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Abstract:
Approximately 14 days after SHN, SLN and C3H/He strains of mice gave birth, their pups were removed. After 14--16 hours away from their pups, the dam was anesthetized, injected with oxytocin and milked. The milking device consisted of a rubber-stoppered centrifuge tube containing a stainless steel catheter and polyvinyl chloride tube. It was operated by vacuum.