Feed Strategy - July 2019 - 20

20 ❙ FeedStrategy
NUTRITIONAL STRATEGIES
Zinc oxide is also understood to contribute to the
developments of resistance to antibiotics, another challenge with which it is coupled. Antibiotics would be an
alternative approach to treating diarrhea but, as their use
is limited, alternative solutions need to be found.

nutrients and are involved in the repair of damaged
cells. Their dietary inclusion, along with medium
chain fatty acids, has been shown to inhibit the
growth of pathogenic bacteria. SCFAs have positive effects on the immune system as well as antiinflammatory actions.

A diverse and balanced microbiome means beneficial bacteria
will outcompete disease-causing organisms. And as a result,
gut health is improved and incidences of diarrhea are less
likely. Animals are also more likely to be able to overcome
disease challenges and growth will be at an optimal level.
Zinc oxide is known to prevent diarrhea, but it may not
have an entirely positive impact on the gut flora. A significant reduction in the number of lactic acid bacteria has been
found when piglets were fed high levels of zinc oxide. And
this is thought to be why diarrhea occurs when the additive
is removed from the diet. The piglet's gut flora is not able to
defend itself against the proliferation of pathogenic species.
So, instead of suppressing a piglet's gut flora, would it
not be better to support a diverse and balanced microbiome?
Probiotics are able to do just that by either introducing lactic
acid-producing species or other beneficial microorganisms
that help to create a positive gut environment. Improvements
in the piglet gut microbiome are seen - more lactic acidproducing bacteria and less pathogenic species are present.

Immune support
By supporting the gut microbiome, the immune system is
also supported, and piglet performance is optimized. This
means probiotics will help piglets fight microbial challenges,
deal with dietary changes and overcome weaning stress -
all of which can result in diarrhea. Intestinal barrier function
and inflammatory responses can also be influenced by the
use of probiotics, helping to prevent gastric upset.
Other immune-supportive additives include antioxidants,
plant extracts and essential oils. These have several effects
including reducing the negative effects of stress on the
immune system and supporting gut health. Short-chain fatty
acids (SCFAs) are the preferred energy source of gut epithelial cells. They promote villi growth, improve absorption of

Alejo Miranda | Shutterstock.com

Microbiome diversity

Acidification
The supplementation of organic acids at the right high
doses in animal feed can increase body weight, improve
feed conversion ratio and reduce colonization of pathogens in the intestine, more specifically:
■ Decrease the pH value and the buffering capacity of the
feed - as well as antibacterial and antifungal effects
■ Reduce pH value by release of hydrogen ions in the
stomach, thereby activating pepsinogen to form pepsin
and improving protein digestibility
■ Inhibit gram-negative indigenous microflora in the
gastrointestinal tract
Organic acid products are also available for dosing
into water. This improves the quality of the water by
preventing microbial growth but also improves gut health
once ingested. So, in terms of preventing diarrhea, acidification of feed or water could help piglets cope with bacterial challenges as well as dietary changes.
www.WATTAgNet.com ❙ July 2019


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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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