Botanical-based
supplements can be used as part of an AGP-free feeding strategy or to improve
animal performance in pigs and poultry at all stages of production. Less
well known is that they can also be used effectively in milk replacers for
pre-ruminants (eg calves) to prevent scours.
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.
At the
Dutch Animal Research Centre in Lelystad an investigation on the benefits of
plant extracts in animal diets was set up in 1998, triggered by the expected
ban on antibiotic growth promoters. Some interesting results were found by the
research team of Carola van der Peet-Schwering.
Previously, Feed Mix has explored the
proposed mode of action of a group of powerful antioxidants found in citrus and
other fruits. As we get to know the bioflavonoids better, the potential
applications in animal nutrition, specifically meat production, are becoming
more widespread.
Heat stress and age are common causes of
reduced egg shell quality and incur large economic losses in the Indian poultry
industry. A number of plants are known to contain high levels of metabolically
active vitamin D3. Studies have shown that under adverse conditions, these can
be useful in reducing the egg shell quality problems associated with age.
Growth promoting antibiotics improve
average daily gain in broilers and pigs thanks to a combination of better feed
conversion and enhanced voluntary feed intake. With a total ban in the EU from
January 2006 and dwindling public acceptance elsewhere, there is a need for
safe feed additives that stimulate appetite and maintain animal productivity
and health.
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.
Many
studies have been made on feeding supplements that contain plant extracts.
Although their application in pig diets is an area of rapid development,
research at the University
of Leeds is being done to
find the effects of some supplements on pre-weaning growth.
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.