Total length was then measured by placing the animal flat on the plastic metric ruler, holding the nose at zero and feeling to tip of the last vertebra in the tail for the total length measure.
(Total length; was measured; by placing the animal flat on the plastic metric ruler, holding the nose at zero and feeling to tip of the last vertebra in the tail for the total length measure; T:then)
Total length
was measured
by placing the animal flat on the plastic metric ruler, holding the nose at zero and feeling to tip of the last vertebra in the tail for the total length measure T:then