244
OVARIAN ACTIVITY IN PREGNANT BUFFALOES
[Vol. XXV, Part III
SUMMARY
Post-mortem examination of ovaries from 50 pregnant (recent to mid-preg-
nancy) and 24 non-pregnant buffaloes were carried out.
1. The two ovaries were unlike in shape and form. There was always a
single ovulation; in 75 per cent of the cases this was in the right
ovary.
2. There was no ova migration or twinning.
3. The average weight of the two ovaries during pregnancy ranged from
7.6 to 9.6 gm.; this did not vary from that during non-pregnancy.
4. The weight ratio of C. L. ovary to N. C. L. ovary during pregnancy
ranged from 136 to 245 per cent; this was always higher than that
during non-pregnancy.
5. The average diameter of corpus luteum of pregnancy ranged from 1.9
to 2.2 cm. Its form but not size varied throughout pregnancy whilst
it occasionally had a cavity not filled with fluids.
6. The average diameter of corpus luteum (full size) during non-pregnancy
was slightly smaller than that during pregnancy.
7. Graafian follicles developed during pregnancy and did not rupture but
degenerated leaving coloured luteal scars mainly in the N. C. L. ovary.
8. The average diameter of largest follicles in N. C. L. ovaries varied from
0.8 to 0.9 cm. during pregnancy; this was smaller than that during
non-pregnancy.
9. The average diameter of next largest follicle in N. C. L. ovaries ranged
from 0.4 to 0.5 cm. during pregnancy; this was bigger than that
during non-pregnancy.
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