Feed Strategy - July 2019 - 32

32 ❙ FeedStrategy

Modern dairy cows deserve
modern vitamin nutrition
Nutrition is an expensive but indispensable resource in animal
farming, and using the right levels of all vitamins is one of the ways to
ensure productivity and prevent wastage.
IOANNIS MAVROMICHALIS

I

n the old days, it was believed
that dairy cows that grazed all
day for fresh forage required
no further nutrients. That was
true: The bugs in the rumen
would produce enough nutrients,
including vitamins, to sustain
their host. Again, back then, this
was correct based on the level of
available knowledge, genetics and
methods of production.
Using this same concept today
ignores a very significant fact:
Modern dairy cows no longer live
only on green forage and they no
longer produce 10 liters of milk
per day. Modern dairy production
practices require a more intense
approach to daily nutrition for
animals that are often kept indoors
producing milk yields that can
reach 50 liters per day. Modern
ruminant nutritionists have done a
great job revisiting most nutrients
along this thinking, and now is high
time to focus on the part of vitamin
nutrition for modern dairy cows.
When it comes to determining
total vitamin requirements (total
= ingredients + supplementation),

It is a good idea to employ the services of a qualified nutritionist to
revisit the vitamin nutrition for your dairy enterprise. dolgachov | Bigstock.com
it has always been an uphill battle
for ruminant researchers. This is
why scientific bodies like the U.S.
National Research Council have
been reserved in establishing and
then revising such requirements
over the years. Instead, it is easier
to work with vitamin supplementation because it largely ignores
amounts supplied by natural
ingredients. This might not be
entirely correct, but it remains
convenient. Such allowances
differ greatly among authorities
and many are the result of years

of experience, based on different
conditions, and thus, they tend to
differ by region.

Fat-soluble vitamins
When it comes to vitamins A, D, E
and K, we actually consider (more
times than not) the amount of vitamins that actually exist in forage
and concentrated ingredients.
Fresh forage will contain higher
levels, whereas stored forage less.
The longer the storage period and
the worse the storage conditions,
the lower the levels will be. It is
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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