed Ibrahim Ahmed AL-Neemi 2

1 Directorate of Agriculture/Kirkuk

2 University of Kirkuk-College of Agriculture

Abstract
A total 400 broiler chicks (Ross-308)one day old were randomly for 8 nutritional treatements: percents
of protein (standar and decrease the standar protein level by2%) with for levels of threonine (with out adding
Thr, adding Thr to Complete the requirement, complete the Thr requirement 110% and complete the Thr
requirement 120%. Each treatement included 5 replicates (pens) With bird per each replicate The period of
the exiperment was 42 days. The results of the statistical analyses was refered to the variation amonge the
treatements for the carcass traits , some physical and biochemi cal parameter were significant
(P≤0.05)
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