a All females demonstrated weak behavioural signs of oestrus and would not breed naturally. Duration of gestation was calculated from the day of the first AI (= Day 0).

Figure 20.5. Female giant panda cub SB 576 born after three transcervical artificial inseminations with only frozen-thawed spermatozoa. (See also Plate XXXX.)

results demonstrated the reproductive competency of frozen-thawed spermatozoa deposited transcervically in giant pandas experiencing 'weak' oestrus.

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