IN UTERO PRODUCTIVITY OF MOOSE IN MANITOBA
Information on in utero productivity in Manitoba moose has been lacking. Concern has been expressed that traditional bull only hunting seasons have resulted in fewer bulls and barren cows. This paper presents preliminary information garnered from an ongoing investigation, the objectives of which are to determine if potentially productive cows are being bred, the pregnancy rate for different age cohorts, the sex ratio of fetuses and the breeding period of moose. Data presented show a high twinning rate in older animals on Hecla Island (1978-1980), a skewed sex ratio in favour of females from five game hunting areas in 1986 which was absent in the Hecla Island data. In addition, high reproduction was noted in the yearling cows taken in 1986.
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