ʻO ka maʻi ʻo Newcastle

1 Nānā Haʻawina

ʻO ka maʻi ʻo Newcastle, ʻike ʻia hoʻi ʻo ka maʻi moa ʻAsia, he maʻi lele nui, lele nui a koʻikoʻi o nā moa a me nā turkey i hoʻokumu ʻia e ka paramyxovirus.

Nā hiʻohiʻona diagnostical: ke kaumaha, ka pau ʻana o ka ʻai, ka pilikia o ka hanu ʻana, nā ʻōmaʻomaʻo ʻōmaʻomaʻo, a me nā hōʻailona ʻōnaehana.

Pathological anatomy: ʻulaʻula, pehu, kahe koko, a me ka necrosis o ka mucosa digestive tract.

2. Nā hiʻohiʻona etiological

(1) Nā ʻano a me ka hoʻokaʻawale ʻana

ʻO ka maʻi maʻi Newcastle Chicken (NDV) no ka genus Paramyxovirus ma ka ʻohana Paramyxoviridae.

(2) Puka

He spherical nā ʻāpana virus makua, me ke anawaena o 100~300nm.

(3) Hemagglutination

Loaʻa i ka NDV ka hemagglutinin, ka mea e hōʻuluʻulu i ke koko ʻulaʻula kanaka, moa, a me ka ʻiole.

(4) Nā ʻāpana e kū nei

Aia i loko o nā wai kino, nā mea huna, a me nā hoʻokuʻu ʻia o nā ʻiʻo moa a me nā ʻāpana i nā maʻi maʻi. Ma waena o lākou, ʻo ka lolo, ka spleen, a me ka māmā ka nui o nā maʻi maʻi, a noho lākou i loko o ka iwi iwi no ka manawa lōʻihi loa.

(5) Hoʻonui

Hiki i ka ma'i ke ho'onui i loko o ka chorioallantoic cavity o 9-11-lā-ka-kahiko moa embryos, a hiki ke ulu a hana hou ma luna o ka moa embryo fibroblasts a hana i ka cell fission.

(6) Kūʻē

Inactivs i loko o 30 minuke ma lalo o ka lā.

Ola i loko o ka hale kōmaena no 1 pule

Ka wela: 56°C no 30~90 minuke

Ola ma 4 ℃ no 1 makahiki

Ke ola ma -20°C no nā makahiki he ʻumi

ʻO ka hoʻopaʻa ʻana maʻamau o nā disinfectants maʻamau e pepehi koke i ka NDV.

3. Nā hiʻohiʻona epidemiological

(1) Nā holoholona hiki ke pilikia

ʻO nā moa, nā nūnū, nā pheasants, nā turkey, nā peʻa, nā manu, nā selu, nā moa wai, nā kuʻi.

Loaʻa ka conjunctivitis i nā kānaka ma hope o ka maʻi.

(2) Puna o ka ma'i

Ka moa lawe maʻi virus

(3) Nā ala hoʻouna

Hoʻopili ʻia nā maʻi o ka ʻōpū hanu a me ka digestive tract, excrement, nā meaʻai i hoʻopaʻa ʻia e ka maʻi virus, ka wai inu, ka lepo, a me nā mea hana i ka maʻi ma o ka digestive tract; komo ka lepo lawe maʻi virus a me nā droplets i ka ʻōpū hanu.

(4) Mahele o ka hanana

Loaʻa ia i ka makahiki a puni, ka hapa nui i ka hoʻoilo a me ka puna. ʻOi aku ka nui o ka maʻi a me ka make o nā moa ʻōpio ma mua o nā moa kahiko.