June, 1955]
S.
S.
PRABHU
AND
U.
D.
SHARMA
97
4. Using values of first exhaustion trial only regressions worked out indicated
that on an average, semen volume, sperm concentration, total sperm in ejaculate
and percentage of abnormal sperm decreased with the number of ejaculates, while
initial pH and reaction time increased with the number of ejaculates. Only the
variation in the reaction time rate was statistically significant.
5. A fair indication of the average semen quality and reaction time of all eja-
culates in a trial can be had from a study of only the average values of first two
ejaculates.
ACKNOWLEDGMENT
The authors are indebted to Dr P. Bhattacharya, Head of the Division of
Animal Genetics, Indian Veterinary Research Institute, Mukkteswar Kumaon for
providing all facilities and to Shri V. N. Amble, Statistician (Animal Husbandry),
Indian Council of Agricultural Research, New Delhi, for his ungrudging help and
advice in the statistical treatment of the data. They are grateful to Dr S. Datta,
Director, Indian Veterinary Research Institute, Izatnagar, for his keen interest
and general encouragement.
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