scholarly journals Effect of Carbonated Water on Growth Performance of Cockerels Subjected to Constant and Cyclic Heat Stress Temperatures

1985 ◽  
Vol 64 (7) ◽  
pp. 1285-1292 ◽  
Author(s):  
W.G. BOTTJE ◽  
P.C. HARRISON
Keyword(s):  
Heat Stress ◽  
Growth Performance ◽  
Cyclic Heat ◽  
Carbonated Water

252 Effect of Cyclic Heat Stress and Supplemented Inorganic and Organic Zinc Source Levels on Grow-Finish Pig Growth Performance and Estimated Body Composition.

2018 ◽  
Vol 96 (suppl_2) ◽  
pp. 134-135 ◽  
Author(s):  
K M Mills ◽  
J A Feldpausch ◽  
A W Duttlinger ◽  
S K Elefson ◽  
S M Zuelly ◽  
...  
Keyword(s):  
Body Composition ◽  
Heat Stress ◽  
Growth Performance ◽  
Zinc Source ◽  
Organic Zinc ◽  
Cyclic Heat ◽  
Inorganic And Organic

scholarly journals Effects of Herbal Adaptogen Feed-Additive on Growth Performance, Carcass Parameters, and Muscle Amino Acid Profile in Heat-Stressed Modern Broilers

2021 ◽  
Vol 12 ◽  
Author(s):  
Elizabeth S. Greene ◽  
Clay Maynard ◽  
Casey M. Owens ◽  
Jean-François Meullenet ◽  
Sami Dridi
Keyword(s):  
Body Weight ◽  
Heat Stress ◽  
Amino Acid ◽  
Growth Performance ◽  
Feed Intake ◽  
Control Diet ◽  
Amino Acid Profile ◽  
Poultry Production ◽  
Carcass Parameters ◽  
Cyclic Heat

Heat stress has strong adverse effects on poultry production and, thereby, threats its sustainability, which energized scientists to search for innovative and effective solutions. Here, we undertook this study to evaluate the effects of in-feed herbal adaptogen (stress response modifier) supplementation on growth performances, meat quality, and breast amino acid profile in chronic cyclic heat-stressed broilers. Day-old male Cobb 500 chicks (n = 720) were randomly assigned, in environmental chambers (n = 12, 24 pens), to three diet-treatments: a three-phase corn-soybean based diet fed as such (Control, C), or supplemented with the herbal adaptogen at 500 g/1000 kg control diet (NR-PHY-500) or at 1 kg/1000 kg control diet (NR-PHY-1000). From d29 to d42, birds from 9 chambers were exposed to cyclic heat stress (HS, 35°C from 9:30 am-5:30 pm), however, the rest of the chamber were maintained at thermoneutral conditions (24°C, TN), which creates 4 experimental groups: C-TN, C-HS, NR-PHY-500HS, and NR-PHY-1000HS (6 pens/group, 168 birds/group). HS altered growth performance via depression of feed intake and body weight. Adaptogen supplementation stimulated feed intake and averaged 65.95 and 83.25 g better body weight and 5 and 10 points better FCR at low and high dose, respectively, compared to heat-stressed birds. This increase in body weight was mirrored in enhanced weights of body parts (breast, tender, wings, and legs). Adaptogen supplementation modulated also breast amino acid profile, pH, color, and quality. Together, these data suggested that adaptogen supplementation could be a promising solution to alleviate heat stress, however further in-depth investigation for its mode of action and its underlying mechanisms are warranted.

scholarly journals Evaluation of Three Formulations of Essential Oils in Broiler Chickens under Cyclic Heat Stress

Animals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1084
Author(s):  
Jared Ruff ◽  
Guillermo Tellez ◽  
Aaron J. Forga ◽  
Roberto Señas-Cuesta ◽  
Christine N. Vuong ◽  
...  
Keyword(s):  
Heat Stress ◽  
Essential Oils ◽  
Broiler Chickens ◽  
Bone Mineralization ◽  
Body Core Temperature ◽  
Control Group ◽  
Group 4 ◽  
Body Core ◽  
Cyclic Heat ◽  
Group 2

The objective of the present research was to assess the dietary supplementation of three formulations of essential oils (EO) in chickens under heat stress (HS). Day-of-hatch Cobb 500 chicks (n = 500) were randomly distributed into four groups: 1. HS control + control diets; 2. HS + control diets supplemented with 37 ppm EO of Lippia origanoides (LO); 3. HS + control diets supplemented with 45 ppm LO + 45 ppm EO of Rosmarinus officinalis (RO) + 300 ppm red beetroot; 4. HS + 45 ppm LO + 45 ppm RO + 300 ppm natural betaine. Chickens that received the EO showed significant (p < 0.05) improvement on BW, BWG, FI, and FCR compared to control HS chickens. Average body core temperature in group 3 and group 4 was significantly (p < 0.05) reduced compared with the HS control group and group 2. Experimental groups showed a significant reduction in FITC-d at 42 days, a significant increase in SOD at both days but a significant reduction of IFN-γ and IgA compared with HS control (p < 0.05). Bone mineralization was significantly improved by EO treatments (p < 0.05). Together these data suggest that supplemental dietary EO may reduce the harmful effects of HS.

Growth performance of Nile tilapia, Oreochromis niloticus, fed diets containing levels of pyridoxine and haematological response under heat stress

2011 ◽  
Vol 43 (8) ◽  
pp. 1081-1088 ◽  
Author(s):  
Caroline Pelegrina Teixeira ◽  
Margarida Maria Barros ◽  
Luiz Edivaldo Pezzato ◽  
Ademir Calvo Fernandes Jr ◽  
João Fernando Albers Koch ◽  
...  
Keyword(s):  
Heat Stress ◽  
Growth Performance ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Haematological Response ◽  
Nile Tilapia Oreochromis Niloticus
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