Perspectives - Winter 2016 - 38

KEEPING AHEAD OF WINTER DYSENTERY

T

by Lisa R. Tager, Ph. D., Dairy Nutritional Technical Specialist, MarSyt, Inc.

he winter chill is finally here in the
northeastern U.S. and it is time for
producers to keep an eye out for winter
dysentery in their herds. From now until
spring, we'll all be doing our best to make
sure that the herds we work with don't fall
prey to an outbreak of this menacing disease.
Winter dysentery is characterized by a sudden
onset of diarrhea that can be green to black
in color and may contain fresh blood. Many
cows don't drop in DMI when they are about
to break with dysentery, so we often don't
know there is a problem until the symptoms
of diarrhea, dehydration, and sometimes
respiratory issues, present themselves.
While winter dysentery is often not fatal,
it does cause high morbidity in herds with
anywhere between 5-30% loss in milk
production. With therapeutic treatments, cows
recover in one or two weeks. However, by
then, the losses in milk are substantial and
most cows will not recover back to normal
yields during the current lactation. This makes
winter dysentery one of the most financially
troubling diseases that a dairyman can be
faced with in the winter. The good news is
that with a little diligence and awareness,
the producer can play a big role in keeping
winter dysentery from affecting their herd this
season.
Researchers are still not 100% sure what
causes winter dysentery, but much of the
recent research points to Coronavirus as the
main culprit. Unfortunately, herds struggling
with Bovine Viral Diarrhea Virus (BVDV),
Coccidiosis, Salmonella, and even E. coli can
also display symptoms very similar to those
caused by viral dysentery, particularly in
the cold and stressful winter months. Often,
these pathogens weaken the animal's immune
system, opening them up to an outbreak of
Coronavirus. Therefore, producers should
consider any of these pathogens as a possible
threat to production in herds and take
necessary steps to avoid an outbreak.
A little bit of good management can go
a long way in preventing dysentery this
winter. There is an experimental Coronavirus
vaccine, but it is not proven 100% effective
yet, so your best bet will be to practice good
hygiene and management through the cold
months. Keeping feed and water troughs,
stalls, your parlor, and your employees clean

38

Perspectives Magazine

and disinfected is the best way to avoid an
outbreak of dysentery. Fecal contamination
of feed and water is the number one cause
of outbreaks on a farm. Also, it is important
that any animal coming to your facility be
quarantined and certified tested.
Unfortunately, sometimes even the best
management cannot keep winter dysentery
at bay. Therefore, it is also a good idea to
consider nutritional options for avoiding or
treating winter dysentery. Feed ingredients,
such as Hilyses hydrolyzed yeast, which
contain a full dosage of yeast culture, mannan
oligosaccharides (MOS), free mannose sugar,
and beta-glucans, are an important addition
to the dairy cow diet for protecting against
winter dysentery. Aside from the yeast culture,
which keeps the rumen healthy during times

"Remember, good
management and hygiene
on your farm will be the
best way to avoid winter
dysentery..."
of stress, the presence of MOS in Hilyses
acts as a prebiotic and helps maintain and
balance healthy hind-gut microbes while free
mannose helps to bind bacterial pathogens
like Salmonella and E. coli. The beta-glucans
provided by Hilyses not only help lower the
effects of any mycotoxin challenges present in

phoenixfeeds.net/magazine

the gut, but also help to stimulate the immune
system in order to fight off winter dysentery
before it starts.
Hilyses can also work as a treatment
for winter dysentery at a double dosage,
particularly if the symptoms are being caused
by Salmonella or E. coli. Even if your winter
dysentery is viral, the full dosage of yeast
culture for rumen health, immune stimulation,
and gut microbe effects of Hilyses will help
your herd get through the outbreak and on the
mend quickly. Most importantly, because of
Hilyses' unique manufacturing process, we
have verified that it has a higher amount of
MOS, mannose, and beta-glucans than most
other products on the market, so you can be
sure that it will provide you with the best
preventative or treatment for winter dysentery
in your herd. Hilyses is also certified organic
(certificates available upon request), making it
a great option for producers who need a natural
solution for winter dysentery symptoms.
Remember, good management and hygiene
on your farm will be the best way to avoid
winter dysentery this season. However, even
the best producers sometimes cannot keep
winter dysentery away when temperatures get
cold and animals become stressed. Adding
"nutritional insurance" to your diet, such as
Hilyses hydrolyzed yeast, will keep your
cows protected and producing through the
winter months.


http://www.phoenixfeeds.net/magazine

Perspectives - Winter 2016

Table of Contents for the Digital Edition of Perspectives - Winter 2016

Contents
Perspectives - Winter 2016 - Cover1
Perspectives - Winter 2016 - Cover2
Perspectives - Winter 2016 - Contents
Perspectives - Winter 2016 - 4
Perspectives - Winter 2016 - 5
Perspectives - Winter 2016 - 6
Perspectives - Winter 2016 - 7
Perspectives - Winter 2016 - 8
Perspectives - Winter 2016 - 9
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Perspectives - Winter 2016 - Cover3
Perspectives - Winter 2016 - Cover4
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https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2018summer
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2018spring
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2018winter
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2017fall
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2017summer
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2017spring
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2017winter
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2016fall
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2016summer
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2016spring
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2016winter
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2015fall
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2015summer
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2015spring
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2015winter
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2014fall
https://www.nxtbook.com/nxtbooks/retromotion/perspectives_2014summer
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