Kungani kunamathumba amaningi kanye nomdlavuza ezilwaneni ezifuywayo manje?

ucwaningo lomdlavuza

Eminyakeni yamuva nje, siye sabhekana nezimila, umdlavuza, nezinye izifo ezifuywayo.Iningi lamathumba ayingozi emakati, izinja, ama-hamster, kanye nezingulube ze-Guinea zisengelashwa, kuyilapho umdlavuza obulalayo unethemba elincane futhi unganwetshwa ngokufanelekile kuphela.Okunyanyisa nakakhulu ukuthi ezinye izinkampani zisebenzisa uthando nenhlanhla yabanikazi bezilwane ezifuywayo ukwethula izidakamizwa ezikhangisayo nezokwelapha, kodwa lapho zihlolisiswa kahle, izithako ngokuvamile ziyimikhiqizo yokudla okunomsoco.

Izimila nomdlavuza akuzona izifo ezintsha, futhi izimila zamathambo ziye zavela ngisho nasezinsalela eziningi zezilwane.Sekuyiminyaka engaphezu kuka-2000 odokotela benaka umdlavuza wabantu, kodwa umdlavuza usalokhu uyimbangela evame kakhulu yokufa kwamakati, izinja kanye nabantu emazweni athuthukile.Odokotela benze intuthuko enkulu ocwaningweni lomdlavuza wabantu.Njengezilwane ezincelisayo, odokotela bezilwane basebenzise ulwazi lwabo oluningi ekwelapheni izilwane ezifuywayo.Ngeshwa, odokotela bezilwane banolwazi olulinganiselwe mayelana nomdlavuza othile ezilwaneni, futhi ucwaningo lwabo ngezimila eziyingozi luncane kakhulu kunolwabantu.

Kodwa-ke, umphakathi wezilwane uphinde wathola izici ezithile zomdlavuza wezilwane ezifuywayo ngemva kweminyaka yocwaningo.Izinga lokutholakala kwamathumba omdlavuza ezilwaneni zasendle liphansi kakhulu, futhi izinga lokutholakala kwezilwane ezifuywayo ezifuywayo liphakeme kakhulu;Izilwane ezifuywayo zivame ukuba nomdlavuza ezigabeni zakamuva zokuphila, futhi amangqamuzana azo athambekele kakhulu ekushintsheni amangqamuzana omdlavuza;Siyazi ukuthi ukwakheka komdlavuza kuyinqubo eyinkimbinkimbi, engabangelwa izici ezihlukahlukene ezifana nezakhi zofuzo, indawo ezungezile, ukudla okunomsoco, ukuziphendukela kwemvelo, ngisho nokusebenzelana kwezinto ezihlukahlukene ezakha kancane kancane.Singaqonda ezinye zezimbangela eziyinhloko zamathumba nomdlavuza, okwenza kube lula ngezilwane ezifuywayo ukunciphisa amathuba okugula ngokwamandla azo.

Izimbangela zamathumba

Izici zofuzo kanye negazi ziyizimbangela ezibalulekile zomdlavuza wesimila, futhi izibalo zomdlavuza wezilwane zisekela ukutholakala komdlavuza wesimila.Isibonelo, ezinhlotsheni zezinja, ama-Golden Retrievers, ama-Boxers, ama-Bernese Bears, nama-Rottweilers ngokuvamile athambekele kakhulu ekubeni nomdlavuza othize kunezinye izinja, okubonisa ukuthi izici zofuzo ziholela engcupheni enkulu yomdlavuza kulezi zilwane. lezi zilwane zingase zibangelwe inhlanganisela yezakhi zofuzo noma izinguquko zofuzo ngazinye, futhi imbangela yangempela ayikaziwa.

Kusuka ocwaningweni ngomdlavuza womuntu, siyazi ukuthi iningi lomdlavuza lihlobene eduze nendawo kanye nokudla.Izinto ezifanayo zobungozi kufanele zisebenze nasezifuyweni ezifuywayo, futhi ukuba sendaweni efanayo nomnikazi nakho kungase kudale izingozi ezifanayo.Nokho, ezinye izilwane ezifuywayo zingase zivumelane nezimo ezingezinhle kunabantu.Ngokwesibonelo, ukuchayeka isikhathi eside emisebeni ye-ultraviolet kungase kubangele umdlavuza wesikhumba kubantu.Nokho, amakati nezinja eziningi zinezinwele ezinde, okwenza zingazweli.Nokho, ngokufanayo, lawo makati nezinja ezingenaboya noma ezinezinwele ezimfushane zingathinteka kakhulu.Intuthu kagwayi, ukungcoliswa komoya okukhulu, kanye nenkungu nakho kungezinye zezimbangela eziyinhloko zomdlavuza wamaphaphu womuntu, osebenza nasezifuyweni ezifuywayo njengamakati nezinja.Yimaphi amanye ama-insecticide amakhemikhali, ama-herbicides, kanye ne-heavy metal substance nakho okungaba yizizathu.Kodwa-ke, ngenxa yokuthi lezi zilwane ezifuywayo ngokwazo zinobuthi obuphezulu, ukuchayeka kuzona njalo kungase kubangele ukufa ngenxa yobuthi ngaphambi kokudala izimila zomdlavuza.

Zonke izilwane ezifuywayo okwamanje zine-squamous cell carcinoma, okuyisimila esiyingozi (umdlavuza) esenzeka esikhumbeni esingashoni.Ngemva kokubona, ukuchayeka isikhathi eside emisebeni yelanga nemisebe ye-ultraviolet kuyimbangela ebalulekile yalesi sifo.Ngaphezu kwalokho, amakati amhlophe, amahhashi, izinja, nabanye abanemigqa emhlophe basengozini enkulu yokuba ne-squamous cell carcinoma;Amakati abhemayo nawo ayindawo esengozini enkulu yomdlavuza, futhi amakhemikhali entuthu kagwayi afakazelwe ukuthi abangela i-squamous cell carcinoma emlonyeni wekati.