Abazali abaninzi banomnqweno omkhulu kunye nephupha lokongeza unyana okanye intombi kusapho lwabo. Ngamanye amaxesha kusenokuba kukugqiba usapho. Ngamanye amaxesha, kusenokuba kungenxa yemvelaphi yenkcubeko yosapho. Kwakhona, kukho izifo ezithile zemfuza ezizuzwa yindoda enye kuphela. Ukukhusela umntwana kwizifo ezinjalo, abanye abazali bacinga ngokukodwa ngesini somntwana. Nokuba siyintoni na isizathu, abantu abaninzi banombuzo othi, “Ngaba ikho ngokwenene indlela yokukhetha isini somntwana esiza kuba naye?” Makhe sithethe ngale nto namhlanje.
Ithini isayensi yezonyango ngale nto?
Ngamafutshane, ukuba ukhulelwe umntwana ngokwesondo esiqhelekileyo, amathuba okuba nenkwenkwe okanye intombazana angama-50/50. Oko kuthetha amathuba amabini alinganayo . Kodwa abantu abaninzi bafuna ukubona ukuba bangawandisa na la mathuba ukuze bawamkele.
Kodwa nantsi inkxalabo evezwa ngoogqirha kunye neengcali zempilo. Oko kukuthi, abanye abazali banethemba elikhulu ngezi ndlela kwaye badanile kakhulu ukuba abafezekisi oko bakulindeleyo. Khawucinge nje, kuthekani ukuba ulandela indlela ethile unethemba lokuba nonyana, kodwa ugqibela unentombazana? Okanye kuthekani ukuba unonyana njengoko ubunethemba, kodwa akanazo iimpawu obuzicingela? Kwiimeko ezinjalo, olo dano lunokuchaphazela ikamva lomntwana kunye nempilo yengqondo.
Ngoko ke eyona nto ibalulekileyo ekufuneka uyikhumbule kukuba akukho nanye kwezi ndlela enokuqinisekiswa ukuba isebenza ngokupheleleyo. Ezinye iindlela ezidumileyo zisenokuba zisekelwe kwiintsomi.
Enyanisweni, kukho "imidlalo" ethile eyayidlalwa ngootatomkhulu noomakhulu bethu. Oogqirha bayabahleka bathi, "Ukuba ezo ndlela azimlimazi umama nomntwana, kulungile ukuzizama."
Ngaba iindlela zendalo ziyasebenza ngokwenene?
Eyona ndlela yendalo idumileyo yokukhetha isini somntwana yindlela kaShettles . Yaziswa kwiminyaka emininzi eyadlulayo nguGqr. Landrum B. Shettles. Le ndlela isekelwe kumhla wokukhutshwa kweqanda kunye nendawo yokwabelana ngesondo.
Ithini indlela yeShettles?
Ngokutsho kukaGqr. Shettles, isidoda esidala umntwana oyinkwenkweImbewu yesidoda (ene-chromosome engu-Y) incinci, ikhawuleza, kwaye iphila ixesha elifutshane. Nangona kunjalo, imbewu edala umntwana oyintombazana (ene-chromosome engu-X) inkulu, ithatha ixesha, kwaye inokuphila ixesha elide.
Ngoko ke ngokwale ngcamango, ucebisa into efana nale.
| Ukuba uyafuna | Indlela ekufuneka ilandelwe (ngokwendlela kaShettles) |
|---|---|
| Inkwenkwe | Isondo kufuneka sibe kufutshane kangangoko kunokwenzeka ne-ovulation yomfazi . Oku kuvumela ukuba i-sperm Y ekhawulezayo ifikelele kwiqanda ngaphambi kwe-sperm X. Kwakhona, iindawo ezibeka i-sperm kufutshane nomlomo wesibeleko (umz., ukungena ngasemva) zezona zilungileyo. |
| Intombazana | Kufuneka ulale ngesondo kwiintsuku ezimbini ukuya kwezine ngaphambi kokukhutshwa kweqanda. Xa iqanda likhutshiwe, isidoda esifutshane se-Y siya kuba sifile, kushiyeke kuphela isidoda se-X esihlala ixesha elide nesinamandla ngakumbi. Kuthiwa isikhundla sobuvangeli, apho indoda iphezulu, sesona sikhundla silungileyo. |
Nangona kuthiwa iShettles Method iphumelele malunga ne-75%, abanye oogqirha bezonyango kunye noogqirha bezifo zabesifazane bayabuza ukuba izinga lempumelelo yezi ndlela zendalo lingakanani. Bathi amathuba okuba nomntwana ngezi ndlela okanye angabi nazo akadluli kwi-50/50.
Nangona kunjalo, kukho uluvo olwahlukileyo ngokupheleleyo koku. UGqr. J. Martin Young, ugqirha, uthi indlela kaShettles iphumelela ngepesenti ephantsi malunga ne-39%. Uveza uluvo oluphikisana noluvo lukaShettles.
- Ukuba ufuna intombazana , yenza isondo kufutshane kangangoko kunokwenzeka ngaphambi kokuba iqanda liphume .
- Ukuba ufuna inkwenkwe , yiba nesondo kwiintsuku ezimbalwa ngaphambi kokuvuthwa kweqanda.
Uyabona, akukho mvumelwano phakathi kweengcali ezahlukeneyo kwanangale ndlela yendalo.
Zithini iindlela zobuchwepheshe obuphezulu?
Kukwakho neendlela ezininzi zanamhlanje ezithi zibonelela ngeziphumo ezingcono kuneendlela zendalo. Ezi zibiza kakhulu kwaye azifumaneki kuyo yonke indawo.
Indlela yeMicroSort
Le yindlela eyamkelekileyo nesebenzayo yokukhetha isini okwangoku. Ibandakanya ukusebenzisa idayi ekhethekileyo, ukukhanya kwelaser, kunye nomatshini obizwa ngokuba yi-flow cytometer ukwahlula ii-X- kunye ne-Y-sperms. I-sperm efunekayo emva koko ifakwa ngokwenziwa kwisibeleko somfazi. Le ndlela idla ngokwenziwa nge- In Vitro Fertilization ( IVF ) .
Ngokweengxelo, le ndlela inezinga lempumelelo eliyi-91% kwabo banethemba lamantombazana kunye nezinga lempumelelo eliyi-73% kwabo banethemba lamakhwenkwe .
Iindlela Eziphikisanayo
Kukho ezinye iindlela ezimbini, kodwa kukho imiba ebalulekileyo yokuziphatha kunye neyomthetho ejikeleze ukusetyenziswa kwazo.
1. Ukuxilongwa Kwemfuza Ngaphambi Kokufakelwa Kwesibeleko (PGD): Oku kuquka ukuvavanya iimbumba ezikhula ngaphandle kwesibeleko sikamama nge-IVF ngaphambi kokuba zifakwe kwisibeleko, kunye nokukhetha kuphela iimbumba ezinesini esifunekayo ukuze zifakwe.
2. I-Chorionic Villus Sampling (CVS): Le ndlela inokumisela isini se-fetus ngokuhlola ii-chromosomes ze-fetus kwasekuqaleni kokukhulelwa.
Eyona nto ibalulekileyo: Zombini i-PGD kunye ne-CVS zenzelwe ukuvavanya izifo ezinzulu zemfuza. Ukuzisebenzisa ukukhetha isini somntwana ophilileyo kuthathwa njengento engafanelekanga kumazwe amaninzi. Kuye kwakho iingxelo zokuba abanye abantu bakhupha isisu xa befumanisa ukuba bakhulelwe umntwana wesini esingafanelekanga ngezi ndlela. Ke ngoko, imibutho yezonyango ayicebisi ukusebenzisa ezi ndlela ngenjongo yokulinganisela usapho.
Umyalezo Wokuya Ekhaya
- Ngokwesiqhelo, unethuba elingama-50/50 lokuba nonyana okanye intombi.
- Nangona kukho iindlela zendalo, ezifana nendlela kaShettles, impumelelo yazo ayikaqinisekiswa ngokwesayensi ngokupheleleyo, kwaye kukho izimvo ezahlukeneyo kwanaphakathi kweengcali.
- Nangona iindlela zanamhlanje ezifana neMicroSort ziphumelela ngakumbi, zibiza kakhulu, ziyinkimbinkimbi, kwaye azifumaneki lula kwilizwe lethu.
- Iindlela ezifana ne-PGD kunye ne-CVS zenzelwe ikakhulu ukubona izifo zemfuza. Ukuzisebenzisa ekukhetheni isini kuyaphikiswana kakhulu.
- Ngaphambi kokuba uzame nayiphi na indlela, gcina ulindelo lwakho lusengqiqweni . Kubalulekile ukuphepha uxinzelelo oluza nokuphoxeka.
- Khumbula, okungaphezulu kwesini somntwanaUkuba nomntwana ophilileyo yeyona nto ibalulekileyo.
- Ngaphambi kokuba uzame nayiphi na indlela kule nkalo, qiniseka ukuba uthetha nogqirha wakho kwaye ufumane ingcebiso efanelekileyo.
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