20. Disease prevention in organic livestock production shall be based on the following principles:
a) the choice of appropriate breeds or strains of animals as detailed in paragraph 6 above;
b) the application of animal husbandry practices appropriate to the requirements of each species,
encouraging strong resistance to disease and the prevention of infections;
c) the use of good quality organic feed, together with regular exercise and access to pasture and/or open-air
runs, having the effect of encouraging the natural immunological defence of the animal;
d) ensuring an appropriate density of livestock, thus avoiding overstocking and any resulting animal health
problems.
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