Feed Strategy - November 2019 - 13

FeedStrategy ❙ 13

researchers believe a potential causal link points to
climate change.

Climate change's contribution
The fungi that produce mycotoxins generally follow
two key conditions: heat and humidity.
BIOMIN's mycotoxin "heat map," for example,
typically forms a bullseye around the Great Lakes
region in the U.S., with mycotoxin concentrations
decreasing as samples are collected farther west
and north. Rising temperatures and increased
flooding in areas where these are not historical
norms have increased the range of some
common mycotoxins, including aflatoxin.
However, heat and moisture aren't the only
factors that can contribute to the production
of mycotoxins. Some toxins, for example, are
produced when plants and fungi are under
stress - conditions that can also be triggered by
drought or sudden temperature swings.
Spikes in mycotoxins during droughts,
Murugesan said, mirror those that occur during floods.

Rise in less-common mycotoxins

Climate
change
is driving a
spike in mycotoxin
contamination; the cumulative
effects of multiple mycotoxins are taking a
toll on animal health. KOOKLE | Shutterstock.com
in grains in recent years, though the pattern isn't steady,
Murugesan said. Counts will increase one year, fall the
next and increase again, but a gradual trend is present:
"The thing is, when it goes down and then goes up, it
goes higher," he said, setting new precedents.
Due to limited data, it's difficult to say just how
long this trend has existed, but Murugesan and other
November 2019 ❙ www.FeedStrategy.com

The range of less-common mycotoxins has expanded
alongside their better-known counterparts, and new mycotoxins are also emerging, though it is difficult to tease out
how common these newly discovered toxins were in the
past when scientists were unable to detect them.
"We're learning new things about these compounds
and their effects on animals every day it seems, every
week," said Natacha Hogan, an associate professor
in the Department of Animal and Poultry Science at
the University of Saskatchewan. "With new analytical
technology, we're able to uncover and measure mycotoxins that we couldn't a month or a year ago."
Emerging research has changed the way scientists think about certain mycotoxins. Fumonisins, for
example, were not considered much of a threat because
pigs and especially poultry absorb so little of the toxins.
"That was what we always thought," said
Todd Applegate, a professor in the University of
Georgia's Department of Poultry Science. "Because


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Feed Strategy - November 2019

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

Feed Strategy - November 2019
Contents
In the Mix
FeedStrategy.com
Climate change and animal feed: mycotoxin risk mitigation
How to adapt to the changing mycotoxin landscape
Scientists seek new ways to combat spread of mycotoxins
Feed additives that will succeed in 2020 and beyond
Marketing nutrition by extending credit
More feed, fewer mills: feed industry consolidation
How to target protein content in late-lactation cow diets
Critical junctures in early chick nutrition confi rmed
How pelleting influences particle size in animal feed
Products
Advertisers’ Index
Feed Strategy - November 2019 - CT1
Feed Strategy - November 2019 - CT2
Feed Strategy - November 2019 - Feed Strategy - November 2019
Feed Strategy - November 2019 - Cover2
Feed Strategy - November 2019 - CT3
Feed Strategy - November 2019 - CT4
Feed Strategy - November 2019 - Contents
Feed Strategy - November 2019 - In the Mix
Feed Strategy - November 2019 - FeedStrategy.com
Feed Strategy - November 2019 - Climate change and animal feed: mycotoxin risk mitigation
Feed Strategy - November 2019 - 5
Feed Strategy - November 2019 - 6
Feed Strategy - November 2019 - 7
Feed Strategy - November 2019 - How to adapt to the changing mycotoxin landscape
Feed Strategy - November 2019 - 9
Feed Strategy - November 2019 - 10
Feed Strategy - November 2019 - 11
Feed Strategy - November 2019 - Scientists seek new ways to combat spread of mycotoxins
Feed Strategy - November 2019 - 13
Feed Strategy - November 2019 - 14
Feed Strategy - November 2019 - 15
Feed Strategy - November 2019 - Feed additives that will succeed in 2020 and beyond
Feed Strategy - November 2019 - 17
Feed Strategy - November 2019 - 18
Feed Strategy - November 2019 - 19
Feed Strategy - November 2019 - 20
Feed Strategy - November 2019 - 21
Feed Strategy - November 2019 - Marketing nutrition by extending credit
Feed Strategy - November 2019 - 23
Feed Strategy - November 2019 - More feed, fewer mills: feed industry consolidation
Feed Strategy - November 2019 - 25
Feed Strategy - November 2019 - 26
Feed Strategy - November 2019 - 27
Feed Strategy - November 2019 - How to target protein content in late-lactation cow diets
Feed Strategy - November 2019 - 29
Feed Strategy - November 2019 - 30
Feed Strategy - November 2019 - Critical junctures in early chick nutrition confi rmed
Feed Strategy - November 2019 - 32
Feed Strategy - November 2019 - 33
Feed Strategy - November 2019 - How pelleting influences particle size in animal feed
Feed Strategy - November 2019 - 35
Feed Strategy - November 2019 - 36
Feed Strategy - November 2019 - 37
Feed Strategy - November 2019 - 38
Feed Strategy - November 2019 - Products
Feed Strategy - November 2019 - Advertisers’ Index
Feed Strategy - November 2019 - Cover3
Feed Strategy - November 2019 - Cover4
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