Kuwusizo ukwazi ngezinhlobo zezinja nokuthi yini inzalo yezinja ngaphambi kokunquma ukuthola i-puppy entsha. Inzalo yezinja ihamba ngaphezu kwe-cute puppy ibheka futhi ingasiza abanikazi bakhethe umdlalo ophelele. Inzalo yezinja ibhekisela kuhlobo oluhlukile lwezinja ezibonakalayo ezibonakalayo ezingokwenyama kanye / noma zentandokazi ezingahle ziphinde zakhiwe enzalweni yenja. Ngamanye amazwi, inja-inja nenja ye-"uhlobo" olufanayo iyoba namantombazane abheka futhi enza ngendlela afana ngayo.
Kuyini Ukuzalwa?
Inja yohlobo oluthile inekhokho eyaziwayo, elandelwayo ebizwa ngokuthi isizalo. Inja ehamba phambili noma "ehlanzekile" enye ikhiqizwa ngokuxubha inja yesilisa nowesifazane inhlobo efanayo. Ukubhalisa udoti okhishwe kuleso simo sokuzalisa ubuhlobo balezo zingane ngokuwabeka ebhalweni kwinhlangano yokubhalisa inja. Kunezinhlobo ezingaphezu kuka-400 ezihlukene zezinja ezaziwa emhlabeni jikelele.
Imfuyo Ithuthukisa Kanjani?
Izinja ziye zahlotshaniswa nabantu okungenani iminyaka engu-15 000, kanti ucwaningo lwamuva lwama-genetic olukhomba eminyakeni engaba ngu-100 000 edlule. Izinja "izinhlobo" ezifana nelama-Alaskan Malamute no-Saluki zivela emvelweni, futhi zashintsha kancane kakhulu emakhulwini eminyaka. Imikhakha eminingi esiyazi namhlanje iye yaba khona iminyaka engama-3000 noma isikhathi eside futhi ukukhethwa ngokukhethwa yizinja zezinja kucwengile le mikhakha.
Ukubukeka kwezinja nokuziphatha kwavela lapho abantu bekhetha izinja ukuze zivumelane nezidingo zabo-ukuthuthukisa ukugcoba noma ikhono lobuhle, isibonelo.
Ababelethi basalokhu bezama ngokudala ama-hybridi nezinja eziklami. Esikhathini esedlule lapho "uhlobo" olusha luvela ngokuzalana ngengozi noma ukuguqulwa kwamagama, abantu bakuqala babakhuthaza.
"Izinguquko ezizenzekelayo" zingengozi zemvelo ezishintsha ukubukeka noma ezinye izici zenja. Izingozi ezijabulisayo zihlanganisa ukuma komzimba nosayizi, ukubeka indlebe nokusila komsila , ikhono elimnandi nelokubona, noma ngisho nokuboya izinwele nombala.
Naphezu kokuhlukahluka okukhulu ngobukhulu nokuma, zonke izinja zibonakala kalula njengezinyosi. Imikhakha yezinja ihamba ngobukhulu kusukela kumasayizi we-teacup, kuya kumbindi we-pony-usayizi wama-200 kanye nama-canine.
Izinkomo ezinkulu
I-Giantism (i-acromegaly) i-mutation idale izinhlobo ezifana ne- Great Dane neSt. Bernard. Lezi zinhlobo ze-mastiff-hhayi kuphela ezikhudlwana, zivame ukuba zi-muscled kakhulu kanye ne-cobby-zine-compact, isakhiwo esifushane. Ngokuqhathanisa, izinhlobo zokubukwa njenge- Greyhounds azikho ngaphansi komswakama kodwa zibonakala zingaphezulu - futhi kukhona ububanzi obuningi phakathi kokubili kokubili.
I-Little Breeds
Izinhlanga ezincane zakhiwe lapho inja evamile evamile imisiwe kancane. I- Whippet, isibonelo, ibukeka njenge-Greyhound encane, kanti i-Poodle ifika ngamasayizi amathathu okufaka i-Toy Poodle encane. Kungaba nzima ukukholelwa, kodwa i- Pug iyinhlobo yamastif, ngakho-ke yi-Chihuahua, kaningi ngesimo sengqondo esifanayo njengabafana babo abakhulu.
Ezinye izinja "ezincane" azizona ezincane kakhulu-kodwa kunalokho, zilula nje. Ukushaywa komzimba (achondroplasia) kuholela ekunciphiseni, amathambo omlenze wesigubhu okwedlulele kodwa kushiya umzimba ngokulingana. Izibonelo zihlanganisa izinhlobo ezifana ne-Dachshunds, i-Basset Hounds ne- Corgies.