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New Zealand ewes produce 36 million lambs each spring time. Every year.
If you calculate that the average lamb life expectancy is 10-12 years, that means there are 396 million lambs in New Zealand, even if you take mortality, males, and other negating aspects into account, the groth ratio of the lambing business keeps in roughly in those numbers.

http://en.wikipedia.org/wiki/Domestic_sheep_reproduction

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15y ago

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