Isondlo sisitshixo sokuba ihagu itye kakuhle.Ngumlinganiselo oyimfuneko wokuncedisa isondlo seehagu kunye nokuqinisekisa umgangatho weemveliso, kunye neteknoloji esasazeke ngokubanzi kwihlabathi.Ngokuqhelekileyo, umlinganiselo wezongezo zokutya kwisondlo awuyi kudlula i-4%, ephezulu, kwaye iindleko zokunyusa ziya kunyuka ngokuqinisekileyo, ezingafanelanga iindleko kubalimi.

Umbuzo woku-1: kutheni iihagu zifuna izongezo zokutya nezokutya ngoku?

Amafutha ehagu, isitshixo kukutya ugcwele, yitya kakuhle.

UQiao Shiyan, unjingalwazi kwiYunivesithi yezoLimo yaseChina, uthe ukutya ngundoqo ukuze iihagu zitye kakuhle.Ukutya kunyeizongezo zokutyasisiseko sezinto eziphathekayo kunye nesiqinisekiso sobugcisa soshishino lweehagu zanamhlanje, amanyathelo ayimfuneko ukongeza isondlo sehagu kunye nokuqinisekisa umgangatho wemveliso, kunye nobuchwepheshe obukhuthazwa ngokubanzi kwihlabathi.Itekhnoloji yokufuya, ukusetyenziswa kokutya, umjikelo wokuzala, ubunzima behagu, umgangatho wenyama kunye nokhuseleko lwemveliso yaseTshayina ngokusisiseko ziyafana nezo zase-United States, eJamani, eDenmark kunye namanye amazwe amakhulu ehagu, ngokuhambelana nemigangatho yezizwe ngezizwe kunye norhwebo lokungenisa kunye nokuthumela ngaphandle. imigangatho.

Izongezo zokutya, ezibandakanyaizongezo ezinomsoco, izongezo ngokubanzi kunyeizongezo zeziyobisi, ibe nefuthe elincinci kwisondlo.Ukutya okuqhelekileyo kwesintu kunokusombulula kuphela ingxaki "yokuhlutha" kweehagu, kwaye izongezo zesondlo zidla ngokutya i-amino acids kunye neevithamini zebakala, nto leyo ukusombulula ingxaki "yokutya kakuhle" kweehagu.Ukongeza umlinganiselo ofanelekileyo wezongezo zamachiza kwisondlo kunokuthintela ngokufanelekileyo kwaye ulawule izifo eziqhelekileyo nezininzi zeehagu.Ngokuphumeza ixesha lokurhoxiswa kweziyobisi kwinqanaba lokutyisa, iintsalela zeziyobisi kwihagu zinokulawulwa kuluhlu olungenabungozi.Ukongeza i-antioxidants kunye nezinye izongezelelo eziqhelekileyo ekutyeni, uninzi lwazo zixhaphake kunye nezongezo kwishishini lokutya, zezenqanaba lokutya, kwaye azinabungozi ekukhuleni kweehagu okanye umgangatho wehagu.

Urhulumente uyakwalela ngokucacileyo ukongeza i-phenobarbital kunye nezinye iziyobisi ezithobayo kunye ne-anticonvulsant kwisondlo.Akuyomfuneko ukongeza iipilisi zokulala ukuze iihagu zilale ngakumbi, zihambe kancinci kwaye zikhule ngokukhawuleza, kuba umsebenzi weehagu ezibanjiweyo zincinci kakhulu, ngoko ke i-sedative ayidingeki.I-Urea, i-Arsenic Preparation kunye nobhedu zivumelekile ukuba zongezwe kwisondlo, kodwa zonke zinemiqathango ehambelanayo ethintelayo kwaye akufanele isetyenziswe ngokuthanda.IUrea luhlobo lwesichumiso senitrogen ephezulu.Ukuba umlinganiselo omncinci we-urea usetyenziswa kwizinto ezetyisayo ezifana neenkomo kunye neegusha, unokubola nge-urease ekhutshwa yi-rumen microorganisms yezilwanyana ezetyisayo, kwaye ke inokufunxwa kwaye yetyiswe ngokudibanisa iprotheni.Iihagu azina rumen kwaphela, ngoko ke kunzima ukusebenzisa initrogen kwi urea.Ukuba idosi inkulu kakhulu, inokukhokelela kwityhefu nokufa kweehagu.Ngokubhekiselele kwisiphumo sokongeza i-copper, ukongeza kuphela inani elifanelekileyo lobhedu ekutyeni kunokukhuthaza ukukhula kweehagu.Umgangatho okhethekileyo wokongeza umlinganiselo ofanelekileyo wobhedu kukuba inani lezongeziweyo zobhedu kwi-1000 kg yokutya akufanele lidlule i-200 g.

Umbuzo 2: zingakhula njani iihagu ukuya kuma-200-300 Jin emva kweenyanga ezi-6?

Umgangatho wehagu kunye nobuninzi, ukuzala kwenzululwazi ngundoqo.

UWang Lixian, umphandi kwiziko laseBeijing lokufuywa kwezilwanyana kunye namayeza ezilwanyana kwiZiko laseTshayina lezeNzululwazi kwezoLimo, uthe ukufuya iihagu zenzululwazi kunokuqinisekisa zombini umgangatho kunye nobuninzi.Okwangoku, umjikelo oqhelekileyo wokuzala kweehagu ngokuqhelekileyo ziintsuku ezingama-150-180.Izizathu eziphambili zokukhula ngokukhawuleza kunye nomjikelezo omfutshane wokutyeba kweehagu "zithathu ezilungileyo": ihagu elungileyo, ukutya okulungileyo kunye nesangqa esilungileyo, oko kukuthi, uhlobo oluhle lwehagu,ukutya okukhuselekileyokunye nemekobume yokufuya ephuculweyo.Imveliso yeehagu zorhwebo ikakhulu yi ternary hybrid ye Duroc, Landrace kunye neehagu ezinkulu ezimhlophe.Yinto eqhelekileyo ukuba ezi hagu zodidi oluphezulu zithengiswe malunga neentsuku ezingama-160.Ixesha lokuthengisa iihagu ezingcono zangaphandle lifutshane.Ixesha lokutyeba lokuzalanisa iihagu kunye neentlobo zendawo lide, kwaye ixesha lokuzala liyi-180-200 iintsuku.

Kumanqanaba ahlukeneyo okutyeba phambi kokuxhelwa kweehagu, idosi yesondlo yahlukile, kwaye idosi yesondlo iyonke imalunga nama-300 kg.Umjikelo wokukhula kweehagu uzakunyuswa ngenyanga enye ubuncinci ukuba azityiswa ngokutya kwaye zityiswa kuphela ngokutya kweehagu zesintu okufana nee cereals ezirhabaxa kunye nengca yehagu.Ukuphuhliswa nokusetyenziswa kwezongezo zokutya zale mihla ziphucula kakhulu izinga lokuguqulwa kokutya, ukunciphisa iindleko zemveliso yeehagu, kwaye kubeke isiseko esiluqilima senzululwazi kushishino lweehagu ukufumana inzuzo entle kwezentlalo nezoqoqosho.Kuqikelelwa ukuba ngokusetyenziswa kwenzululwazi yezondlo zala maxesha kunye nobuchwepheshe, izinga loguqulo lokutya olungumgubo e-China linyuke kakhulu, kwaye izinga legalelo lezenzululwazi nobuchwepheshe ekufuyweni kwezilwanyana liye ladlula kuma-40%.Izinga lokuguqulwa kokutya kwehagu olungumgubo linyukile ukusuka ku-4 ∶ 1 ukuya ku-3 ∶ 1. Ngaphambili, bekuthatha unyaka omnye ukukhulisa ihagu, kodwa ngoku ingathengiswa kwiinyanga ezintandathu, nto leyo engenakwahlulwa kwisondlo esilungeleleneyo kunye nobuchwepheshe bokuzala. inkqubela.

UWang Lixian uthe ishishini lehagu langoku elibonakala ngokuzala kweehagu ezinkulu likhula ngokukhawuleza, kwaye ingqikelelo yokuzala kunye nenqanaba lolawulo lihlala liphucuka.Ngokuphucula indawo yokuzala kunye nokuphumeza unyango olungenabungozi bomgquba wemfuyo, iingxaki zezifo eziphambili zendyikityha kunye neentsalela ze-antibiotic zaye zasonjululwa ngokuthe ngcembe.Umjikelo wokukhula kweehagu wacuthwa kancinane, kwaye ubunzima behagu nganye babumalunga nama-200 kg.