What is the
precise function of acidifying feed and adding probiotics? Experiments carried
out in suggest that, in experimental situations at least, these treatments control pathogenic bacteria first, and improve production
as a side-effect. Will it catch on in practice?
Blending
essential oils should be regarded as one of the tools available to animal
nutritionists in formulating diets for poultry. Further research is continuing
to develop our understanding of their real potential.
When environmental pollution becomes a restricting factor in
livestock nutrition, there is a danger of over-compensating. In poultry
production, this could have damaging effects on welfare. There is thus a need to re-assess phosphorus requirements in
practice.
What is the unique property of fishmeal
that makes it so useful in enhancing animal performance? Scientists in the UK have
uncovered some of the secrets of this unique high performance protein. Using
their research they have developed treatments for vegetable proteins to get the
best feed value out of plant proteins.
Maintaining optimal immune response in birds has become a major
challenge in modern poultry production. As nutrition is a major cost in animal
and poultry nutrition, maintaining optimal health via this
route is desirable. It is well known that antioxidants can enhance the immune
system. Combining this with the antioxidant and immunostimulant potential of
some plant extracts may increase the benefits.
Since the European ban of most traditional
antimicrobials and growth promoters in animal feed, many alternatives have been
discovered, tested and commercialised. Safe, innovative and powerful plant
extracts can fit perfectly into today's animal husbandry and will play
important roles in the sustainable husbandry practices of the future.
Making a combined
culture of bacterial species for use as a probiotic may improve animal
performance more than a single species alone. However, understanding of
inhibition and synergy is required to make an effective combination.
When all AGP's are
banned by the EU in 2006, many other countries are expected to follow. This
will take away one weapon from the feed formulators to fight microbial
imbalances in young animals. However, more strategies are being evaluated and
in this new light animal productivity should not be compromised. Acidifiers
will form a solid basis in these strategies.
The benefits of enzymes are most apparent when fed in poorly
digestible diets to birds facing a large microbial challenge. This usually
means that the poorer poultry producers are most likely to be the largest beneficiaries of enzyme use. Once again, a
clean university cage trial will not give a result representative of a
commercial broiler house.
Feeding
grains and forages contaminated with Fusarium mycotoxins results in harmful
metabolic changes that reduce production efficiency of broilers, pigs and other
species. Mycotoxin-binding substances are a popular choice for commercial
applications, as they prevent intestinal absorption of the
toxins. However, care must be taken to prevent binding of nutrients as well.