If dependent variables of the blood collection procedure are not controlled, data variability will increase thereby automatically also increasing the number of animals needed for statistical analysis.

Training macaques to cooperate during blood collection is a practicable and safe alternative to the traditional procedure implying forced restraint. It takes a cumulative total of about 1 hr to train ...

Blood sample collection in lizards is an important technique ... the lizard should be anesthetized during the procedure to avoid laceration of the vessel. The vein lies just below the skin ...