Newcastle Kab Mob

1 Txheej txheem cej luam

Tus kab mob Newcastle, tseem hu ua Asian chicken plague, yog ib qho mob hnyav, kis tau zoo heev thiab kis kab mob hnyav ntawm qaib thiab qaib cov txwv los ntawm paramyxovirus.

Cov tsos mob ntawm kev kuaj mob: kev nyuaj siab, tsis qab los noj mov, ua pa nyuaj, cov quav ntsuab xoob, thiab cov tsos mob ntawm lub cev.

Pathological anatomy: liab, o, los ntshav, thiab necrosis ntawm plab hnyuv mucosa.

2. Etiological yam ntxwv

(1) Cov yam ntxwv thiab kev faib tawm

Chicken Newcastle disease virus (NDV) belongs rau genus Paramyxovirus hauv tsev neeg Paramyxoviridae.

(2) Daim ntawv

Cov kab mob loj hlob tuaj yog spherical, nrog txoj kab uas hla ntawm 100 ~ 300nm.

(3) Hemagglutination

NDV muaj hemagglutinin, uas agglutinates tib neeg, nqaij qaib, thiab nas cov qe ntshav liab.

(4) Cov khoom uas twb muaj lawm

Cov kua dej hauv lub cev, tso zis, thiab tso tawm ntawm cov nqaij qaib thiab cov khoom nruab nrog cev muaj cov kab mob.Ntawm lawv, lub hlwb, tus po, thiab ntsws muaj cov kab mob ntau tshaj plaws, thiab lawv nyob hauv cov pob txha mus ntev tshaj plaws.

(5) Kev loj hlob

Tus kab mob no tuaj yeem nthuav dav hauv chorioallantoic kab noj hniav ntawm 9-11-hnub-laus qaib embryos, thiab tuaj yeem loj hlob thiab tsim tawm ntawm qaib embryo fibroblasts thiab tsim cov cell fission.

(6) Kev tiv thaiv

Inactivates nyob rau hauv 30 feeb nyob rau hauv tshav ntuj.

Ciaj sia nyob hauv tsev cog khoom rau 1 lub lis piam

Kub: 56 ° C rau 30 ~ 90 feeb

Ciaj sia nyob ntawm 4 ℃ rau 1 xyoo

Ciaj sia nyob ntawm -20 ° C rau ntau tshaj kaum xyoo

Kev niaj hnub ntau ntawm cov tshuaj tua kab mob tua NDV sai.

3. Cov yam ntxwv ntawm kev kis kab mob

(1) Cov tsiaj raug mob

Qaib, pigeons, pheasants, qaib ntxhw, peacocks, partridges, quails, waterfowl, geese

Conjunctivitis tshwm sim hauv cov neeg tom qab kis kab mob.

(2) Qhov chaw kis kab mob

Tus kab mob nqa qaib

(3) Kev xa tawm raws

Cov kab mob ua pa thiab kab mob hauv plab, kev tso tawm, cov kab mob kis kab mob, dej haus, hauv av, thiab cov cuab yeej raug kis los ntawm txoj hnyuv;cov kab mob uas nqa cov plua plav thiab cov tee dej nkag mus rau hauv lub ntsws.

(4) Tus qauv ntawm qhov xwm txheej

Nws tshwm sim txhua xyoo puag ncig, feem ntau nyob rau lub caij ntuj no thiab caij nplooj ntoos hlav.Kev mob nkeeg thiab kev tuag ntawm cov nqaij qaib hluas yog siab dua cov nqaij qaib laus.