The Suffolk Wildlife Trust native Hebridean sheep that
aftermath graze the meadows are very hardy and able to get a balanced diet from
browsing a wide range of plants. This includes grazing on woody material, so
they do a great job trimming up along the hedge and fence lines, preventing
scrub encroaching into the grassland.
The diversity of the herb-rich meadows really helps to
provide the sheep with their ‘five a day’ and a good range of essential
nutrients and trace elements.
However, the availability of nutrients and trace elements can
also be affected by the local geology and soils. For example, in Suffolk, some
of our soils are naturally deficient in Selenium. In sheep, lack of this
element can cause poor growth and white muscle disease. So to counteract such deficiencies we provide the sheep
with mineral blocks (salt licks) to ensure their nutritional needs are met.
It is always
interesting to observe that, on the herb-rich meadows with surrounding native
hedges, the mineral blocks don’t seem to be very quickly used – which may
demonstrate the value of the diversity for providing a well-balanced diet for
livestock - Another string in the herb-rich meadow’s bow and reason why they
are important!
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