HOW TO DEAL WITH INTERNAL INTERNAL PARASITES
Veterinarian Randy Kidd — concluding the article
begun in MOTHER NO. 56 — tells you what to do if your
critters are "bugged".
Are your porkers growing poorly (or losing
weight)? Do your dairy cows give less milk than they used
to? Does your goat have white gums ... or does your mutt
mope?
When such "classic" symptoms show up, most any owner knows
that his or her critters have internal parasites (commonly
called worms). But maybe your animals aren't acting all
that sickly ... perhaps they just look a wee bit listless.
Heck, maybe the beasts even appear to be as happy
as cats in a milking parlor!
However, if you read Part I of this article (in MOTHER NO.
56, pages 76-79), you know that healthy-looking livestock
can have serious worm infestations! To put it
simply, parasites are the biggest medical problem we
veterinarians have to face. So I know from experience
thateven when you don't see a single indication of the
internal freeloaders-you can be spending money, building
feeders, raising thoroughbreds, and in general going to a
whole lot of trouble ... all to provide vintage
"pastureland" for some hidden (but enormous) herds of
worms!
KNOW YOUR ENEMY (THE ESSENTIAL PARASITE
PRIMER)
You should understand— before you start
tackling these foes—just what parasites do and where
they come from. Worms—slimy "spelunkers" that range
from microscopic to yardstick size—can
invade almost every animal organ. The uninvited visitors
will clog hearts, coat stomachs, cause acute bellyaches,
block blood circulation, eat your stock's food (or
innards), and—in some instanceskill the" hosts" they
inhabit.
What's more, the freeloading vermin can strike at any one
of several stages in their life cycle. In fact, immature
larvae sometimes cause more harm than do "adult" worms ...
while seemingly harmless parasite eggs can lie dormant
around the place for years, just waiting for the right
environment (like ol' Bossy's belly) to come along.
These pests can also attack your animals in a number of
ways. Some worm types are handed down—like family
curses—through the mother's placenta (or in her
milk). Flies can deposit eggs in your pet's fur, mosquitoes
can inject the pests into a critter's bloodstream ... or
your beast may simply eat an insect or rodent
that's serving as a parasite "halfway house".
But (pay attention now) the absolute, number one,
main way that animals get worms is through
exposure to parasite eggs in the beasts' own manure (and to
the small bugs, snails, and slugs that feed on that
manure). I can't emphasize this truth too strongly: If your
horse, cow, or whatever can smell its own dung,
the animal is going to get worms.
All these discouraging facts about parasites should lead
you to a couple of basic conclusions. One is that you will
NEVER eliminate all worms—or the threat of
them—from your pets and livestock. And the other is
that you can—and certainly should —
do everything within your power to control the
pests.
And the best way I know to cut down your parasite
population is to consistently follow Dr. Kidd's famous
(well, it sure oughta be):
FIVE-POINT PARASITE CONTROL PROGRAM
POINT 1: There is a wealth of wisdom in keeping your
critters healthy. A good diet, fresh water, clean
shelter, adequate bedding, and a bit of affection now and
then will help your animals resist worms, and other
diseases as well (just as these same preventive measures
work for you).
POINT 2: Graze your grass gracious ly. A pasture
rotation plan will protect your livestock from constant
exposure to their own droppings ... and, therefore, make
the critters a lot less likely to become infested with
worms. The wandering quadrupeds will also eat better, which
(as I said in Point 1) will help make them more disease and
parasite resistant.
POINT 3: Manage your manure. Clean all animal
living quarters every day ... and do the job
right. As we say around the Kidd barn, if you can't sit in
it (the stall, that is), it ain't clean.
POINT 4: Pickle those parasites with the proper
parasiticide. Identify your worm problems, then
ROUTINELY AND CONSISTENTLY attack them with an effective
anthelmintic. Consistency is important ... because the
medicine may knock out all the mature worms in one
application but leave the larvae unscathed. It
takes repeated treatments to catch all the developing
"waves" of worms.
POINT 5: Analyze your efforts. Have a veterinarian
run fecal checks at least once a year ... two
months or more after your last anthelmintic treatment (so
the vermicide has had a chance to wear off). What the yet
learns-when he or she examines the small, fresh sample
droppings you bring—will tell you how well (or how
poorly) your treatment attempts are going. The manure test
will also let you know exactly which parasites you have to
fight in the first place. (By the way, one sample
from each kind of animal you raise will be plenty
... you won't need to cart in a collection of the pungent
pellets,)
ANTHELMINTIC CAUTIONS
All right, you've taken care of your animal's pastureland,
stall, and general well-being, and you've also
taken your manure tidbits down to a vet and had that doctor
analyze your worms. At last the two of you are equipped to
pick out a real parasite-walloping vermicide.
(NOTE: This article will give you general information that
can help you understand what you and your vet are
doing ... it will not teach you how to choose your
own anthelmintic. However, if you do unsuccessfully try a
do-it-yourself treatment anyway—and then end up
consulting a "heifer healer"—PLEASE be kind enough to
tell the doctor what medication you used. It may help him
or her save your critter's life.)
The type of anthelmintic that you and your doc should
choose is one that is safe, economical, easy-to-use, and
eliminates many kinds of parasites (a broad-spectrum
anthelmintic). Most of the newer "scattershot" wormers
satisfy these characteristics.
But, before you administer a ny anthelmintic,
please—for the sake of your beasts' (and your own)
health—take the following precautions:
KNOW WHAT YOU ARE DOING ... READ AND REREAD THE DIRECTIONS
ON THE MEDICINE'S LABEL UNTIL YOU THOROUGHLY UNDERSTAND
THEM.
USE THE CORRECT DOSAGE— It Is possible to actually
kill an animal if you use too much parasiticide or give the
medicine too often. Twice as much is NOT twice as good.
BE PARTICULARLY CAUTIOUS ABOUT USING ANTHELMINTICS ON SICK
ANIMALS, YOUNG ANIMALS, PREGNANT ANIMALS, OR LACTATING
ANIMALS (critters giving milk).
DON'T DRINK ANY MILK FROM A PARASITICIDE-TREATED ANIMAL
UNTIL ALL TRACES OF THE DRUG ARE GONE FROM THE
BEAST'S MILK. Your vet can tell you the "withdrawal time"
for a specific anthelmintic.
DON'T ADMINISTER ANTHELMINTICS IN YOUR LIVESTOCK'S FEED
UNLESS YOU CAN BE ABSOLUTELY CERTAIN THAT EACH AND EVERY
ANIMAL EATS ITS "CHOW" AND GETS ITS FAIR SHARE—AND
ONLY ITS SHARE—OF THE MEDICINE.
Once you've absorbed all those precautionary words, you'll
be ready to help your animals absorb something ...
namely, a good, broad-spectrum worm medication. Because
this whole disease and treatment topic can get pretty
danged complicated, I've worked up an easy-to-read
anthelmintics chart to accompany this article. The table
lists some common parasites, appropriate vermicides, and
sound treatment programs for the standard homestead
livestock and pets.
Remember that—by necessity—all the information
I'm giving you is very general. There're plenty of
good anthelminties that I won't be mentioning ... and new
ones are being developed all the time. Your own vet will
know which particular worm killers work best for your
specific parasites. (After all, the area where you live may
have entirely different worms from my home territory.)
Oh, and one last thing. To keep these pages squeezed down
to one article (instead of letting them fill out the whole
magazine), I've only mentioned a few of the many varieties
of parasites. I sincerely hope that any worm whose name I
leave out will forgive me. Lord knows, I don't need any
worms mad at me.
RUMINANTS
Cattle, sheep, and goats are all ruminants ... that is,
animals with four stomachs (their habit of chewing their
own cud gives us that word for pondering and repondering a
thought, ruminating). These contemplative gnawers
can get infested with a page-filling list of internal
parasites ... but fortunately, most mod ern broad-spectrum
anthelmintics are effective against all sorts of uninvited
ruminant "guests".
One nasty disease that immature ruminants
sometimes catch is called coccidiosis. The frisky young'uns
will probably shake off this single-celled parasite on
their own if they get some sunshine and adequate pasture
room. But coccidiosis can be fatal. Personally, I
wouldn't wait around to see whether the critters drop the
bug or the bug drops them. If your newborns get the
"runs"—or if your herd has had coccidiosis problems
in the past—treat the cudchewing youngsters quickly.
In fact, a sensible preventive measure would be to take a
fecal sample from any newborn ruminant to your vet
for analysis.
Now, I'll tell you a bit more about each of these barnyard
beasties.
CATTLE. As the chart shows, all cattle should be wormed
three to four times a year, beginning when they are about
one month old. Of course, you won't have any trouble
medicating the dairy mooers you handle every day ... but it
isn't so easy to treat freeroaming beef cattle. Some of
those nomadic hoofers get pretty "unhumanized", and trying
to hold them still-long enough to, say, squirt a
thiabendizole paste on their tongues—is about as easy
as shampooing a porcupine. [EDITOR'S NOTE: Randy
wrote about proper handling techniques in "Restrain
That Beast", MOTHER NO. 52, pages 84-87. / You'll
probably have to settle for worming the beef critters
whenever you've got them restrained for some other reason
(like castration or vaccination).
Mother cows should be treated with anthelmintics just
before they calve (to prevent them from passing the worms
to their offspring) and again 90 days later. Paste or bolus
(big pill) forms work well. Remember ... don't drink any of
your cow's milk until the time period during which the
vermicide can be detected in the milk is over, Also, be
sure (by following your vet's advice) that the parasiticide
you use won't ''dry up" your cow and make her stop
producing milk.
SHEEP. Parasitism is the number one health problem in sheep
... and is directly related to how well they are fed, so it
pays to indulge the appetites of your woolly friends. Sheep
worms also experience spring rise . . . in other words, the
pests really come out swinging after winters over.
Therefore, don't forget to give your flock—every
year—a thorough intestinal "spring cleaning".
COATS. These are such argumentative creatures that adding
the anthelmintic to their feed—and making certain
each one eats a fair share—is probably the easiest
way to worm your Nannies and Billies. The feeding technique
is made especially convenient by the fact that most
broadrange worm medicines come in easy-to-eat granular and
liquid forms.
HORSES
Horses can carry a cavalry of internal riders . . . so many
that you may need to worm the steeds pretty clanged
steadinessly just to stay on top of their parasite
problems. That's one reason why I put such a long list of
horse anthelmintics on the bug-and-drug chart: so you can
switch your "weaponry" often enough to keep the vermin from
developing a resistance to any one medication. (The other
reason is that-since you don't milk horses-you can use a
greater variety of anthelmintics on them than can safely be
administered to ruminants.)
Among the nastiest of the equestrian parasites are the
larvae of the strongyle bloodworms. These "bugs" migrate
into the arteries that supply the small intestine, and thus
the parasites can actually block off some of a horse's
blood flow ... causing acute intestinal pain (colic).
Bots (the larvae of the Gasterophilus fly) are an equally
nagging juvenile invader. The hardcoated, sluglike shysters
can cover almost the entire surface of a horse's stomach.
Horses ingest the parasites by innocently chewing or
licking the spotlike-and visible to the human eyeeggs ...
which flies deposit on the critters' slick coats.
And—just in case you haven't heard enough equine
afflictions—another horse worm you can sometimes see
is the Oxyur s, or pinworm. These lower intestine burrowers
may actually crawl out of your steed's backside. If your
horse has a ratty tail (because the animal's been
scratching its southbound end a lot), this pointy parasite
may be the reason.
HOGS
Since animals that have contact with their own manure are
most likely to get worms, pigs—which are renowned for
living the "sty life"—get plenty of parasites. I've
filled a quart mason jar with the worms removed from just
one sow! To keep your swine fine and healthy, you'll have
to worm the creatures on a regular basis. And—because
the porky "garbage disposals" will consume almost
anything—the simplest way to get an anthelmintic into
a pig's stomach is just to add the medicine to its food.
DOGS
Almost all puppies are born with some kind—and often
lots of kinds—of worms. So be sure to treat your
canine babiesand your expectant dog
mothers—conscienously. Piperazine is a common
roundworm medicine that works well (remember, it only kills
mature roundworms, so you have to use it repeatedly). But
piperazine is a specific—not a
broadspectrum—anthelmintic and won't affect any other
worms your pups may be harboring.
Hookworms are a very severe example of those "other'' dog
botherers. These "vampires" enter by penetrating the skin
and can drain enough blood to make the pups anemic ... or
even kill them. Check young dogs—at four to six weeks
of age—for this intestinal parasite (or even sooner
after birth if you've had hookworm troubles in the past).
Another common canine parasite—found in dogs of all
ages—is the tapeworm. Dogs catch these well-named
(they may be five feet long) scoundrels in two ways. The
Taenia tapeworm larvae inhabit the body of a rabbit or
rodent, so—if your hound likes to eat wild critters
out back—it may well already be hosting this pest.
And Dipylidium tapeworm eggs use fleas as their
"pass card" for intestinal entrance. When your canine
chews-and accidentally swallows—an aggravating
skin-biter, the pooch's aggravation may have just begun.
You can tell if Fido has either variety of tapeworm by
looking for white, rice like worm segments in your dog's
feces. If you see these egg-harboring body pieces, medicate
your dog immediately. However, don't use one of the older
tapeworm remedies. Those outmoded anthel mintics knock off
most of the tape
worm's body (the segments will dramatically appear in the
dog's waste ), but the parasite's many-hooked head remains
embedded in your suffering pooch's intestinal wall ... to
grow and strike again. The newer remedies "go for the
jugular" and kill the tapeworm's head (some even dissolve
the whole "measure" so you won't see any segments passed in
the animal's feces at all). Niclosamide is a very effective
and safe example of the more modern drugs available (this
medicine is a specific anthelmintic against the flea-spread
Dipylidium tapeworm.)
One canine problem you definitely should not treat at home
is heartworms. These mosquitospread larvae mature into
spaghetti- strand monsters right in the chambers of your
dog's heart ... and inhibit the pumping of the blood in
this dangerously hard-to-treat organ. So try to prevent the
problem before it starts by finding out—from your
vet—if heartworms are prevalent in your area and what
you can do to prevent them (the test for these parasites is
done from a blood—rather than a fecal—sample).
CATS
Cats can get most of the same parasites that dogs do,
but—because of Tabby's renowned (and effective)
cleaning habits—felines have a lot less worm trouble
than most other specks. One parasite that can easily
trouble cats, though, is tapeworms (cats get'em just as
dogs do, by eating animals or swallowing fleas). In
fact—if fleas are a big item in your area—you
may need to treat your eat for tapeworms every month.
ONE MORE ONCE
What I'm trying to get across by telling you these
discomforting facts is just how fortunate we are today.
Many of the anthelmintics available now arc safe (WHEN USED
CORRECTLY) and are effective. So don't let parasites drain
your critters (and your pocketbook).
I've written this message so many times that my pen is
winded, but dammit , it's true ... you
can solve your parasite problems! You just have to
stick—conscientiously—to the first three points
of the PARASITE CONTROL PROGRAM ... and then periodically
use an efficient anthelmintic.
MORE HOME VETERINARY CARE INFORMATION
Further information about how you can keep your farm
animals and house pets healthy can be found in the
following sources:
1." Common Sense Control of Internal Parasites in
Ruminants", MOTHER NO. 19, pages
38-41.
2."Worm Your Livestock With Snuff", MOTHER NO. 44,
page 95.
3."How to Give That First Injection", MOTHER NO.
43, page 90a (poster).
4."Restrain That Beast! ", MOTHER NO. 52, pages
84-87.
5."You Can Too Give That Animal an
Injection", MOTHER NO. 53, pages
9297.
6."Be Your Own 'Animal Medicine Man' ", MOTHER NO. 54,
pages 75-79.
7."Restrain and Medicate Your Homestead Horse", MOTHER NO.
55, pages 74-77.
8."How to Deal With Internal Parasites, Part I", MOTHER NO.
56, pages 76-79.
(Back issues of this publication are
available — for$2.50each plus $1.00 shipping and
handling per order — from THE MOTHER
EARTH NEWS ® , P.O. Box70,Hendersonville, North Carolina28739.)