mortality/aging
• approximately 90% died in the neonatal period
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embryo
• 20% reduction in body size relative to heterozygous female embryos
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endocrine/exocrine glands
growth/size/body
• 20% reduction in body size relative to heterozygous female embryos
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• 20% to 30% reduction in body size relative to heterozygous females
• growth disturbance originates prior to E12.5
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reproductive system
• oocyte deficit exists at 4-5 days after birth therefore independent of reproductive cycling
• oocyte deficit is one eighth the number in +/+ females
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• reduced number of primordial germ cells at E11.5
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• shortened reproductive lifespan
• only 31% of females mated produced litters
• litter size averaged 4 compared to 6 produced by +/- females
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cellular
• oocyte deficit exists at 4-5 days after birth therefore independent of reproductive cycling
• oocyte deficit is one eighth the number in +/+ females
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• reduced number of primordial germ cells at E11.5
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