Impact of gut microbiota structure in heat-stressed broilers

Shi, Dayou; Bai, Lin; Qu, Qian; Zhou, Shanshan; Yang, Ming; Guo, Shining; Li, Qiuhong; Liu, Cui

doi:10.3382/ps/pez026

Cited by 130 publications

(125 citation statements)

References 44 publications

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“…Phylum Bacteroidetes have a superb ability to utilize the nutrients including simple and complex sugars and polysaccharides for its growth, so as can adapt to environmental changes and stresses ( Wexler, 2007 ). Increased phylum Bacteroidetes also were observed in post-traumatic stressed mice ( Gautam et al, 2018 ), heat stressed birds ( Shi et al, 2019 ; Zhu et al, 2019 ). Consistently, here the phylum Bacteroidetes was positively associated with the concentration of glycerol and arabitol in the colonic digesta, which are metabolites in the carbohydrate metabolic pathway.…”

Section: Discussionmentioning

confidence: 98%

The Microbiome–Metabolome Response in the Colon of Piglets Under the Status of Weaning Stress

Jiang

Zhao

et al. 2020

Front. Microbiol.

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Weaning is stressful for piglets involving nutritional, physiological, and psychological challenges, leading to an increase in the secretion of cortisol, changes in gut microbiome and metabolites, whereas the underlying relationships remain unclear. To elucidate this, 14 Meishan female piglets were divided into the weaning group and the suckling group at the age of 21 days paired by litter and body weight. After 48 h of experiment, weaned piglets had lower body weight, but higher salivary cortisol level than that of their suckling litter mates ( P < 0.05). The composition of the colonic bacterial community and metabolites were different between the two groups, and the first predominant genus of the suckling and weaned piglets colonic microbiome were Bacteroides and Prevotellaceae-NK3B31 group respectively. The suckling piglets had higher proportions of phylum Bacteroidetes and Lentisphaerae , and genus Bacteroides and Lactobacillus in the colonic microbial community, but lower abundance of genus Prevotellaceae-NK3B31 group than that of the weaned piglets ( P < 0.05). Accordingly, there were 15 colonic metabolites differed between the two groups, in which 2 metabolites (phenylacetic acid and phenol) negatively related to the abundant of Lactobacillus genus ( P < 0.05), while 9 metabolites (acetic acid, arabitol, benzoic acid, caprylic acid, cholesterol, dihydrocholesterol, galactinol, glucose phenol, phenylacetic acid, and oxamic acid, glycerol, propionic acid) positively associated with the proportion of Prevotellaceae-NK3B31 group genus ( P < 0.05). Furthermore, the salivary cortisol level negatively associated with the abundance of phylum Lentisphaerae , but positively associated with the phylum Bacteroidetes and the genus Prevotellaceae-NK3B31 group ( P < 0.05) respectively. These results provide us with new insights into the cause of the gut microbiome and stress, and the contributions of gut microbiome in metabolic and physiological regulation in response to weaning stress.

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Section: Discussionmentioning

confidence: 98%

The Microbiome–Metabolome Response in the Colon of Piglets Under the Status of Weaning Stress

Jiang

Zhao

et al. 2020

Front. Microbiol.

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“…Heat stress (HS) could lead to meat quality issues due to increased ante-and post-mortem glycolytic metabolisms coupled with a reduced protein synthesis and turnover, enhanced fat deposition, and the overproduction of reactive oxygen species [10]. The gastrointestinal tract (GIT) is also very responsive to heat, which alters intestinal microbiota composition [11] and decreases the integrity of the intestinal epithelium [12]. Since exposure to high temperatures is difficult to avoid in intensive production systems, losses in the production and mortality are high [13].…”

Section: Introductionmentioning

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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“…A temperature above 30 °C represents a heatstressed condition for birds and is one of the most common stressors that affect the production criteria in poultry (Kamboh et al, 2013;Ma et al, 2015). Studies on broilers showed that heat stress disrupted the equilibrium between antioxidants and reactive oxygen species (Gu et al, 2012;Nisar et al, 2013), increased tissue damage (Abidin & Khatoon, 2013;Huang et al, 2018), impaired metabolic function (Habibian et al, 2014), and even changed the bacterial composition in the intestine (Wang et al, 2018;Shi et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Use of a hydroalcoholic extract of Salix alba L. bark powder in diets of broilers exposed to high heat stress

Sărăcilă¹,

Panaite²,

Șoica³

et al. 2019

SA J. An. Sci.

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A study was conducted to determine the effects of dietary hydroalcoholic willow bark extract powder (HWE) supplemented to broilers (14-42 days old) that were exposed to heat stress, on the performance, serum biochemical parameters, liver oxidative status and caecal microflora. The feeding trial was conducted on 120 Cobb 500 broilers (14 days old), assigned to three treatments (T0, T25, and T50), each treatment consisting of eight replicates (five chicks per replicate). The broilers were housed in an experimental hall at a 32 °C constant temperature and 23 hours light regimen. Unlike the dietary control treatment (T0), the experimental treatments were supplemented with 25 g HWE powder/100 kg diet (T25), and 50 g HWE powder 100 kg diet (T50), respectively. Dietary HWE powder did not affect the broilers' performance significantly (14-42 days). A significantly lower amount of malondialdehyde was noticed in the liver of broilers from T25 and T50 treatments in comparison with broilers from T0. Also, the serum cholesterol, triglycerides and alanine aminotransferase were significantly lower in broilers fed with T50, compared with those fed with T0. At 35 and at 42 days, the broilers from T25 and T50 recorded a significantly lower number of E. coli and staphylococci and a higher number of lactobacilli in the caecum than those of T0. It could be concluded that supplementation of dietary HWE powder reduced some of the adverse effects of heat stress, the most effective being the level of 50 g/100 kg diet.

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Impact of gut microbiota structure in heat-stressed broilers

Cited by 130 publications

References 44 publications

The Microbiome–Metabolome Response in the Colon of Piglets Under the Status of Weaning Stress

The Microbiome–Metabolome Response in the Colon of Piglets Under the Status of Weaning Stress

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

Use of a hydroalcoholic extract of Salix alba L. bark powder in diets of broilers exposed to high heat stress

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