Feed Strategy - February 2018 - 29
FeedStrategy ❙ 29
testinal inflammation, but in pigs
suffering with severe diarrhea,
elimination of such ingredients is
strongly recommended. Selecting
the right source of soybean proteins remains crucial in modern
piglet feed design.
■ Increased dietary bulkiness.
Moderate levels of functional
fiber enhance movement of digesta through the gastrointestinal
system, increase digesta water retention and facilitate defecation.
Addition of fiber in nursery diets
is believed to increase excretion
of pathogenic microorganisms,
prevent attachment of bacteria to
the enteric epithelium and establish a healthy gut. Rolled oats,
sugar beet pulp, alfalfa meal,
wood fiber and wheat bran are
some of the most common sources of fiber being used today.
■ Feed quality issues. Ensuring
that feedborne pathogens do not
reach young pigs is a sound way
of preventing unnecessary cases
of diarrhea. To this end, ingredient selection is of paramount
importance, as is a rigid quality
assurance program. Finished
complete feeds are often heattreated to reduce bacterial load.
For example, in Denmark, there
is a requirement for all piglet
pelleted feeds to be heated to
at least 83 C. Recent evidence
also suggests that a coarse feed
texture and meal form is more
protective against proliferation of
Escherichia coli and Salmonella
February 2018 ❙ www.WATTAgNet.com
compared with finely ground or
pelleted diets, although this is
highly contestable among nutritionists and veterinarians. ■
Ioannis Mavromichalis, Ph.D., is an
animal nutrition industry consultant.
To contact Mavromichalis, email