Ukuphathwa Kwezakhi Zofuzo Ekufuyeni Izinkukhu
Ukuphathwa kwezakhi zofuzo kuyinsika ebalulekile yempumelelo yokufuya izinkukhu zanamuhla. Phakathi kwezidingo zemakethe zokukhiqizwa kwenyama namaqanda amaningi, ukusebenza kahle kokudla, kanye nokumelana nezifo, ukuphathwa kwezakhi zofuzo kuyisu lesikhathi eside elithinta ngqo umkhiqizo kanye nenzuzo. Ukuphathwa kwezakhi zofuzo kudlula ukukhetha isitoko "esihle"; kuhlanganisa ukuhlela ukuzalanisa, ukuqoshwa kokusebenza, ukukhetha okuqondiwe kanye nokuzalanisa, kanye nokulawula ukuzalanisa izinkukhu ukuze kuqinisekiswe ukuthi ikhwalithi yabantu iyaqhubeka nokuthuthuka kusukela esizukulwaneni kuya kwesinye.
1. Incazelo kanye nobubanzi bokuphathwa kwezakhi zofuzo
Kalula nje, izakhi zofuzo zibhekana nofuzo lwezimpawu ezivela kubazali kuya enzalweni. Emongweni wokufuya izinkukhu—kungakhathaliseki ukuthi ama-broiler, ama-layers, izinkukhu ezihlala zikhululekile, amadada, izigwaca, noma ama-turkey—ukuphathwa kwezakhi zofuzo kuhilela ukuphatha izinsiza zofuzo ukuqinisekisa ukuthi izici ezifiselekayo ziba namandla kakhulu emphakathini. Izici ezijwayelekile eziqondiwe zifaka phakathi izinga lokukhula, isilinganiso sokuguqulwa kokudla (i-FCR), ukukhiqizwa kwamaqanda, ikhwalithi yegobolondo, ukuqanduselwa, ukuphila kwenkukhu, ukufana kwesisindo sokuvunwa, kanye nokumelana nezifo.
Ububanzi bayo buhlanganisa: ukukhetha uhlobo, ukukhetha abazali abangaba khona, ukuhlela ukuhlangana, ukuhlola ukusebenza kwezingane, ukugcina ukuhlukahluka kwezakhi zofuzo, kanye nokusetshenziswa kobuchwepheshe bokuzala kanye ne-biotechnology uma kudingeka. Ukuphathwa kwezakhi zofuzo kumele futhi kuhambisane nokudla, impilo, izindlu, kanye nokuphathwa kokuphepha kwezilwane, njengoba ukusebenza kwenkukhu kuwumphumela wokuxhumana phakathi kwezici zofuzo kanye nezemvelo.
2. Kungani Ukuphathwa Kwezakhi Zofuzo Kubalulekile?
Ubuhle bezakhi zofuzo bunomphumela ohlangene. Ukuthuthukiswa okuncane esizukulwaneni esisodwa kungaletha ukuthuthuka okukhulu ezizukulwaneni ezilandelayo. Isibonelo, ukwanda okungu-2-3% ekusebenzeni kahle kokudla kungabonakala kuncane, kodwa esikalini sezinkulungwane zezinyoni, izinzuzo zomnotho zinkulu ngoba ukudla kuyindleko enkulu yokukhiqiza. Ngokufanayo, ukwandisa ukukhiqizwa kwamaqanda noma ukuqanduselwa kuzokwandisa umkhiqizo ngaphandle kokudinga amandla engeziwe ekhejini.
Ngaphezu kwalokho, izakhi zofuzo nazo zidlala indima ekumelaneni nezifo. Izinkukhu ezinokumelana okungcono zivame ukuba namazinga aphansi okufa, izidingo ezimbalwa zemithi, kanye nokusebenza okuhlala njalo. Enkathini yokukhathazeka okwandayo mayelana nokusetshenziswa kwama-antibiotic, ukukhetha nokuzalanisa ukumelana nezifo kuye kwaba yinto ebaluleke kakhulu.
3. Izimiso Eziyisisekelo Zokuzalanisa Izinkukhu
Ukuzalanisa kuncike ezimisweni ezintathu eziyinhloko: ukuhlukahluka, ukukhetha, kanye nefa. Ukuhlukahluka kuvela ngenxa yokwehluka kwezakhi zofuzo phakathi kwabantu. Ukukhetha kuyinqubo yokukhetha abantu abaphumelela kakhulu ukuba babe abazali. Ifa liqinisekisa ukuthi ezinye izici ezinhle kakhulu zidluliselwa kubantwana. Impumelelo yokuzalanisa incike kakhulu ekunembeni kwezilinganiso zokusebenza kanye nokuvumelana kokukhetha.
Ekufuyweni kwezinkukhu, umqondo wokwamukeleka kwezilwane (izinga lokwamukeleka kwezilwane) uyaziwa futhi. Izici ezinokwamukeleka kwezilwane okuphezulu—isibonelo, isisindo somzimba eminyakeni ethile—zithuthukiswa kalula ngokukhethwa. Ngokuphambene nalokho, izici ezinokwamukeleka kwezilwane okuncane, njengokumelana nezifo, zithonywa kakhulu yindawo ezungezile, ngakho-ke ukuthuthukiswa kudinga idatha eyengeziwe, ukukhetha okuqinile, kanye nokuphathwa okuqinile kwemvelo.
4. Ukukhethwa Kwembewu Nezinhlobo Ezihambisana Nezinhloso Zokukhiqiza
Isinyathelo sokuqala ekuphathweni kwezakhi zofuzo ukukhetha isitoko esihambisana nezinhloso zebhizinisi. Ama-broiler akhethwa ukuze akhule ngokushesha kanye ne-FCR ephansi, kuyilapho izingqimba zikhethwa ukuze kukhiqizwe amaqanda amaningi kanye nokuqhubeka kokukhiqiza. Ngezinkukhu zendabuko, izinhloso zingahlukahluka kakhulu, njengokugcina ukunambitheka kwenyama, ukuzivumelanisa nezimo zezulu zasezindaweni ezishisayo, noma ukuzivumelanisa nezinhlelo ezisebenzisa amandla amancane.
Ukukhetha uhlobo lokudla kufanele kucatshangelwe:
– Izidingo zemakethe: usayizi wesidumbu, umbala weqanda, okuthandwa ngabathengi.
– Izimo zemvelo: izinga lokushisa, umswakama, ukutholakala kokudla.
– Uhlelo lokulungisa: olunamandla, olusebenzisa kancane, noma olukhululekile.
– Ukusekelwa kokuphathwa: ikhwalithi yokudla, ukugoma, ukuphepha kwezinto eziphilayo.
Imbewu enhle kakhulu izoba nzima ukusebenza kahle uma indawo ingekho esimweni esihle. Ngakho-ke, ukukhetha uhlobo "oluqinile" ngezinye izikhathi kunenzuzo kakhulu kunokukhetha uhlobo olunamandla kodwa oluzwela kakhulu.
5. Ukurekhoda Njengesisekelo Sokukhetha
Ukuphathwa kwezakhi zofuzo akukwazi ukusebenza ngaphandle kwedatha. Ukurekhoda kuhlanganisa ubunikazi bomuntu ngamunye noma beqembu, uhlu lozalo (lapho kungenzeka khona), kanye nedatha yokusebenza. Empeleni, abafuyi bangaqopha:
– Isisindo somzimba samasonto onke noma eminyakeni ethile
- Ukusetshenziswa kokudla kanye ne-FCR
- Ukufa kanye nezimbangela zako
– Ukukhiqizwa kwamaqanda nsuku zonke/masonto onke, isisindo samaqanda, ikhwalithi yegobolondo
- Ukuzala, ukuchamisela, ikhwalithi ye-DOC
- Amarekhodi ezempilo kanye nempendulo emithini yokugoma
Esikalini esincane, ukugcina amarekhodi okulula okusekelwe esibayeni noma eqenjini kuyasiza. Esikalini sokuzalanisa, ukugcina amarekhodi ngamanye kanye nokuhlaziywa kokusebenza kwezingane kusebenza kakhulu ngoba ukukhetha kungaba okunembe kakhudlwana.
6. Ukukhethwa Kwabazali: Izindlela Zokusebenza Nezindlela
Ukukhethwa komzali kuyisisekelo sokuthuthukiswa kwezakhi zofuzo. Izindlela zokukhetha kumele ziqondiswe. Ezikhukhwini ezibekela amaqanda, isibonelo, ukukhetha kungase kugcizelele ukukhiqizwa kwamaqanda, ubudala ekubekeni amaqanda kokuqala, ikhwalithi yegobolondo, kanye nokusebenza kahle kokudla. Ezikhukhwini zenyama, ukukhetha kugcizelela ukukhula, ukufana, ukusebenza kahle kokudla, kanye nempilo yemilenze.
Izindlela zokukhetha zingaba:
– Ukukhetha okufana nokwemvelo: ukukhetha ngokusekelwe ekubukekeni/ekusebenzeni okubonakalayo (isb. isisindo, ukuma komzimba).
– Ukukhetha okusekelwe emndenini: kucatshangelwa ukusebenza kwabafowabo nodadewabo noma abantwana.
– Ukukhetha inkomba: kuhlanganisa izici eziningana zibe yiphuzu elilodwa, ngoba abafuyi bavame ukuphishekela okungaphezu kweyodwa.
Kubalulekile ukukhumbula ukuthi ukuphishekela isici esisodwa ngokweqile kunganciphisa esinye. Isibonelo, ukukhetha ukukhula okusheshayo kakhulu kungahlotshaniswa nezinkinga ezithile zempilo uma kungalingani nokukhetha ukukhuthazela kanye nokwakheka komzimba.
7. Ukuhlela Umshado Nokulawula Ukuzalana Kwabantu Abangashadile
Ukuzalana okungahleliwe kungandisa ukuzalanisa izinkukhu ezizalwa ndawonye, okuyingozi yokuncipha kokusebenza kahle, ukwanda kwamaphutha, kanye nokuncipha kokuphila. Le ngozi inkulu nakakhulu ezinkukhu zasendaweni ezinenani elincane.
Amasu okulawula ukuzalanisa izilwane ezifuywayo ahlanganisa:
– Gcina inani elikhulu ngokwanele lemfuyo esanda kuzalwa
- Ukujikeleza kwabesilisa phakathi kwamaqembu ezinkantini
– Gwema ukusebenzisa abesilisa/abesifazane abanamandla kakhulu esizukulwaneni esisodwa.
– Ukufakwa kwegazi elisha okuhleliwe (ukulihlanganisa ngaphandle) uma kudingeka
Kodwa-ke, ukuzalanisa izilwane ezizalwa ngokufana akukubi ngaso sonke isikhathi uma kulawulwa ezinhlelweni ezithile zokuzalanisa ukuze kwakheke imigqa, kodwa kudinga ukubhekwa okuqinile kanye nemigomo ecacile.
8. Ukuzalelana Kwezinja kanye Nokuhlukana Kwezinja
Ukufuya izinkukhu ezixubile kuvame ukusetshenziselwa ukusebenzisa i-heterosis (amandla axubile), okuwukusebenza okukhuphukile kwezinsana ezixubile uma kuqhathaniswa nesilinganiso sabazali bazo. Embonini yezinkukhu, izinkukhu eziningi zezentengiselwano ziwumphumela wezinhlelo eziyinkimbinkimbi zokufuya izinkukhu ezenzelwe ukuhlanganisa izinzuzo ezahlukahlukene: ukukhula okusheshayo, ukusebenza kahle kokudla, kanye nokukhuthazela.
Emapulazini amancane, ukufuya izinkukhu zendawo ezixubile ezinezinkukhu ezinhle kakhulu kungathuthukisa ukukhula kanye nokukhiqizwa kwamaqanda. Kodwa-ke, ukufuya izinkukhu kumele kuhambisane nohlelo lokuzalanisa olulandelayo, njengoba i-F2 kanye nenzalo elandelayo ingabonisa ukwehluka okukhulu ekusebenzeni. Ngaphandle kohlelo lokuzalanisa, ikhwalithi ingancipha futhi ingaguquguquki.
9. Indima Yobuchwepheshe: Kusukela Ekukhetheni Izakhi Zofuzo Kuya Ekuphathweni Kokuzala
Intuthuko yezobuchwepheshe inikeza amathuba okuthuthukisa ukunemba kokukhetha. Esikalini sokuzalanisa, ukukhetha okusekelwe ku-DNA noma kwe-genomic kungasheshisa ukuthuthukiswa kwezici ezithile, okuhlanganisa nokumelana nezifo. Ngaphezu kwalokho, ubuchwepheshe bokufuya, ukuphathwa kwabafuyi, kanye nemikhuba yokondla abazali nakho kunegalelo ekhwalithini yezakhi zofuzo evezwa ebantwaneni.
Nakuba kungebona bonke ubuchwepheshe obufanele abalimi abancane, isimiso sihlala sifana: uma idatha nokulawula ukuzala kungcono, kulapho izinhlelo zofuzo ziphumelela khona kakhulu. Ngisho nokusetshenziswa kwezicelo ezilula zokuqopha nokumaka imfuyo kuyisinyathelo esibalulekile esiya phambili.
10. Ukuhlanganiswa kwezakhi zofuzo nokuphathwa kwemvelo
Izakhi zofuzo ezinhle ngeke zibe ngcono ngaphandle kokuphathwa kwemvelo. Izinga lokushisa, umoya opholile, ubuningi besitokwe, ikhwalithi yokudla, kanye nezinhlelo zezempilo kuzothinta ukubonakaliswa kwezimpawu zofuzo. Ngakho-ke, ukuphathwa kwezakhi zofuzo kumele kubhekwe njengengxenye yesistimu yokukhiqiza. Uma abalimi befuna ukwandisa ukukhiqizwa kwamaqanda ngokukhetha, ukukhanya, ikhwalithi yokudla, ukutholakala kwe-calcium, kanye nokulawulwa kwezifo zokuzala kumele konke kuhambisane.
Isiphetho
Ukuphathwa kwezakhi zofuzo ekulimeni izinkukhu kuwukutshalwa kwezimali kwesikhathi eside okunomthelela omkhulu ekukhiqizeni, ekusebenzeni kahle, kanye nasekuzinzeni kwebhizinisi. Ngokukhetha uhlobo olufanele, ukuqopha ukusebenza, ukusebenzisa njalo ukukhetha kwabazali, ukuhlela ukuzalanisa ukuze kugwenywe ukuzalanisa izinkukhu ezifanayo, kanye nokusebenzisa ukuzalanisa izinkukhu kanye nobuchwepheshe njengoba kudingeka, abalimi bangathuthukisa ikhwalithi yabantu babo kusukela esizukulwaneni kuya kwesinye. Ekugcineni, ukuphathwa kwezakhi zofuzo okuphumelelayo akukhona nje ngezinyoni "eziphakeme", kodwa futhi mayelana nokuqeqeshwa kwedatha, izinhloso ezicacile zokuzalanisa, kanye nokuhlanganiswa okuqinile nokudla, izindlu, kanye nokuphathwa kwezempilo. Ngale ndlela, ukulima izinkukhu kungaba nokuncintisana okukhulu, okuzinzile, futhi okukwazi ukuhlangabezana nezidingo zemakethe ezishintshayo.
