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The effect of dietary Glutamine supplementation on performance and blood parameter, carcass characteristics, quality and characteristics meat of broiler chickens under continuous heat stress condition

Published: February 28, 2019
Summary
Introduction Heat stress is one of the major problems of poultry in heat areas of the world including Iran, especially in summer, leading to reduced performance, the production, feed intake, growth rates and effective use of the feed (Sahin ., 2009). In general, birds have a thermal comfort zone, which ranges between 18 to 22 ° C and no problem for the physiological regulation of body...
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Authors:
Mustafa Ayazi
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Juarez Donzele
Universidade Federal de Viçosa - UFV
Universidade Federal de Viçosa - UFV
7 de marzo de 2019

Good work, with seemingly coherent results. There is a single issue where I would like to make a consideration, regarding the fact that the performance of the birds in the phase from 0 to 21 days, contrary to what happened in the 22 to 42 days, was not influenced by the levels of glutamine. I believe that this variation of results would be related to the fact that the temperature of 32 º represents a lower intensity of stress when applied in the phase of 0 to 21 days, compared to the phase of 22 to 42 days.

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Mustafa Ayazi
30 de junio de 2019
Juarez Donzele Hello doctor The temperature conditions we tested were 32 ° C from the beginning to the end of the design. This may have led to subtle changes, due to the adaptation of broiler chicks to the climate. That is, in the 0 to 21 days the food and water habitual habits are in the range of 21-42 and the stability of the body with the environment. A lot of research has to be done because the results are the same and very small.
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Juarez Donzele
Universidade Federal de Viçosa - UFV
Universidade Federal de Viçosa - UFV
1 de julio de 2019

Mustafa Ayazi, while understanding his point of view, continues with the view that the difference in bird performance between phases would be related to the fact that the temperature of 32 C represents a lower stress intensity for birds from 0 to 21 days, compared to 22 to 42 days of age. However, I think it is important to emphasize that in biology there is no absolute truth.

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Youssef Attia
9 de marzo de 2019

Based on the author's conclusion, it was concluded that although dietary Glutamine consumption can improve the performance of broiler chickens during the grower and whole period under heat stress, but it doesn’t affect the performance during starter period or blood parameter at week 6 of age. Thus, the lack of significant effect during the starter period may be due to high temperature requirements for broilers (34-32) compared to the grower period (~28ºC) after 3 weeks of age. Thus, the critical or broken point for heat stress in broilers in greater than 29ºC after 3 weeks of age.

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Mustafa Ayazi
30 de junio de 2019

Youssef Attia Hello doctor
The conditions of the laboratory for the simulation of tropical regions in the country, such as the southern regions of Iran, are Bushehria, Kerman. The temperature rises to 42 degrees in the summer. The aim of the study was to investigate the changes in glucose supplements and glucose levels in broiler chicks in these areas. It is true that the effects of blood factors have not been meaningful or somewhat meaningful for some, but the results indicate the effect on the function due to complementary effects in improving the status of antioxidants and the immune system's factors.
Most importantly, it may have been due to the proteins of the intestines from radionuclide destruction.
When we look at performance numbers, the results indicate that the Factor Factor or FC, although not meaningful, was effective in controlling the control without glutamine, indicating that the bird's physical condition and their consistent increase at the end of the course, and this factor has led to weight gain in the growth period.

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Juarez Donzele
Universidade Federal de Viçosa - UFV
Universidade Federal de Viçosa - UFV
9 de marzo de 2019

I understand that the report of Prof. Youssef is consistent with my considerations.

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Mustafa Ayazi
1 de julio de 2019
excuse me mastic for type glut amine =glucose
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Rider Anderson Perez Maldonado
dsm-firmenich
17 de julio de 2019
Very interesting publication. Appreciate if someone would be able to forward the publication to rider-perez29@hotmail.com regards RP
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Dr. Fiodor S. Marchenkov
Kronos -Agro private company
19 de julio de 2019

Dear Mustafa, thanks a lot for your article. The antistress action of glutamine is caused by central position of these amino acids in transferring of amino groups. So, in this way glutamine is highly increasing their spectra of biochemical reactions, responsible for antistress action. You can support glutamine by betaine and carnitine. Probably these substances can give a synergic effect. Best wishes to you.

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Syed Farjad Zaidi
24 de julio de 2019
Glutamine to be fed is available in synthetic for or have to use feed ingredients which contain Glutamine.
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DR ASHEIKH
University of Maiduguri
1 de octubre de 2019
The effect of dietary Glutamine supplementation on performance, blood parameters, carcass and meat quality characteristics of broiler chickens under continuous heat stress condition I suggest the title to be as present above to flow.....
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