{"id":2442,"date":"2024-10-13T11:20:35","date_gmt":"2024-10-13T11:20:35","guid":{"rendered":"https:\/\/mtnongnghiep.com\/?p=2442"},"modified":"2024-10-13T11:20:40","modified_gmt":"2024-10-13T11:20:40","slug":"nuoi-tom-giam-phat-thai-giai-phap-xanh-cho-nganh-thuy-san","status":"publish","type":"post","link":"https:\/\/mtnongnghiep.com\/index.php\/2024\/10\/13\/nuoi-tom-giam-phat-thai-giai-phap-xanh-cho-nganh-thuy-san\/","title":{"rendered":"Nu\u00f4i t\u00f4m gi\u1ea3m ph\u00e1t th\u1ea3i: gi\u1ea3i ph\u00e1p xanh cho ng\u00e0nh th\u1ee7y s\u1ea3n"},"content":{"rendered":"\n

S\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a nu\u00f4i t\u00f4m \u0111\u1ed3ng ngh\u0129a v\u1edbi \u00e1p l\u1ef1c m\u00f4i tr\u01b0\u1eddng ng\u00e0y c\u00e0ng t\u0103ng. \u0110\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi th\u00e1ch th\u1ee9c tr\u00ean, m\u00f4 h\u00ecnh nu\u00f4i t\u00f4m gi\u1ea3m ph\u00e1t th\u1ea3i \u0111\u01b0\u1ee3c xem l\u00e0 gi\u1ea3i ph\u00e1p b\u1ec1n v\u1eefng v\u00e0 hi\u1ec7u qu\u1ea3. M\u00f4 h\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 t\u1ed1i \u01b0u h\u00f3a s\u1ea3n l\u01b0\u1ee3ng m\u00e0 c\u00f2n th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/strong><\/p>\n\n\n\n

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Nu\u00f4i t\u00f4m gi\u1ea3m ph\u00e1t th\u1ea3i \u0111\u01b0\u1ee3c xem l\u00e0 gi\u1ea3i ph\u00e1p b\u1ec1n v\u1eefng v\u00e0 hi\u1ec7u qu\u1ea3<\/em><\/figcaption><\/figure>\n\n\n\n

Nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t th\u1ea5p b\u1eb1ng s\u1ee9c t\u1ea3i ao<\/strong><\/p>\n\n\n\n

M\u00f4 h\u00ecnh nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t th\u1ea5p b\u1eb1ng s\u1ee9c t\u1ea3i ao \u0111ang n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p ti\u1ec1m n\u0103ng, mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o gi\u1eefa s\u1ea3n l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng. Tr\u1ecdng t\u00e2m c\u1ee7a m\u00f4 h\u00ecnh n\u00e0y l\u00e0 t\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng t\u1ef1 l\u00e0m s\u1ea1ch c\u1ee7a ao nu\u00f4i, gi\u1ea3m l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i ra m\u00f4i tr\u01b0\u1eddng v\u00e0 duy tr\u00ec m\u1ed9t h\u1ec7 sinh th\u00e1i c\u00e2n b\u1eb1ng.<\/p>\n\n\n\n

Trong m\u00f4 h\u00ecnh n\u00e0y, l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i ph\u00e1t ra t\u1eeb ho\u1ea1t \u0111\u1ed9ng nu\u00f4i t\u00f4m \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u0111\u1ec3 kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng t\u1ef1 l\u00e0m s\u1ea1ch c\u1ee7a ao trong v\u00f2ng 24 gi\u1edd. V\u1edbi m\u1eadt \u0111\u1ed9 nu\u00f4i t\u1eeb 20-24 con\/m\u00b2, m\u00f4 h\u00ecnh gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a \u00e1p l\u1ef1c l\u00ean h\u1ec7 sinh th\u00e1i ao, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng cho t\u00f4m ph\u00e1t tri\u1ec3n kh\u1ecfe m\u1ea1nh. S\u1ea3n l\u01b0\u1ee3ng \u01b0\u1edbc t\u00ednh \u0111\u1ea1t t\u1eeb 3-10 t\u1ea5n\/ha, kh\u00f4ng ch\u1ec9 duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00f2n \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u00f4m t\u1ed1i \u01b0u. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u1edf Ecuador, n\u01a1i m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n\n\n\n

M\u1ed9t y\u1ebfu t\u1ed1 then ch\u1ed1t kh\u00e1c c\u1ee7a m\u00f4 h\u00ecnh l\u00e0 s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a h\u1ec7 th\u1ed1ng cung c\u1ea5p kh\u00ed oxy hi\u1ec7u qu\u1ea3, \u0111\u1ea3m b\u1ea3o m\u1ee9c \u0111\u1ed9 oxy h\u00f2a tan trong n\u01b0\u1edbc lu\u00f4n \u0111\u1ea1t m\u1ee9c t\u1ed1i \u01b0u. S\u1ef1 qu\u1ea3n l\u00fd ch\u1ea5t th\u1ea3i hi\u1ec7u qu\u1ea3 trong m\u00f4 h\u00ecnh n\u00e0y gi\u1eef cho l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 s\u1ee9c t\u1ea3i t\u1ef1 l\u00e0m s\u1ea1ch c\u1ee7a ao, ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i, hi\u1ec7n t\u01b0\u1ee3ng ph\u00fa d\u01b0\u1ee1ng v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e2n b\u1eb1ng sinh th\u00e1i.<\/p>\n\n\n\n

M\u00f4 h\u00ecnh nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t th\u1ea5p b\u1eb1ng s\u1ee9c t\u1ea3i ao ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 hi\u1ec7n di\u1ec7n v\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c sinh v\u1eadt chuy\u1ec3n h\u00f3a, bao g\u1ed3m t\u1ea3o, vi khu\u1ea9n d\u1ecb d\u01b0\u1ee1ng v\u00e0 vi khu\u1ea9n t\u1ef1 d\u01b0\u1ee1ng.<\/p>\n\n\n\n

Nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao b\u1eb1ng s\u1ee9c t\u1ea3i ao<\/strong><\/p>\n\n\n\n

M\u00f4 h\u00ecnh nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao d\u1ef1a v\u00e0o s\u1ee9c t\u1ea3i ao k\u1ebft h\u1ee3p v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p h\u1ed7 tr\u1ee3 \u0111ang ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn, \u0111\u1eb7c bi\u1ec7t l\u00e0 t\u1ea1i Th\u00e1i Lan. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1eadp trung v\u00e0o vi\u1ec7c ki\u1ec3m so\u00e1t v\u00e0 c\u00e2n b\u1eb1ng h\u1ec7 sinh th\u00e1i ao nu\u00f4i, v\u1edbi tr\u1ecdng t\u00e2m l\u00e0 h\u1ec7 vi sinh v\u1eadt, nh\u1eb1m x\u1eed l\u00fd ch\u1ea5t th\u1ea3i v\u00e0 cung c\u1ea5p dinh d\u01b0\u1ee1ng hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y l\u00e0 l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i ph\u00e1t ra b\u1eb1ng s\u1ee9c t\u1ea3o t\u1ef1 l\u00e0m s\u1ea1ch ao trong v\u00f2ng 24 gi\u1edd, b\u1ed5 sung dinh d\u01b0\u1ee1ng ph\u00e1t tri\u1ec3n vi sinh n\u1ed9i t\u1ea1i hay bioflocs ho\u1eb7c heterotrophic. Nh\u1edd v\u00e0o h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc hi\u1ec7u qu\u1ea3 v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng gi\u1ed1ng t\u00f4m s\u1ea1ch b\u1ec7nh, ng\u01b0\u1eddi nu\u00f4i c\u00f3 th\u1ec3 nu\u00f4i li\u00ean t\u1ee5c nhi\u1ec1u v\u1ee5 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i c\u1ea3i t\u1ea1o ao.<\/p>\n\n\n\n

B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng h\u1ec7 vi sinh v\u1eadt \u0111\u1ec3 x\u1eed l\u00fd ch\u1ea5t th\u1ea3i, cung c\u1ea5p dinh d\u01b0\u1ee1ng, gi\u1ea3m b\u1edbt chi ph\u00ed th\u1ee9c \u0103n v\u00e0 h\u00f3a ch\u1ea5t. Gi\u1ea3m thi\u1ec3u vi\u1ec7c th\u1ea3i ch\u1ea5t h\u1eefu c\u01a1 v\u00e0 ch\u1ea5t dinh d\u01b0\u1ee1ng ra m\u00f4i tr\u01b0\u1eddng, b\u1ea3o v\u1ec7 ngu\u1ed3n n\u01b0\u1edbc xung quanh. M\u00f4i tr\u01b0\u1eddng ao nu\u00f4i \u1ed5n \u0111\u1ecbnh gi\u00fap t\u00f4m ph\u00e1t tri\u1ec3n t\u1ed1t, gi\u1ea3m nguy c\u01a1 b\u1ec7nh t\u1eadt v\u00e0 t\u0103ng n\u0103ng su\u1ea5t.<\/p>\n\n\n\n

M\u00f4 h\u00ecnh nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao d\u1ef1a v\u00e0o s\u1ee9c t\u1ea3i ao v\u00e0 h\u1ed7 tr\u1ee3 vi sinh v\u1eadt \u0111ang m\u1edf ra m\u1ed9t b\u01b0\u1edbc ti\u1ebfn l\u1edbn trong ng\u00e0nh nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n. V\u1edbi nh\u1eefng l\u1ee3i \u00edch v\u01b0\u1ee3t tr\u1ed9i v\u1ec1 m\u1eb7t kinh t\u1ebf v\u00e0 m\u00f4i tr\u01b0\u1eddng, m\u00f4 h\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 c\u00f3 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n r\u1ed9ng r\u00e3i t\u1ea1i Th\u00e1i Lan m\u00e0 c\u00f2n tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, h\u1ee9a h\u1eb9n s\u1ebd tr\u1edf th\u00e0nh h\u01b0\u1edbng \u0111i \u0111\u1ea7y tri\u1ec3n v\u1ecdng cho ng\u00e0nh t\u00f4m.<\/p>\n\n\n\n

Nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao b\u1eb1ng thay n\u01b0\u1edbc x\u1eed th\u1ea3i<\/strong><\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng m\u00f4 h\u00ecnh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam, d\u1ef1a tr\u00ean vi\u1ec7c thay n\u01b0\u1edbc \u0111\u1ecbnh k\u1ef3 nh\u1eb1m lo\u1ea1i b\u1ecf ch\u1ea5t th\u1ea3i v\u00e0 duy tr\u00ec m\u00f4i tr\u01b0\u1eddng ao nu\u00f4i \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p thay n\u01b0\u1edbc x\u1eed th\u1ea3i ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean t\u1eafc thay th\u1ebf m\u1ed9t ph\u1ea7n n\u01b0\u1edbc trong ao nu\u00f4i \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u1ea5t th\u1ea3i v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Trong v\u00f2ng 24 gi\u1edd, l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i ph\u00e1t ra \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t nh\u1edd v\u00e0o s\u1ee9c t\u1ea3i t\u1ef1 l\u00e0m s\u1ea1ch c\u1ee7a ao v\u00e0 vi\u1ec7c thay n\u01b0\u1edbc \u0111\u1ecbnh k\u1ef3. M\u1eadt \u0111\u1ed9 nu\u00f4i t\u00f4m trong m\u00f4 h\u00ecnh n\u00e0y th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 50-70 t\u1ea5n\/ha, cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u0103ng su\u1ea5t cao.<\/p>\n\n\n\n

Vi\u1ec7c thay n\u01b0\u1edbc \u0111\u1ecbnh k\u1ef3 gi\u00fap duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 gi\u1ea3m thi\u1ec3u nguy c\u01a1 t\u00edch t\u1ee5 ch\u1ea5t th\u1ea3i \u0111\u1ed9c h\u1ea1i. T\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u00f4m, \u0111\u1ed3ng th\u1eddi h\u1ea1n ch\u1ebf r\u1ee7i ro v\u1ec1 b\u1ec7nh t\u1eadt.<\/p>\n\n\n\n

M\u1eb7c d\u00f9 ph\u01b0\u01a1ng ph\u00e1p thay n\u01b0\u1edbc x\u1eed th\u1ea3i mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, nh\u01b0ng c\u0169ng t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c nh\u01b0: ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec7u qu\u1ea3 trong vi\u1ec7c kh\u1eed m\u1eb7n \u0111\u1ed1i v\u1edbi n\u01b0\u1edbc l\u1ee3, \u0111\u1eb7c bi\u1ec7t khi th\u1eddi gian thay n\u01b0\u1edbc k\u00e9o d\u00e0i t\u1eeb 25-40 ng\u00e0y. \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng duy tr\u00ec m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng cho t\u00f4m; vi\u1ec7c thay n\u01b0\u1edbc \u0111\u1ecbnh k\u1ef3 y\u00eau c\u1ea7u kh\u1ed1i l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1edbn, d\u1eabn \u0111\u1ebfn chi ph\u00ed t\u1ed1n k\u00e9m v\u00e0 ngu\u1ed3n n\u01b0\u1edbc d\u1ed3i d\u00e0o, c\u00f3 th\u1ec3 t\u1ea1o \u00e1p l\u1ef1c l\u00ean t\u00e0i nguy\u00ean n\u01b0\u1edbc; n\u1ebfu n\u01b0\u1edbc th\u1ea3i kh\u00f4ng \u0111\u01b0\u1ee3c t\u00e1i s\u1eed d\u1ee5ng ho\u1eb7c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch, vi\u1ec7c thay n\u01b0\u1edbc c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ph\u00e1t sinh kh\u00ed hi\u1ec7u \u1ee9ng nh\u00e0 k\u00ednh, g\u00f3p ph\u1ea7n v\u00e0o bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu.<\/p>\n\n\n\n

\u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a ph\u01b0\u01a1ng ph\u00e1p nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao b\u1eb1ng thay n\u01b0\u1edbc x\u1eed th\u1ea3i, c\u1ea7n thay \u0111\u1ed5i t\u01b0 duy v\u00e0 \u00e1p d\u1ee5ng c\u00e1c gi\u1ea3i ph\u00e1p c\u1ea3i ti\u1ebfn b\u1eb1ng c\u00e1ch xem x\u00e9t vi\u1ec7c t\u00e1i s\u1eed d\u1ee5ng n\u01b0\u1edbc th\u1ea3i qua c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd \u0111\u1ec3 gi\u1ea3m thi\u1ec3u n\u01b0\u1edbc ti\u00eau th\u1ee5 v\u00e0 ph\u00e1t sinh kh\u00ed hi\u1ec7u \u1ee9ng nh\u00e0 k\u00ednh. N\u00e2ng c\u1ea5p c\u00f4ng ngh\u1ec7 trong vi\u1ec7c x\u1eed l\u00fd n\u01b0\u1edbc v\u00e0 qu\u1ea3n l\u00fd ch\u1ea5t th\u1ea3i \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c.<\/p>\n\n\n\n

Nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao tu\u1ea7n ho\u00e0n n\u01b0\u1edbc (RAS)<\/strong><\/p>\n\n\n\n

M\u00f4 h\u00ecnh nu\u00f4i t\u00f4m n\u0103ng su\u1ea5t cao tu\u1ea7n ho\u00e0n n\u01b0\u1edbc \u0111\u01b0\u1ee3c c\u00f4ng ty TNHH Khoa h\u1ecdc nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u00e0 M\u00f4i tr\u01b0\u1eddng SAEN chuy\u1ec3n giao cho nhi\u1ec1u c\u01a1 s\u1edf nu\u00f4i t\u00f4m \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u0103ng su\u1ea5t cao v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t th\u1ea5p. Quy tr\u00ecnh nu\u00f4i bao g\u1ed3m:<\/p>\n\n\n\n

Giai \u0111o\u1ea1n 1: 01 b\u1ec3 \u01b0\u01a1ng khung s\u1eaft l\u00f3t b\u1ea1t HDPE 100m3<\/sup>, 01 tr\u1ed1ng l\u1ecdc lo\u1ea1i drumfilter \u2013 DF100 c\u1ee7a c\u00f4ng ty SAEN v\u1edbi hi\u1ec7u su\u1ea5t l\u1ecdc 100 m3<\/sup>\/gi\u1edd, 01 l\u1ecdc sinh h\u1ecdc v\u1edbi 5m3<\/sup> gi\u00e1 th\u1ec3 c\u00f3 di\u1ec7n t\u00edch \u0111\u1eb7c hi\u1ec7u l\u00e0 800 m2<\/sup>\/m3<\/sup>, 01 m\u00e1y b\u01a1m ch\u00ecm tu\u1ea7n ho\u00e0n hi\u1ec7u Jebao v\u1edbi l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc b\u01a1m 25 m3<\/sup>\/gi\u1edd.<\/p>\n\n\n\n

Giai \u0111o\u1ea1n 2: 01 b\u1ec3 nu\u00f4i khung s\u1eaft l\u00f3t b\u1ea1t HDPE 200m3<\/sup>, 01 tr\u1ed1ng l\u1ecdc lo\u1ea1i drumfilter \u2013 DF100 c\u1ee7a c\u00f4ng ty SAEN v\u1edbi hi\u1ec7u su\u1ea5t l\u1ecdc 100 m3<\/sup>\/gi\u1edd, 01 l\u1ecdc sinh h\u1ecdc v\u1edbi 10m3<\/sup> gi\u00e1 th\u1ec3 c\u00f3 di\u1ec7n t\u00edch \u0111\u1eb7c hi\u1ec7u l\u00e0 800 m2<\/sup>\/m3<\/sup>, 02 m\u00e1y b\u01a1m ch\u00ecm tu\u1ea7n ho\u00e0n hi\u1ec7u Jebao v\u1edbi l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc b\u01a1m 50 m3<\/sup>\/gi\u1edd.<\/p>\n\n\n\n

RAS giai \u0111o\u1ea1n 3: 02 b\u1ec3 nu\u00f4i khung s\u1eaft l\u00f3t b\u1ea1t HDPE 200m3<\/sup>, 01 tr\u1ed1ng l\u1ecdc lo\u1ea1i drumfilter \u2013 DF100 c\u1ee7a c\u00f4ng ty SAEN v\u1edbi hi\u1ec7u su\u1ea5t l\u1ecdc 100 m3<\/sup>\/gi\u1edd, 01 l\u1ecdc sinh h\u1ecdc v\u1edbi 20m3<\/sup> gi\u00e1 th\u1ec3 c\u00f3 di\u1ec7n t\u00edch \u0111\u1eb7c hi\u1ec7u l\u00e0 800 m2<\/sup>\/m3<\/sup>, 01 b\u1ec3 ch\u1ee9a t\u1ea1m 25m3<\/sup>, 02 m\u00e1y b\u01a1m ch\u00ecm tu\u1ea7n ho\u00e0n hi\u1ec7u Jebao v\u1edbi l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc b\u01a1m 50 m3<\/sup>\/gi\u1edd.<\/p>\n\n\n\n

H\u1ec7 th\u1ed1ng RAS gi\u00fap gi\u1ea3m t\u1ef7 l\u1ec7 chuy\u1ec3n h\u00f3a th\u1ee9c \u0103n (FCR), ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 t\u0103ng hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t. M\u1eb7c d\u00f9 y\u00eau c\u1ea7u \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u l\u1edbn, chi ph\u00ed v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c gi\u1ea3m nh\u1edd v\u00e0o vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a s\u1eed d\u1ee5ng th\u1ee9c \u0103n v\u00e0 n\u01b0\u1edbc. Gi\u1ea3m thi\u1ec3u vi\u1ec7c thay n\u01b0\u1edbc v\u00e0 x\u1ea3 th\u1ea3i, b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng v\u00e0 ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean.<\/p>\n\n\n\n

M\u00f4 h\u00ecnh tu\u1ea7n ho\u00e0n t\u00e1i s\u1eed d\u1ee5ng th\u1ea3i<\/strong><\/p>\n\n\n\n

\"\"
S\u01a1 \u0111\u1ed3 th\u1ef1c hi\u1ec7n m\u00f4 h\u00ecnh tu\u1ea7n ho\u00e0n RAS t\u00e1i t\u1ea1o dinh d\u01b0\u1ee1ng kh\u00f4ng x\u1ea3 th\u1ea3i<\/em><\/figcaption><\/figure>\n\n\n\n

M\u00f4 h\u00ecnh n\u00e0y l\u00e0 d\u1ef1 \u00e1n do TS. Nguy\u1ec5n Nh\u1ee9t l\u00e0m ch\u1ee7 nhi\u1ec7m v\u1edbi s\u1ef1 ph\u1ed1i h\u1ee3p v\u1edbi Vi\u1ec7n nghi\u00ean c\u1ee9u Nu\u00f4i tr\u1ed3ng Th\u1ee7y s\u1ea3n II, S\u1edf Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 t\u1ec9nh C\u00e0 Mau v\u00e0 t\u1ed5 ch\u1ee9c Cirad- Ph\u00e1p S\u1edf t\u00e0i tr\u1ee3.<\/p>\n\n\n\n

\u01afu \u0111i\u1ec3m c\u1ee7a m\u00f4 h\u00ecnh n\u00e0y l\u00e0 th\u1ef1c hi\u1ec7n theo c\u00f4ng ngh\u1ec7 nu\u00f4i thu\u1ef7 s\u1ea3n tu\u1ea7n ho\u00e0n (RAS) v\u00e0 chia theo 3 giai \u0111o\u1ea1n: \u01b0\u01a1ng gi\u1ed1ng giai \u0111o\u1ea1n 1 kho\u1ea3ng t\u1eeb 20-25 ng\u00e0y, sau \u0111\u00f3 chuy\u1ec3n sang nu\u00f4i giai \u0111o\u1ea1n 2 v\u00e0 3 th\u00f4ng qua h\u1ec7 th\u1ed1ng tu\u1ea7n ho\u00e0n n\u01b0\u1edbc. \u0110\u00e2y l\u00e0 h\u1ec7 th\u1ed1ng kh\u00e9p k\u00edn v\u00e0 t\u00e1i s\u1eed d\u1ee5ng n\u01b0\u1edbc >90%, gi\u00fap gi\u1ea3m t\u1ed1i thi\u1ec3u l\u00e2y truy\u1ec1n b\u1ec7nh t\u1eeb qu\u00e1 tr\u00ecnh c\u1ea5p n\u01b0\u1edbc. T\u1eeb \u01b0u th\u1ebf n\u00e0y, ng\u01b0\u1eddi nu\u00f4i c\u00f3 th\u1ec3 th\u1ea3 t\u00f4m li\u00ean t\u1ee5c t\u1eeb 6-8 v\u1ee5\/n\u0103m, s\u1ea3n l\u01b0\u1ee3ng nu\u00f4i b\u00ecnh qu\u00e2n \u0111\u1ea1t t\u1eeb 60-70 t\u1ea5n\/ha\/v\u1ee5.<\/p>\n\n\n\n

N\u01b0\u1edbc nu\u00f4i \u0111\u01b0\u1ee3c t\u00e1i t\u1ea1o s\u1eed d\u1ee5ng cho c\u00e1 r\u00f4 phi v\u00e0 cho dinh d\u01b0\u1ee1ng c\u1ee7a c\u00e1c lo\u00e0i rong m\u1ec1n v\u00e0 rau c\u00e2u. C\u1ee5 th\u1ec3 s\u1ef1 h\u1ea5p th\u1ee5 nitrogen. S\u1ef1 h\u1ea5p th\u1ee5c c\u00e1c ch\u1ec9 ti\u00eau kh\u00e1c nh\u01b0 carbon, v\u1eadt ch\u1ea5t kh\u00f4, phosphorus v\u00e0 CO2<\/sub> c\u0169ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 t\u1ed1i \u01b0u. K\u1ebft qu\u1ea3 c\u0169ng cho th\u1ea5y, kh\u1ea3 n\u0103ng t\u00e1i t\u1ea1o c\u00e1c ngu\u1ed3n carbon d\u01b0\u1edbi d\u1ea1ng kh\u00ed CO2 <\/sub>ti\u1ec1m n\u0103ng ph\u00e1t th\u1ea3i nh\u00e0 k\u00ednh cho c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 g\u1ea7n 100%.<\/p>\n\n\n\n

Ngo\u00e0i ra, trong qu\u00e1 tr\u00ecnh nu\u00f4i, ng\u01b0\u1eddi nu\u00f4i t\u00f4m b\u1ed5 sung c\u00e1c ch\u1ebf ph\u1ea9m sinh h\u1ecdc, th\u1ea3o d\u01b0\u1ee3c v\u00e0o th\u1ee9c \u0103n h\u00e0ng ng\u00e0y \u0111\u1ec3 t\u1ea1o h\u1ec7 th\u1ed1ng mi\u1ec5n d\u1ecbch v\u00e0 ph\u00f2ng vi khu\u1ea9n tr\u00ean t\u00f4m. T\u1eeb \u0111\u00f3, th\u1eddi gian nu\u00f4i \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn, t\u1ef7 l\u1ec7 t\u00f4m s\u1ed1ng \u0111\u1ea1t \u2265 80%; s\u1ea3n l\u01b0\u1ee3ng \u0111\u1ea1t h\u01a1n 20%\/ao so v\u1edbi tr\u01b0\u1edbc \u0111\u00e2y; ch\u1ec9 sau kho\u1ea3ng 2,5 th\u00e1ng th\u1ea3 nu\u00f4i, thu ho\u1ea1ch t\u00f4m \u0111\u1ea1t k\u00edch c\u1ee1 39 con\/kg. \u0110\u1eb7c \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i n\u1eefa l\u00e0 m\u00e0u t\u00f4m r\u1ea5t \u0111\u1eb9p, ch\u1ea5t l\u01b0\u1ee3ng t\u00f4m \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhu c\u1ea7u ti\u00eau d\u00f9ng c\u1ee7a th\u1ecb tr\u01b0\u1eddng ngo\u00e0i n\u01b0\u1edbc.<\/p>\n\n\n\n

Ngu\u1ed3n: H\u00e0 Anh – nguoinuoitom.vn<\/p>\n","protected":false},"excerpt":{"rendered":"

S\u1ef1 ph\u00e1t tri\u1ec3n m\u1ea1nh m\u1ebd c\u1ee7a nu\u00f4i t\u00f4m \u0111\u1ed3ng ngh\u0129a v\u1edbi \u00e1p l\u1ef1c m\u00f4i tr\u01b0\u1eddng ng\u00e0y c\u00e0ng t\u0103ng. \u0110\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi th\u00e1ch th\u1ee9c tr\u00ean, m\u00f4 h\u00ecnh nu\u00f4i t\u00f4m gi\u1ea3m ph\u00e1t th\u1ea3i \u0111\u01b0\u1ee3c xem l\u00e0 gi\u1ea3i ph\u00e1p b\u1ec1n v\u1eefng v\u00e0 hi\u1ec7u qu\u1ea3. M\u00f4 h\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 t\u1ed1i \u01b0u h\u00f3a s\u1ea3n l\u01b0\u1ee3ng m\u00e0 c\u00f2n th\u00e2n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[26],"tags":[104,109,27],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":3049,"url":"https:\/\/mtnongnghiep.com\/index.php\/2025\/09\/18\/nganh-tom-va-giai-phap-giam-phat-thai-khi-nha-kinh-huong-den-phat-trien-san-xuat-xanh\/","url_meta":{"origin":2442,"position":0},"title":"Ng\u00e0nh t\u00f4m v\u00e0 gi\u1ea3i ph\u00e1p gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh h\u01b0\u1edbng \u0111\u1ebfn ph\u00e1t tri\u1ec3n s\u1ea3n xu\u1ea5t xanh","date":"September 18, 2025","format":false,"excerpt":"T\u00f3m t\u1eaft Trong b\u1ed1i c\u1ea3nh Vi\u1ec7t Nam cam k\u1ebft gi\u1ea3m m\u1ee9c ph\u00e1t th\u1ea3i r\u00f2ng b\u1eb1ng 0 v\u00e0o n\u0103m 2050, ng\u00e0nh t\u00f4m \u0111\u1ed1i m\u1eb7t v\u1edbi th\u00e1ch th\u1ee9c chuy\u1ec3n \u0111\u1ed5i sang s\u1ea3n xu\u1ea5t xanh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u th\u1ecb tr\u01b0\u1eddng qu\u1ed1c t\u1ebf v\u1ec1 gi\u1ea3m ph\u00e1t th\u1ea3i v\u00e0 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng.\u2026","rel":"","context":"In "Th\u1ee7y s\u1ea3n"","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2873,"url":"https:\/\/mtnongnghiep.com\/index.php\/2025\/06\/16\/giam-phat-thai-khi-nha-kinh-trong-nuoi-trong-thuy-san\/","url_meta":{"origin":2442,"position":1},"title":"Gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh trong nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n","date":"June 16, 2025","format":false,"excerpt":"\u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long l\u00e0 v\u00f9ng nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n ch\u1ee7 l\u1ef1c, \u0111\u00f3ng g\u00f3p 70-74% t\u1ed5ng di\u1ec7n t\u00edch v\u00e0 s\u1ea3n l\u01b0\u1ee3ng th\u1ee7y s\u1ea3n c\u1ee7a c\u1ea3 n\u01b0\u1edbc. 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V\u00ec v\u1eady, chuy\u1ec3n \u0111\u1ed5i xanh v\u00e0 s\u1ea3n xu\u1ea5t tu\u1ea7n ho\u00e0n, gi\u1ea3m ph\u00e1t th\u1ea3i kh\u00ed nh\u00e0 k\u00ednh trong ng\u00e0nh th\u1ee7y s\u1ea3n l\u00e0 xu h\u01b0\u1edbng\u2026","rel":"","context":"In "Th\u1ee7y s\u1ea3n"","img":{"alt_text":"","src":"https:\/\/i2.wp.com\/mtnongnghiep.com\/wp-content\/uploads\/2024\/12\/ts7-1.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":3116,"url":"https:\/\/mtnongnghiep.com\/index.php\/2025\/09\/19\/bien-rac-thai-nhua-nuoi-trong-thuy-san-thanh-co-hoi-kinh-te\/","url_meta":{"origin":2442,"position":3},"title":"Bi\u1ebfn r\u00e1c th\u1ea3i nh\u1ef1a nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n th\u00e0nh c\u01a1 h\u1ed9i kinh t\u1ebf","date":"September 19, 2025","format":false,"excerpt":"D\u1ef1 \u00e1n \u201cThi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng thu gom v\u00e0 chuy\u1ec3n \u0111\u1ed5i b\u1ea1t l\u00f3t ao \u0111\u00e3 qua s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch b\u1ec1n v\u1eefng, hi\u1ec7u qu\u1ea3 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng\u201d \u0111\u00e3 ch\u1ee9ng minh m\u00f4 h\u00ecnh kinh t\u1ebf tu\u1ea7n ho\u00e0n to\u00e0n di\u1ec7n, gi\u1ea3i quy\u1ebft th\u00e1ch th\u1ee9c r\u00e1c th\u1ea3i nh\u1ef1a ng\u00e0y c\u00e0ng\u2026","rel":"","context":"In "Th\u1ee7y s\u1ea3n"","img":{"alt_text":"","src":"https:\/\/i1.wp.com\/mtnongnghiep.com\/wp-content\/uploads\/2025\/09\/image-49.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2855,"url":"https:\/\/mtnongnghiep.com\/index.php\/2025\/06\/16\/tom-viet-vao-cuoc-dua-xanh-nang-gia-tri-trong-chuoi-cung-ung-thuy-san-toan-cau\/","url_meta":{"origin":2442,"position":4},"title":"T\u00f4m Vi\u1ec7t v\u00e0o cu\u1ed9c \u0111ua xanh n\u00e2ng gi\u00e1 tr\u1ecb trong chu\u1ed7i cung \u1ee9ng th\u1ee7y s\u1ea3n to\u00e0n c\u1ea7u","date":"June 16, 2025","format":false,"excerpt":"Nh\u1edd s\u1ef1 n\u1ed7 l\u1ef1c c\u1ee7a c\u1ed9ng \u0111\u1ed3ng doanh nghi\u1ec7p v\u00e0 ng\u01b0\u1eddi nu\u00f4i, t\u00f4m Vi\u1ec7t Nam \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng m\u1eb7t h\u00e0ng ch\u1ee7 l\u1ef1c, \u0111\u01b0a Vi\u1ec7t Nam v\u01b0\u01a1n l\u00ean nh\u00f3m c\u00e1c qu\u1ed1c gia xu\u1ea5t kh\u1ea9u t\u00f4m h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi. 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