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Holistic Management
of Udder Health
July-August 2002
By Richard J. Holliday, DVM ©2002 Midwest Organic and Sustainable Education Service
Almost everyone
is aware of the basic management practices that are the foundation
of animal health in general and udder health in particular. In this
article I would like to explore several often overlooked principles
and procedures that have a strong influence on udder health.
Care of the
Non-Lactating Udder
Drying-off is a critical time for udder health and any extra care
given at this time will pay big dividends throughout the next lactation.
Prepare the cow for the stressful transition from lactating to non-lactating
by using your favorite herbs, homeopathy preparation, colostrum
products, acupuncture, or others to boost her immune system and
help relieve stress.
After this period
of preparation, just quit milking her. She must have a tight udder
for about five to six days for her hormonal system to get the message
to quit producing milk. Milking her out to relieve the pressure
and discomfort before this time is up only prolongs the process.
After about
five or six days, when the udder swelling begins to recede, sanitize
the teats and milk out some milk. Normal appearing milk indicates
a healthy udder. If this is the case, completely milk-out the udder,
sanitize the teats and rejoice in the knowledge that for now at
least the udder is healthy.
Occasionally
at this time the milk will show abnormalities such as chunks, clots,
watery, slimy, bloody streaks or anything that does not look like
normal milk. In that event, milk out the udder, begin your treatment
of choice and rejoice that you have discovered the problem before
it gets worse. Continue the treatment, check the milk and strip
out the udder every few days for as long as necessary to clear up
the problem. If you let her go completely dry while she has an infection,
she will almost certainly have the same problem when she freshens.
If drying-off
was accomplished successfully, the next critical time for the udder
begins about two to three weeks before freshening and continues
until a week or so afterwards. When the cow begins to "bag-up"
and has a tight udder, sanitize her teats, milk out some milk and
examine it. Early in the "bagging-up" phase, normal secretion
will usually resemble a clear amber fluid somewhat like honey and
progress from that to regular milk as she gets closer to calving.
If normal, be happy.
If the secretion
is not normal
chunks, clots stringy, slimy or bloody
milk her out completely and begin your favorite treatment. Continue
to milk her twice a day until she freshens. This "pre-milking"
procedure will save many udders that would normally be lost if the
infection was allowed to go unchecked all the way to calving. Research
at Cornell University indicates that pre-milking results in approximately
a 50% reduction in mastitis and an equal reduction in cases of milk
fever. There is some evidence that pre-milked cows have easier calving
and less problems with udder edema.
It is not unusual
for a pre-milked cow to produce 50 to 60 lbs of milk per day before
calving. The colostrum is that special secretion produced right
at calving. Thus, the milking right before calving will be much
reduced in volume, darker, thicker and with the typical appearance
of colostrum. Save this milk and the milk from the milking right
after calving and give it to the calf. It will provide all the protection
it needs even though the volume will be less.
These procedures
provide a way to check the status of the udder at key periods during
the dry period and allow you to begin remedial action if and when
a problem occurs. If you follow these procedures you will know 100
percent more about udder health than those that only infuse with
antibiotics at dry-off and then wait until freshening to see if
it worked or not.
Insure A
Good "Let-Down"
The best stimulus to the "let-down" reflex mimics the
suckling of the offspring
warmth, moisture, some pressure
or massage, and removing milk. When these stimuli are applied as
the cow is prepared for milking, oxytocin is released. Within a
minute, myo-epithelial cells surrounding the alveoli contract, thus
forcing milk out into the duct system. If milking is delayed past
one minute oxytocin begins to clear the system and the let-down
reflex does not proceed to completion. If one does not "prep"
adequately and does not begin milking within one minute, milk yield
decreases and "residual milk" increases. Residual milk
makes great food for bacteria. The more you leave in, the higher
the chance for infection. (see Streptococcus below)
Evaluation
Of Udder Health
One of the best ways to evaluate udder health is routine culturing
(bacteriologic examination) of milk from any animal either showing
mastitis or lower than normal milk production. Over time, these
reports will allow you to arrive at a herd profile of the type infection
present. Results interpreted on a herd basis rather than on an individual
basis are of great value in managing the herd for maximum health.
Culture reports
will not be meaningful if the samples are contaminated. If the germ
that ends up in the tube comes from your hand or from a teat that
was not properly cleaned, you could be misled into thinking it was
the organism causing your problem. Contaminated samples are worse
than no sample at all. Results of culturing must always be correlated
with symptoms. If an animal has been treated with antibiotics in
the previous 10 to 14 days as the results will usually be negative.
Almost any bacteria
can cause mastitis under certain circumstances, but most mastitis
is caused by Staphylococcus, Streptococcus, Escherichia coli and
Enterobacter (Aerobacter) aerogenes. It is not known why at times
these bacteria become virulent but stress is certainly a factor.
If a high percentage of samples reveal the same pathogen, this is
presumptive evidence of a cause and effect relationship between
the pathogen and a specific environmental influence. These relationships
are not absolute but they do provide clues about where to look first
for answers. The following guidelines may help you match your problem
to it's cause.
Staphylococcus--Staphylococcus
bacteria have the ability to invade living tissue. Any physical
damage, however slight, to body tissues opens the door for Staph
infection. Of all the bacteria, Staph seems to have the greatest
ability to quickly become resistant to antibiotics. Confirmation
of this lies in the high incidence of post-surgical, antibiotic
resistant, staph infections in humans. This condition is even known
as "a hospital staph infection".
In dairy situations,
two common causes of injured tissue that may lead to a Staph infection
are improperly adjusted milking equipment and the use of irritating
teat dips. Frostbite, stepped-on teats and other injuries may also
be predisposing factors. Don't overlook the possibility of trauma
just because you milk by hand. Hand stripping or milking entirely
by stripping with wet hands can also damage the teat lining and
open the door for Staph infection.
If you have an ongoing problem with Staph infection, look for anything
that causes injury to the teats or udder.
Streptococcus--Streptococci
are not generally invasive but live on the surface of the udder
tissue and in residual milk that is always present in varying amounts
in the udder. Strep infection is generally seen when good milking
techniques are lacking. It can also be associated with stray voltage
or any other problem that interferes with milk let-down.
If you have
an ongoing problem with Strep infection, look first for anything
that interferes with "let-down", "milk-out"
or anything else that increases residual milk.
Escherichia--Escherichia
coli, known as the manure bacteria, is found in all feces. Thus,
mastitis caused by this bacteria is usually associated with unsanitary
conditions. Some observations seem to indicate a higher incidence
of E. coli when the ration contains excess protein, high levels
of nitrates in feed or water or the addition of urea or other NPN's
to the ration.
If you have
an ongoing problem with E. coli infection, look for anything that
causes unsanitary conditions and check the water for nitrates and
the feed for nitrates or excess protein.
Enterobacter--Enterobacter
(formerly Aerobacter) aerogenes is often related to contaminated
drinking water, especially if animals have access to unsanitary
water tanks, ponds, streams or puddles in the barnyard. If you have
an ongoing problem with this infection, first check for the possibility
of a contaminated water supply.
Some laboratories
report E. Coli, Enterobacter and other Gram-negative simply as "coliforms".
If a culture report lists any of these, I would strongly suggest
culturing the water if you have not already done so. If the water
is contaminated, remedial action should be taken at once.
Pseudomonas--Pseudomonas
aeruginosa is a soil-borne organism that is often associated with
the animals drinking surface water or water that has been contaminated
with the effluent from septic systems or drainage fields. It is
occasionally cultured from water systems in dairy barns, hot water
tanks and even in some user-prepared teat dips. A mild pseudomonas
infection may only show a rainbow colored oil slick in the filter
sock. Symptoms can range from that to sudden death.
Corynebacterium--Corynebacterium
pyogenes mastitis is usually called "yellow pudding" mastitis,
as that term adequately describes the udder contents. It usually
has a bad odor. This bacteria can usually be cultured from "hock-abscesses"
in dairy cows and is a common cause of abscesses in goats. This
germ is sometimes named Arcanobacterium pyogenes or Actinomyces
pyogenes
Klebsiella--Klebsiella
pneumoniae and other species can cause an acute, "hot"
coliform type mastitis that can result in death in a short time.
Symptoms usually include high fever, watery bloody milk, off feed
and dehydration. Klebsiella infection is often associated with the
use of fresh, damp, soil contaminated sawdust for bedding.
Mastitis:
Treat The Cause, Not The Effect.
After spending so much time on bacteria, I should point out that
it is a mistake to approach mastitis strictly as a bacterial problem.
There is no question that bacteria are part of the problem, but
I believe their role to be more of an effect rather than the actual
cause.
Simplistic medical
thought encourages us to treat the bacterial infection--the effect--while
holistic principles would have us zero in on the cause, which is
usually a stress-induced immuno-suppression.
I question whether
anything should ever be infused into the udder, except possibly
as a last resort. Even under the most sanitary conditions, the risk
of introducing pathogens into the udder far outweighs any anticipated
benefit. If one must infuse the udder, use a blunt infusion cannula
and only insert it about one-fourth inch (just past the teat sphincter).
Inserting the cannula to the full depth--almost an inch in some
cases--is known to cause internal damage to the teat lining. Never
use an injection needle.
Also consider
this: any foreign substance (honey, egg-whites, lactobacillus cultures,
other folk remedies and antibiotics) introduced into the udder will
act as an irritant and cause a non-specific inflammatory response
(NSIP), with a concurrent increase in white blood cells. The common
result is that the NSIP will sweep away any mild mastitis infections
along with the foreign substance that originated the NSIP. I believe
it is a mistake to speak of these irritants as "cures"
when actually the relief from the symptoms of mastitis is a secondary
effect of the body ridding itself of the foreign substance. This
is not to say that these therapies are not often effective, but
I believe it is helpful to know the actual mode of action and the
great risk of causing a more severe infection.
One of the best
ways to treat mastitis is to strip out the affected udder as often
as you can
even as often as every 15 to 30 minutes if possible.
This has the effect of removing bacteria and their toxins, reducing
swellings and improving blood supply. You can augment this procedure
with your favorite alternative immuno-stimulant such as homeopathy,
herbs, acupuncture, refined colostrum antibodies, massage with warming
liniments, hot or cold compresses, etc.
Whatever the
nature of the treatment used, it will usually be unsuccessful until
the adverse predisposing factors are removed. When that is accomplished
the incidence of clinical mastitis and the need for treatment diminishes
dramatically.
Disclaimer
The information provided herein is for educational purposes only.
The author and publisher have no control over the use, misuse or
applicability of this information to your situation, and thus assume
no liability. Always consult your veterinarian or other licensed
animal health professional before making any changes to animal health
management.
Richard J.
Holliday received his DVM degree from University of Missouri in
1959 and conducted a private mixed practice in northwest Missouri
for 25 years. For the last 17 years he has been employed as a Technical
Services Veterinarian by IMPRO PRODUCTS, Inc., a company that produces
and markets holistic animal health and nutrition products for dairy
cattle. Dr. Holliday became certified as a Veterinary Acupuncturist
in 1988 and was President of the International Veterinary Acupuncture
Society for a 2 year term from 1992 to 1994. Holliday has been actively
involved in promoting organic agriculture and holistic veterinary
medicine for over 35 years. He believes that his interest in these
concepts began when he was 14 years old and read Louis Bromfield's
books "Pleasant Valley" and "Malabar Farm".
Richard and his wife Ruth have been married for 47 years and have
3 daughters and 14 grandchildren.
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