Amahirwe amaze imyaka irenga 20 akora uburemere bwibiziga.Iterambere ryumusaruro nigishushanyo bikorwa nitsinda ryinzobere ninzobere mu batekinisiye.Umusaruro ukurikiranirwa hafi.Sisitemu yo gutwika ifu yerekana neza isura nziza, ubunini, hamwe no kurinda ruswa.Amahirwe akora uburemere bwibiziga kuva 1996. Imirongo yacu ifata ifite imbaraga zo kurwanya ruswa.Nyuma yo gupima umunyu wa laboratoire yayacuKuringaniza Ibizigan'uburemere bw'abanywanyi bacu.Uburemere bwibiziga byamahirwe, ibumoso, bigumaho.Ibinyuranye, irindi rimaze kubora.Urashobora guhitamoyacuKasete yoroshye.Gufata kaseti ni binini kuruta uburemere, bigatuma inzira yo kuyikuramo ikora neza.Amahirwe atanga imiterere itandukanye yauburemere bw'uruziga.Ibyamamare Byacu Bikunzwe cyane bifatika bifite ibice byoroshye kuruta ibindi.Ifasha kurinda ibiro gushushanya no gushira, kimwe no guhuza byoroshye.Ibice byacu bya Trapezium byemerera guhuza imiterere yibiziga mugihe ushyiraho.