Kodi Nyama Yofiira Yanu Ndi Yotani?
Ogulitsa nthawi zambiri amasankha ng'ombe yomwe imakhala yofiira kwambiri, poganiza kuti ichi ndi chizindikiro cha kutsitsi koma nyama yamtundu wakuda sizingakhale zolakwika. Palibe amene akufuna kudwala ndi nyama yoipa. Nazi njira zomwe mungasankhire nyama yabwino komanso kuti muteteze nokha ndi banja lanu ku matenda odyetsa.
Kodi N'chiyani Chimapangitsa Nkhosa Yofiira Pamtunda?
Zinyama zonse zotentha zimakhala ndi mtundu wotchedwa myoglobin m'matumbo awo.
Izi zimakhala zofiira, koma zikakhudzana ndi mpweya, zimakhala oxymyoglobin ndipo zimakhala zofiira kwambiri.
Kuti mukhale ndi mtundu wokongola kwambiri wa ng'ombe, nkhumba zambiri zamtunduwu zimagulitsidwa pamaphukusi a filimu ya oxygen. Okosijeni imapyola mufilimuyi ndipo imalola kuti nyama ikhale yonyezimira kwambiri yomwe timayanjana ndi ng'ombe yatsopano. Kuperewera kwachilendo ndichifukwa chake sikoyenera kutsekemera nyama m'sitolo.
Ngakhale simukusowa kudandaula za chitetezo cha nyama yatsopano yomwe idagulidwa zomwe ziri mufiriji yanu ndi nkhani ina. Kujambula zithunzi kungasonyezenso kuwonongeka. Ngati phokoso lanu la njuchi liri lofiira kwambiri ndipo silingakhale lofiira mukamawonekera mpweya kwa mphindi khumi ndi zisanu kapena zinai, zimangowonongeka. Kawirikawiri, mphuno yanu imakuuzani pamphuno, monga ng'ombe yowonongeka imamva kununkhira. Zidzakhalanso zovuta kukhudza.
Musati mutenge mwayi uliwonse ndi nyama yowonongeka. Pamene mukukaikira, tulutsani.
Kusamalidwa Mosamala kwa Ng'ombe Yotsika
Zakudya za ng'ombe zimayambitsa matenda a bakiteriya ndi E. coli, salmonella ndi listeria . Njira yoyenera yogwiritsira ntchito ndi kuphika ndizofunikira pofuna kupewa matenda obwera chifukwa cha zakudya. Mabakiteriya ena amathandizira kuwononga mofulumira.
Ng'ombe ya njuchi imakhala yotetezeka kwambiri chifukwa imayamba ndi zidutswa zambiri za nyama zomwe zimawonetsedwa kuti zikhale ndi njira zambiri zogwiritsira ntchito komanso zipangizo zamakono. Kuwaza kumatulutsa nyama yambiri ku mabakiteriya.
Mwamwayi, kuphika bwino kumawononga mabakiteriya. Malinga ndi malangizo a USDA, njuchi iyenera kuphikidwa ku kutentha kwa mkati mwa madigiri 160 F. Gwiritsani ntchito thermometer ya nyama kutsimikizira. Kumbukirani, izi ndizikutentha kwambiri kuposa nkhumba zosawerengeka kapena zosawerengeka. USDA tsopano ikufuna kutetezedwa mosamala ndi malangizo ophika ophimbirako zikhale zogwiritsidwa ntchito ku njuchi zonse zopangidwa ku USA.
Ukhondo mukamagwiritsa ntchito njuchi ndizofunika kwambiri. Izi siziphatikiza manja anu okha koma zida zanu ndi malo opangira ntchito. Musagwiritsire ntchito ziwiya kapena zida zomwezo kuti muzidya nyama ndi ndiwo zamasamba. Kugwiritsa ntchito mpeni womwewo kudula masamba kungadetse ng'ombe yanu yophika kale komanso mosiyana. Kusokonezeka kwapakati ndilo vuto lalikulu lomwe limayambitsa matenda odyetsa zakudya. Zida zonse ziyenera kutsukidwa bwino ndi sopo ndi madzi otentha musanagwiritse ntchito pa chakudya china chilichonse.