Protease enzyme and trypsin inhibitor: Novus’s results

Pirzado M Zakria Using "cocktail" of some enzymes there is not additive effect. As the general rule, NSP are calculated as 100% for energy, phytase 100% for minerals and protease 100% for protein/AA (I mean 100% as declared). Other effect of all enzymes are calculated partly or neglected (eg. AA for NSP or energy for phytase). This is not just simple adding. Each enzyme company have own research and recommendations.
Pls ask your enzyme/premix supplier for details.

Raquel Araujo, interesting and coherent information. However, I would like to ask a question about the nature of the protein, specifically that of soy. It is known that the gastric digestion of soy protein, produces a series of peptides with an action of importance for the health of the animal, as an antioxidant, of increasing the phagocytic capacity of macrophages, among others. Thus it can be deduced that the protein source goes beyond the simple supply of amino acids. It turns out that when we replace one protein source with another, we simply rely on the amino acid composition. And when we analyze the results, we usually associate the differences in animal performance, the possible differences in the digestibility of amino acids. This reality also has implications when we use amino acid supplementation, reducing the protein source. In this context, how is the use of proteases? I will be reasoning correctly.

Thanks all for the good discussion.
I would like to confirm a few points mentioned above:

Indeed exogenous Proteases do contribute to mitigate variability in quality from SBM (and protein sources) by improving aa digestibility and degrading Anti Nutritional Factors like Trypsin inhibitors and as well as lectin. True that the benefits are all the more important that digestibility of the amino acids of the raw material is suboptimal.
As also mentioned previously, exogenous Proteases also contribute positively to Gastrointestinal Functionality by reducing the risk of development of enteric pathogens.

Furthermore, exogenous proteases have a proven compatibility and even clear additivity with other feed enzymes such as Phytases, Xylanases & Amylases.
In a recent collaboration with Massey University, New Zealand, we at DSM have also observed synergistic effect on a.a. digestibility between DSM ProAct and DSM HiPhos:
A.J.Cowieson, J.O.B.Sorbara, G.Pappenberger, M.R.Abdollah, V.Ravindran. Toward standardized amino acid matrices for exogenous phytase and protease in corn–soybean meal–based diets for broilers. Poultry Science.
Available online 25 March 2020. https://doi.org/10.1016/j.psj.2019.12.071

Best regards,

Can i reduce crude protein in diets when i used protease enzyme (cibenza d100) in corn soya diets

Amin Nahal In general, yes. However, as a nutritionist, the focus needs to be on the digestibility of Amino Acids (AA) and energy value (ME) of the protease in use. It will depend on many factors mainly related to the quality of SBM used in the diets and the formulation (AA/ME ratio!) and many other factors. I will recommend you reach out to one of the R&D team members at Novus International, and they will be very happy to help you. You can also start with the Novus representative/distributor in your Region/Country!

Nasser H Odetallah thanks happy eid

Amin Nahal Yes, you can reduce crude protein levels in the diet when you use protease in corn soya diets, but the matrix will depend on many factors including quality of soybean meal

Guillaume Trepo, message of interest for understanding the matter at hand. However, with regard to the compatibility of the action of the protease with the different carbohydrates, exactly one of the ones that has the greatest action on the soy fiber, mannanase, was missing. The relevance of this detail is related to the fact that the fiber soybean, admittedly, has a negative effect on the swine microbiota. I believe that this enzyme may also be compatible with protease.

Dear Prof. Daulant Rehman Khan

Please make sure the protease you are using is low pH gut stable. From my experience there are many so called proteases av. in the market but some of them is not pH stable. As the protease will first start function in small intestine it has to pass the stomach. From the nature point of view Proteases have the best working condition at pH 8 to 10.
Producing Feed Proteases need to take this into consideration and create them gut stable and lowering the optimum Ph.
A different thing could be your diet formulation has been too concentrated and the birds didn't need this higher digestibility and thereby didn't make use of it.
Running a trial with protease you need to be around 15 % below breeder recommendation to see the effect, that is my experience.

Rgds. Arne Korsbak