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Pre~SeedEQ ~ Veterinarian Overview
Clinically proven
in independent studies to not
harm sperm from the time of
collection, through 48 hours of
cold storage.
Based
on the same patented,
isotonic formula as the only
lubricant indicated by FDA
for use during human
fertility procedures.
With
the plant polysaccharide
arabinogalactan, for
antioxidant support.
Pre~Seed
EQ is
uniquely formulated to provide
lubrication, while optimizing
sperm function:
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The ONLY lubricant to not
decrease stallion sperm
motility during either fresh
or cold storage in
independent studies.
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Does not interfere with the
ability of sperm to
fertilize eggs, or support
subsequent embryo
development, even after
exposure to high
concentrations of 50% (v/v).
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Developed by a DVM, PhD,
Theriogenologist with over
15 years of federal funding
in sperm physiology.
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Does not cause mucous
membrane irritation, as does
KY Jelly®,
making it a better
choice for sensitive
mares and stallions, or
for any medical
procedure requiring
mucosal lubrication.
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An excellent sheath cleaner,
with a little going a long
way, and no rinsing
required.
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Isotonic, non-irritating
formula makes it excellent
for wound cleaning and
dressing. |
How Do Other Lubricants Harm
Sperm?
Most lubricants damage sperm, as
shown in numerous studies, and
should be avoided for optimal
sperm quality and outcomes.
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Zero percent fertilization or embryo development after exposure to 10%
Priority Care in a bovine in
vitro fertilization model.
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A motile sperm decline of over
30% within 3 hrs of contact to
"non-spermicidal" veterinary
lubricants in a fresh storage
setting, as well as over the 48
hrs of routine cold storage. |
Although the loss
of sperm motility after contact
with lubricants is widely
reported, it is just now being
understood that this abnormal
sperm motility is, more
importantly, associated with
decrease in
the sperm’s ability to
fertilize an egg and support
normal embryo development.
Specifically,
Wright (2007) found that
exposure of sperm to
hyperosmotic lubricants and
gels, such as Aquasonic
Ultrasound Gel®,
KY®,
or Priority Care®
decreased fertilization
potential of bull sperm by
60-100%.
Also Meyers
(2007), has reported that
hyperosmotic conditions cause
cytoskeleton reorganization in
sperm, leading to sublethal
motility and morphology defects
associated with damaged
fertilization potential.
Other lubricants
cause damage to sperm on contact
due to non-physiologic
characteristics such as:
pH -
The window for optimal
stallion sperm function is
narrower than for other species,
being between 7.2 and 7.8, with
a rapid decline in motility seen
for pH levels above 8.0. Most
lubricants have pH values below
this optimal level. Sperm
motility losses occur with
acidic pH exposure. Conversely,
pH levels above 8.0 can cause
sperm to undergo acrosome loss
and death. In order to protect
sperm from pH changes,
lubricant pH must be stable
during contact with air during
handling. This requires a
buffer, such as the phosphate
buffers used in Pre~Seed EQ.
Products that utilize sodium
bicarbonate as a buffer (e.g.
MiniLube) may cause sperm damage
through pH increases to alkaline
levels (outside of a CO2
incubator). This may be why
sperm motility declines have
been reported with 10%
concentrations of Minilube®
(Samper, 2007).
Osmolarity ->
Sperm are also sensitive to both
high and low osmolarity which
causes them to either shrink or
swell beyond their "critical
volume limits". A physiologic
osmolarity of around 320 mOsm/kg
(that of semen) is best for
sperm function.
Stallion sperm motility
decreases linearly with exposure
to increasing osmolarity above
400 mOsmo, such that sperm
motion disappears at 600 mOsm or
greater.
The use of
Priority Care®
as a
lubricant in an artificial
vagina, for example, can cause
equine sperm in the ejaculate to
be rapidly and suddenly exposed
to osmolalities as high as
800 mOsm. Both human and
animal model studies suggest
that this level of osmotic shock
is sufficient to cause
irreversible damage to sperm,
even if the sperm are moved back
into an isotonic situation.
Ionic
Concentration -
Some veterinary lubricants (EquiLube®
& Priority Care®) are
formulated with glycols (such as
propylene glycol) which permeate
across sperm membranes
into the sperm cell, and
impact cell function. Although
most lubricants with propylene
glycol are hyperosmotic,
EquiLube’s osmolarity is close
to physiologic. However, sperm
motility still declined during
contact with Equilube®
in both fresh and cooled sperm
storage
(Samper, 2007).
This may have been due to the
osmotic pressure coming from
propylene glycol molecules,
rather than ionically balanced
salts, as in Pre~Seed
EQ.
pH, Osmolality Levels for Veterinary
“Non-Spermicidal” Lubricants
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Product |
pH |
Osmolality (mOsm/kg)
#
from
glycols
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Too
low |
Physiologic 7.1 – 7.4 |
Too
high |
Physiologic 270 - 365 |
Too
high |
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Equilube®
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7.0 |
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368# |
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KY®
Jelly |
4.5 |
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2052 |
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Minilube® |
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8.0** |
312 |
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Pre~SeedEQ |
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7.3 |
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324 |
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Priority
Care® |
6.0 |
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2199# |
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Mineral
Oil |
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10.5 |
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1200 |
#Osmotic
pressure mostly from Propylene
Glycol, not salts
**Buffered by sodium bicarbonate
only
Some people have suggested that
mineral oil is appropriate for
lubricating devices in the
breeding shed; however, the pH
and osmolality are not
physiologic, and studies have
shown decreased ability of sperm
to penetrate ova in laboratory
studies after mineral oil
exposure.
What makes
Pre~Seed EQ Unique
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Pre~Seed
EQ is the only
lubricant formulated with: |
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A physiologic osmolality and ion
concentration;
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A buffer to ensure that pH
remains stable; and |
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An antioxidant to protect sperm
from free radical damage during
handling. |
Pre-Seed
EQ's Patented
Ingredients Include:
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Purified water: Very
pure with very low
bioburden.
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Hydroxyethylcellulose:
A non-toxic
thickener. Has been
shown to be similar
to cervical mucus in
laboratory studies.
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Pluronic: A
non-toxic slippery
agent.
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Sodium chloride:
Makes the product
isotonic to semen.
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Arabinogalactan: A
unique plant
polysaccharide, that
provides antioxidant
support to protect
sperm.
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Sodium phosphate &
Potassium phosphate:
Protects, buffers
and holds the pH to
that of semen for an
optimal sperm
environment.
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Carbomer: A
non-toxic thickner.
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Methylparaben: One
of the most mild and
well studied of all
preservatives
against bacterial
growth. Parabens in
the concentrations
we use have no
adverse effect on
sperm or
reproduction.
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Sodium hydroxide:
Raises the pH to
that of semen and
fertile cervical
mucus. |
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Pre-Seed
EQ’s Lot
Release Testing
Each Lot is tested
before release to
ensure the
following:
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pH |
Between
7.1-7.4 |
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Osmolality |
260- 330
mOsmo/kg |
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Viscosity |
Between
11,000 –
15,000 cps |
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Sperm
motility |
Sperm retain
80% or more
of motility
in control
medium (w/o
Pre~Seed) |
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Microbial
count |
0 cfu/ml
pathogenic
bacteria,
others < 100
cfu/ml |
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Compare Pre~Seed
EQ to Other
"Non-Spermicidal" Lubricants


Who We Are
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