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Use of specialised crops
mainly those with tannins
not sure how they work
looking for other crops with
anthelmintic activity
would be worth investigating with
Breeding for enhanced immunity
possible but slow - similar
heritability of about 0.3 as in sheep
some research in Scotland has
shown progress over some years at
a similar rate to improvements in
are differences in mature immunity
between breeds ?
Angoras < New Zealand ferals
Boers ???