Sex hormone regulation of collagen concentrations in cranial cruciate ligaments of sexually immature male rabbits.

Objective: To investigate the effects of gonadectomy on collagen homeostasis in cranial cruciate ligaments of male rabbits.

Animals: 30 sexually immature (16-week-old) male New Zealand White rabbits.

Procedures: Rabbits were randomly assigned to 5 groups of 6 rabbits each: sexually intact, placebo (control group); castrated, placebo; castrated, testosterone; castrated, dihydrotestosterone; and castrated, 17β-estradiol (E(2)).

Temporal-spatial gait analysis by use of a portable walkway system in healthy Labrador Retrievers at a walk.

Objective: To establish a protocol to collect temporal-spatial gait analysis variables by use of a portable walkway system in Labrador Retrievers at a walk and to determine reference values.

Animals: 56 healthy Labrador Retrievers.

Procedures: 6 passes across the walkway (3 passes in each direction) were recorded.