Urea, musanganiswa uripo muropa, weti nemukaka, ndiyo nzira huru yekuburitsa nitrogen mumhuka dzinoyamwisa.Kuona huwandu hweurea mumombe dzemukaka kunobatsira masayendisiti nevarimi kunzwisisa kuti nitrogen mukudya inoshandiswa sei mumombe dzemukaka.Zvakakosha kuvarimi maererano nemutengo wekudya, physiological effects pamombe dzemukaka (sekuita kubereka), uye kukanganisa kwetsvina pane zvakatipoteredza.Kukosha kwehupfumi hwenitrogen mumupfudze wemombe.Naizvozvo, kurongeka kwekuonekwa kwemazinga eurea mumombe dzemukaka kwakakosha.Kubva ku1990s, pakati-infrared kuonekwa kwemukaka urea nitrogen (MUN) ndiyo yakave nzira inoshanda uye isina kunyanya kushandiswa kuyera nitrogen muhuwandu hwemhou dzemukaka.Muchinyorwa chazvino chakabudiswa muJournal yeDairy Science, vaongorori vepaCornell University vakashuma nezvekuvandudzwa kweseti ine simba yeMUN calibration referensi samples kuvandudza huchokwadi hweMUN zviyero.
"Kana seti yemasampula aya ichiitwa pamuchina wemukaka, data racho rinogona kushandiswa kuona zvakakanganisika mumhando yekufungidzira yeMUN, uye mushandisi wechiridzwa kana mugadziri wemukaka analyzer anogona kugadzirisa kukanganisa uku," akatsanangura mukuru. munyori David.Dr. M. Barbano, Northeast Dairy Research Center, Dhipatimendi reSainzi Yekudya, Cornell University, Ithaca, New York, USA.Ruzivo rwechokwadi uye rwakakodzera nguva yeMUN "yakakosha pakudyisa mombe dzemukaka uye manejimendi ekupfuya," Barbano akawedzera.
Tichifunga nezvekuwedzera kuri kuita kuongororwa kwepasirese kukanganisa kwezvakatipoteredza kwekurima kwakakura uye matambudziko ehupfumi anotarisana nevarimi, kukosha kwekunyatsonzwisisa kushandiswa kwenitrogen muindasitiri yemukaka kungave kusati kwave nekukurumidzira.Kuvandudzwa uku mukuyedzwa kwekuumbwa kwemukaka kunoratidza kufambira mberi kune hutano uye hutsika hwekurima uye kugadzirwa kwechikafu, izvo zvichabatsira vese vagadziri nevatengi.Ona Portnoy M et al.Infrared mukaka analyzer: mukaka urea nitrogen calibration.J. Dairy Science.Kubvumbi 1, 2021, munhau.doi: 10.3168/jds.2020-18772 Ichi chinyorwa chinodzokororwa kubva kune zvinotevera zvinhu.Cherechedza: Zvinyorwa zvinogona kunge zvakagadziridzwa kureba uye zviri mukati.Kuti uwane rumwe ruzivo, ndapota taura kune yakanyorwa source.
Nguva yekutumira: Jul-05-2021