Journal of Lipid Research, Vol 26, 776-778, Copyright © 1985 by Lipid Research, Inc.
Notes on the breeding of the WHHL rabbit: an animal model of familial hypercholesterolemia
JP Phelan, BJ Van Lenten, AM Fogelman, C Kean, ME Haberland and PA Edwards
We describe in this study a reliable method for the breeding of the
Watanabe heritable hyperlipidemic (WHHL) rabbit. Placing a male and a
female WHHL rabbit in the same cage for the purpose of mating resulted in
only two pregnancies out of a total of 227 mating attempts (0.9%). After
manually assisting the rabbits, 15% of the matings resulted in pregnancies.
When the female rabbits were injected with 40 I.U. of human chorionic
gonadotropin within 1 hr of this procedure, 56% of the matings resulting in
pregnancies. We feel that the inherent difficulty in breeding the WHHL
rabbit, a model for the disease familial hypercholesterolemia, can be
significantly overcome by the methods discussed in this report.