When choosing breeds or strains, operators shall consider giving preference to breeds or strains with a high degree of genetic diversity, the capacity of animals to adapt to local conditions, their breeding value, their longevity, their vitality and their resistance to disease or health problems, all without impairment of their welfare.
Agus pórtha nó tréithchineálacha á roghnú, meabhróidh oibreoirí ar thús áite a thabhairt do phórtha nó do thréithchineálacha, a bhfuil leibhéal ard éagsúlachta géinití ag baint leo, do chumas na n-ainmhithe oiriúnú do dhálaí áitiúla, dá luach pórúcháin, an fad saoil a bhíonn acu, dá n-acmhainneacht agus dá bhfrithsheasmhacht i gcoinne galar nó fadhbanna sláinte, gan dochar a dhéanamh dá leas.