Feed Strategy - July 2019 - 21

FeedStrategy ❙ 21

mrberryphoto I AdobePhoto.com

animals, where their digestive system is immature and
they are coping with significant dietary changes.
By improving protein utilization, proteases can allow
the use of a low-protein diet, without seeing a drop in
performance. Improvements in weight gain and feed
conversion associated with the use of proteases are often
more than can be accounted for by improved amino acid
availability alone. It is believed that this relates to the role
proteases play in improving gut health and integrity.
The anti-nutritive effects of non-starch polysaccharides
and phytate on digestibility and the gut microflora are also
important. Phytase and carbohydrase additions should
be evaluated to ensure optimum nutrient availability and
minimum influence of anti-nutritive effects.

Reducing protein levels

Bacteria such as E. coli feed on undigested protein in
For better or worse
the gut and proliferate. Reducing crude protein levels in
While many producers are not happy with the ban on
weaning diets is one answer, as long as adequate amino
zinc, others see it as an opportunity. Recent studies,
acid availability is ensured, otherwise growth rate would
although confirming the beneficial effect of zinc oxide,
be reduced.
found that it increased gut
Considering nitrogen
inflammation. Researchers,
emissions and the impact of
in fact, think zinc oxide
Solution for zinc oxide replacement
soy, there are nutritional and
has a negative effect on the
is management, nutrition:
environmental reasons to
immune system. And it is
www.WATTAgNet.com/articles/34533
investigate ways of reducing
its function of limiting the
protein usage. Protein optidevelopment of a healthy and
mizers, highly digestible
diverse gut microflora that
protein sources and fermented protein products, have all
is another reason for its prohibition. Although diarrhea
been tested in piglet diets. In the case of the latter, an
will affect growth and days to slaughter, poor gut health
increase in lactobacilli populations were seen. The added
will affect performance and reduce pigs' ability to deal
benefit of reducing protein levels is that nitrogen excretion
with dietary and disease challenges.
is reduced.
It is clear that producers and nutritionists will have to
focus on management techniques and dietary solutions to
Digestibility
support the gut health of piglets at weaning. This is someThe use of enzymes to get more out of diets fed is stanthing they are already doing in light of the pressure to be
dard practice to improve the economics of production.
"antibiotic free." An overall dietary strategy is required to
However, improvements in gut health and optimization of
prevent the causes of diarrhea and, in so doing, promote
nutrient levels are also important, particularly in young
health and performance. ■
Zoe Kay is an independent consultant providing technical services to the animal health and nutrition industry. She
can be reached at cuckooconsulting@gmail.com.
July 2019 ❙ www.WATTAgNet.com


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Feed Strategy - July 2019

Table of Contents for the Digital Edition of Feed Strategy - July 2019

Feed Strategy - July 2019
Contents
In the Mix
Industry Happenings
Consumers invested in animal welfare, but knowledge is limited
Piglet welfare is compromised by feed regulations
Nutritional strategies for piglet diets without zinc oxide
Marketing nutrition through your own local offices
Retiring AFIA CEO Joel Newman’s advice for feed industry
Nutritional factors that influence milk quality, composition
Modern dairy cows deserve modern vitamin nutrition
The effect of feed particle size on pig health
SPACE to focus on many issues facing agriculture
The latest in bulk feed transportation equipment
Products
Advertisers’ Index
Feed Strategy - July 2019 - CT1
Feed Strategy - July 2019 - CT2
Feed Strategy - July 2019 - Feed Strategy - July 2019
Feed Strategy - July 2019 - Cover2
Feed Strategy - July 2019 - Contents
Feed Strategy - July 2019 - In the Mix
Feed Strategy - July 2019 - Industry Happenings
Feed Strategy - July 2019 - Consumers invested in animal welfare, but knowledge is limited
Feed Strategy - July 2019 - 5
Feed Strategy - July 2019 - 6
Feed Strategy - July 2019 - 7
Feed Strategy - July 2019 - Piglet welfare is compromised by feed regulations
Feed Strategy - July 2019 - 9
Feed Strategy - July 2019 - 10
Feed Strategy - July 2019 - 11
Feed Strategy - July 2019 - 12
Feed Strategy - July 2019 - 13
Feed Strategy - July 2019 - 14
Feed Strategy - July 2019 - 15
Feed Strategy - July 2019 - 16
Feed Strategy - July 2019 - 17
Feed Strategy - July 2019 - 18
Feed Strategy - July 2019 - Nutritional strategies for piglet diets without zinc oxide
Feed Strategy - July 2019 - 20
Feed Strategy - July 2019 - 21
Feed Strategy - July 2019 - Marketing nutrition through your own local offices
Feed Strategy - July 2019 - 23
Feed Strategy - July 2019 - Retiring AFIA CEO Joel Newman’s advice for feed industry
Feed Strategy - July 2019 - 25
Feed Strategy - July 2019 - 26
Feed Strategy - July 2019 - 27
Feed Strategy - July 2019 - Nutritional factors that influence milk quality, composition
Feed Strategy - July 2019 - 29
Feed Strategy - July 2019 - 30
Feed Strategy - July 2019 - 31
Feed Strategy - July 2019 - Modern dairy cows deserve modern vitamin nutrition
Feed Strategy - July 2019 - 33
Feed Strategy - July 2019 - 34
Feed Strategy - July 2019 - 35
Feed Strategy - July 2019 - The effect of feed particle size on pig health
Feed Strategy - July 2019 - 37
Feed Strategy - July 2019 - 38
Feed Strategy - July 2019 - 39
Feed Strategy - July 2019 - 40
Feed Strategy - July 2019 - SPACE to focus on many issues facing agriculture
Feed Strategy - July 2019 - The latest in bulk feed transportation equipment
Feed Strategy - July 2019 - Products
Feed Strategy - July 2019 - Advertisers’ Index
Feed Strategy - July 2019 - Cover3
Feed Strategy - July 2019 - Cover4
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