Poultry International - January 2018 - 37
PoultryInternational ❙ 37
materials is now possible - in turn helping to improve
enzyme application and poultry feed formulation.
With levels of the antinutrient phytate varying not
just between feedstuffs but within a single raw material, NIR gives nutritionists confidence that there is
sufficient substrate on which a phytase enzyme can act.
Where higher levels of phytate are detected, producers can use higher doses of phytases to increase
phosphate availability and reduce the antinutritive
effect of phytate more effectively. This allows producers to tap into opportunities for
incremental gain that may otherwise have not
have been realized.
Better and more rapid identification of
key antinutrients, ranging from mycotoxins
and nonstarch polysaccharides (NSPs) to
phytate, is set to play a key part in the future
of the poultry industry - and a good example of
this is the way in which companies have changed with
regard to applying feed enzymes such as phytase.
Growing understanding of phytase
While phytases were originally used to release
phosphorus, feed manufacturers are becoming much
more aware of the extra-phosphoric effects that can
be exploited by using products to target the complete
breakdown of the phytate level of the diet.
The process is being used to particular effect in the
ongoing effort to tackle woody breast. Research has demonstrated that high doses of phytase, combined with nutrients that support the antioxidant status of the animal, can
play a role in reducing the severity of the condition.
Within the enzyme sector as a whole, secondary effects will become of equal importance as the
primary effects - inositol release being one example.
Understanding that there are marked differences between products, and the way they attack the substrate,
is important, hence the need for evaluation.
Poultry nutrition has seen significant advances in
the past 50 years, with the introduction of ingredient
analysis, least cost formulation and the advent of a
multitude of additives including vitamins, amino acids,
antibiotics, coccidiostats and enzymes.
The next 10 years look set to bring further developments with changes in industry practices, increased
competition and mounting pressure from consumers.
Feed companies are expected to reduce their reliance on antibiotics while maintaining production efficiency, necessitating a greater degree of precision in
nutrient delivery with minimal antinutrient contamination.
Precision poultry nutrition shapes
Concurrently, the availability of raw
materials, with staple ingredients such as corn and soy
likely to be limited as a result of production pressures,
prohibition of GMOs, and climate change, will become
an increasing issue. Shortages may be a particularly
apparent in the Middle East, where water-intensive
crops tend to be imported from the U.S., Canada and
Europe, rather than grown locally.
With these changes in global markets, companies
are increasingly looking at ways that incremental gains
can be achieved to ensure a competitive edge and ongoing profitability.
As a result, companies are spending increasing
amounts of time and effort evaluating products, suppliers and different applications, with nutritionists and
scientists focused on identifying ways to make incremental improvements to feed.
Formulating diets to meet precise nutritional requirements means fewer resources are wasted, fewer
problems are created in the gut, and broilers can be fed
with fewer problems. While it is tempting to focus on
the next big thing to deliver a major step change, the
role of small initiatives to advance energy and nutrition
efficiency should not be underestimated. ■
Michael Bedford is the research director with AB Vista
January 2018 ❙ www.WATTAgNet.com