Chlodwig FRANZ

Dear Colleagues, these are interesting results confirming our research of end of the 1990ies: we investigated in a trial with weaning piglets the effect of the so called "Moro's Carrot Soup"on the incidence and score of diarrhea in comparison to the antibiotic flavophospholipol. The results with the carrot soup - and later on with isolated purified short chain galacturonic acids (gluco-oligosaccha ...

Very interesting results - but for me as scientist it would be necessary to know the composition of herbal materials to get an idea of substance - effect - relation. Prof. Chlodwig Franz, Vetmeduni Vienna, Austria

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The results of these vet-clinical experiments seem interesting, but unfortunately there is no clear Information on the composition of the product. Therefore a scientifically sound validation of this work is not possible due to the fact that no 'substance - effect - (cor)relation' can be seen and discussed. At least a more detailed Information on the composition (not percentages, but listing the co ...

As regards "phytochemicals" or "phytogenics" we have published review articles on essential oils in Flavour & Fragrance Journal 2010 and in British Poultry Sci. generally on phytogenics also 2010. If someone would like to have a pdf don't hesitate to ask at our institutes secretariat: alexandra.smetaczek@vetmeduni.ac.at Prof.em.Chlodwig FRANZ, Vetmeduni Vienna

It would be interesting to know which "essential oils" are used - similar to the organic acids, where lauric and sorbic - benzioc acid are mentioned / declared. Are the "essential oils" really the volatile compounds obtained by (steam) distillation of plant material (as it is the definition of ess. oils), or obtained by any other physical / chemical extraction method, or are single (purified or s ...

I'm very happy that a first phytogenic (=plant derived) feed additive is approved as zootechnical additive due to its clear concept, quality and efficacy! This should motivate all serious producers to follow this line: when quality and efficacy are given, there is no need to remain at the 'flavouring' level only! Acceptance, credibility and seriosity of 'phytogenics' - as we created this term end ...

Pumpkin would be an easily available vegetable (also the residues at pumpkin seed production). And for pig health and better performance you could add some Mexican oregano to the diet.

From the scientific point of view there are always the same problems with such publications: 1) the exact composition is not mentioned (ingredients and percentage) 2) the definition of plants (crude drug or powder) / extracts / essential oils is either missing or unclear, sometimes (semi)synthetic nature-identical substances are used and declared as essential oils or extracts 3) quality data = ...

Nice, but very general without any comment to the quality of the herbal material or herbal products: this is the main problem of herbal products for human and animal use in US (already acknowledged by the US authorities) that quality control is lacking. There is such a high phytochemical polymorphism within most of the species that indicating the use of a plant (species) is insufficient if the che ...