Such long storage periods were necessary because egg production was not consistent with seasonal variations.

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Free-range production now looks to have the potential to reverse the sharp decline in local egg production.

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Once a donor is selected, she is injected with powerful hormones for up to three weeks to promote egg production.

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When Croatia joins the EU in 2013 (assuming Croats approve accession in a referendum on January 22nd), Bosnia will no longer be able to export much of its dairy, meat and egg production to its neighbour, because its leaders cannot agree on whether responsibility for food safety lies with the state or the entities.

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Ethicists on the left have worried that it might turn women into egg-production factories.

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As some scientists in the 1960s and 1970s correctly noted, Salmonella infection may be rooted in the industrialisation of egg-production.

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She also produces for both film and television through her production company, Egg Pictures.

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The second thing the team did was to introduce a genetic mutation into the genome of the young egg that allowed for the production of a growth factor, a kind of protein, that can only come from the paternal genome but is vital for normal embryonic development.

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This gland is "switched off" during IVF treatment because it controls a woman's own hormone production, preventing any activity which could interfere with treatment which artificially stimulates the ovaries to release an egg.

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