Delivering low doses of biologically active ingredients in the right
place at the right time takes an expert knowledge of process chemistry.
Sarah Mellor visited Soda Feed Ingredients' production plant in Italy,
where delivery systems are custom made to get the best out of the
products.
The term bypass has become widely used to describe treatments which
allow nutrients, especially proteins, to pass largely unchanged through
the rumen for digestion in the omasum or abomasum.
The outcome is not yet clear, but this plant will be ready when the market
asks for tailor-made products. Multi-flexibility is the key word for Jan Janssen
of Dutch feed compounder SaWeCo and initiator of a unique cooperation between
feed mill equipment manufacturers.
Originally intended for the application of
fat and other macro liquids to the surface of pellets, there has been a trend
for the application of micro-ingredients to pellets using Post-Pellet Liquid
Application technology. Jared Froetschner and Nelson Ward of DSM Nutritional
Products in this article look at some of the key issues regarding the use of
PPLA systems to deliver micro-ingredients in animal feed manufacturing.
Adding
micro-ingredients to animal feed demands the highest possible degree of
precision in order to obtain the right effect in each ration. Adding too many
micro-ingredients wastes valuable additives while adding too few
micro-ingredients or not utilising them effectively will not have the required
results. Ingrid van der Sterren explains how a vacuum coater fits into this
process.
Sometimes it is difficult to get liquid
products into the feed before or during pelleting because of their sensitivity
to high temperatures or their negative impact on the pelleting process. In this
fourth article in the Feed Tech series on feed processing, feed technology
specialist Jared Froetschner addresses the complicated subject of
post-pelleting liquid application (PPLA) under US conditions.
The most simple and effective way to mix
enzymes in feed is in the dry form, but high processing temperatures are
detrimental to the effectiveness of these catalysts. The opportunity to
continue using a dry application approach is significantly increased by
selecting granular product forms that have been specifically designed to
withstand higher processing conditions.
In food
processing many sophisticated technologies are used to add micro-ingredients to
the basic foodstuffs. Why not apply these techniques to the feed industry as
well, since there are many similarities with food processing. Electrostatic
coating is one of the methods that could be used to coast products for animal
consumption.
Cutting-edge "Thermo Protection Technology" which protects phytase from the
adverse effects of high temperatures during feed conditioning and pelleting
represents an exciting step forward for the feed industry, scientists from
Danisco Animal Nutrition told delegates to the 2007 International Poultry
Scientific Forum in Atlanta, Georgia.
Three major developments can be distinguished when discussing developments in
animal feed manufacturing during the past decade: innovation and cost control,
consumers playing a leading role and safety beyond all doubt. In this article,
especially written for the 10 year anniversary of Feed Tech, Harm Klein of
Tebodin CCE elaborates on these events and how they have affected compound feed
manufacturing.