Feed Strategy - September 2019 - 18

18 ❙ FeedStrategy
BIOSECURITY MEASURES

Europe, US better structured to handle
ASF than China: www.WATTAgNet.com/
articles/38487

Traditional methods haven't
worked
"The traditional methods of making
vaccines have not been successful with ASF," Netherton
says. Inactivated virus vaccines are not effective and
attenuated strains of ASF protect against related virulent strains of the virus but there are side effects in pigs,
including a chronic form of the disease, he explains.
The Pirbright Institute is therefore focused on two
approaches to developing an ASF vaccine: either generating
a modified live virus by targeted gene deletion or generating
a subunit vaccine where pigs are immunized with a number
of ASF virus genes that can induce a protective response.
In the first instance, the team has already identified a
number of genes that can attenuate the genotype I viruses
present in Western Africa and Sardinia and are now
exploring whether these can be used for other strains,
particularly those circulating Europe and Asia, he says.

The second strategy is "potentially more complicated"
due to the size of the virus, he says, but it avoids safety
concerns associated with a live attenuated strain. The
team has already carried out successful screens to identify
genes that could induce an immune response.
In the meantime, Netherton says maintaining a "reliable and biosecure feedstuff supply chain" will be crucial
as, in the absence of close contact with wild boar, the
"most likely route" for the disease to get onto farms is
through ingestion of contaminated pork or pork products.
Research and work in the field of the gut microbiome will
also be important, he adds. "As we approach the development
of an effective ASF vaccine, then the effect of feed and nutrition on the microbiome and hence vaccine-induced immune
responses is likely to be an active area of research."

research and science
dedicated to animals well-being
and performance

Continuously innovating feed additives
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www.WATTAgNet.com ❙ September 2019


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Feed Strategy - September 2019

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

Feed Strategy - September 2019
Contents
In the Mix
Industry Happenings
Top Feed Companies: 102 companies rise to the top in 2018 Report highlights global compound animal feed manufacturers producing volumes over 1 million metric tons in 2018.
5 regulatory considerations for EU feed manufacturers
EU aligns biosecurity measures to contain ASF
Marketing nutrition through your own newsletter
How do the nutritional values of wheat compare to corn?
7 ways to prevent acidosis, bloating in dairy cows
Broiler feed form, particle size assists performance
Products
Advertisers’ Index
Feed Strategy - September 2019 - Feed Strategy - September 2019
Feed Strategy - September 2019 - CT2
Feed Strategy - September 2019 - Cover1
Feed Strategy - September 2019 - Cover2
Feed Strategy - September 2019 - Contents
Feed Strategy - September 2019 - In the Mix
Feed Strategy - September 2019 - Industry Happenings
Feed Strategy - September 2019 - Top Feed Companies: 102 companies rise to the top in 2018 Report highlights global compound animal feed manufacturers producing volumes over 1 million metric tons in 2018.
Feed Strategy - September 2019 - 5 regulatory considerations for EU feed manufacturers
Feed Strategy - September 2019 - 6
Feed Strategy - September 2019 - 7
Feed Strategy - September 2019 - 8
Feed Strategy - September 2019 - 9
Feed Strategy - September 2019 - 10
Feed Strategy - September 2019 - 11
Feed Strategy - September 2019 - 12
Feed Strategy - September 2019 - 13
Feed Strategy - September 2019 - EU aligns biosecurity measures to contain ASF
Feed Strategy - September 2019 - 15
Feed Strategy - September 2019 - 16
Feed Strategy - September 2019 - 17
Feed Strategy - September 2019 - 18
Feed Strategy - September 2019 - 19
Feed Strategy - September 2019 - 20
Feed Strategy - September 2019 - 21
Feed Strategy - September 2019 - 22
Feed Strategy - September 2019 - 23
Feed Strategy - September 2019 - 24
Feed Strategy - September 2019 - 25
Feed Strategy - September 2019 - Marketing nutrition through your own newsletter
Feed Strategy - September 2019 - 27
Feed Strategy - September 2019 - How do the nutritional values of wheat compare to corn?
Feed Strategy - September 2019 - 29
Feed Strategy - September 2019 - 30
Feed Strategy - September 2019 - 31
Feed Strategy - September 2019 - 7 ways to prevent acidosis, bloating in dairy cows
Feed Strategy - September 2019 - 33
Feed Strategy - September 2019 - 34
Feed Strategy - September 2019 - 35
Feed Strategy - September 2019 - Broiler feed form, particle size assists performance
Feed Strategy - September 2019 - 37
Feed Strategy - September 2019 - 38
Feed Strategy - September 2019 - 39
Feed Strategy - September 2019 - 40
Feed Strategy - September 2019 - 41
Feed Strategy - September 2019 - Products
Feed Strategy - September 2019 - Advertisers’ Index
Feed Strategy - September 2019 - 44
Feed Strategy - September 2019 - Cover3
Feed Strategy - September 2019 - Cover4
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