Modulatory Effect of Monochromatic Blue Light on Heat Stress Response in Commercial Broilers

Abdo, Safaa E.; El‐Kassas, Seham; El‐Nahas, Abeer F.; Mahmoud, Shawky

doi:10.1155/2017/1351945

Cited by 33 publications

(23 citation statements)

References 62 publications

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“…Heat-stressed boldo-treated AA chicks exhibited a higher growth rate than even heat-stressed AV birds treated or not with boldo extract. Our results are consistent with those reported by Hascik et al [6] and Abdo et al [9].…”

Section: Discussionsupporting

confidence: 94%

“…The similar response of the antioxidant defense system of both strains to heat stress may be attributed to the large differences in gene expression of these enzymes. Abdo et al [9] reported that gene expressions of SOD and catalase in the liver of heat-stressed Ross and Cobb chickens were not significantly altered. Furthermore, the strong free radical scavenging and antioxidant activity of boldo leaves could be attributed to their high content of boldine and catechin [67].…”

Section: Discussionmentioning

confidence: 99%

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Impacts of Strain Variation on Response to Heat Stress and Boldo Extract Supplementation to Broiler Chickens

Ghanima

Bin-Jumah

Abdel-Moneim

et al. 2019

Animals

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Simple Summary: One of the common approaches to alleviating heat-stress in poultry is nutritional manipulation using herbal extracts or their derivatives to maintain the health, welfare, and performance of birds. The present study investigated the protective effect of boldo leaf extract against the harmful effects of cyclic heat stress in two broiler strains (Arbor Acres; AA and Avian-48; AV). Administration of boldo in drinking water was able to restore growth and health traits to nearly normal values. Generally, AA chicks were better able to withstand heat stress and were also more likely to utilize boldo extract than AV chicks. The use of boldo leaf extract in poultry production can assist in mitigating the effect of heat stress, improving the antioxidant defense system, and increasing productivity and profitability.Abstract: There is increasing interest in the use of natural antioxidant supplements in poultry diets as protection against the adverse effects of heat stress. The potential protective effect of boldo (Peumus boldus molina) leaf extract, which have antioxidant activity, were investigated against the harmful effects of heat stress in two broiler strains. Arbor Acres (AA) and Avian-48 (AV) chicks were divided into thermoneutral (TN) and heat stress (HS) groups and treated with 1 g boldo leaf extract/4 L drinking water during the heat stress period. HS reduced growth performance in both strains. The phagocytic index, phagocytic activity, and eosinophil and lymphocytes counts were significantly elevated in TN and HS AV birds but not altered in AA birds. Boldo extract treatment partially eliminated the previous negative impacts of heat stress. AA chicks were better able to withstand HS than AV chicks. Serum concentrations of total lipids and cholesterol were reduced in HS birds of both strains. Malondialdehyde, superoxide dismutase, and glutathione peroxidase levels were elevated but restored with the administration of boldo leaf extract in HS birds of both strains. Economic parameters were negatively affected by HS but restored to values close to those of the control group in boldo-treated HS birds. In conclusion, the administration of boldo leaf extract in drinking water was effective in neutralizing the harmful effects of heat stress on growth performance, blood indices, and economic parameters and improved the antioxidant defense system in heat-stressed birds.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Impacts of Strain Variation on Response to Heat Stress and Boldo Extract Supplementation to Broiler Chickens

Ghanima

Bin-Jumah

Abdel-Moneim

et al. 2019

Animals

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“…Such increase indicates the activation of the pathways that are associated with counteracting the effects of oxidative stress. HS has been reported to increase the hepatic activity of CAT and SOD enzymes in two broiler chicken genotypes (Ross 308 and Cobb 500) (http://en.aviagen.com/brands/ross/products/ross-308) [67]. Habashy et al (2018) reported the up-regulation of the mRNA level of SOD (but not CAT) gene under chronic HS (12 days) [68].…”

Section: Stress-related Gene Expression Signaturesmentioning

confidence: 99%

Splenic Gene Expression Signatures in Slow-Growing Chickens Stimulated in Ovo with Galactooligosaccharides and Challenged with Heat

Pietrzak

Dunisławska

Siwek

et al. 2020

Animals

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Galactooligosaccharides (GOS) that are delivered in ovo improve intestinal microbiota composition and mitigate the negative effects of heat stress in broiler chickens. Hubbard hybrids are slow-growing chickens with a high resistance to heat. In this paper, we determined the impact of GOS delivered in ovo on slow-growing chickens that are challenged with heat. The experiment was a 2 × 2 × 2 factorial design. On day 12 of incubation, GOS (3.5 mg/egg) was delivered into the egg (n = 300). Controls (C) were mock-injected with physiological saline (n = 300). After hatching, the GOS and C groups were split into thermal groups: thermoneutral (TN) and heat stress (HS). HS (30 °C) lasted for 14 days (days 36–50 post-hatching). The spleen (n = 8) was sampled after acute (8.5 h) and chronic (14 days) HS. The gene expression of immune-related (IL-2, IL-4, IL-6, IL-10, IL-12p40, and IL-17) and stress-related genes (HSP25, HSP90AA1, BAG3, CAT, and SOD) was detected with RT-qPCR. Chronic HS up-regulated the expression of the genes: IL-10, IL-12p40, SOD (p < 0.05), and CAT (p < 0.01). GOS delivered in ovo down-regulated IL-4 (acute p < 0.001; chronic p < 0.01), IL-12p40, CAT and SOD (chronic p < 0.05). The obtained results suggest that slow-growing hybrids are resistant to acute heat and tolerant to chronic heat, which can be supported with in ovo GOS administration.

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“…Trial 5 was reared in spring, when the Texas climate experiences an increase in heat and humidity. Blue light has been shown to reduce measures of oxidative stress in heat-stressed broilers ( Abdo et al., 2017 ). Because plasma CORT also increases under heat stress ( Nelson et al., 2018 ) and increased plasma CORT can induce oxidative stress ( Lin et al., 2004 ), it would be expected that birds in the WS treatment would have lower plasma CORT concentrations compared to the WO treatment, even in warmer temperatures.…”

Section: Discussionmentioning

confidence: 99%

Light emitting diode (LED) color and broiler growth: effect of supplementing blue/green LED to white LED light on broiler growth, stress, and welfare

Nelson

Bray

Delabbio³

et al. 2020

Poultry Science

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Light emitting diode ( LED ) lighting provides an affordable lighting option for use in commercial poultry production. However, more information is needed to understand the effects of LED color on broiler welfare and growth. Five consecutive flocks (1 in summer, 1 in fall, 2 in winter, and 1 in spring) of straight run Ross 708 × Ross 708 broilers were reared in commercial type barns for 45 D. For white only ( WO ) treatment, birds were reared under white LED only (Agrishift MLB). For white supplemented ( WS ) treatment, birds were reared under white LED (Agrishift MLB) in the center aisle, with supplemental blue/green LED lighting (Agrishift MLBg) above the feed and water lines on either side of the barn. Each barn housed 26,200 chicks, and there were 2 barns in each treatment (n = 52,400/treatment). Treatments were rotated among barns between each flock. On day 45, blood samples were collected from 20 birds/barn (n = 40/treatment) to assess the plasma corticosterone (CORT) level and heterophil/lymphocyte ratio. On day 45, 100 birds/barn (n = 200/treatment) were weighed individually and assigned scores for hock burn and foot pad dermatitis. All measures were affected by trial ( P < 0.001). Plasma CORT and body weight were affected by the treatment × trial interaction ( P ≤ 0.001). Overall, birds in the WS treatment had higher day 45 live body weight ( P < 0.001) and lower hock burn scores ( P = 0.032) than birds in the WO treatment. Birds in the WS treatment had higher day 45 body weight overall ( P < 0.001) and in trials 1, 3, and 5, although the overall body weight was lower in trials 1, 3, and 5 than in trials 2 and 4. Supplemental blue/green LED improved hock burn scores and increased overall day 45 body weight. However, trial differences suggest that more data are needed to determine whether supplementing blue/green LED to white LED improves body weight gain in mixed sex broiler chickens.

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Modulatory Effect of Monochromatic Blue Light on Heat Stress Response in Commercial Broilers

Cited by 33 publications

References 62 publications

Impacts of Strain Variation on Response to Heat Stress and Boldo Extract Supplementation to Broiler Chickens

Impacts of Strain Variation on Response to Heat Stress and Boldo Extract Supplementation to Broiler Chickens

Splenic Gene Expression Signatures in Slow-Growing Chickens Stimulated in Ovo with Galactooligosaccharides and Challenged with Heat

Light emitting diode (LED) color and broiler growth: effect of supplementing blue/green LED to white LED light on broiler growth, stress, and welfare

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