Miguel A Pérez

This is probably one of the fundamental questions of modern microbiology, which has always focused on the search for criteria for identifying microorganisms. Remember Bergey's classic bacteria guide? The morphology of the colonies was supported by the composition of the nutrient medium. Then the criterion was the ability to metabolize specific carbohydrates. And now 16s sequencing has been added t ...

Dr Piotr Stanislawski 100%. Everybody speak about activity, but nobody about substrate. Is it enough substrate quantity for enzyme in the feed? If not, what is reason to increase enzyme dosage? Are enzyme's matrix values also depending on substrate content? How can we calculate this? A lot of complicated problems for nutritionists.

Dr Piotr Stanislawski Hi Piotr!!! Nice to hear from you again! What is problem? Tr-inhibitor? Simply drop off SBM and replace it by SFM, add a little bit lysine, proper enzymes mix (you know what is necessary to add:)) and everything will be ok! Including protease, of course. My factory apply proteases mix, too: alkaline, neutral and acid protease. Any case it is possible to improve AA digestibil ...

Edwin T Moran Dear Mr.Edwin, yes it is. The best way is to mix enzymes cocktail and hold it some time during 30 centigrades in thermostat. We perform this test during a half year. Activity of all enzymes was approx.80% or normal level. But protease was not DP-100, it was from another producer.

S. M. A. Halim Dear Mr.Halim, I'm absolutely agree with you. But it's necessary to keep in mind that we can substitute with the herbal methionine approx. 50% of total added methionine. The rest of methionine any case is necessary to add in chemical form. FCR =1.35 in Bangladesh broilers is excellent result, my best congratulations!