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Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

Birds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40°C, 4-h... Full description

Journal Title: The Journal of Poultry Science 2012, Vol.49(3), pp.212-218
Main Author: Chowdhury, Vishwajit S.
Other Authors: Tomonaga, Shozo , Nishimura, Shotaro , Tabata, Shoji , Furuse, Mitsuhiro
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1346-7395 ; DOI: 10.2141/jpsa.011071
Link: https://jlc.jst.go.jp/DN/JALC/10008377233?from=PrimoCentral
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recordid: jstageDN/JALC/10008377233
title: Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature
format: Article
creator:
  • Chowdhury, Vishwajit S.
  • Tomonaga, Shozo
  • Nishimura, Shotaro
  • Tabata, Shoji
  • Furuse, Mitsuhiro
subjects:
  • Chick
  • Food Intake
  • High Ambient Temperature
  • Plasma Metabolites
ispartof: The Journal of Poultry Science, 2012, Vol.49(3), pp.212-218
description: Birds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40°C, 4-h) in 3-, 5-, 7-, 14- and 21-d old chicks. There were no significant differences in food intake between heat exposed and control chicks up to 7-d old, while clear suppressions of food intake were observed in 14- and 21-d old heat exposed chicks. Body weights were not affected in all age groups; however, rectal temperature was significantly increased in almost all ages. We examined blood metabolites of 7-, 14- and 21-d old chicks and found that plasma glucose concentration gradually increased in 14- to 21-d old heat exposed chicks. Conversely, triacylglycerol age-dependently decreased during exposure to HT. No significant changes were detected in plasma total protein, uric acid and calcium investigated in 7-, 14- and 21-d old heat exposed chicks compared to control groups. However, plasma glutamic-oxalacetic transaminase showed a significant interaction between HT and age, implying that liver and/or heart was damaged by HT with aging. These results indicate that HT (40°C; 4-h) suppresses food intake in young chicks of 14- or 21-d old age which reflects in some of their plasma metabolic concentrations.
language: eng
source:
identifier: ISSN: 1346-7395 ; DOI: 10.2141/jpsa.011071
fulltext: fulltext
issn:
  • 1346-7395
  • 13467395
url: Link


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titlePhysiological and Behavioral Responses of Young Chicks to High Ambient Temperature
creatorChowdhury, Vishwajit S. ; Tomonaga, Shozo ; Nishimura, Shotaro ; Tabata, Shoji ; Furuse, Mitsuhiro
ispartofThe Journal of Poultry Science, 2012, Vol.49(3), pp.212-218
identifierISSN: 1346-7395 ; DOI: 10.2141/jpsa.011071
subjectChick ; Food Intake ; High Ambient Temperature ; Plasma Metabolites
descriptionBirds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40°C, 4-h) in 3-, 5-, 7-, 14- and 21-d old chicks. There were no significant differences in food intake between heat exposed and control chicks up to 7-d old, while clear suppressions of food intake were observed in 14- and 21-d old heat exposed chicks. Body weights were not affected in all age groups; however, rectal temperature was significantly increased in almost all ages. We examined blood metabolites of 7-, 14- and 21-d old chicks and found that plasma glucose concentration gradually increased in 14- to 21-d old heat exposed chicks. Conversely, triacylglycerol age-dependently decreased during exposure to HT. No significant changes were detected in plasma total protein, uric acid and calcium investigated in 7-, 14- and 21-d old heat exposed chicks compared to control groups. However, plasma glutamic-oxalacetic transaminase showed a significant interaction between HT and age, implying that liver and/or heart was damaged by HT with aging. These results indicate that HT (40°C; 4-h) suppresses food intake in young chicks of 14- or 21-d old age which reflects in some of their plasma metabolic concentrations.
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descriptionBirds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40°C, 4-h) in 3-, 5-, 7-, 14- and 21-d old chicks. There were no significant differences in food intake between heat exposed and control chicks up to 7-d old, while clear suppressions of food intake were observed in 14- and 21-d old heat exposed chicks. Body weights were not affected in all age groups; however, rectal temperature was significantly increased in almost all ages. We examined blood metabolites of 7-, 14- and 21-d old chicks and found that plasma glucose concentration gradually increased in 14- to 21-d old heat exposed chicks. Conversely, triacylglycerol age-dependently decreased during exposure to HT. No significant changes were detected in plasma total protein, uric acid and calcium investigated in 7-, 14- and 21-d old heat exposed chicks compared to control groups. However, plasma glutamic-oxalacetic transaminase showed a significant interaction between HT and age, implying that liver and/or heart was damaged by HT with aging. These results indicate that HT (40°C; 4-h) suppresses food intake in young chicks of 14- or 21-d old age which reflects in some of their plasma metabolic concentrations.
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abstractBirds reduce their food intake by the exposure to high ambient temperature (HT) which ultimately affects their productivity. However, physiological and behavioral responses of young chicks of different ages to HT have not yet been investigated. In this study, we examined the effects of HT (40°C, 4-h) in 3-, 5-, 7-, 14- and 21-d old chicks. There were no significant differences in food intake between heat exposed and control chicks up to 7-d old, while clear suppressions of food intake were observed in 14- and 21-d old heat exposed chicks. Body weights were not affected in all age groups; however, rectal temperature was significantly increased in almost all ages. We examined blood metabolites of 7-, 14- and 21-d old chicks and found that plasma glucose concentration gradually increased in 14- to 21-d old heat exposed chicks. Conversely, triacylglycerol age-dependently decreased during exposure to HT. No significant changes were detected in plasma total protein, uric acid and calcium investigated in 7-, 14- and 21-d old heat exposed chicks compared to control groups. However, plasma glutamic-oxalacetic transaminase showed a significant interaction between HT and age, implying that liver and/or heart was damaged by HT with aging. These results indicate that HT (40°C; 4-h) suppresses food intake in young chicks of 14- or 21-d old age which reflects in some of their plasma metabolic concentrations.
pubJapan Poultry Science Association
doi10.2141/jpsa.011071
pages212-218
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