Long-horned Ankole cattle are prized among the people of southwest Uganda and Rwanda. They are an African taurine breed with origins dating back prior to the introduction of humped-back or zebu cattle into the Horn of Africa during the human invasions from Arabia in the seventh century BC.The Bayarwanda-speaking people living close to the Rwanda border use an unusual bell-shaped wooden pot, called ekyanzi, for storing fresh milk. Every member of a family has one. The milk of two cows will not normally be mixed in the same pot for fear that one of the cows may cease its lactation prematurely. A further taboo prevents married women from milking livestock.