▁of ▁cal ves ▁while ▁their ▁moth ers ▁gra ze ▁elsewhere . ▁They ▁have ▁few ▁cal ving ▁problems , ▁due ▁to ▁the ▁structure ▁of ▁their ▁h ind quarters ▁and ▁small ▁cal f ▁sizes ▁( 3 0 – 3 5   kg ). ▁They ▁have ▁a ▁low ▁cal f ▁mort ality ▁rate . ▁ ▁There ▁is ▁a ▁medium ▁to ▁high ▁degree ▁of ▁gen etic ▁variation ▁within ▁this ▁bre ed ▁with ▁a ▁low ▁in bre eding ▁coefficient , ▁despite ▁the ▁historic ▁decl ine ▁in ▁numbers . ▁ ▁Us es ▁The ▁K ho ik ho i ▁used ▁the ▁Af rik an ers ▁for ▁meat ▁and ▁milk . ▁Af rik an ers ▁were ▁used ▁primarily ▁as ▁dra ug ht ▁animals ▁after ▁European ▁settlement , ▁often ▁driven ▁in ▁large ▁teams ▁with ▁as ▁many ▁as ▁ 1 4 ▁animals . ▁They ▁were ▁b red ▁and ▁developed ▁to ▁better ▁suit ▁this ▁purpose , ▁and ▁were ▁pri zed ▁by ▁the ▁vo ort re kk ers . ▁They ▁were ▁also ▁used ▁as ▁da iry ▁c ows , ▁though ▁less ▁commonly , ▁producing ▁higher ▁but ter f at ▁contents ▁than ▁other ▁cattle ▁bre eds , ▁without ▁the ▁need ▁for ▁supp lement ary ▁feed . ▁It ▁was ▁Af rik an er ▁ox en ▁which ▁drew ▁the ▁w ag ons ▁that ▁carried ▁the ▁Vo ort re kk ers ▁on ▁the ▁Great ▁Tre k . ▁ ▁Com mer cial ▁ ▁Af rik an ers ▁are ▁used ▁commer cially ▁to ▁produce ▁be ef , ▁and ▁are ▁often ▁cross bre d ▁with ▁other ▁bre eds ▁in ▁order ▁to ▁improve