Adaptation of the orbital sinus bleeding technique to the chinchilla (Chinchilla laniger).

The orbital sinus bleeding technique was used to obtain 1-3 ml samples of venous blood from chinchillas (Chinchilla laniger) within 1 minute. By monitoring food intake and body weight, this technique was shown to have no detrimental effects on the general health of the animals, but serial samples taken twice weekly over a period of 2 months did induce some degree of hemorrhage or occasional corneal opacity in some animals.