UMary Allen
Intshayelelo: Ukuqonda ukuVeliswa kweCanine
Ukuzala kweCanine yinkqubo entsonkothileyo ebandakanya utshintsho oluntsonkothileyo lwehomoni kunye nomzimba kwizinja ezingamadoda nabasetyhini. Umjikelo wokuzala wezinja wahlulwe waba ngamanqanaba amane: i-proestrus, i-estrus, i-diestrus, kunye ne-anestrus. Ngexesha le-estrus, ekwabizwa ngokuba ngumjikelo wobushushu, izinja ezizimazi ziyakwamkela ukukhwelana kwaye zibonise utshintsho olwahlukeneyo lomzimba nokuziphatha. Izinja zamadoda, ngakolunye uhlangothi, zifumana ukunyuka kwamanqanaba e testosterone, okubangela ukuqala kokuziphatha ngokwesondo.
Kutheni izinja zibambene ngexesha lokukhwelana?
Enye yeendlela zokuziphatha ezingaqhelekanga eziboniswa zizinja ngexesha lokukhwelana kukuxinana. Esi siganeko, esikwaziwa “njengokubopha iqhina” okanye “iqhina,” senzeka xa incanca yenja yenkunzi idumba emva kokuphuma kwenja, ibangela ukuba itshixeke ngaphakathi kwilungu lobufazi lemazi. Indlela yokutshixa iqinisekisa ukuba amadlozi endoda anexesha elaneleyo lokufikelela kumaqanda emazi yaye andise namathuba okuqhama.
Indima yeeHormones kwi-Canine Reproduction
IiHormones zidlala indima ebalulekileyo ekuveliseni i-canine, njengoko zilawula iinguqu ezahlukeneyo zomzimba kunye nokuziphatha okwenzeka ngexesha lomjikelo wokuzala. Kwizinja zabasetyhini, i-hormone estrogen inoxanduva lokuqalisa isigaba se-proestrus, ngelixa i-progesterone ibangela ukuqala kwe-estrus. Kwizinja zamadoda, i-testosterone inoxanduva lokuphuhliswa kweempawu zesondo zesibini, ezifana nokunyuka kwemisipha kunye nokukhula kwamastes.
INzululwazi emva kweNdlela yokuTyaxa
Indlela yokutshixa ezinjeni sisiphumo sesihlunu se-bulbospongiosus, esifinyela kwisiseko selungu lobudoda benja ngexesha lokuphuma. Ukufinyela kwesi sihlunu kwandisa uxinzelelo kwilungu lobudoda kwaye libangele ukuba lidumbe, livale ngokufanelekileyo ngaphakathi kwilungu lobufazi. Ubude bexesha lokutshixa bunokwahluka ukusuka kwimizuzu embalwa ukuya ngaphezu kweyure, kuxhomekeke kuhlobo kunye nobukhulu bezinja ezibandakanyekayo.
Ixesha lokwabelana ngesondo kwiiCanines
Ubude bexesha lokwabelana ngesondo kwiicanines bunokuhlala naphi na ukusuka kwimizuzwana embalwa ukuya ngaphezulu kweyure, kuxhomekeke kwizinto ezahlukeneyo ezifana nobukhulu kunye nohlobo lwezinja, ubudala kunye nempilo yemazi, kunye nokuchuma kwenkunzi. Ngeli xesha, ilungu lobudoda lenja linokuhlala lithe nkqo ngokupheleleyo okanye ngokuyinxenye, kwaye ezi zinja zimbini zinokuqhubeka nokuziphatha ngokwesondo de kukhululwe isitshixo.
Ukubaluleka koBudlelwane beXesha ekuZalweni kwakhona
Ubude bexesha lokwabelana ngesondo kwi-canines ludlala indima ebalulekileyo kwimpumelelo yokuvelisa. Okukhona iqhaga lide, kokukhona linyuka amathuba okuqhama, njengoko livumela idlozi lendoda ukuba lifikelele kumaqanda ebhinqa kwaye linyuse amathuba okumitha. Ukongeza, ukutshixa ixesha elide kunokunceda ukuvuselela ukukhutshwa kwe-oxytocin, ihomoni edlala indima ebalulekileyo kumaqhina phakathi kwenkunzi nemazi izinja.
Isiphumo sobungakanani kunye nokuzala kwi-Canine Reproduction
Ubungakanani kunye nohlobo lunokuba nempembelelo enkulu ekuzalweni kwe-canine, njengoko izinja ezinkulu zinokufuna ixesha elingakumbi lokutshixa kunye nokuzala ngempumelelo. Ukongezelela, ezinye iintlobo zofuzo zisenokuba lula ukuba neengxaki zokuzala, njengokungazali okanye ukuphazamiseka kwemfuza, nto leyo enokuchaphazela ukuzala kwazo nokuzala.
Ukuphindaphindwa kweziganeko ezibambeneyo kwizinja
Ubuninzi beziganeko ezibambeneyo ezinjeni ziqhelekile, ngakumbi ngexesha lobude bexesha lokuzala. Nangona kunjalo, kubalulekile ukuqaphela ukuba ukunamathela kunye akusoloko kuluphawu lokukhwelana okuphumelelayo, njengoko izinto ezifana nexesha, ukuzala, kunye nempilo zinokudlala indima kwimpumelelo yokuzala.
Izinto ezichaphazela ukuveliswa kweCanine
Izinto ezininzi zinokuchaphazela ukuveliswa kwe-canine, kubandakanywa ubudala, impilo, i-genetics, kunye nezinto ezisingqongileyo ezifana noxinzelelo okanye isondlo. Ukuqonda ezi zinto kunokunceda ukuphucula amathuba okuzala ngempumelelo kunye nokuqinisekisa impilo kunye nokuphila kakuhle kwezinja ezibandakanyekayo.
Isiphelo: ISayensi enomdla emva kwezinja eziBambisana
Isayensi emva kokuba izinja zibambene ngexesha lokukhwelana yinkqubo enomdla kwaye entsonkothileyo ebandakanya utshintsho oluntsonkothileyo lwehomoni kunye nomzimba kwizinja ezingamadoda nabasetyhini. Ukuqonda izinto ezahlukahlukeneyo ezichaphazela ukuveliswa kwe-canine kunokunceda ukuphucula impumelelo yokuzala kunye nokuqinisekisa impilo kunye nokuphila kakuhle kwezinja ezichaphazelekayo. Nangona ukunamathelana kusenokubonakala kungaqhelekanga okanye kuhlekisayo, yinxalenye ebalulekileyo yenkqubo yokuzala kunye nobungqina bebhayoloji ephawulekayo yezi zilwanyana zithandekayo.