Effect of chronic cyclic heat stress on the intestinal morphology, oxidative status and cecal bacterial communities in broilers

Liu, Guanhui; Zhu, Haibo; Ma, Tenghe; Yan, Zhaoyang; Zhang, Yongying; Geng, Yunyun; Zhu, Yu; Shi, Yongyu

doi:10.1016/j.jtherbio.2020.102619

Cited by 45 publications

(42 citation statements)

References 45 publications

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“…The negative effects of heat stress on broiler growth performance were suggested to be mediated by changes in the intestinal morphology and permeability rather than the alteration in feed intake [ 44 , 45 ]. Liu et al [ 46 ] reported that chronic cyclic heat stress-induced intestinal damage and altered cecal microflora profile via oxidative stress induction. Acute heat stress was also reported to cause serious damages in chickens’ small intestine and liver [ 47 ].…”

Section: Discussionmentioning

confidence: 99%

“…The negative impacts of heat stress on bird physiology and behavior are generally mediated by the induction of oxidative stress and redox imbalance [ 5 , 43 , 46 ]. The current results demonstrated that chronic heat stress negatively disturbed the redox balance with increasing MDA levels and decreasing GSH concentration, the activity of SOD and the total antioxidant capacity.…”

Section: Discussionmentioning

confidence: 99%

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Blue-Green Algae (Spirulina platensis) Alleviates the Negative Impact of Heat Stress on Broiler Production Performance and Redox Status

Moustafa

Alsanie

Gaber

et al. 2021

Animals

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The modern broiler industry faces huge challenges to keep high production quality and quantity, especially under environmental heat stress conditions. The negative effect of heat stress on broiler productivity is mediated by oxidative stress induction. The blue-green alga (Spirulina platensis) has many applications in poultry nutrition with the high levels of bioactive antioxidant compounds, which can alleviate the oxidative stress damage induced by high ambient temperature. The current study was designed to investigate the effects of dietary Spirulina inclusion at different levels on growth performance, redox status, carcass traits, meat quality, blood hematology, and metabolites profile of broilers subjected to cyclic heat stress. A total of 300 one-day-old Cobb-500 broiler chicks were recruited. Starting from day 21 to 42 of age, birds were randomly divided into five treatment groups with 6 replicates × 10 birds per group, where the first one was provided with the basal diet and reared under normal thermal conditions (23 ± 1 °C) to serve as a negative control. Meanwhile, the other four groups were exposed to cyclic heat stress (34 ± 1 °C for 8 h per day) and were fed a basal diet supplemented with Spirulina at a concentration of 0, 0.5, 1 or 1.5%. Spirulina supplementation to heat-stressed broilers was able to alleviate the negative impacts of heat stress on the final average daily gain, body weight and feed conversion ratio, with the best impact observed among the chickens fed 1% Spirulina. Hematological results indicate increasing hemoglobin and hematocrit levels with Spirulina supplementation compared to the non-supplemented stressed group. Further, Spirulina supplementation significantly influenced blood lipid metabolites marked by reduced serum cholesterol and low-density lipoprotein (LDL), and increased high-density lipoprotein (HDL) levels. The lipid peroxidation level was reduced (p < 0.05), while the antioxidant enzyme activity was increased with Spirulina supplementation to the heat-stressed group. Spirulina supplementation at 0.5 or 1% improved carcass dressing, breast and leg percentages. It can be concluded that dietary Spirulina supplementation at 0.5 or 1% to broiler reared under heat stress conditions can effectively improve broiler production performance and balance the redox status.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Blue-Green Algae (Spirulina platensis) Alleviates the Negative Impact of Heat Stress on Broiler Production Performance and Redox Status

Moustafa

Alsanie

Gaber

et al. 2021

Animals

View full text Add to dashboard Cite

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“…Relatedly, specific richness was greater in hot climatic conditions than in the temperate climatic conditions in feces of pigs [20]. In other studies, HS did not show alterations of alpha-diversity such as Shannon index of the gut microbiota in cecum of laying hens [21], cecum of broiler chickens except phylogenetic diversity [22], ileum and jejunum of ducks [23], feces of pigs [24,25] (%) are presented depending upon the availability of the information in the literature. THI, temperature humidity index.…”

Section: Effect Of Heat Stress On Alpha-diversitymentioning

confidence: 97%

“…Although alpha-diversity of gut microbiota is minimally affected by HS, gut microbiota at the community level is usually influenced by HS, especially due to changes of the microbiota at the lower taxonomic levels such as family and genus levels. The principal coordinate analysis based on beta-diversity of the overall microbial community composition suggests that microbiota in ileum [19] and cecum [22] [25] also resulted in two distinct microbiota communities. But, HS effect has differential impacts on the microbiota communities in the different segments of guts.…”

Section: Effect Of Heat Stress On Microbiota Communities Based On Primentioning

confidence: 99%

Heat stress on microbiota composition, barrier integrity, and nutrient transport in gut, production performance, and its amelioration in farm animals

Patra

Kar

2021

J Anim Sci Technol

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“…Furthermore, due to the higher tissue metabolism caused by intensive genetic selection for more rapid growth, commercial broiler has recorded a reduction in heat tolerance [ 6 ]. The scientific literature is abundant in evidence proving that HS affects performance [ 7 , 8 , 9 ], biochemical parameters [ 10 , 11 ] gut microbiota [ 12 , 13 , 14 ], immune response [ 15 , 16 ], and carcass quality and safety [ 17 , 18 ] of broiler chickens.…”

Section: Introductionmentioning

confidence: 99%

Heat Stress in Broiler Chickens and the Effect of Dietary Polyphenols, with Special Reference to Willow (Salix spp.) Bark Supplements—A Review

et al. 2021

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Over the last decade, there has been a growing interest in the use of a wide range of phytoadditives to counteract the harmful effects of heat stress in poultry. Willow (Salix spp.) is a tree with a long history. Among various forms, willow bark is an important natural source of salicin, β-O-glucoside of saligenin, but also of polyphenols (flavonoids and condensed tannins) with antioxidant, antimicrobial, and anti-inflammatory activity. In light of this, the current review presents some literature data aiming to: (1) describe the relationship between heat stress and oxidative stress in broilers, (2) present or summarize literature data on the chemical composition of Salix species, (3) summarize the mechanisms of action of willow bark in heat-stressed broilers, and (4) present different biological effects of the extract of Salix species in different experimental models.

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Effect of chronic cyclic heat stress on the intestinal morphology, oxidative status and cecal bacterial communities in broilers

Cited by 45 publications

References 45 publications

Blue-Green Algae (Spirulina platensis) Alleviates the Negative Impact of Heat Stress on Broiler Production Performance and Redox Status

Blue-Green Algae (Spirulina platensis) Alleviates the Negative Impact of Heat Stress on Broiler Production Performance and Redox Status

Heat stress on microbiota composition, barrier integrity, and nutrient transport in gut, production performance, and its amelioration in farm animals

Heat Stress in Broiler Chickens and the Effect of Dietary Polyphenols, with Special Reference to Willow (Salix spp.) Bark Supplements—A Review

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