Treating
and managing mastitis in heifers is real pain - especially when you face a large
number of cases. To avoid being overwhelmed with mastitis at calving, it pays to
put energy into preventing cases, by preparing in the weeks leading up to
calving.
Actions
that reduce the number of bacteria near the teat end and improve teat health
will minimise the risk of new mastitis infections occurring. Here are some
hints:

Provide a super-clean calving area:
give your heifers the best of your calving areas
In
seasonal herds, it is often a complex juggle of resources when allocating the
areas for calving. Batches of animals may have different paddocks or
periods on a pad depending on the weather (rain) and number of cows calving in
any few days. Give the heifers the best areas available. They spend longer
calving and are more frequently on the ground than mature cows, so their udders
are more likely to be soiled with faeces and have bacteria contacting the teat
skin.
The
Countdown guidelines say “clean and dry” with less than 2 pats of cow dung
per square metre. If there is more cow manure than this, the area is too
dirty to calve heifers.
You
can calve heifers on grass without worrying about milk fever, so give them that
luxury. If this is a separate area from the cows, they won’t be bullied as
much when they choose their calving spots.
Disinfect and soft teat skin by teat
spraying
If
you are lead feeding or training heifers through the shed before calving,
consider also spraying teats with teat disinfectant and emollient. Use your
regular teat disinfectant made up with 10% glycerine in the final mix. Teat
spraying the heifers before calving reduces the population of bacteria on the
teat skin and helps soften it in the days leading up to first milking.
Act on swollen udders or dripping milk
Fluid
swelling in the udder (oedema or ‘flag’) reduces teat tissue health.
Dripping milk indicates that teat ends no longer have the seal which protects
against bacteria entering.
Get
all heifers with udder oedema or milk leakage into the shed and milked out
completely as soon as possible. Some may require prostaglandin induction in the
last few days of pregnancy. Some may also need treatment for oedema for a few
days after calving. Talk to your veterinarian about the treatment options.
Image and caption:
A well
presented heifer – ready for a promising milking career
Countdown Farm Guideline or
Technote
Farm
Guideline 1.1, 1.2, 5.1, 5.2, 5.3, 5.4
Keywords
freshly calved heifers, calving area, teat end
health, udder oedema
Word length
401