PREG
‐
ALERT
PRO
®
INSTRUCTION
MANUAL
Rev.
2
7/1/2007
Table
1:
Approximate
distances
to
near
and
far
points
of
the
uterus
for
various
animals
at
the
gestation
times
shown.
Distances
Days
Gestation
Pigs
&
Goats
2
‐
8
in
(50
‐
200mm)
28
‐
30
Cattle
4
‐
13.5
in
(100
‐
338mm)
25
‐
30
Alpacas
1.6
‐
6
in
(40
‐
150mm)
12
‐
25
Sheep
1.6
‐
6
in
(40
‐
150mm)
28
‐
30
Horses
4.7
‐
13.5in
(120
‐
338mm)
14
‐
18
Llamas
2
‐
6
in
(50
‐
150mm)
12
‐
30
Miniature
Horses
2
‐
8
in
(60
‐
200mm)
14
‐
18
Miniature
Cattle
4.7
‐
8
in
(120
‐
200mm)
25
‐
30
The
above
table
is
only
a
guide
the
purpose
of
which
is
to
give
the
user
some
feel
for
the
distances
involved.
In
use,
the
important
thing
to
look
for
is
a
strong
high
spike
or
group
of
spikes
in
the
area
of
interest
as
displayed
on
the
screen.
Pregnancy
can
be
determined
either
by
sensing
the
fetus
or
the
interface
between
the
amniotic
fluid
and
the
far
side
of
the
intrauterine
wall.
When
detecting
the
fetus(es),
one
looks
for
1
or
more
spikes
near
the
center
of
the
range.
When
looking
for
the
amniotic
fluid
interface
at
the
far
side
of
the
uterus,
one
looks
for
one
spike
at
the
far
end
of
range.
In
some
animals
(cows
and
mares)
the
uterine
wall
thickens
very
early
in
pregnancy
and
the
instrument
will
display
a
spike
from
the
near
uterine
wall
(left
end
of
the
bar)
in
those
cases.
©2007
Renco
Corporation
Page
5
of
13
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