scholarly journals Influence of dietary inclusion of Bacillus licheniformis on laying performance, egg quality, antioxidant enzyme activities, and intestinal barrier function of laying hens

2013 ◽  
Vol 92 (9) ◽  
pp. 2389-2395 ◽  
Author(s):  
K. Lei ◽  
Y.L. Li ◽  
D.Y. Yu ◽  
I.R. Rajput ◽  
W.F. Li
Cells ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 527
Author(s):  
Jie Fu ◽  
Tenghao Wang ◽  
Xiao Xiao ◽  
Yuanzhi Cheng ◽  
Fengqin Wang ◽  
...  

This study investigated the effects of dietary C. butyricum ZJU-F1 on the apparent digestibility of nutrients, intestinal barrier function, immune response, and microflora of weaned piglets, with the aim of providing a theoretical basis for the application of Clostridium butyricum as an alternative to antibiotics in weaned piglets. A total of 120 weanling piglets were randomly divided into four treatment groups, in which piglets were fed a basal diet supplemented with antibiotics (CON), Bacillus licheniformis (BL), Clostridium butyricum ZJU-F1 (CB), or Clostridium butyricum and Bacillus licheniformis (CB-BL), respectively. The results showed that CB and CB-BL treatment increased the intestinal digestibility of nutrients, decreased intestinal permeability, and increased intestinal tight junction protein and mucin expression, thus maintaining the integrity of the intestinal epithelial barrier. CB and CB-BL, as exogenous probiotics, were also found to stimulate the immune response of weaned piglets and improve the expression of antimicrobial peptides in the ileum. In addition, dietary CB and CB-BL increased the proportion of Lactobacillus. The levels of butyric acid, propionic acid, acetic acid, and total acid were significantly increased in the ceca of piglets fed CB and CB-BL. Furthermore, we validated the effects of C. butyricum ZJU-F1 on the intestinal barrier function and immune response in vitro and found C. butyricum ZJU-F1 improved intestinal function and enhanced the TLR-2-MyD88-NF-κB signaling.


Author(s):  
Chunhong Li ◽  
Yulong Dong ◽  
Zhong Hao Li ◽  
Ruihua Zhang ◽  
Ruiling Qin ◽  
...  

A study was conducted to evaluate the effect of traditional Chinese herbal medicines (TCHM) on egg production, egg quality and antioxidant enzyme activities in chickens, astragalus membranaceus (AM), angelicae sinensis extract (ASE) and danggui buxue san (DBS) were used for the study. 300 hens of 56 weeks of age were randomized into 10 groups. AM, ASE and DBS were added into the diets of the animals at the dosage of 5mg/Kg,10 mg/Kg and 15 mg/Kg respectively from group Ito group IX. The hens of group X, as of control, were fed with the diet without TCHM. The added TCHM Period was 15 days. The results showed that DBS had the ability on improving egg production, egg quality and antioxidant enzyme activities in chickens. At the same time, DBS was added into the diets of the animals at the dosage of 10mg/Kg was recommended for application.


2016 ◽  
Vol 16 (2) ◽  
pp. 292-300 ◽  
Author(s):  
Panwang Zhang ◽  
Tao Yan ◽  
Xiliang Wang ◽  
Shichang Kuang ◽  
Yuncai Xiao ◽  
...  

2021 ◽  
Vol 12 ◽  
Author(s):  
Lei Li ◽  
Man Wang ◽  
Jikuai Chen ◽  
Zhuoran Xu ◽  
Shaokang Wang ◽  
...  

Heat stroke (HS) models in rats are associated with severe intestinal injury, which is often considered as the key event at the onset of HS. Probiotics can regulate the gut microbiota by inhibiting the colonization of harmful bacteria and promoting the proliferation of beneficial bacteria. Here, we investigated the preventive effects of a probiotic Bacillus licheniformis strain (BL, CMCC 63516) on HS rats as well as its effects on intestinal barrier function and gut microbiota. All rats were randomly divided into four groups: control (Con) + PBS (pre-administration with 1 ml PBS twice a day for 7 days, without HS induction), Con + BL group (pre-administration with 1 ml 1 × 108 CFU/ml BL twice a day for 7 days, without HS induction), HS + PBS (PBS, with HS induction), and HS + BL (BL, with HS induction). Before the study, the BL strain was identified by genomic DNA analysis. Experimental HS was induced by placing rats in a hot and humid chamber for 60 min until meeting the diagnostic criterion of HS onset. Body weight, core body temperature, survival rate, biochemical markers, inflammatory cytokines, and histopathology were investigated to evaluate the preventive effects of BL on HS. D-Lactate, I-FABP, endotoxin, and tight-junction proteins were investigated, and the fluorescein isothiocyanate-dextran (FD-4) test administered, to assess the degree of intestinal injury and integrity. Gut microbiota of rats in each group were analyzed by 16S rRNA sequencing. The results showed that pre-administration with BL significantly attenuated hyperthermia, reduced HS-induced death, alleviated multiple-organ injury, and decreased the levels of serum inflammatory cytokines. Furthermore, BL sustained the intestinal barrier integrity of HS rats by alleviating intestinal injury and improving tight junctions. We also found that BL significantly increased the ratios of two probiotic bacteria, Lactobacillus and Lactococcus. In addition, Romboutsia, a candidate biomarker for HS diagnosis, was unexpectedly detected. In summary, BL pre-administration for 7 days has preventative effects on HS that may be mediated by sustaining intestinal barrier function and modulating gut microbiota.


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