as a means of estimat%ng male reproductive activity
without sacrifice of the animal. The capture of
animals was accomplished by driving them into runways
leading to boxes with trap doors. As the doors were
opened, the deer jumped toward daylight and were
caught in rope nets. Restraint was accomplished

by holding the deer in right lateral recumbancy with
one man on the head and shoulders, one man holding
the front legs, and one man holding the hind legs.

Although various methods and equipment were
used, the following procedures appeared to work best.

It had been observed from previous work, that deer are very
susceptible to fear precipitated shock and that merely
restraining the animals had resulted in several deaths.

The only deer lost in this study was a mature buck

that was subjected to repeated ejaculations in a period

of approximately 20 minutes. Necropsy reports indicated
that signs of circulatory shock were prevalent when this
animal died 12 hours later.

It was found that satisfactory collections could
be made without the use of general anesthesia. Several
types of electrical ejaculators were used and one
that proved satisfactory delivered on a graduated
scale 0 to 750 milliamps of alternating current.

The maximum voltage produced was 33 volts. A rectal
probe was used which was 2.5 cm in diameter and 17 cm

in length. The probe was Tightly lubricated with

a non-insulating lubricant and inserted just inside

the anus. Current was gradually increased and then
reduced to zero over about a 5 second interval. The
stimulus was repeated and the Tevel of current increased
each time until erection and then ejaculation was
obtained. There was variation as “o the amount of

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