scholarly journals Effect of Acute Heat Stress on Plasma Amino Acids Concentration of Broiler Chickens.

2000 ◽  
Vol 37 (2) ◽  
pp. 86-94 ◽  
Author(s):  
Hayford Y. TABIRI ◽  
Kan SATO ◽  
Kazuaki TAKAHASHI ◽  
Masaaki TOYOMIZU ◽  
Yukio AKIBA
Keyword(s):  
Amino Acids ◽  
Heat Stress ◽  
Broiler Chickens ◽  
Plasma Amino Acids ◽  
Acute Heat Stress

Histopathological and biochemical evaluations of the kidney inbroiler chickens under acute heat stress conditions.

2017 ◽  
Author(s):  
S.C. Huang ◽  
Y.F. Fu ◽  
Y.F. Lan ◽  
M.U. Rehman ◽  
Z.X. Tong
Keyword(s):  
Heat Stress ◽  
Broiler Chickens ◽  
Serum Markers ◽  
Acid Base Balance ◽  
Tubular Necrosis ◽  
Acute Heat Stress ◽  
Tubular Lumen ◽  
Base Balance ◽  
Histopathological Images ◽  
Renal Tubular

The purpose of the present study was to investigate the correlation between acute heat stress and relevant histopathology and biochemical parameters of kidney function. A total of 80 healthy Arbor Acer (AA) broiler chickens were randomly divided into two groups: CT (Control Temperature; 22±1°C) group and HT (High Temperature; 38±1°C) group. Histopathological images revealed alteration in kidney (renal tubular lumen dilation with tubular necrosis, especially after 10h of heat stress) of broiler chickens in HT group leading to disturbance of acid base balance. Blood urea nitrogen (BUN) and creatinine (CREA) as serum markers of renal dysfunction were elevated significantly (p less than 0.05) after 5h, and especially, after 10h of heat stress (p less than 0.01) as compared with CT group. These results indicated that the evaluation of morphological and functional parameters in kidney is required, in order to monitor broiler chickens exposed to heat stress.

scholarly journals Reducing Stress Susceptibility of Broiler Chickens by Supplementing a Yeast Fermentation Product in the Feed or Drinking Water

Animals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 173 ◽  
Author(s):  
Jill Nelson ◽  
Don McIntyre ◽  
Hilary Pavlidis ◽  
Gregory Archer
Keyword(s):  
Drinking Water ◽  
Heat Stress ◽  
Broiler Chickens ◽  
Plasma Corticosterone ◽  
Water Withdrawal ◽  
Yeast Fermentation ◽  
Feed Water ◽  
Acute Heat Stress ◽  
Stress Susceptibility ◽  
Reducing Stress

Reducing stress is an important goal in animal production. Previous research has demonstrated the ability of Original XPCTM to reduce the stress response of broilers during heat stress. Three trials were conducted to evaluate the effects of adding Original XPCTM to the feed or AviCareTM to the water on stress susceptibility of broiler chickens. Treatments included: control nonstressed (CNS), control stressed (CS), stressed with Original XPCTM (1.25 kg/metric ton feed, 0–42 days; XPC), and stressed with AviCareTM (160 mL/100 L drinking water, 0–42 days; AVI). All stressed treatments received the following stressors: live coccidiosis vaccination (day 1), reared on reused litter (days 0–42), and heat stress with feed/water withdrawal (12 h on day 18). Plasma corticosterone and heterophil/lymphocyte (H/L) ratio were determined from 60 birds/T on day 19, and 24 birds/T on day 41. Physical asymmetry was determined using bilateral bone measurements from 60 birds/T on day 41. Birds provided XPC or AVI had lower corticosterone and H/L ratios than CS (p < 0.05) on day 19 and lower corticosterone, H/L ratios, and asymmetry scores than both CNS and CS on day 41 (p < 0.05) in all three trials. Supplementing XPC or AVI improved broiler welfare measured by reduced stress indicators after acute heat stress or normal rearing stress in all trials.

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