Crating and heat stress influence blood parameters and heat shock protein 70 expression in broiler chickens showing short or long tonic immobility reactions

Zulkifli, I.; Alaqil, Abdulaziz A.; Omar, Ashraf Ali; Sazili, Awis Qurni; Rajion, Mohamed Ali

doi:10.3382/ps.2008-00287

Cited by 111 publications

(62 citation statements)

References 35 publications

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“…In the present study, the thermal treatment during late embryonic development had a numerical effect on the serum level of Cort at hatch, while the level of Cort was significantly higher in the TCH group as compared to the control. Our results are in agreement with Zulkifli et al (2009) and Vishwajit et al (2012) who reported that heat challenge may elevate Cort in broiler chickens. These results suggest that the application of TM at 38.5°C in late embryonic development succeeded in reducing the negative effect of heat stress in those chicks during early exposure to stressful environmental conditions.…”

Section: Discussionsupporting

confidence: 83%

Effects of thermal manipulation during late incubation period on post-hatch thermotolerance in ostrich

Elsayed¹

2016

CZECH J ANIM SCI

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ABSTRACT:The effects of thermal manipulation (TM) during late ostrich embryonic development on hatchability, body weight, biochemical and hormonal changes, and the ability of hatching chicks to cope with thermal challenge in days 6-8 of age were examined. At 35 days of incubation, two hundred fertile eggs were weighed and divided into two equal groups with five replicates. The first group was exposed to 36.5°C and 25% relative humidity (RH) (control), while the second group was exposed to 38.5°C and 45% RH for 3 h daily in days 35-37 of incubation (thermal manipulation). At days 6-8 of age, the hatched chicks from each treatment were randomly divided into two groups: control group (exposed to 32 ± 1°C), and thermal challenge group (exposed to 40 ± 1°C for 3 h daily). Hatchability rate was significantly lower with high incubation temperature as compared to the normal incubation temperatures. Embryonic TM and thermal challenge in days 6-8 of age reduced significantly total protein, albumin, and triiodothyronin concentrations and elevated uric acid, creatinine, triglycerides, and glucose concentrations as compared with the control. The level of corticosterone was significantly higher in the thermal challenge group as compared to the control. In conclusion, exposing the ostrich embryos to TM (38.5°C) during late embryonic development induced physiological changes that may represent epigenetic adaptation to TM. The same mechanisms are employed for increasing the ability to improve thermotolerance post-hatch.

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Section: Discussionsupporting

confidence: 83%

Effects of thermal manipulation during late incubation period on post-hatch thermotolerance in ostrich

Elsayed¹

2016

CZECH J ANIM SCI

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“…There is a question of whether the hsp 70 reaction to transportation is attributed to thermal stress per se or in combination with other noxious stimuli such as noise, acceleration and feed and water deprivation. Zulkifli et al (2009) reported that chickens subjected to crating and left stationary in a room with an ambient temperature of 248C showed an increase in hsp 70 expressions. Thus, the hsp 70 response noted in this study could be attributed to the additive effects of various stressors associated with road transportation.…”

Section: Discussionmentioning

confidence: 99%

A note on heat shock protein 70 expression in goats subjected to road transportation under hot, humid tropical conditions

Zulkifli

Norbaiyah

Yoke-Kqueen

et al. 2010

Animal

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The influence of two different stocking densities (0.20 m 2 /animal and 0.40 m 2 /animal) in transit under the hot, humid tropical conditions on heat shock protein (hsp) 70 induction was investigated in 60 Boer does. The animals were road transported for 3 h and the control group was kept under normal conditions in the farm. Irrespective of stocking density, transportation significantly increased hsp 70 densities ( P , 0.05) in the kidneys. The hsp 70 response in the kidneys was more profound compared with those of heart tissues. Higher stocking density was more stressful to the goats based on hsp 70 expression. These results suggest that, irrespective of stocking density, transportation under hot, humid tropical conditions evoked hsp 70 reactions.

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“…There are some reports that heat challenge may elevate corticosterone in broiler chickens (Edens and Siegel, 1975;Zulkifli et al, 1999Zulkifli et al, , 2003Zulkifli et al, , 2009Mahmoud et al, 2004). However, Lin et al (2006) and Han et al (2010) reported that HT did not affect plasma corticosterone concentrations.…”

Section: Discussionmentioning

confidence: 90%

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

et al. 2012

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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℃, 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℃; 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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Crating and heat stress influence blood parameters and heat shock protein 70 expression in broiler chickens showing short or long tonic immobility reactions

Cited by 111 publications

References 35 publications

Effects of thermal manipulation during late incubation period on post-hatch thermotolerance in ostrich

Effects of thermal manipulation during late incubation period on post-hatch thermotolerance in ostrich

A note on heat shock protein 70 expression in goats subjected to road transportation under hot, humid tropical conditions

Physiological and Behavioral Responses of Young Chicks to High Ambient Temperature

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