Dietary High Sodium Fluoride Impairs Digestion and Absorption Ability, Mucosal Immunity, and Alters Cecum Microbial Community of Laying Hens
Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Key Laboratory of Animal Nutrition and Feed Science in East China, Ministry of Agriculture, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
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Author to whom correspondence should be addressed.
Animals 2020, 10(2), 179; https://doi.org/10.3390/ani10020179
Received: 24 December 2019
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Revised: 13 January 2020
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Accepted: 14 January 2020
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Published: 21 January 2020
(This article belongs to the Section Poultry)
Simple Summary
In the current study, the effects of dietary fluoride (F) on tissue retention, digestive enzymes activities, mucosal immunity, and cecum microbial community of laying hens were investigated. Results revealed that dietary high F intake increased the concentrations of F in duodenum, decreased intestinal digestive enzymes activities, reduced intestine mucosal immunity, and disturbed the composition of cecum microbiota.
(1) Background: This study was conducted to investigate the effects of dietary fluoride (F) on tissue retention, digestive enzymes activities, mucosal immunity, and cecum microbial community of laying hens. (2) Methods: Total of 288 37-week-old Hy-Line Gray laying hens with similar laying rate (85.16% ± 3.87%) were adapted to the basal diets for ten days, and then allocated into three groups at random (n = 9, 6, 6 replicates/group). The concentrations of F in the diets were 31.19 (the control group, CON), 431.38 (F400, low-F group) and 1237.16 mg/kg (F1200, high-F group), respectively. The trial lasted for 59 days. (3) Results: Results suggested that F residuals in duodenum responded to dietary F concentrations positively. The activities of amylase, maltase and lactase were decreased in high-F group, compared with those in the control group. The mRNA expression levels of jejunum and ileum secretory immunoglobulin A (sIgA) and Mucin 2, and sIgA concentrations were decreased inhigh-F group, than those in the control group. The observed operational taxonomic units (OTUs) of laying hens in high-F group were higher than the CON and low-F groups, and the bacterial structure was different from the other two groups. The Lactobacillus was higher in the control group, while Gammaproteobacteria, Escherichia-Shigella, Streptococcaceae, and Enterobacteriaceae were higher in the high-F group. (4) Conclusions: The actual results confirmed that dietary high F intake increased the F residuals in duodenum, and reduced the digestion and absorption of nutrients and immunity via decreasing the activities of digestive enzymes, impairing intestine mucosal immunity, and disturbing the cecum microbial homeostasis of laying hens.
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MDPI and ACS Style
Miao, L.; Zhu, M.; Li, H.; Xu, Q.; Dong, X.; Zou, X. Dietary High Sodium Fluoride Impairs Digestion and Absorption Ability, Mucosal Immunity, and Alters Cecum Microbial Community of Laying Hens. Animals 2020, 10, 179. https://doi.org/10.3390/ani10020179
AMA Style
Miao L, Zhu M, Li H, Xu Q, Dong X, Zou X. Dietary High Sodium Fluoride Impairs Digestion and Absorption Ability, Mucosal Immunity, and Alters Cecum Microbial Community of Laying Hens. Animals. 2020; 10(2):179. https://doi.org/10.3390/ani10020179
Chicago/Turabian StyleMiao, Liping, Mingkun Zhu, Huaiyu Li, Qianqian Xu, Xinyang Dong, and Xiaoting Zou. 2020. "Dietary High Sodium Fluoride Impairs Digestion and Absorption Ability, Mucosal Immunity, and Alters Cecum Microbial Community of Laying Hens" Animals 10, no. 2: 179. https://doi.org/10.3390/ani10020179
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