TIMING AND BASIC FEATURES OF THE
REPRODUCTIVE CYCLES OF KANGAROOS

Species	Oestrus cycle, days	Gestation	Postpartum mating	Blactocyst diapause	Loss of PY to next birth, days
Red	34.8 +/- 0.6	33.2 +/- 0.2	yes>	yes	34.7
Wallaroo	33.6 +/- 0.6	32.7 +/- 1.5	yes	yes	30.9 +/- 2.0
Euro	36.7 +/- 3.5	33.4 +/- 1.5	yes	yes	34.9 +/- 3.2
Antilopine	41.0 +/- 4.2	33.9 +/- 1.3	no	?	?
East. grey	45.6 +/- 9.8	36.4	no	yes	28-32
West. grey	34.9 +/- 4.4	30.6	no	no	never

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