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mineral being fed, these high levels of supplementation
could be more negative than positive for the animal.
Trace minerals support the cow's immune system,
supporting the immune response during times of stress
and, thereby, improving cow performance. On many
farms throughout the country, inorganic trace minerals
-- such as sodium selenite and copper sulphate -- are
included in mineral packs and feeds. However, this form
of mineral supplementation is not what the animal is
designed to use and absorb. As a result, much of this is
wasted through excretion.
The soil contains inorganic minerals, which are taken up
by the plant (grass) and converted to an organic form
that the cow can use and store. The animal then eats
the plant containing the organic form of the mineral,
allowing the animal to store and build up a reserve of the
mineral for use in times of stress (e.g., calving).
Research has proven that feeding trace minerals in an
organic form, such as Alltech's Bioplex® Copper or Zinc
and Sel-Plex® (selenium), have greater bio-availability
and show improved results compared to inorganic
forms.
Bioplex minerals are chelated, meaning they are
protected from interactions with other minerals.
They are also more stable through the digestive tract
than their inorganic counterparts, meaning that the
animal actually uses what it consumes. Using proven
technologies in a volatile environment has been shown
to generate a greater return on investment. Many
farmers across the country are experiencing a positive
response by using organic minerals in the form of
Bioplex and Sel-Plex in their dry cow mineral.
The iodine issue in Ireland
Recently, we have seen issues with high levels of
iodine in milk samples. This is due to the high levels of
supplementation seen in herds across Ireland. Trial work
has shown that selenium from Sel-Plex drives the iodine-
containing thyroid hormone T4 from its active form, T3.
Forage analyses collected from across the country show
that Irish soils are deficient in selenium, which affects
the levels of this active thyroid hormone. Optimising the
selenium status by feeding an organic form of selenium
(Sel-Plex) reduces the need for excessive levels of iodine,
thus reducing the level of iodine in the milk.
As we look ahead, more consequences of feeding
excessive levels of inorganic trace minerals are likely
to become evident. To promote better health and
performance of the cow and its offspring, it is imperative
that we feed minerals in a form as close to nature as
possible. Forage mineral analysis is critical for accurate
mineral supplementation and the overall health and
performance of our modern dairy cows. Analyse your
forages for nutrients and minerals and get your minerals
balanced to avoid issues and antagonists, which may lock
up essential elements in minerals.
OCTOBER 2018
www.irishfarmersmonthly.com
Herd Health Focus
Ready, steady,
grow
The first three months of a calf's life are crucial; they help determine its future
health, growth and productivity. Calf milk replacers, used properly, will support
fast healthy growth, and reduce the risk of disease transfer.
Our Feed For Growth programme is designed to help you make the most of
this critical period.
Volac calf milk replacers ­
because proper growth calls for proper feeding.
Experts in young animal nutrition
For trouble-free rearing Lo Call: 00800 86522522 Land line: 00 353 49 433 4755
www.feedforgrowth.com
Ready, steady,
grow
The first three months of a calf's life are crucial; they help determine its future
health, growth and productivity. Calf milk replacers, used properly, will support
fast healthy growth, and reduce the risk of disease transfer.
Our Feed For Growth programme is designed to help you make the most of
this critical period.
Volac calf milk replacers ­
because proper growth calls for proper feeding.
Experts in young animal nutrition
For trouble-free rearing Lo Call: 00800 86522522 Land line: 00 353 49 433 4755
www.feedforgrowth.com
Ready, steady,
grow
The first three months of a calf's life are crucial; they help determine its future
health, growth and productivity. Calf milk replacers, used properly, will support
fast healthy growth, and reduce the risk of disease transfer.
Our Feed For Growth programme is designed to help you make the most of
this critical period.
Volac calf milk replacers ­
because proper growth calls for proper feeding.
Experts in young animal nutrition
For trouble-free rearing Lo Call: 00800 86522522 Land line: 00 353 49 433 4755
www.feedforgrowth.com
Ready, steady,
grow
The first three months of a calf's life are crucial; they help determine its future
health, growth and productivity. Calf milk replacers, used properly, will support
fast healthy growth, and reduce the risk of disease transfer.
Our Feed For Growth programme is designed to help you make the most of
this critical period.
Volac calf milk replacers ­
because proper growth calls for proper feeding.
Experts in young animal nutrition
For trouble-free rearing Lo Call: 00800 86522522 Land line: 00 353 49 433 4755
www.feedforgrowth.com
Ready, steady,
grow
The first three months of a calf's life are crucial; they help determine its future
health, growth and productivity. Calf milk replacers, used properly, will support
fast healthy growth, and reduce the risk of disease transfer.
Our Feed For Growth programme is designed to help you make the most of
this critical period.
Volac calf milk replacers ­
because proper growth calls for proper feeding.
Experts in young animal nutrition
For trouble-free rearing Lo Call: 00800 86522522 Land line: 00 353 49 433 4755
www.feedforgrowth.com
To date, many of this
year's silage analyses
show a deficiency
in phosphorus and
an excess supply of
potassium, due to a
high level of soluble
nitrogen caused by
high fertiliser and
slurry application rates.