Luc Goethals

The setup and concept of the trial is very nice indeed, but the results are a bit uncommon. It's strange that a 109 grams difference in BWG (2318 versus 2209 grams is NOT significant. The same for 7 pts FCR (1.47 versus 1.40). And an improvement of 18 points FCR (1.47 versus 1.29) for a relatively inert material like yeast cell wall is out of physiological perception. Maybe the control group was r ...

Indeed a possibly very interesting article and overview about saponins and the use in Animal Nutrition. But the contribution dates from 2009, while we are now 2025, 16 years later. In those years the knowledge and insights about saponins have grown, so it would be interesting to see an update.

Indeed, a new and quite particular approach. I would also be interested to receive the full study or publication (luc@sanluc.be). The main question will raise how appropriate such IN VITRO data are for the field and in VIVO. Since it's extensively described that especially for Clostridium perfringens, data from in vitro studies have poor or no value for in VIVO, because Clostridium perfringens is ...

Honestly, I also doubt if 0.4 log units really make a difference. On top this number is an average of 5 studies, which means that some study results might have been even lower or negative. From various scientific publications a drop of minimal 2-3 logs in the cecum are required in order to see really reduction in practise. Also, the "infection level" is too low to obtain representative results. Si ...

Thanks for the valid and professional input. I do fully agree.

Dear Dr. Rajendra,Thanks for your adequate feedback and clarifications.I can't more than agree with some of your statements such as the feed preservation efficacy of propionic and formic acid: in fact "decontaminants" rather than "organic acids". And for sure, since decennia most industrial preservatives have been based on propionic and formic acid and their salts and are abundantly used. But thes ...

Thanks for this information, interesting, but revealing a lot of questions or request for more detailed information.1) Could you document the synergism between the organic acids and salts you are using in your product? Meaning each time the individual effect at the used level and then the various combinations?2) What is the dosage you recommend and what is the level and concentration you are reach ...

I wonder if the trial protocol and set up is adequate for such studies and making reliable conclusioins possible. With only +3 replicates of 15 birds per pen, means that 1 single bird has a 2,2% impact on whatever result. Mortality documents this very well. In the T1 no single bird died, in T2 and T3 one bird died, in T0 two birds died. From what we learned at higher school, is that one should ...

I wonder if I am reading the data from the experiment correctly. ? For the JEJUNUM, I see the VH/CD ratio of the DON+treatment is worse than the DON alone group and the negative impract (7,8 -> 7,4) is much larger than from DON alone (7,9 -> 7,8); If my interpretation would be correct, than this is very bad, since it looks that the product is aggravating the situation. Also in the DUODENUM ...