Ika maʻi ʻeha

Nā hiʻohiʻona etiological:

1. Nā ʻano a me ka hoʻokaʻawale ʻana

ʻO ka maʻi maʻi cystic infectious no ka ʻohana maʻi virus RNA ʻāpana ʻelua ʻāpana ʻelua a me ka maʻi maʻi RNA ʻāpana pālua pālua. Loaʻa iā ia nā serotype ʻelua, ʻo ia hoʻi ka serotype I (kaʻi i loaʻa i ka moa) a me ka serotype II (ke kumu i loaʻa i ka turkey). . I waena o lākou, ʻokoʻa ka virulence o nā serotype I strains.

2. Ka hoʻomāhuahua ʻana o nā maʻi maʻi

Hiki i ka maʻi maʻi ke ulu a hana hou ma luna o nā embryos moa. E pepehi ia i nā embryos moa 3-5 mau lā ma hope o ka hoʻokomo ʻia ʻana i loko o ka membrane chorioallantoic. ʻO ia ka mea e hoʻoulu ai i ka edema ma luna o nā embryos moa a pau, ka ʻāʻī a me ke koko e like me ke kiko ma ke poʻo a me nā manamana wāwae, a me ka necrosis mottled o ke ake.

3. Kūʻē

ʻO ka maʻi maʻi he kūpaʻa kūʻokoʻa, kūpaʻa māmā, kūpaʻa i ka maloʻo mau a me ka hoʻoheheʻe ʻana, a kū i ka trypsin, chloroform, a me ka etera. Loaʻa iā ia ka hoʻomanawanui ikaika i ka wela a hiki ke ola ma 56 ° C no 5 mau hola a me 60 ° C no 30 mau minuke; hiki ke ola i ka ma'i ma'i i loko o ka hale moa i poke no 100 la. Paʻa ka maʻi i nā disinfectants e like me ka peracetic acid, sodium hypochlorite, ka pauka bleaching a me ka hoʻomākaukau iodine me nā ʻano disinfection maʻamau, a hiki ke hoʻopau ʻia ka maʻi i ka manawa pōkole.

4. Hemagglutination

ʻAʻole hiki i ka maʻi ke hoʻohui i nā keʻena koko ʻulaʻula o nā moa a me nā holoholona ʻē aʻe he nui.