Probiotic Escherichia coli Nissle 1917 protect chicks from damage caused by Salmonella enterica serovar Enteritidis colonization

Wu, Shih-Chung; Zhang, Qianyun; Cong, Guanglei; Xiao, Yunqi; Shen, Yiru; Shan, Zhiguang; Wei, Zhao; Shi, Shourong

doi:10.1016/j.aninu.2023.06.001

Cited by 9 publications

(6 citation statements)

References 79 publications

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“…Owing to the higher heat increment associated with crude protein than with fat and starch, some researchers have proposed that it is possible to improve HS by reducing dietary crude protein level. However, numerous studies have shown that reducing dietary crude protein levels not only fails to improve performance under HS, but also significantly reduces daily gain and feed conversion efficiency ( Liu et al, 2016 ; Awad et al, 2018 ; Wu et al, 2023 ). However, amino acids do not require enzymes for digestion and do not generate heat during the digestion process.…”

Section: Discussionmentioning

confidence: 99%

High-energy and high-amino acid diet enhances production performance and antioxidant capacity in yellow-feathered broilers under heat stress

Mao,

Chen,

Zhang

et al. 2024

Poultry Science

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Section: Discussionmentioning

confidence: 99%

High-energy and high-amino acid diet enhances production performance and antioxidant capacity in yellow-feathered broilers under heat stress

Mao,

Chen,

Zhang

et al. 2024

Poultry Science

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“…To verify its effect on normal poultry gut microbiota, the growth of several common poultry gut microbes in the presence of effective concentrations of CO was assessed. The study determined that the same concentration of CO also affected L. helveticus , E. faecalis , S. thermophilus , which are part of the normal gut flora in chickens [ 36 , 37 , 38 ], and E. coli Nissle, a beneficial bacterium for the chicken gut [ 39 ]. The broad-spectrum antimicrobial activity observed against both pathogenic and beneficial bacteria suggests a need for caution in direct oral application.…”

Section: Discussionmentioning

confidence: 99%

Unveiling the Potential Ways to Apply Citrus Oil to Control Causative Agents of Pullorum Disease and Fowl Typhoid in Floor Materials

Julianingsih,

Tung,

Thapa

et al. 2023

Animals

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This study investigates the potential role of Cold-pressed Valencia Terpeneless citrus oil (CO), as a natural antimicrobial, in controlling causative agents of pullorum disease and fowl typhoid in floor materials for poultry farming, specifically wooden chips. The study addresses the issues that have arisen as a result of the reduction in antibiotic use in poultry farming, which has resulted in the re-emergence of bacterial diseases including salmonellosis. CO efficiently inhibits the growth of pathogens including various serovars of Salmonella enterica (SE), including SE serovar Gallinarum (S. Gallinarum) and SE serovar Pullorum (S. Pullorum), in a dose-dependent manner. Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) of CO showed potential for controlling diverse S. Gallinarum and S. Pullorum isolates. Growth inhibition assays demonstrated that 0.4% (v/w) CO eliminated S. Pullorum and S. Gallinarum from 24 h onwards, also impacting poultry gut microbiota and probiotic strains. Floor material simulation, specifically wooden chips treated with 0.4% CO, confirmed CO’s effectiveness in preventing S. Gallinarum and S. Pullorum growth on poultry house floors. This study also investigated the effect of CO on the expression of virulence genes in S. Gallinarum and S. Pullorum. Specifically, the study revealed that the application of CO resulted in a downregulation trend in virulence genes, including spiA, invA, spaN, sitC, and sifA, in both S. Pullorum and S. Gallinarum, implying that CO may alter the pathogenicity of these bacterial pathogens. Overall, this study reveals that CO has the potential to be used as a natural antimicrobial in the prevention and management of Salmonella-related infections in chicken production, offering a viable alternative to control these re-emerging diseases.

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“…Therefore, the reduction of Trp influx into the brain as a result of the activation of the KYN metabolic pathway caused by HS might be one of the potential factors for HPA disorders (47,48). Although dietary Trp supplementation did not significantly increase the level of serum Trp, it significantly increased the expression of tryptophan transporter SLC6A14 in the liver, the absorption and utilization of Trp (12), the level of 5-HT content, and maintained gut homeostasis (49,50). Dietary Trp supplementation significantly increased hypothalamus TPH2 expression of heat-stressed broilers, enhanced the 5-HT metabolic pathway, and significantly increased Furthermore, another metabolic pathway of Trp is the microbial pathway.…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary tryptophan supplementation on rectal temperature, humoral immunity, and cecal microflora composition of heat-stressed broilers

Li,

Ouyang,

Deng

et al. 2023

Front. Vet. Sci.

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This trial aimed to determine the effects of tryptophan (Trp) on the rectal temperature, hormone, humoral immunity, and cecal microflora composition in broiler chickens under heat stress (HS). One hundred and eighty 18 days-old female Arbor Acres broilers were randomly divided into three treatment groups, with six replicates of ten birds in each replicate. The broilers were either raised under thermoneutral conditions (TN, 23 ± 1°C) or subjected to heat stress (34 ± 1°C for 8 h daily). The TN group received a basal diet, and another two heat-stressed groups were fed the basal diet (HS) or the basal diet supplemented with 0.18% Trp (HS + 0.18% Trp) for 21 consecutive days. The basal diet contained 0.18% Trp. Results revealed that HS increased the rectal temperature, serum epinephrine (EPI), and corticotropin-releasing hormone (CRH) concentrations (p < 0.05), reduced the bursal index, the levels of serum immunoglobulin A (IgA), IgG, IgM, and serotonin (5-HT) as well as the relative abundance of Actinobacteria in cecum (p < 0.05) compared with the TN group. Dietary supplementation of Trp decreased the rectal temperature, serum dopamine (DA), EPI, and the levels of CRH and L-kynurenine (p < 0.05), increased the bursal index, the levels of serum IgA, IgM, and 5-HT as well as the relative abundance of Ruminococcus torques group in cecum of heat-stressed broilers (p < 0.05) compared to HS group. In conclusion, dietary Trp supplementation decreased rectal temperature, improved cecal microbiota community and Trp metabolism, and enhanced humoral immunity of heat-stressed broilers.

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Probiotic Escherichia coli Nissle 1917 protect chicks from damage caused by Salmonella enterica serovar Enteritidis colonization

Cited by 9 publications

References 79 publications

High-energy and high-amino acid diet enhances production performance and antioxidant capacity in yellow-feathered broilers under heat stress

High-energy and high-amino acid diet enhances production performance and antioxidant capacity in yellow-feathered broilers under heat stress

Unveiling the Potential Ways to Apply Citrus Oil to Control Causative Agents of Pullorum Disease and Fowl Typhoid in Floor Materials

Effects of dietary tryptophan supplementation on rectal temperature, humoral immunity, and cecal microflora composition of heat-stressed broilers

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