scholarly journals Effects of dietary supplementation with the antimicrobial peptide WK3 on growth performance and intestinal health in diarrheic weanling piglets

2021 ◽  
Vol 49 (1) ◽  
pp. 147-153
Author(s):  
Chunyu Cao ◽  
Jianan Li ◽  
Qiuyuan Ma ◽  
Licong Zhang ◽  
Anshan Shan
2014 ◽  
Vol 59 (No. 7) ◽  
pp. 327-336 ◽  
Author(s):  
L. Hu ◽  
L. Che ◽  
G. Su ◽  
Y. Xuan ◽  
G. Luo ◽  
...  

The effects of yeast-derived protein (YP) on growth performance, intestinal health, and oxidative status of weanling piglets were investigated. A total of 80 weaned piglets (PIC 327 × 1050, 26 ± 2 days old, 6.20 ± 0.10 kg) were randomly allocated into 2 groups, 5 pens per each group and 8 piglets per each pen, receiving control diet and diet with inclusion of 4% YP at the expenses of fish meal (YP diet) for a period of 28 days. The diets were formulated to contain similar nutrient levels. Compared with control, piglets fed YP diet had markedly higher overall average daily growth (+14%, P < 0.05) and lower final feed conversion ratio (−8%, P < 0.01). Concentrations of serum serine, cystathionine, histidine, hydroxyproline, and urea were decreased in piglets fed YP diet (P < 0.05), whereas alanine and aspartate were increased (P < 0.01). Moreover, serum antioxidant enzyme activity (glutathione peroxidase) was markedly increased (+19%, P < 0.01) in piglets fed YP diet relative to piglets fed control diet. In addition, feeding YP diet considerably (P < 0.05) increased the copy numbers of lactobacilli and total bacteria in the colon of piglets at the end of the experiment. Furthermore, the mRNA abundance of innate immunity-related genes (TLR4, NF-κB1, and IL-6) was increased (P < 0.06) in the ileum of piglets fed YP diet. Collectively, results of this study indicated that diet with the inclusion of YP improved growth performance and partially enhanced anti-oxidative capability as well as intestinal innate immunity of weaning piglets.


Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1998
Author(s):  
Daixiu Yuan ◽  
Jing Wang ◽  
Dingfu Xiao ◽  
Jiefeng Li ◽  
Yanhong Liu ◽  
...  

Eucommia ulmoides flavones (EUF) have been demonstrated to attenuate the inflammation and oxidative stress of piglets. This study aimed to test whether EUF could be used as an alternative antibiotic growth promoter to support growth performance and maintain intestinal health in weanling piglets. Weaned piglets (n = 480) were assigned into three groups and fed with a low-protein basal diet (NC), or supplementation with antibiotics (PC) or 0.01% EUF (EUF). Blood, intestinal contents, and intestine were collected on days 15 and 35 after weaning. The results showed the PC and EUF supplementations increased (p < 0.05) body weight on day 35, average daily gain and gain: feed ratio from day 15 to day 35 and day 0 to day 35, whereas decreased (p < 0.05) the diarrhea index of weanling piglets. EUF treatment increased (p < 0.05) jejunal villus height: crypt depth ratio, jejunal and ileal villus height, and population of ileal lactic acid bacteria on day 15 but decreased (p < 0.05) the population of ileal coliform bacteria on day 15 and day 35. These findings indicated the EUF, as the potential alternative to in-feed antibiotic growth promoter, could improve growth performance and intestinal morphology, and decrease colonization of coliform bacteria and diarrhea index in weanling piglets.


2020 ◽  
Author(s):  
Daixiu Yuan ◽  
Jing Wang ◽  
Dingfu Xiao ◽  
Jiefeng Li ◽  
Yanhong Liu ◽  
...  

Abstract Background Eucommia ulmoides flavones (EUF), have been demonstrated to attenuate the inflammation and oxidative stress of piglets. This study was designed to test whether EUF could be as an antibiotic alternative to support growth performance and maintain intestinal health in weanling-piglets. Weaned-piglets (n = 480) were assigned into 3 groups and fed with a low-protein basal diet (NC), or supplementation with antibiotics (PC) or 0.1‰ EUF (EUF). Blood, intestinal contents and intestine were collected on d-15 and d-35, respectively. Results The results showed that the body weight on d-35, average daily gain and gain : feed from d 15 to d 35 and d 0 to d 35 in piglets of PC and EUF treatments were higher than (p < 0.05) these in NC treatment, whereas PC and EUF treatments decreased (p < 0.05) the diarrhea index of weanling piglets. Dietary supplementation of EUF significantly enhanced (p < 0.05) the serum concentrations of total protein, alanine transaminase and the immunoglobulin G on d-15 of piglets compared to piglets in NC treatment. EUF supplementation increased (p < 0.05) the jejunal and ileal villus height and the population of ileal lactic acid bacteria on d-15 but remarkable decreased (p < 0.05) the population of ileal coliform bacteria on d-15 and d-35. Conclusion These findings indicated the antibiotic alternative capacity of EUF in piglets exhibiting by improving growth performance and intestinal morphology, decreasing colonization of coliform bacteria and diarrhea index in weanling piglets.


Sign in / Sign up

Export Citation Format

Share Document