1, Feed Particle Saizi Yekusimbisa Nzira
Feed particle size inoreva kukora kwechikafu mbishi zvinhu, zvekuwedzera zvekudya, uye zvigadzirwa zvekudya. Parizvino, chiyero chenyika chakakodzera ndeche "Two-layer Sieve Sieving Method yeKusarudza Kwekudya Kukuya Particle Size" (GB/T5917.1-2008). Maitiro ekuyedza akafanana nenzira yekuyedza yakapihwa neAmerican Society of Agricultural Engineers. Zvinoenderana nekupwanya kusimba kwechikafu, kupwanya kunogona kukamurwa kuita marudzi maviri: kudzvanya kwakashata uye kupwanya kwakanaka. Kazhinji, saizi yechikamu yakakura kupfuura 1000 μm yekupwanya kwakakasharara, uye saizi yepakati iri pasi pe600 μm yekupwanya kwakanaka.
2, Kudyisa kupwanya maitiro
Zvigayo zvinowanzo shandiswa zvinosanganisira nyundo nezvigayo. Paunenge uchishandisa, inoda kusarudzwa zvinoenderana nekupwanya kubuda, mashandisiro emagetsi, uye rudzi rwekudya. Zvichienzaniswa nesando chigayo, chigayo chine yunifomu yakawanda saizi, kushanda kwakaoma uye mutengo wemuchina wepamusoro. Hammer zvigayo zvinowedzera kurasikirwa kwehunyoro, dzine ruzha, uye dzine saizi shoma yunifomu painopwanya, asi kuiswa.mutengozvinogona kuvahafu iyoyochigayo chengoma.
Kazhinji, zvigayo zvekudya zvinongoisa imwe mhando yepulverizer, sando mill kana chigubhu chigayo. Zvidzidzo zvenguva pfupi yapfuura zvakaratidza kuti multi-nhanho comminution inogona kuvandudza particle size kufanana uye kuderedza kushandiswa kwesimba. Kupwanya nhanho (multi-step crushing) zvinoreva kutswanya nesando kozoita neguyo redhiramu. Nekudaro, data rakakodzera rinoshomeka, uye kumwe kutsvagisa uye kuenzanisa kunodiwa.
3, Mhedzisiro yeChikamu Saizi paSimba uye Nutrient Digestibility yeCereal Feed
Zvidzidzo zvakawanda zvakaongorora huwandu hwakakwana hwesaizi yezviyo uye mhedzisiro yehukuru hwechikamu pakugaya kwesimba uye chikafu. Mazhinji emhando yepamusoro yekurudziro yezvinyorwa zvakaonekwa muzana ramakore rechi20, uye zvinotendwa kuti kudya neavhareji saizi ye485-600 μm kunogona kuvandudza kugaya kwesimba uye chikafu uye kukurudzira kukura kwenguruve.
Ongororo dzakawanda dzakaratidza kuti kudzikisa akapwanyika saizi yezviyo kunonatsiridza kugaya simba. Kuderedza saizi yegorosi kubva pa920 μm kusvika 580 μm inogona kuwedzera ATTD ye starch, asi haina mhedzisiro paATTD kukosha kweGE. Iyo ATTD yeGE, DM uye CP nguruve yakadyiswa 400μm yebhari yekudya yaive yakakwirira kupfuura iyo ye700μm yekudya. Apo saizi yechibage yakaderera kubva pa500μm kusvika 332μm, chiyero chekuora che phytate phosphorus chakawedzerawo. Kana saizi yechibage yadzikira kubva pa1200 μm kusvika 400 μm, ATTD yeDM, N, uye GE yakawedzera ne5%., 7%,uye7 % zvichiteerana, uye rudzi rweguyo runogona kuva nerubatsiro pane simba uye kudya kunovaka muviri. Apo saizi yezviyo yakaderera kubva ku865 μm kusvika 339 μm, yakawedzera ATTD ye starch, GE, ME uye DE mazinga, asi yakanga isina mhedzisiro pakudyara kwemukati kweP uye SID yeAA. Kana saizi yechibage yakadzikira kubva 1500μm kusvika 641μm, iyo ATTD yeDM, N uye GE inogona kuwedzerwa. ATTD uye ME mazinga eDM, GE munguruve dzakadyiswa 308 μm DDGS dzaive dzakakwirira kudarika dziri mu818 μm DDGS yenguruve, asi chidimbu chekukura chakanga chisina simba paATTD yeN uye P. Iyi data inoratidza kuti ATTD yeDM, N, uye GE inogona kuvandudzwa kana saizi yechibage yakaderedzwa ne500 μm. Kazhinji, saizi yechibage kana chibage DDGS haina mhedzisiro pane phosphorus digestibility. Kuderedza kupwanya ukuru hwekudya kwebhinzi kunogonawo kunatsiridza kugaya simba. Kana saizi ye lupine yakadzikira kubva pa1304 μm kusvika 567 μm, ATTD yeGE uye CP uye SID yeAA yakawedzerawo mutsara. Saizvozvo, kudzikisira saizi yepizi dzvuku kunogona zvakare kuwedzera digestibility ye starch uye simba. Apo chidimbu chekudya chesoya chakaderera kubva ku949 μm kusvika ku185 μm, chakanga chisina simba pavhareji yeSID yesimba, inokosha uye isingakoshi AA, asi yakawedzera SID ye isoleucine, methionine, phenylalanine uye valine. Vanyori vakakurudzira 600 μm soya bhinzi yekudya kwakakwana kweAA, simba rekugaya. Mukuedza kwakawanda, kuderedza saizi yechikamu kunogona kuwedzera DE ne ME mazinga, angave ane chekuita nekuvandudzwa kwe starch digestibility. Zvekudya zvine yakaderera starch yemukati uye yakakwira fiber yemukati, kudzikisa chidimbu saizi yekudya kunowedzera DE uye ME mazinga, angave ane chekuita nekudzikisa viscosity ye digesta uye kuvandudza digestibility yezvinhu zvesimba.
4, Mhedzisiro yeFeed Particle Size paPathogenesis yeGastric Ulcer munguruve.
dumbu renguruve rakakamurwa kuita glandular uye kwete-glandular matunhu. Nzvimbo isina-glandular inzvimbo yakakwirira yezvironda zvemudumbu, nokuti gastric mucosa munharaunda ye glandular ine simba rekudzivirira. Kudzikiswa kwekukura kwechikamu chekudya ndechimwe chezvikonzero zvegastric ulcer, uye mhando yekugadzira, density yekugadzira, uye rudzi rwedzimba zvinogona kukonzera gastric ulcer munguruve. Semuenzaniso, kuderedzwa kwezviyo zviyo kukura kubva 1200 μm kusvika 400 μm, uye kubva 865 μm kusvika 339 μm kunogona kukonzera kuwedzera kwechiitiko chegastric ulcer munguruve. Chiitiko chegastric ulcer munguruve dzakadyiswa nemapellets e400 μm saizi yezviyo zvechibage chaive chakakwira kupfuura chehupfu chine saizi yezviyo zvakafanana. Kushandiswa kwepellets kwakakonzera kuwedzera kwehuwandu hwemaronda emudumbu munguruve. Tichifunga kuti nguruve dzakagadzira gastric ulcer zviratidzo 7 mazuva mushure mekugamuchira mapellet akanaka, ipapo kudyisa mapeteti akakora kwemazuva 7 kwakaderedzawo zviratidzo zvemaronda emudumbu. Nguruve dzinobatwa nechirwere cheHelicobacter mushure mekuputika kwegastric ulcer. Kuenzaniswa nekudya kwakakasharara uye chikafu chehupfu, secretion yechloride mudumbu yakawedzera apo nguruve dzakadyiswa zvakakanyiwa zvakapwanyika kana mapellets. Kuwedzera kwechloride kuchasimudzirawo kupararira kweHelicobacter, zvichiita kuti kuderera kwepH mudumbu.Mhedzisiro yeFeed Particle Size paKukura uye Kugadzira Kuita kwenguruve
5, Mhedzisiro yeFeed Particle Size paKukura uye Kugadzira Kuita kwenguruve
Kuderedza saizi yezviyo kunogona kuwedzera chiitiko chekudya ma enzymes uye kunatsiridza simba uye kudya kunovaka muviri. Zvisinei, kuwedzera uku kwekudya hakushanduri mukuvandudzika kwekukura kwekuita, sezvo nguruve dzichawedzera kudya kwadzo kubhadharira kushayikwa kwekudya uye pakupedzisira kuwana simba ravanoda. Iyo inoshumwa mumabhuku kuti iyo yakakwana particle size yegorosi mumigove yenguruve yakarumurwa uye nguruve dzakakora ndeye 600 μm uye 1300 μm, maererano.
Kana saizi yegorosi yakadzikira kubva pa1200μm kusvika 980μm, kudyiwa kwekudya kwaigona kuwedzerwa, asi kugona kwekudya kwakange kusina chekuita. Saizvozvowo, apo kukura kwezviyo zvegorosi kwakaderera kubva ku1300 μm kusvika ku600 μm, kushanda kwekudya kwe93-114 kg yenguruve yakakora inogona kuvandudzwa, asi yakanga isina simba pa 67-93 kg mafuta enguruve. Kune yega yega 100 μm kuderedzwa kwezviyo zviyo, iyo G: F yenguruve inokura yakawedzera ne1.3%. Apo chibage chezviyo chakaderera kubva ku800 μm kusvika ku400 μm, G: F yenguruve yakawedzera ne7%. Mbeu dzakasiyana dzine mhumhu wekudzikisa saizi dzakasiyana, sechibage kana mhunga ine saizi imwechete uye saizi yekudzikisa saizi yakafanana, nguruve dzinofarira chibage. Apo chiyero chezviyo chezviyo chakaderera kubva ku1000μm kusvika ku400μm, ADFI yenguruve yakaderedzwa uye G: F yakawedzerwa. Apo chiyero chezviyo chezviyo chakaderera kubva ku724 μm kusvika 319 μm, G: F yekupedzisa nguruve yakawedzerwawo. Zvisinei, kukura kwenguruve dzakadyiswa 639 μm kana 444 μm soya bhinzi yakanga yakafanana neyo 965 μm kana 1226 μm soybean meal, iyo inogona kunge yakakonzerwa nekuwedzera kuduku kwekudya kwesoya. Naizvozvo, mabhenefiti anounzwa nekudzikiswa kwechikamu chekudya chinozoratidzwa chete kana chikafu chawedzerwa muchikamu chikuru mukudya.
Apo chiyero chezviyo chezviyo chakaderera kubva ku865 μm kusvika 339 μm kana kubva 1000 μm kusvika 400 μm, uye saizi yezviyo yakaderera kubva ku724 μm kusvika 319 μm, chiyero chekuuraya chitunha chenguruve dzakakora inogona kuvandudzwa. Chikonzero chekuongorora chinogona kunge chiri kudzikira kwesaizi yezviyo, zvichikonzera kudzikira kwehuremu hwehutu. Zvisinei, zvimwe zvidzidzo zvakawana kuti kana kukura kwezviyo zvegorosi kunoderera kubva ku1300 μm kusvika ku600 μm, hazvina simba pahuwandu hwekuuraya kwenguruve dzakakora. Zvinogona kuoneka kuti zviyo zvakasiyana zvine mhedzisiro dzakasiyana pakuderedza saizi, uye kumwe kutsvagisa kunodiwa.
Pane zvidzidzo zvishomanana pamusoro pemagumisiro echikafu chekukura kwehuremu hwekudyara uye kukura kwenguruve. Kuderedza saizi yezviyo kubva pa1200 μm kusvika 400 μm haina mhedzisiro pahuremu hwemuviri uye kurasikirwa kwemusana kwembeu dzinoyamwisa, asi kunoderedza kudya kwenguruve panguva yekuyamwisa uyethekurema kwenguruve dzinoyamwa.
