Add like
Add dislike
Add to saved papers

Scrophularia striata Extract Supports Rumen Fermentation and Improves Microbial Diversity in vitro Compared to Monensin.

In the search for natural alternatives to antibiotic feed additives, we compared the efficacy of two doses of Scrophularia striata extract [ S. striata -Low at 40 and S. striata -High at 80 mg g-1 dry matter (DM)] with monensin (monensin) and a negative control in the modulation of rumen fermentation, methane production and microbial abundance in vitro . Microbes were investigated using qPCR and 16S rRNA targeted sequencing. Data showed that the addition of S. striata increased production of total short chain fatty acids (SCFA) in comparison to both monensin and control ( P = 0.04). The addition of S. striata increased acetate production, and increased propionate at the higher dosage ( P < 0.001). Supplementation of S. striata lowered methane production ( P < 0.001) compared to control but with no effect compared to monensin. Ammonia concentration decreased by 52% ( P < 0.001) with S. striata -High supplementation (4.14 mmol L-1 ) compared to control, which was greater than that of monensin (36%). The diversity of rumen bacteria was reduced ( P < 0.001) for monensin and S. striata for both the number of observed OTUs and the Chao1 index. Quantitative analysis of Protozoa showed a decrease in the monensin treatment ( P = 0.05) compared to control. Archaea copy numbers decreased equally in both S. striata -High and monensin treatments compared to the control group. Supplementation with S. striata increased relative abundances of Fibrobacteres ( P < 0.001) and Planctomycetes ( P = 0.001) in comparison to both the control and monensin treatments. Significant negative correlations were observed between the abundances of Bacteroides, Fusobacterium , and Succinivibrio genera and methane ( r > -0.71; P ≤ 0.001). The abundance of Fibrobacter genera and total SCFA ( r = 0.86), acetate ( r = 0.75), and valerate ( r = -0.51; P < 0.001) correlated positively. These results suggest that S. striata supplementation at 80 mg g-1 DM inclusion, similar to monensin, supports rumen fermentation, lowers methane and ammonia production. However, S. striata supported rumen fermentation toward higher total SCFA and propionate production, while unlike monensin still supported a diverse rumen microbiome and an increase in cellulolytic bacteria such as Fibrobacter .

Full text links

We have located links that may give you full text access.
Can't access the paper?
Try logging in through your university/institutional subscription. For a smoother one-click institutional access experience, please use our mobile app.

For the best experience, use the Read mobile app

Mobile app image

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app

All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.

By using this service, you agree to our terms of use and privacy policy.

Your Privacy Choices Toggle icon

You can now claim free CME credits for this literature searchClaim now

Get seemless 1-tap access through your institution/university

For the best experience, use the Read mobile app