Hormones
Hypothyroidism
Animal Fertility Clinic, Escondido, CA -
Hypothyroidism is the most common
hormone
imbalance found in dogs. It has so many symptoms that it often is called 'the great impersonator'.
... WE DO
NOT RECOMMEND BREEDING ANIMALS WITH HIGH AUTOANTIBODIES AND/OR LOW
RESTING
THYROID LEVELS. ... Animals with low thyroid levels are more susceptible to immune-based
diseases.
Vaccination and drug therapy should be administered carefully.
If you decide to breed a bitch
with hypothyroidism
be sure to put her on thyroid medication and make sure that she is retested and that thyroid and
autoantibody levels
are within recommended levels at least several months before breeding to avoid passing the
problem to puppies
through the placenta. Please note that this problem can be inherited as well as passed through
the placenta.
Testing, have your vet contact OFA
and Michigan State University (517) 353-1683.
Interpreting Blood Test Results
Endocrinology FAQ about... Thyroid Function In Dogs
Hypothyroidism: A New Direction
Thyroid Dysfunction as a Cause of Aggression in Dogs and Cats
Diary of a Hypothyroid 'Hound
Greyhounds and Hypothyroidism
Endocrine Diagnostic Services
AKC Gazette, 10/1993, page 124, thyroid problems in bullmastiffs.
The Mastiff Reporter, Volume I, #3, 1993, page 1, article by John Cargill.
Dog World, 3/1994, page 8, "Thyroid hormones and behavioral problems."
AKC Gazette, 1/1994, page 38, "Antibiotic May Affect Thyroid Test."
von Willebrand's Disease (vWD)
Bleeding disorder. Inherited, autosomal (non sex-linked)
incompletely dominant
trait. The test for vWD detects carriers as well as dogs that actually have vWD. A dog that has
vWD usually dies
in the womb (which may account for absorption of some or all of the litter before whelping, or still
births).
Testing: have your vet contact Dr Dodds in Albany, NY, call (518) 869-4507.
Understanding von Willebrands Disease
DNA Test for vWD
Inherited and Acquired vWD
References
MCOA Journal, 1993, #3, page 100, MCOA Genetic Data Collection.
Canine News, 2/1994, "Chemistry Panels - Lots Of Answers For A Small Price."
Dog World, 3/1995, page 26, "The immune system: guardian against disease."
AKC Gazette, 4/1995, page 34, "Thyroid and von Willebrand's."
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