How closer control of enzyme supplements can boost feed production

Dan Pettersson, Science Manager, Novozymes, talks to NIRperformance.com about how controlling enzyme supplements can boost feed production. Adding enzymes to animal feed help reduce the use of antibiotics, but also increase the digestibility of feed thereby enhancing production and output. Watch the video to learn more about the many practical aspects of using enzyme supplements to enhance feed production.

What would you like to know about the use of enzyme supplements in feed production?

Ask us your question in the comments and we’ll get back to you with an answer from one of our experts.

 

5 comments
Claire Percy Smith
Claire Percy Smith moderator

@Kim Albert Perlado Final comments from Dan:

"Phytate in a feed ingredient or diet can be analysed by NIR or in a Dionex system and when the level of phytate is known the amount of phytase can be adjusted to fit the level of substrate. Typically the dosages are set so that efficacy will be sufficient. This is done in registrations for the EU market. The only thing that might be a problem is if the phytate level is too low and the amount of mineral P is heavily reduced. Then there is not sufficient substrate available to generate the digestible P necessary, and the mineral P is probably not enough to maintain performance. That is a serious problem and therefore feed producers do use safety margins on top of those already set by the enzyme producers.

There are several companies working on fine tuning NIR based phytate analysis.

Best regards Dan Pettersson"

Claire Percy Smith
Claire Percy Smith moderator

@Kim Albert Perlado Answer from Dan continued...

"As regards the P reduction in the diet it will be based either on feed table data on Inositol phosphate content, or analytics. The CVB table is a good and well updated source. It is no worse to use the phytate values provided by this feed table than using any other nutrient tabulated.

Analysing phytate (inositol phosphates) is tedious and requires analytical expertise. Hence this is never done on a routine basis but neither is arabinoxylan analysed in broiler feed in order to establish if a xylanase is needed one just adds the recommended level of xylanase and that actually works.

Claire Percy Smith
Claire Percy Smith moderator

@Kim Albert Perlado 

I have been in touch with Dan Pettersson from Novozymes who responded to your question. The answer is too long for this format, so I have split the answer up into several comments:

"First  the enzyme content variability. There should be very little variation in the amount of enzyme recovered. If there is a loss of phytase due to heat inactivation one should switch to a phytase that is formulated to resist the pelleting conditions. Novozymes can help with that J. Variability can also be caused by the analytical procedures. The old method by Engelen based on extraction of a few grams of feed is not accurate. Use  the service provided by e.g. DSM nutritional products. They are using a validated method based on sufficient extraction."

Kim Albert Perlado
Kim Albert Perlado

How would you check that the assumption you made in reducing the amount of mineral P based on the level of available phytate in your raw materials is accurate? Ultimately performance will do tell you that but can nir help again in the final feed? If feasible how would you deal with the enzyme content variability and recovery/activity efficacy in the calibration development?