{"id":2682,"date":"2023-05-24T18:59:14","date_gmt":"2023-05-24T11:59:14","guid":{"rendered":"https:\/\/www.greenfeed.com.vn\/thuy-san\/?p=2682"},"modified":"2023-05-24T18:59:14","modified_gmt":"2023-05-24T11:59:14","slug":"quy-trinh-ky-thuat-nuoi-thuong-pham-ca-tra-pangasianodon-hypohthalmus-trong-ao-dat","status":"publish","type":"post","link":"https:\/\/www.greenfeed.com.vn\/thuy-san\/en\/quy-trinh-ky-thuat-nuoi-thuong-pham-ca-tra-pangasianodon-hypohthalmus-trong-ao-dat\/","title":{"rendered":"Quy tr\u00ecnh k\u1ef9 thu\u1eadt nu\u00f4i th\u01b0\u01a1ng ph\u1ea9m c\u00e1 tra (Pangasianodon hypohthalmus) trong ao \u0111\u1ea5t"},"content":{"rendered":"

Tr\u01b0\u1edbc hi\u1ec7n tr\u1ea1ng \u0111\u00f3, C\u00f4ng Ty C\u1ed5 Ph\u1ea7n GREENFEED Vi\u1ec7t Nam xin gi\u1edbi thi\u1ec7u \u0111\u1ebfn qu\u00fd b\u00e0 con v\u00e0 kh\u00e1ch h\u00e0ng Quy Tr\u00ecnh K\u1ef9 Thu\u1eadt Nu\u00f4i C\u00e1 Tra Th\u01b0\u01a1ng Ph\u1ea9m v\u1edbi mong mu\u1ed1n g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t nu\u00f4i v\u00e0 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng cho ng\u00e0nh c\u00e1 tra.<\/p>\n

1. TI\u00caU CHU\u1ea8N AO NU\u00d4I<\/strong><\/h2>\n

I.1 V\u1eca TR\u00cd AO NU\u00d4I<\/h3>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1ecb tr\u00ed ao nu\u00f4i l\u00e0 y\u1ebfu t\u1ed1 r\u1ea5t quan tr\u1ecdng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn n\u0103ng su\u1ea5t, ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 chi ph\u00ed cho c\u1ea3 v\u1ee5 nu\u00f4i. \u0110\u1ec1 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c c\u00e1c v\u1ea5n \u0111\u1ec1 tr\u00ean th\u00ec ng\u01b0\u1eddi nu\u00f4i n\u00ean tu\u00e2n th\u1ee7 c\u00e1c \u0111i\u1ec1u ki\u1ec7n sau:<\/p>\n

    \n
  • N\u1ec1n \u0111\u1ea5t kh\u00f4ng b\u1ecb nhi\u1ec5m ph\u00e8n, th\u00f4ng tho\u00e1ng, kh\u00f4ng c\u00f3 t\u00e1ng c\u00e2y che ph\u1ee7<\/li>\n
  • G\u1ea7n n\u01a1i cung c\u1ea5p n\u01b0\u1edbc nh\u01b0: s\u00f4ng, k\u00eanh, r\u1ea1ch l\u1edbn, c\u00f3 th\u1ec3 ch\u1ee7 \u0111\u1ed9ng \u0111\u01b0\u1ee3c ngu\u1ed3n n\u01b0\u1edbc ph\u1ee5c v\u1ee5 cho su\u1ed1t c\u1ea3 v\u1ee5 nu\u00f4i v\u00e0 ngu\u1ed3n n\u01b0\u1edbc kh\u00f4ng b\u1ecb nhi\u1ec5m m\u1eb7n<\/li>\n
  • Thu\u1eadn ti\u1ec7n giao th\u00f4ng, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c v\u1eadn chuy\u1ec3n th\u1ee9c \u0103n, c\u00e1 gi\u1ed1ng v\u00e0 v\u1eadn chuy\u1ec3n c\u00e1 khi thu ho\u1ea1ch, \u0111\u1ed3ng th\u1eddi gi\u1ea3m \u0111\u01b0\u1ee3c chi ph\u00ed s\u1ea3n xu\u1ea5t cho v\u1ee5 nu\u00f4i.<\/li>\n
  • \u0110\u1ea3m b\u1ea3o an ninh \u0111\u1ecba ph\u01b0\u01a1ng.<\/li>\n<\/ul>\n

    I.2 THI\u1ebeT K\u1ebe AO NU\u00d4I<\/h3>\n
      \n
    • Ao nu\u00f4i c\u00f3 di\u1ec7n t\u00edch t\u1eeb 1.000 m2<\/sup> tr\u1edf l\u00ean; \u0111\u1ed9 s\u00e2u t\u1eeb 2,5 m tr\u1edf l\u00ean (t\u1ed1i \u01b0u v\u1ec1 di\u1ec7n t\u00edch t\u1eeb 5.000 \u2013 10.000 m2<\/sup>, \u0111\u1ed9 s\u00e2u 4 \u2013 6 m)<\/li>\n
    • Ao ph\u1ea3i c\u00f3 c\u1ed1ng c\u1ea5p n\u01b0\u1edbc v\u00e0 tho\u00e1t n\u01b0\u1edbc ri\u00eang bi\u1ec7t, b\u1edd ao ph\u1ea3i \u0111\u1ea3m b\u1ea3o ch\u1eafc ch\u1eafn, kh\u00f4ng r\u00f2 r\u1ec9, cao h\u01a1n m\u1ef1c n\u01b0\u1edbc cao nh\u1ea5t trong ao \u00edt nh\u1ea5t 0,5 m.<\/li>\n<\/ul>\n
      \"H\u00ecnh

      H\u00ecnh 01: Ao nu\u00f4i c\u00e1 tra th\u01b0\u01a1ng ph\u1ea9m<\/p><\/div>\n

      II. QUY TR\u00ccNH K\u1ef8 THU\u1eacT<\/h2>\n

      II.1 C\u1ea2I T\u1ea0O AO<\/h3>\n

      Tr\u01b0\u1edbc khi th\u1ea3 c\u00e1 ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc chu\u1ea9n b\u1ecb ao nh\u01b0 sau:<\/p>\n

        \n
      • Th\u00e1o c\u1ea1n ho\u1eb7c t\u00e1t c\u1ea1n ao, di\u1ec7t h\u1ebft c\u00e1 t\u1ea1p trong ao.<\/li>\n
      • V\u00e9t b\u1edbt b\u00f9n l\u1ecfng \u0111\u00e1y ao, ch\u1ec9 \u0111\u1ec3 l\u1ea1i l\u1edbp b\u00f9n kho\u1ea3ng 10 – 15 cm<\/li>\n
      • L\u1ea5p h\u1ebft hang h\u1ed1c, l\u1ed7 m\u1ecdi r\u00f2 r\u1ec9 v\u00e0 tu s\u1eeda l\u1ea1i b\u1edd, m\u00e1i b\u1edd ao.<\/li>\n
      • D\u00f9ng v\u00f4i CaO r\u1ea3i kh\u1eafp \u0111\u00e1y ao v\u00e0 b\u1edd ao v\u1edbi l\u01b0\u1ee3ng 7-10 kg\/100 m2<\/sup> \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh pH th\u00edch h\u1ee3p.<\/li>\n
      • D\u00f9ng BKC v\u1edbi li\u1ec1u l\u01b0\u1ee3ng 0,5 l\u00edt BKC <\/strong>pha lo\u00e3ng v\u1edbi 200 l\u00edt n\u01b0\u1edbc <\/strong>r\u1ed3i phun \u0111\u1ec1u kh\u1eafp \u0111\u00e1y v\u00e0 xung quanh ao \u0111\u1ec3 ti\u00eau di\u1ec7t m\u1ea7m b\u1ec7nh c\u00f2n tr\u00fa \u1ea9n d\u01b0\u1edbi \u0111\u00e1y ao.<\/li>\n
      • Ph\u01a1i \u0111\u00e1y ao 5 – 7 ng\u00e0y, kh\u00f4ng n\u00ean ph\u01a1i ao qu\u00e1 l\u00e2u s\u1ebd c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng x\u00ec ph\u00e8n kh\u00f4ng c\u00f3 l\u1ee3i cho ao nu\u00f4i.<\/li>\n
      • Sau c\u00f9ng cho n\u01b0\u1edbc t\u1eeb t\u1eeb v\u00e0o ao qua c\u1ed1ng c\u00f3 ch\u1eafn l\u01b0\u1edbi l\u1ecdc \u0111\u1ec3 ng\u0103n c\u00e1 d\u1eef v\u00e0 \u0111\u1ecbch h\u1ea1i l\u1ecdt v\u00e0o ao, gi\u1eef m\u1ee9c n\u01b0\u1edbc ao t\u1eeb 2,0 – 2,5 m.<\/li>\n
      • Tr\u01b0\u1eddng h\u1ee3p nh\u1eefng ao nu\u00f4i \u1edf khu v\u1ef1c c\u1ed3n ven s\u00f4ng, nh\u1eefng ao nu\u00f4i kh\u00f4ng th\u1ec3 t\u00e1t c\u1ea1n th\u00ec quy tr\u00ecnh c\u1ea3i t\u1ea1o ao nh\u01b0 sau:\n
          \n
        • Th\u00e1o c\u1ea1n n\u01b0\u1edbc trong ao xu\u1ed1ng m\u1ee9c th\u1ea5p nh\u1ea5t c\u00f3 th\u1ec3.<\/li>\n
        • D\u00f9ng v\u00f4i CaO v\u1edbi li\u1ec1u 200 kg\/10.000 m3<\/li>\n
        • X\u1eed l\u00fd n\u1ec1n \u0111\u00e1y b\u1eb1ng c\u00e1c ch\u1ebf ph\u1ea9m vi sinh (li\u1ec1u l\u01b0\u1ee3ng s\u1eed d\u1ee5ng theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t)<\/li>\n
        • B\u01a1m n\u01b0\u1edbc v\u00e0o ao nu\u00f4i v\u1edbi m\u1ef1c n\u01b0\u1edbc 2,0 \u2013 2,5 m.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

          II.2 TH\u1ea2 C\u00c1<\/h3>\n

          II.2.1 Ti\u00eau chu\u1ea9n c\u00e1 gi\u1ed1ng<\/strong><\/p>\n

            \n
          • C\u00e1 th\u1ea3 nu\u00f4i c\u1ea7n \u0111\u01b0\u1ee3c ch\u1ecdn l\u1ef1a c\u1ea9n th\u1eadn \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 c\u00e1 t\u0103ng tr\u01b0\u1edfng t\u1ed1t trong qu\u00e1 tr\u00ecnh nu\u00f4i. C\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ec3 ch\u1ecdn \u0111\u00e0n c\u00e1 th\u1ea3 nu\u00f4i:\n
              \n
            • C\u00e1 kh\u1ecfe m\u1ea1nh: quan s\u00e1t th\u1ea5y c\u00e1 \u0111\u1edbp m\u00f3ng nhanh v\u00e0 m\u1ea1nh<\/li>\n
            • C\u00e1 kh\u00f4ng b\u1ecb nhi\u1ec5m k\u00fd sinh tr\u00f9ng v\u00e0 nhi\u1ec5m khu\u1ea9n: ki\u1ec3m tra ng\u1eabu nhi\u00ean 10 \u2013 20 con \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 nhi\u1ec5m k\u00fd sinh tr\u00f9ng c\u0169ng nh\u01b0 n\u1ed9i t\u1ea1ng c\u1ee7a c\u00e1 nh\u01b0 gan, th\u1eadn,…<\/li>\n
            • C\u1ee1 c\u00e1 \u0111\u1ed3ng \u0111\u1ec1u, c\u01a1 th\u1ec3 kh\u00f4ng b\u1ecb tr\u1ea7y x\u01b0\u1edbc, m\u1ea5t nh\u1edbt, c\u00e1c v\u00e2y, k\u1ef3 \u0111\u1ea7y \u0111\u1ee7 v\u00e0 kh\u00f4ng b\u1ecb t\u1ed5n th\u01b0\u01a1ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

              II.2.2 M\u1eadt \u0111\u1ed9 nu\u00f4i<\/strong><\/p>\n

                \n
              • M\u1eadt \u0111\u1ed9 th\u1ea3 nu\u00f4i t\u1eeb 60 \u2013 100 con\/ m2 (c\u00e1 25 \u2013 50 gam\/ con)<\/li>\n
              • L\u01b0u \u00fd: C\u00e1 gi\u1ed1ng m\u1edbi \u0111\u01b0a v\u1ec1, tr\u01b0\u1edbc khi th\u1ea3 xu\u1ed1ng ao n\u00ean t\u1eafm b\u1eb1ng n\u01b0\u1edbc mu\u1ed1i 2 – 3% trong 5- 6 ph\u00fat \u0111\u1ec3 l\u1ecdai tr\u1eeb h\u1ebft c\u00e1c k\u00fd sinh v\u00e0 ch\u1ed1ng nhi\u1ec5m tr\u00f9ng c\u00e1c v\u1ebft th\u01b0\u01a1ng ho\u1eb7c v\u1ebft x\u00e2y x\u00e1t tr\u00ean th\u00e2n c\u00e1. Bu\u1ed5i chi\u1ec1u m\u00e1t c\u00f9ng ng\u00e0y th\u1ea3 gi\u1ed1ng s\u1eed d\u1ee5ng Iodine v\u1edbi li\u1ec1u 0,2 gam\/ m3<\/sup> ao nu\u00f4i, h\u00f2a lo\u00e3ng v\u1edbi n\u01b0\u1edbc v\u00e0 t\u1ea1t \u0111\u1ec1u ao.<\/li>\n<\/ul>\n

                II.3 CHO \u0102N<\/h3>\n
                  \n
                • Ng\u00e0y \u0111\u1ea7u ti\u00ean sau khi th\u1ea3 gi\u1ed1ng kh\u00f4ng n\u00ean cho \u0103n. Trong 3 ng\u00e0y ti\u1ebfp theo n\u00ean cho c\u00e1 \u0103n 01 c\u1eef\/ ng\u00e0y l\u00fac 08:00 v\u1edbi kh\u1ea9u ph\u1ea7n kho\u1ea3ng 0.5 \u2013 0.8% tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00e0n c\u00e1. B\u1ed5 sung th\u00eam Vitamin C v\u00e0 Premix kho\u00e1ng \u0111\u1ec3 c\u00e1 mau ph\u1ee5c h\u1ed3i s\u1ee9c kh\u1ecfe.<\/li>\n
                • B\u1ea3ng ch\u01b0\u01a1ng tr\u00ecnh cho \u0103n khuy\u1ebfn c\u00e1o c\u1ee7a GREENFEED<\/li>\n<\/ul>\n

                  \"\"<\/p>\n

                  \"\"<\/p>\n

                   <\/p>\n

                    \n
                  • L\u01b0u \u00fd<\/strong>:\n
                      \n
                    • Khi cho \u0103n n\u00ean r\u1ea3i th\u1ee9c \u0103n t\u1eeb t\u1eeb v\u00e0 \u0111\u1ec1u ao \u0111\u1ec3 to\u00e0n b\u1ed9 c\u00e1 trong ao c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c, h\u1ea1n ch\u1ebf s\u1ef1 ph\u00e2n c\u1ee1 c\u00e1 trong ao, gi\u1ea3m th\u1eddi gian th\u1ee9c \u0103n ti\u1ebfp x\u00fac v\u1edbi n\u01b0\u1edbc s\u1ebd l\u00e0m m\u1ea5t dinh d\u01b0\u1ee1ng c\u1ee7a th\u1ee9c \u0103n v\u00e0 g\u00e2y \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc.<\/li>\n
                    • Kh\u1ea9u ph\u1ea7n cho \u0103n v\u00e0 l\u01b0\u1ee3ng th\u1ee9c \u0103n c\u0103n c\u1ee9 v\u00e0o \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft, s\u1ee9c kh\u1ecfe c\u00e1 m\u00e0 c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh cho ph\u00f9 h\u1ee3p.<\/li>\n
                    • Tr\u01b0\u1eddng h\u1ee3p v\u00e0o m\u00f9a l\u1ea1nh, c\u00e1 \u0103n \u00edt th\u00ec ch\u1ec9 n\u00ean cho \u0103n 01 c\u1eef\/ ng\u00e0y v\u00e0o l\u00fac nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc ao cao (kho\u1ea3ng 15:00 \u2013 16:00 gi\u1edd) v\u00e0 cho c\u00e1 \u0103n t\u1ed1i \u0111a.<\/em><\/li>\n
                    • T\u00f9y theo \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u00e1 trong ao m\u00e0 quy\u1ebft \u0111\u1ecbnh k\u00edch c\u1ee1 vi\u00ean th\u1ee9c \u0103n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                      II.4 CH\u0102M S\u00d3C, QU\u1ea2N L\u00dd<\/h3>\n

                      II.4.1 Qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ao nu\u00f4i<\/strong><\/p>\n

                        \n
                      • Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ao nu\u00f4i r\u1ea5t quan tr\u1ecdng v\u00ec \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u01a1 th\u1ecbt c\u1ee7a c\u00e1 trong su\u1ed1t v\u1ee5 nu\u00f4i.<\/li>\n
                      • Giai \u0111o\u1ea1n \u0111\u1ea7u khi th\u1ea3 gi\u1ed1ng, sau khi c\u00e1 th\u00edch nghi v\u1edbi m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc m\u1edbi th\u00ec ti\u1ebfn h\u00e0nh thay n\u01b0\u1edbc, l\u01b0\u1ee3ng n\u01b0\u1edbc thay t\u1eeb 20 \u2013 30%. Sau \u0111\u00f3, t\u0103ng d\u1ea7n t\u1ea7n su\u1ea5t thay n\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t giai \u0111o\u1ea1n 03 – 04 th\u00e1ng cu\u1ed1i c\u1ee7a v\u1ee5 nu\u00f4i c\u1ea7n ph\u1ea3i thay n\u01b0\u1edbc h\u00e0ng ng\u00e0y, l\u01b0\u1ee3ng n\u01b0\u1edbc thay t\u1ed1i thi\u1ec3u t\u1eeb 50 – 60%, tr\u01b0\u1eddng h\u1ee3p c\u00f3 th\u1ec3 thay \u0111\u01b0\u1ee3c 100% l\u01b0\u1ee3ng n\u01b0\u1edbc th\u00ec n\u00ean th\u1ef1c hi\u1ec7n. Thay n\u01b0\u1edbc b\u1eb1ng c\u00e1ch v\u1eeba x\u1ea3 c\u1ed1ng \u0111\u00e1y v\u1eeba b\u01a1m n\u01b0\u1edbc v\u00e0o t\u1ea7ng m\u1eb7t \u0111\u1ec3 lo\u1ea1i h\u1ebft l\u01b0\u1ee3ng ch\u1ea5t th\u1ea3i d\u01b0\u1edbi \u0111\u00e1y ao, h\u1ea1n ch\u1ebf s\u1ef1 thay \u0111\u1ed5i m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc \u0111\u1ed9t ng\u1ed9t.<\/li>\n
                      • H\u00fat b\u00f9n \u0111\u00e1y ao: \u0110\u1ecbnh k\u1ef3 khi c\u00e1 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c kho\u1ea3ng 50 – 75 t\u1ea5n th\u1ee9c \u0103n, ti\u1ebfn h\u00e0nh h\u00fat b\u00f9n \u0111\u00e1y ao \u0111\u1ec3 lo\u1ea1i b\u1ecf ch\u1ea5t th\u1ea3i, gi\u1ea3m \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc ao nu\u00f4i v\u00e0 t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng c\u01a1 th\u1ecbt c\u00e1<\/li>\n
                      • L\u01b0u \u00fd: t\u00f9y thu\u1ed9c v\u00e0o t\u1ea7n su\u1ea5t thay n\u01b0\u1edbc, l\u01b0\u1ee3ng n\u01b0\u1edbc thay v\u00e0 l\u01b0\u1ee3ng th\u1ee9c \u0103n \u0111\u00e3 s\u1eed d\u1ee5ng \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh th\u1eddi \u0111i\u1ec3m h\u00fat b\u00f9n \u0111\u00e1y ao cho ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n

                        II.4.2 Qu\u1ea3n l\u00fd \u0111\u00e0n c\u00e1<\/strong><\/p>\n

                          \n
                        • H\u00e0ng ng\u00e0y ph\u1ea3i ch\u00fa \u00fd theo d\u00f5i ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1, m\u1ee9c \u0111\u1ed9 s\u1eed d\u1ee5ng th\u1ee9c \u0103n, t\u00ecnh h\u00ecnh th\u1eddi ti\u1ebft \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng th\u1ee9c \u0103n cho h\u1ee3p l\u00fd v\u00e0 \u0111\u1ea1t hi\u1ec7u qu\u1ea3.<\/li>\n
                        • Khi th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng c\u00e1 n\u1ed5i \u0111\u1ea7u kh\u00e1c v\u1edbi b\u00ecnh th\u01b0\u1eddng, ph\u1ea3i nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n \u0111\u1ec3 c\u00f3 bi\u1ec7n ph\u00e1p x\u1eed l\u00fd k\u1ecbp th\u1eddi.<\/li>\n
                        • Ki\u1ec3m tra c\u00e1: m\u1ed7i th\u00e1ng ti\u1ebfn h\u00e0nh ki\u1ec3m tra c\u00e1 m\u1ed9t l\u1ea7n. Khi ki\u1ec3m tra, b\u1eaft ng\u1eabu nhi\u00ean 30 c\u00e1 th\u1ec3 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u1ee1 c\u00e1, tr\u1ecdng l\u01b0\u1ee3ng \u0111\u00e0n c\u00e1 v\u00e0 \u0111\u00e1nh gi\u00e1 s\u1ef1 t\u0103ng tr\u01b0\u1edfng.<\/li>\n<\/ul>\n

                          \"\"<\/p>\n

                           <\/p>\n

                          II.4.3 Ph\u00f2ng b\u1ec7nh<\/strong><\/p>\n

                            \n
                          • T\u0103ng c\u01b0\u1eddng s\u1ee9c kh\u1ecfe, s\u1ee9c \u0111\u1ec1 kh\u00e1ng c\u1ee7a c\u00e1: \u0111\u1ecbnh k\u1ef3 7 – 10 ng\u00e0y b\u1ed5 sung Vitamin C, Premix kho\u00e1ng, men ti\u00eau h\u00f3a \u0111\u1ec3 c\u00e1 kh\u1ecfe m\u1ea1nh v\u00e0 h\u1ea5p thu t\u1ed1t d\u01b0\u1ee1ng ch\u1ea5t trong th\u1ee9c \u0103n.<\/li>\n
                          • H\u1ea1n ch\u1ebf m\u1ea7m b\u1ec7nh, vi khu\u1ea9n trong ao nu\u00f4i: \u0110\u1ecbnh k\u1ef3 h\u00fat b\u00f9n \u0111\u00e1y ao, thao t\u00e1c h\u00fat b\u00f9n n\u00ean t\u1eeb t\u1eeb, nh\u1eb9 nh\u00e0ng \u0111\u1ec3 tr\u00e1nh l\u00e0m qu\u1ea9y \u0111\u1ee5c \u0111\u00e1y ao, kh\u00ed \u0111\u1ed9c s\u1ebd h\u00f2a tan v\u00e0o n\u01b0\u1edbc g\u00e2y b\u1ec7nh cho c\u00e1.<\/li>\n
                          • H\u1ea1n ch\u1ebf m\u1ea7m b\u1ec7nh k\u00ed sinh trong c\u01a1 th\u1ec3 c\u00e1: \u0110\u1ecbnh k\u1ef3 20 – 30 ng\u00e0y x\u1ed5 k\u00ed sinh cho c\u00e1 b\u1eb1ng c\u00e1ch tr\u1ed9n thu\u1ed1c (li\u1ec1u khuy\u1ebfn c\u00e1o c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t) v\u00e0o th\u1ee9c \u0103n. M\u1ed7i l\u1ea7n x\u1ed5 2 \u2013 3 ng\u00e0y v\u00e0 ch\u1ec9 x\u1ed5 1 l\u1ea7n\/ ng\u00e0y v\u00e0o bu\u1ed5i s\u00e1ng. Sau khi x\u1ed5 k\u00ed sinh, cho c\u00e1 \u0103n b\u1ed5 sung Vitamin C, Premix kho\u00e1ng v\u00e0 men ti\u00eau h\u00f3a 3 \u2013 5 ng\u00e0y li\u00ean t\u1ee5c \u0111\u1ec3 c\u00e1 nhanh ph\u1ee5c h\u1ed3i.<\/li>\n
                          • \u0110\u1ecbnh k\u1ef3 x\u1eed l\u00fd v\u00f4i CaO v\u1edbi li\u1ec1u 200 kg\/ 10.000 m3<\/sup> n\u01b0\u1edbc \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc ao nu\u00f4i.<\/li>\n<\/ul>\n

                            II.5 \u00a0THU HO\u1ea0CH<\/strong><\/h3>\n
                              \n
                            • Tr\u01b0\u1edbc <\/em><\/strong>khi<\/em><\/strong> thu ho\u1ea1ch c\u1ea7n<\/em><\/strong>:\n
                                \n
                              • D\u1ef1 b\u00e1o s\u1ed1 l\u01b0\u1ee3ng c\u00e1 trong ao \u0111\u1ec3 nh\u00e0 thu mua chu\u1ea9n b\u1ecb ph\u01b0\u01a1ng ti\u1ec7n v\u1eadn chuy\u1ec3n.<\/li>\n
                              • T\u0103ng c\u01b0\u1eddng s\u1ee9c kh\u1ecfe cho c\u00e1 b\u1eb1ng c\u00e1ch cho c\u00e1 \u0103n vitamin C li\u00ean t\u1ee5c t\u1eeb 3 – 5 ng\u00e0y (li\u1ec1u s\u1eed d\u1ee5ng theo h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t);<\/li>\n
                              • T\u00f9y theo m\u00e0u s\u1eafc c\u01a1 th\u1ecbt c\u00e1 m\u00e0 quy\u1ebft \u0111\u1ecbnh th\u1eddi gian b\u1ed5 sung th\u00eam c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111\u1ec3 \u0111\u1ea1t m\u00e0u y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 thu mua.<\/li>\n
                              • Kh\u1eed tr\u00f9ng n\u01b0\u1edbc ao nu\u00f4i b\u1eb1ng BKC v\u1edbi li\u1ec1u 200 gam\/1.000 m3<\/sup> n\u01b0\u1edbc;<\/li>\n
                              • Ng\u01b0ng cho c\u00e1 \u0103n 2 – 3 ng\u00e0y tr\u01b0\u1edbc khi thu ho\u1ea1ch.<\/li>\n<\/ul>\n<\/li>\n
                              • Khi<\/em><\/strong> thu ho\u1ea1ch c\u1ea7n:<\/em><\/strong>\n
                                  \n
                                • X\u1eed l\u00fd n\u01b0\u1edbc trong khu v\u1ef1c thu c\u00e1 b\u1eb1ng s\u1ea3n ph\u1ea9m ch\u1ee9a ch\u1ea5t chi\u1ebft xu\u1ea5t c\u1ee7a Yucca, mu\u1ed1i \u0111\u1ec3 kh\u1eed kh\u00ed \u0111\u1ed9c v\u00e0 l\u00e0m t\u0103ng s\u1ee9c kh\u1ecfe c\u1ee7a c\u00e1.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"

                                  C\u00e1 tra (Pangasianodon hypophthalmus) l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed1i t\u01b0\u1ee3ng xu\u1ea5t kh\u1ea9u ch\u1ee7 l\u1ef1c c\u1ee7a ng\u00e0nh th\u1ee7y s\u1ea3n Vi\u1ec7t Nam, g\u00f3p ph\u1ea7n l\u1edbn trong vi\u1ec7c c\u1ea3i thi\u1ec7n \u0111\u1eddi s\u1ed1ng cho b\u00e0 con v\u00e0 thu ngo\u1ea1i t\u1ec7 v\u1ec1 cho \u0111\u1ea5t n\u01b0\u1edbc. Tuy nhi\u00ean trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, ngh\u1ec1 nu\u00f4i c\u00e1 tra tr\u1ea3i qua nhi\u1ec1u th\u0103ng tr\u1ea7m, c\u00f9ng v\u1edbi nhi\u1ec1u kh\u00f3 kh\u0103n c\u1ee7a th\u1ecb tr\u01b0\u1eddng, nh\u1eefng quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a n\u01b0\u1edbc nh\u1eadp kh\u1ea9u, m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc ng\u00e0y c\u00e0ng \u00f4 nhi\u1ec5m, con gi\u1ed1ng suy tho\u00e1i v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng\u2026 d\u1eabn \u0111\u1ebfn gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t t\u0103ng cao, gi\u1ea3m l\u1ee3i nhu\u1eadn c\u1ee7a ng\u01b0\u1eddi nu\u00f4i v\u00e0 doanh nghi\u1ec7p.<\/p>\n","protected":false},"author":1,"featured_media":2248,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,94],"tags":[189],"class_list":["post-2682","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-event","category-technical-documentation","tag-ky-thuat-nuoi-thuong-pham-ca-tra"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/2682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/comments?post=2682"}],"version-history":[{"count":1,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/2682\/revisions"}],"predecessor-version":[{"id":2683,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/2682\/revisions\/2683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/media\/2248"}],"wp:attachment":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/media?parent=2682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/categories?post=2682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/tags?post=2682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}