Page 12 - Co Products Brochure

COMPOSITION,
NUTRITIVE VALUES,
AND FORMULATION
Protein and amino acids
All of the products described in this brochure are protein supplements under the
NRC classification.
In the ruminant, amino acids reaching the abomasum and small intestine are provided
by two radically different sources. The first source of amino acids is known as microbial
protein. This microbial protein (which has a constant amino acid composition) is
derived from the nitrogenous feed material
which is fermented in the rumen
[
RDP = Rumen Degradable Protein]. The second source is that protein in the
feed that bypasses the rumen (commonly referred to as “bypass protein”). The
amino acid composition of this bypass protein can have a measurable influence
on the performance of the animal.
For monogastrics (poultry and pigs), protein quality is a more complex consideration
in that amino acids must be present and biologically available in sufficient quantities and
in correct proportions to meet the animal’s requirements.
Gluten-60 is particularly valued for its high methionine content, which is an essential
amino acid that
many feed ingredients lack in useful concentrations.
Fats and fibre
The fat content of Tongaat Hulett Starch’s agri-products (except CSL) contributes to their
energy value as feedstuffs.
Moreover, the high degree of unsaturation of the fats should
enhance the utilization of saturated fats in other components of a feed.
The high proportion of linoleic acid (an essential fatty acid) that is a characteristic of
maize fat is of special importance in poultry feeds and pet food.
Fibre values affect the use of the feedstuff. Gluten-20 tends to be more useful for beef
and dairy cattle, pigs, and poultry layers, while the lower-fibre Gluten-60 is desirable for
high nutrient-density feeds for broilers and aqua-culture.
Vitamins
Gluten-60 is a good source of carotenoids, which have vitamin A activity. In addition, all
the agri-products described in this brochure can make important contributions of choline
and B-vitamins in all
monogastric formulations.