Is the RAU Animal Immobilizer safe on animals and can it be used on pregnant
The RAU Animal Immobilizer has been used on cows in all stages of
pregnancies for over 15 years now without any recordings of any
slips or any abnormalities. Research shows that the Rau Animal
has no negative effect on the animal's breathing, blood pressure,
feed intake or Cortisol (stress hormone) levels while in use or
How long can the device be applied to an animal without hurting the
animal or losing its effectiveness?
Consistent results have been obtained from veterinarians working on
the hooves of dairy cows. These procedures take approximately 30-40
minutes, and no animal has been hurt or shown any after effects. The
unit has been used for more than 1 hour while putting a lazy calf to
a cow. The Immobilizer has remained effective for the full duration.
Do all cattle respond the same way to the stimulator?
Each animal is different so the effect of the Immobilizer may be
slightly different, depending on the degree of contact with the
nerve, size of animal, breed, moisture content of the stool, as well
as the level of pulse applied. It is important to observe the
reaction of each animal and use that as a guide as opposed to
relying on a preset setting on the pulse generator. If the rectal
passage and stool is very dry, the animal might not respond
effectively to the pulse. A Small amount of lubricant may
be placed on the tip of the probe to improve the contact.
How difficult is it to immobilize the front part of a cow?
It is not difficult at all. As the probe is inserted deeper into the
animal, and a slightly higher pulse applied, the animal will extend
its head and may lift one of its hind legs. This indicates the front
is being immobilized and will afford greater control of the animal
and immobilization of the head. It is important to note that the
animal's breathing is not affected.
Do you need to restrain animals in a head gate or squeeze chute to use
No, you do not need to have the animal in a squeeze chute before you
can immobilize it. If a head gate or squeeze chute is available by
all means use them but there is no need to squeeze the animal at
When using the RAU Animal Immobilizer, it is best to have the animal
in a chute or small pen for the animal to lean on and for safety
reasons. When the animal is immobilized, it may lean to one side or
become unstable if one leg is raised off the ground.
When putting the animal in a squeeze chute with a head clamp, make
sure that the head clamp does not restrict blood flow to the head as
this may cause the animal to collapse.
Note that each animal is different, and the reaction of each animal
should be observed to ensure best results.
Always take adequate sensible precautions to prevent injury to the
animal and handlers when working with large animals
Where is the unit placed and how do you tell if it is correctly
The Immobilizer probe is placed in the animal's rectum. The depth of
insertion varies depending on the part of the animal to be
immobilized and the relative size of the animal. Approximately
halfway between the hooks and pins is the targeted area for the tip
- roughly under the Tailhead.
It is advisable to watch the animal's reaction for the desired
effect rather than relying on fixed settings or depth. One will get
to know the ideal setting through regular use. The on-line manual
may also give you an idea of the operation of the Immobilizer.
What does the RAU Animal Immobilizer use as a power source?
The RAU Animal Immobilizer has a 12 Volt, self-contained, sealed
lead-acid, rechargeable battery, capable of delivering 8 - 10 hours
of continuous use. The battery is easily charged using the 110V to
12v inverterÂą or the 12v car
chargerÂ˛ (both provided). Simply plug the
inverter into the wall outletÂą or the car
charger into your car or truck cigarette lighterÂ˛.
Can this be used for AI work?
Breakthrough research has shown the unit to be effective for
artificial insemination and embryo work. With the use of the RAU
MP2000 mini-probe (an additional accessory), the animal is
sufficiently immobilized to pass the straw of semen to successfully
inseminate the heifer or cow.
Simply insert the mini-probe along the back of the arm between the
glove and the rectal lining to hold the animal still.
Is there an ejaculator for semen collection from Sheep and Goats?
Semen collection from sheep and goat rams is possible with the
Immobilizer. The standard probe is adequate for use as an ejaculator
when pressed down on the prostate.
How widely used is this product and who uses it?
RAU Animal Immobilizers are used internationally in
the USA along with Canada, Mexico, Africa, South America, Central
America, Europe, Australia and New Zealand to mention some of the
Its users include Veterinarians, University Ag and livestock
departments, feedlots, cow-calf operations, small and large
ranchers, hoof specialists, AI workers and everyday cattle folk with
anything from a few head to thousands of head of cattle. Rodeo
cattle breeders, sheep and goat farmers, horse owners and Farriers.
Deer breeders along with owners of elk, buffalo, camels, donkeys,
mules, llamas, alpacas and camels have immobilized these animal
species in order to provide treatment and make working a safer
New uses are being discovered all the time.
How does it work?
The unit is powered by a low voltage current supplied by a 12v
rechargeable battery. A gentle electrical pulse is applied via the
rectal probe which is inserted into the rectum of the animal to be
treated. This pulse works with the animal's natural nervous system
to control the muscles. The depth of insertion is varied by means of
a flat rubber ring which slides up and down the shaft of the probe.
The tail rests against the flat ring to help hold the probe in
place. The pulsed signal is introduced by switching on the unit and
turning up the signal strength with the control knob on the pulse
generator unit. As the signal is increased the animal will be
immobilized more and more until the entire animal from tail to head
is under the operatorâ€™s control. Only the â€śvoluntaryâ€ť muscles are
affected i.e. the ones it uses to flee or fight you. â€śInvoluntaryâ€ť
functions such as heart and lungs are not affected.
Immobilization is immediate when the pulse is applied. Likewise the
animal will return to normal immediately the pulse is switched off
or the probe is removed.
How robust is the product?
This product is engineered for the tough working conditions
associated with large animal work. The electronics are sealed and
encased in a steel protective shell, which in turn, is encased in
the steel casing of the pulse generator.
The unit is weatherproof and if it gets wet simply allow it to dry
and it will carry on working. The probe is made of aluminum and the
cable is heavy duty. The battery is protected inside the steel
casing. Access for battery changes is simple and quick. The entire
unit is supplied in a tough carry case, which accommodates all the
components and makes it easy to transport.
Maintenance is minimal and involves keeping the probe clean and free
of acids from the animal's bodily fluids and keeping the battery
charged at regular intervals. Wipe down the control box and probe
with a damp cloth after use to keep it clean.