{"id":4441,"date":"2021-08-17T12:15:39","date_gmt":"2021-08-17T05:15:39","guid":{"rendered":"https:\/\/apanano.com\/?p=4441"},"modified":"2023-02-24T17:10:45","modified_gmt":"2023-02-24T10:10:45","slug":"buoc-dot-pha-trong-nghien-cuu-ve-benh-tilv-o-ca-ro-phi-nuoi","status":"publish","type":"post","link":"https:\/\/apanano.vn\/en\/news\/buoc-dot-pha-trong-nghien-cuu-ve-benh-tilv-o-ca-ro-phi-nuoi\/","title":{"rendered":"B\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong nghi\u00ean c\u1ee9u v\u1ec1 b\u1ec7nh TiLV \u1edf C\u00e1 R\u00f4 Phi nu\u00f4i"},"content":{"rendered":"

Kh\u1ea3 n\u0103ng lai t\u1ea1o c\u00e1 r\u00f4 phi c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng virus TiLV<\/strong> g\u00e2y b\u1ec7nh \u1edf c\u00e1c lo\u00e0i c\u00e1 r\u00f4 phi nu\u00f4i \u0111ang ti\u1ebfn g\u1ea7n h\u01a1n m\u1ed9t b\u01b0\u1edbc, nh\u1edd m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong nghi\u00ean c\u1ee9u b\u1ed9 gien.<\/em><\/p><\/blockquote>\n

M\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi do Vi\u1ec7n Roslin v\u00e0 WorldFish d\u1eabn \u0111\u1ea7u \u0111\u00e3 ph\u00e1t hi\u1ec7n ra r\u1eb1ng m\u1ed9t khu v\u1ef1c c\u1ee5 th\u1ec3 trong b\u1ed9 gien c\u1ee7a c\u00e1 r\u00f4 phi v\u1eb1n – lo\u00e0i th\u1ee7y s\u1ea3n nu\u00f4i quan tr\u1ecdng tr\u1ecb gi\u00e1 g\u1ea7n 10 t\u1ef7 USD tr\u00ean to\u00e0n c\u1ea7u – c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 t\u1eed vong trong th\u1eddi gian b\u00f9ng ph\u00e1t d\u1ecbch TiLV<\/a>.<\/p>\n

TiLV l\u00e0 g\u00ec?<\/strong> Virus Tilapia Lake (Tilapia Lake Virus, TiLV) l\u00e0 m\u1ed9t virut RNA m\u1edbi gi\u1ed1ng Orthomyxovirus; \u0111\u00e3 \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o l\u00e0 m\u1ed9t virus m\u1edbi xu\u1ea5t hi\u1ec7n g\u00e2y c\u00e1c tri\u1ec7u ch\u1ee9ng v\u1ec1 gan \u1edf c\u00e1 r\u00f4 phi t\u1ea1i Israel, Ecuador, Colombia v\u00e0 Ai C\u1eadp (Ferguson v\u00e0 c\u1ed9ng s\u1ef1, 2014; Eyngor v\u00e0 c\u1ed9ng s\u1ef1, 2014; Bacharach v\u00e0 c\u1ed9ng s\u1ef1, 2016; Del-Pozo v\u00e0 c\u1ed9ng s\u1ef1, 2017; Fathi v\u00e0 c\u1ed9ng s\u1ef1, 2017). B\u1ec7nh n\u00e0y g\u00e2y ch\u1ebft v\u1edbi t\u1ef7 l\u1ec7 l\u1edbn l\u00ean \u0111\u1ebfn 90% \u1edf c\u00e1 r\u00f4 phi nu\u00f4i v\u00e0 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n \u0111\u1ed1i v\u1edbi nu\u00f4i c\u00e1 r\u00f4 phi to\u00e0n c\u1ea7u (Eyngor v\u00e0 c\u1ed9ng s\u1ef1, 2014).<\/em><\/p><\/blockquote>\n

H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng c\u00e1 c\u00f3 c\u00e1c bi\u1ebfn th\u1ec3 di truy\u1ec1n c\u1ee5 th\u1ec3 trong khu v\u1ef1c n\u00e0y v\u1ec1 c\u01a1 b\u1ea3n \u00edt c\u00f3 kh\u1ea3 n\u0103ng ch\u1ebft trong \u0111\u1ee3t b\u00f9ng ph\u00e1t vi-r\u00fat h\u01a1n so v\u1edbi c\u00e1 kh\u00f4ng c\u00f3 c\u00e1c bi\u1ebfn th\u1ec3 n\u00e0y. C\u00e1c nh\u00e0 khoa h\u1ecdc quan s\u00e1t th\u1ea5y t\u1ef7 l\u1ec7 s\u1ed1ng s\u00f3t \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n kho\u1ea3ng m\u1ed9t ph\u1ea7n ba.g c\u00e1ch ch\u1ecdn c\u00e1 b\u1ed1 m\u1eb9 \u0111\u1ec3 lai t\u1ea1o d\u1ef1a tr\u00ean c\u00e1c bi\u1ebfn th\u1ec3 n\u00e0y,<\/p>\n

B\u1eb1ng c\u00e1ch ch\u1ecdn c\u00e1 b\u1ed1 m\u1eb9 \u0111\u1ec3 lai t\u1ea1o d\u1ef1a tr\u00ean c\u00e1c bi\u1ebfn th\u1ec3 n\u00e0y, c\u00e1c d\u00f2ng c\u00e1 r\u00f4 phi c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu b\u1ea9m sinh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n. \u0110i\u1ec1u n\u00e0y s\u1ebd l\u00e0m gi\u1ea3m s\u1ed1 l\u1ea7n b\u00f9ng ph\u00e1t v\u00e0 t\u1ef7 l\u1ec7 t\u1eed vong do TiLV, m\u1ed9t trong nh\u1eefng m\u1ed1i \u0111e d\u1ecda l\u1edbn nh\u1ea5t \u0111\u1ed1i v\u1edbi ngh\u1ec1 nu\u00f4i c\u00e1 r\u00f4 phi, v\u1edbi t\u1ef7 l\u1ec7 t\u1eed vong l\u00ean \u0111\u1ebfn 90% v\u00e0 ch\u01b0a c\u00f3 v\u1eafc-xin.<\/p>\n

\"\"
C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e2n t\u00edch b\u1ed9 gien c\u1ee7a g\u1ea7n 1.000 con c\u00e1 r\u00f4 phi t\u1eeb m\u1ed9t ao \u0111\u00e3 tr\u1ea3i qua \u0111\u1ee3t b\u00f9ng ph\u00e1t TiLV.<\/figcaption><\/figure>\n

\u201cTiLV c\u00f3 th\u1ec3 g\u00e2y ch\u1ebft h\u00e0ng lo\u1ea1t cho c\u00e1 r\u00f4 phi v\u1eb1n nu\u00f4i, g\u00e2y t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c l\u1edbn \u0111\u1ebfn ng\u01b0\u1eddi nu\u00f4i v\u00e0 an ninh l\u01b0\u01a1ng th\u1ef1c \u1edf nhi\u1ec1u qu\u1ed1c gia. K\u1ebft qu\u1ea3 c\u1ee7a ch\u00fang t\u00f4i cung c\u1ea5p m\u1ed9t l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng \u0111\u1ec3 l\u1ef1a ch\u1ecdn c\u00e1 c\u00f3 kh\u1ea3 n\u0103ng kh\u00e1ng TiLV di truy\u1ec1n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, v\u1edbi ti\u1ec1m n\u0103ng ch\u00ednh gi\u00fap \u0111\u1ed1i ph\u00f3 v\u1edbi lo\u1ea1i virus t\u00e0n ph\u00e1 n\u00e0y\u201d<\/em>, Gi\u00e1o s\u01b0 Ross Houston, t\u1eeb Vi\u1ec7n Roslin, cho bi\u1ebft trong m\u1ed9t th\u00f4ng c\u00e1o b\u00e1o ch\u00ed.<\/p>\n

\u201cC\u00e1c nh\u00e0 lai t\u1ea1o s\u1ebd c\u00f3 th\u1ec3 ch\u1ecdn ra nh\u1eefng \u1ee9ng c\u1eed vi\u00ean t\u1ed1t nh\u1ea5t \u0111\u1ec3 kh\u00e1ng TiLV b\u1eb1ng c\u00e1ch ch\u1ecdn l\u1ecdc c\u00f3 s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a marker, t\u1ea1o ra c\u00e1c d\u00f2ng c\u00e1 r\u00f4 phi v\u1eb1n m\u1edbi v\u1edbi s\u1ee9c \u0111\u1ec1 kh\u00e1ng \u0111\u01b0\u1ee3c n\u00e2ng cao. Th\u1eadt th\u00fa v\u1ecb, ch\u00fang t\u00f4i c\u0169ng cho th\u1ea5y r\u1eb1ng vi\u1ec7c l\u1ef1a ch\u1ecdn n\u00e0y s\u1ebd kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c n\u00e0o \u0111\u1ebfn tr\u1ecdng l\u01b0\u1ee3ng thu ho\u1ea1ch c\u1ee7a c\u00e1\u201d<\/em>, \u0111\u1ed3ng nghi\u1ec7p c\u1ee7a \u00f4ng, Ti\u1ebfn s\u0129 Agustin Barria n\u00f3i th\u00eam.<\/p>\n

Trong nghi\u00ean c\u1ee9u, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ph\u00e2n t\u00edch b\u1ed9 gien c\u1ee7a g\u1ea7n 1.000 con c\u00e1 t\u1eeb m\u1ed9t ao \u0111\u00e3 tr\u1ea3i qua \u0111\u1ee3t b\u00f9ng ph\u00e1t TiLV. So s\u00e1nh b\u1ed9 gien c\u1ee7a c\u00e1 s\u1ed1ng s\u00f3t sau \u0111\u1ee3t b\u00f9ng ph\u00e1t d\u1ecbch v\u1edbi c\u00e1 \u0111\u00e3 ch\u1ebft gi\u00fap c\u00e1c nh\u00e0 khoa h\u1ecdc t\u00ecm ra v\u00f9ng trong b\u1ed9 gien c\u00f3 ch\u1ee9a c\u00e1c bi\u1ebfn th\u1ec3 li\u00ean quan \u0111\u1ebfn s\u1ef1 s\u1ed1ng s\u00f3t.\u00a0C\u00e1c nh\u00e0 khoa h\u1ecdc nh\u1eadn th\u1ea5y, t\u1ef7 l\u1ec7 s\u1ed1ng trung b\u00ecnh c\u1ee7a c\u00e1 r\u00f4 phi v\u1edbi c\u00e1c bi\u1ebfn th\u1ec3 thu\u1eadn l\u1ee3i cao h\u01a1n 32% so v\u1edbi c\u00e1 kh\u00f4ng c\u00f3 bi\u1ebfn th\u1ec3 n\u00e0o.<\/p>\n

\u201cTh\u00f4ng tin n\u00e0y s\u1ebd l\u00e0 v\u00f4 gi\u00e1 trong vi\u1ec7c t\u1ea1o ra gi\u1ed1ng c\u00e1 r\u00f4 phi c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u00f3 th\u1ec3 gi\u00fap duy tr\u00ec s\u1ea3n l\u01b0\u1ee3ng c\u00e1 tr\u01b0\u1edbc nguy c\u01a1 d\u1ecbch b\u1ec7nh ng\u00e0y c\u00e0ng gia t\u0103ng \u0111e d\u1ecda an ninh l\u01b0\u01a1ng th\u1ef1c \u1edf nhi\u1ec1u n\u01a1i tr\u00ean th\u1ebf gi\u1edbi. WorldFish c\u00f3 k\u1ebf ho\u1ea1ch k\u1ebft h\u1ee3p kh\u1ea3 n\u0103ng kh\u00e1ng TiLV trong c\u00e1c d\u00f2ng c\u00e1 r\u00f4 phi nu\u00f4i \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn v\u1ec1 m\u1eb7t di truy\u1ec1n (GIFT) m\u00e0 ch\u00fang t\u00f4i \u0111ang ph\u00e1t tri\u1ec3n\u201d<\/em>, Gi\u00e1o s\u01b0 John Benzie, t\u1eeb WorldFish cho bi\u1ebft.<\/p>\n\n

Nghi\u00ean c\u1ee9u \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Heredity, \u0111\u01b0\u1ee3c t\u00e0i tr\u1ee3 b\u1edfi Ch\u01b0\u01a1ng tr\u00ecnh Nghi\u00ean c\u1ee9u CGIAR v\u1ec1 H\u1ec7 th\u1ed1ng Th\u1ef1c ph\u1ea9m N\u00f4ng nghi\u1ec7p C\u00e1 (FISH) v\u00e0 H\u1ed9i \u0111\u1ed3ng Nghi\u00ean c\u1ee9u Khoa h\u1ecdc Sinh h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Sinh h\u1ecdc, m\u1ed9t ph\u1ea7n c\u1ee7a Ch\u01b0\u01a1ng tr\u00ecnh Nghi\u00ean c\u1ee9u v\u00e0 \u0110\u1ed5i m\u1edbi c\u1ee7a V\u01b0\u01a1ng qu\u1ed1c Anh.<\/p>\n

H.T (d\u1ecbch t\u1eeb Thefishsite)<\/em><\/p>\n

\u00a0<\/div>\r\n