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Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition

A study with a 4 × 2 factorial arrangement was conducted to investigate the effects of 4 dietary protein levels and 2 environmental conditions on acute phase proteins (APP), brain heat shock protein (HSP) 70 density, and growth performance of broiler chickens. Day-old broiler chicks (Cobb 500) were...

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Main Authors: Idrus, Zulkifli, A. F., Akmal, Farjam, Abdoreza Soleimani, Hossain, Mohammad Abul, Mohamed, Elmutaz Atta Awad
Format: Article
Language:English
Published: Oxford University Press 2018
Online Access:http://psasir.upm.edu.my/id/eprint/72501/1/Effects%20of%20low-protein%20diets%20.pdf
http://psasir.upm.edu.my/id/eprint/72501/
https://www.sciencedirect.com/science/article/pii/S0032579119309976?via%3Dihub
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spelling my.upm.eprints.725012020-06-19T02:28:57Z http://psasir.upm.edu.my/id/eprint/72501/ Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition Idrus, Zulkifli A. F., Akmal Farjam, Abdoreza Soleimani Hossain, Mohammad Abul Mohamed, Elmutaz Atta Awad A study with a 4 × 2 factorial arrangement was conducted to investigate the effects of 4 dietary protein levels and 2 environmental conditions on acute phase proteins (APP), brain heat shock protein (HSP) 70 density, and growth performance of broiler chickens. Day-old broiler chicks (Cobb 500) were fed isocaloric diets but with various levels of crude protein (CP), namely, (1) 21.0 and 19.0% CP in starter and finisher diets, respectively (control), (2) 19.5 and 17.5% CP in starter and finisher diets, respectively (Diet A), (3) 18.0 and 16.0% CP in starter and finisher diets, respectively (Diet B), and (4) 16.5 and 14.5% CP in starter and finisher diets, respectively (Diet C). Equal numbers of birds from each diet were subjected to either 23±1°C throughout or 33±1°C for 6 h per d from 22 to 35 d of age. From d 1 to 21, feed intake (FI) and weight gain (WG) decreased linearly (P = 0.021 and P = 0.009, respectively), as CP level was reduced. During the heat treatment period (d 22 to 35), there were significant (P = 0.04) diet × heat treatment interactions for FCR. Diet had no effect on FCR among the unheated birds, but the ratio increased linearly (P = 0.007) as dietary CP level decreased. Irrespective of ambient temperature, there was a significant linear decrease in FI (P = 0.032) and WG (P < 0.001) as dietary CP level decreased. Low-CP diets improved the survivability of heat-stressed broilers when compared to those fed control diets. Low-CP diets linearly decreased (P < 0.01) APP (ovotransferrin and alpha-acid glycoprotein) responses. Both APP and HSP 70 reactions were elevated following heat treatment. In conclusion, feeding broilers with low-CP diets adversely affect the growth performance of broilers under heat stress condition. However, low-CP diets were beneficial in improving the survivability. Because APP are involved in the restoration of homeostasis, the adverse effect of low-CP diet on the synthesis of these proteins could be of concern. Oxford University Press 2018-04 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72501/1/Effects%20of%20low-protein%20diets%20.pdf Idrus, Zulkifli and A. F., Akmal and Farjam, Abdoreza Soleimani and Hossain, Mohammad Abul and Mohamed, Elmutaz Atta Awad (2018) Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition. Poultry Science, 97 (4). 1306 - 1314. ISSN 0032-5791; ESSN: 1525-3171 https://www.sciencedirect.com/science/article/pii/S0032579119309976?via%3Dihub 10.3382/ps/pex436
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description A study with a 4 × 2 factorial arrangement was conducted to investigate the effects of 4 dietary protein levels and 2 environmental conditions on acute phase proteins (APP), brain heat shock protein (HSP) 70 density, and growth performance of broiler chickens. Day-old broiler chicks (Cobb 500) were fed isocaloric diets but with various levels of crude protein (CP), namely, (1) 21.0 and 19.0% CP in starter and finisher diets, respectively (control), (2) 19.5 and 17.5% CP in starter and finisher diets, respectively (Diet A), (3) 18.0 and 16.0% CP in starter and finisher diets, respectively (Diet B), and (4) 16.5 and 14.5% CP in starter and finisher diets, respectively (Diet C). Equal numbers of birds from each diet were subjected to either 23±1°C throughout or 33±1°C for 6 h per d from 22 to 35 d of age. From d 1 to 21, feed intake (FI) and weight gain (WG) decreased linearly (P = 0.021 and P = 0.009, respectively), as CP level was reduced. During the heat treatment period (d 22 to 35), there were significant (P = 0.04) diet × heat treatment interactions for FCR. Diet had no effect on FCR among the unheated birds, but the ratio increased linearly (P = 0.007) as dietary CP level decreased. Irrespective of ambient temperature, there was a significant linear decrease in FI (P = 0.032) and WG (P < 0.001) as dietary CP level decreased. Low-CP diets improved the survivability of heat-stressed broilers when compared to those fed control diets. Low-CP diets linearly decreased (P < 0.01) APP (ovotransferrin and alpha-acid glycoprotein) responses. Both APP and HSP 70 reactions were elevated following heat treatment. In conclusion, feeding broilers with low-CP diets adversely affect the growth performance of broilers under heat stress condition. However, low-CP diets were beneficial in improving the survivability. Because APP are involved in the restoration of homeostasis, the adverse effect of low-CP diet on the synthesis of these proteins could be of concern.
format Article
author Idrus, Zulkifli
A. F., Akmal
Farjam, Abdoreza Soleimani
Hossain, Mohammad Abul
Mohamed, Elmutaz Atta Awad
spellingShingle Idrus, Zulkifli
A. F., Akmal
Farjam, Abdoreza Soleimani
Hossain, Mohammad Abul
Mohamed, Elmutaz Atta Awad
Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
author_facet Idrus, Zulkifli
A. F., Akmal
Farjam, Abdoreza Soleimani
Hossain, Mohammad Abul
Mohamed, Elmutaz Atta Awad
author_sort Idrus, Zulkifli
title Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
title_short Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
title_full Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
title_fullStr Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
title_full_unstemmed Effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
title_sort effects of low-protein diets on acute phase proteins and heat shock protein 70 responses, and growth performance in broiler chickens under heat stress condition
publisher Oxford University Press
publishDate 2018
url http://psasir.upm.edu.my/id/eprint/72501/1/Effects%20of%20low-protein%20diets%20.pdf
http://psasir.upm.edu.my/id/eprint/72501/
https://www.sciencedirect.com/science/article/pii/S0032579119309976?via%3Dihub
_version_ 1671341093764988928
score 13.211869

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