{"id":3635,"date":"2026-10-05T22:11:46","date_gmt":"2026-10-05T15:11:46","guid":{"rendered":"https:\/\/www.greenfeed.com.vn\/thuy-san\/?p=3635"},"modified":"2026-10-05T22:11:46","modified_gmt":"2026-10-05T15:11:46","slug":"cai-thien-fcr-thuc-an-tot-can-di-cung-quan-ly-ao-nuoi-tot","status":"publish","type":"post","link":"https:\/\/www.greenfeed.com.vn\/thuy-san\/cai-thien-fcr-thuc-an-tot-can-di-cung-quan-ly-ao-nuoi-tot\/","title":{"rendered":"C\u1ea3i thi\u1ec7n FCR: Th\u1ee9c \u0103n t\u1ed1t c\u1ea7n \u0111i c\u00f9ng qu\u1ea3n l\u00fd ao nu\u00f4i t\u1ed1t"},"content":{"rendered":"<div class='dt-toc collapse'><div class='toc-wrapper'><div class='toc-header'><h3 id=\"tom-tat-noi-dung\">T\u00f3m t\u1eaft n\u1ed9i dung<\/h3><span class='act'><\/span><\/div><div class=\"toc-content\"><div class=\"toc-item\"><a href=\"#muon-cai-thien-fcr-khong-chi-la-yeu-to-thuc-an-ma-con-cac-yeu-cau-ve-moi-truong-va-quan-ly-ao-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">Mu\u1ed1n c\u1ea3i thi\u1ec7n FCR, kh\u00f4ng ch\u1ec9 l\u00e0 y\u1ebfu t\u1ed1 th\u1ee9c \u0103n m\u00e0 c\u00f2n c\u00e1c y\u00eau c\u1ea7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 qu\u1ea3n l\u00fd ao nu\u00f4i<\/span><\/a><\/div><div class=\"toc-item\"><a href=\"#1-fcr-phan-anh-ket-qua-cua-ca-qua-trinh-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">1. FCR ph\u1ea3n \u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a c\u1ea3 qu\u00e1 tr\u00ecnh nu\u00f4i<\/span><\/a><\/div><div class=\"toc-item has-child-toc\"><a href=\"#2-nam-nhom-yeu-to-can-quan-ly-dong-bo\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">2. N\u0103m nh\u00f3m y\u1ebfu t\u1ed1 c\u1ea7n qu\u1ea3n l\u00fd \u0111\u1ed3ng b\u1ed9<\/span><\/a><div class=\"list-child-toc\"><div ><a href=\"#2-1-thuc-an-kiem-tra-chat-luong-va-viec-bao-quan\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.1. Th\u1ee9c \u0103n: Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 vi\u1ec7c b\u1ea3o qu\u1ea3n<\/span><\/a><\/div><div ><a href=\"#2-2-moi-truong-nuoc-tao-dieu-kien-de-vat-nuoi-an-va-su-dung-dinh-duong-hieu-qua\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.2. M\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc: T\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 v\u1eadt nu\u00f4i \u0103n v\u00e0 s\u1eed d\u1ee5ng dinh d\u01b0\u1ee1ng hi\u1ec7u qu\u1ea3<\/span><\/a><\/div><div ><a href=\"#2-3-suc-khoe-va-ty-le-song-bao-ve-phan-sinh-khoi-da-dau-tu\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.3. S\u1ee9c kh\u1ecfe v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng: B\u1ea3o v\u1ec7 ph\u1ea7n sinh kh\u1ed1i \u0111\u00e3 \u0111\u1ea7u t\u01b0<\/span><\/a><\/div><div ><a href=\"#2-4-cach-cho-an-dieu-chinh-theo-suc-an-thuc-te\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.4. C\u00e1ch cho \u0103n: \u0110i\u1ec1u ch\u1ec9nh theo s\u1ee9c \u0103n th\u1ef1c t\u1ebf<\/span><\/a><\/div><div ><a href=\"#2-5-sinh-khoi-va-so-lieu-do-dung-de-dieu-chinh-dung\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.5. Sinh kh\u1ed1i v\u00e0 s\u1ed1 li\u1ec7u: \u0110o \u0111\u00fang \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang<\/span><\/a><\/div><\/div><\/div><div class=\"toc-item\"><a href=\"#3-khi-fcr-thay-doi-hay-kiem-tra-bang-du-lieu\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">3. Khi FCR thay \u0111\u1ed5i, h\u00e3y ki\u1ec3m tra b\u1eb1ng d\u1eef li\u1ec7u<\/span><\/a><\/div><div class=\"toc-item\"><a href=\"#4-danh-gia-fcr-cung-hieu-qua-ca-vu-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">4. \u0110\u00e1nh gi\u00e1 FCR c\u00f9ng hi\u1ec7u qu\u1ea3 c\u1ea3 v\u1ee5 nu\u00f4i<\/span><\/a><\/div><div class=\"toc-item\"><a href=\"#5-cai-thien-fcr-bang-nhung-thay-doi-thuc-chat-tai-ao\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">5. C\u1ea3i thi\u1ec7n FCR b\u1eb1ng nh\u1eefng thay \u0111\u1ed5i th\u1ef1c ch\u1ea5t t\u1ea1i ao<\/span><\/a><\/div><div class=\"toc-item\"><a href=\"#tai-lieu-tham-khao\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/span><\/a><\/div><\/div><div class='toc-trigger'><a href='#toctrigger'><svg xmlns='http:\/\/www.w3.org\/2000\/svg' class='ionicon' viewBox='0 0 512 512'><title>List<\/title><path fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='20' d='M160 144h288M160 256h288M160 368h288'\/><circle cx='80' cy='144' r='16' fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='20'\/><circle cx='80' cy='256' r='16' fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='20'\/><circle cx='80' cy='368' r='16' fill='none' stroke='currentColor' stroke-linecap='round' stroke-linejoin='round' stroke-width='20'\/><\/svg><\/a><\/div><\/div><\/div><div class=\"post-content\"><style>@media (max-width:640px){.gf-tablewrap table{min-width:560px!important}.gf-tablewrap::after{content:\"Vu\\1ED1 t ngang \\111 \\1EC3  xem \\111 \\1EE7  b\\1EA3 ng\";display:block;font-size:0.85em;color:#7a8a80;text-align:center;margin-top:6px}}<\/style>\n<h2 id=\"muon-cai-thien-fcr-khong-chi-la-yeu-to-thuc-an-ma-con-cac-yeu-cau-ve-moi-truong-va-quan-ly-ao-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">Mu\u1ed1n c\u1ea3i thi\u1ec7n FCR, kh\u00f4ng ch\u1ec9 l\u00e0 y\u1ebfu t\u1ed1 th\u1ee9c \u0103n m\u00e0 c\u00f2n c\u00e1c y\u00eau c\u1ea7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng v\u00e0 qu\u1ea3n l\u00fd ao nu\u00f4i<\/span><\/h2>\n<p>FCR &#8211; h\u1ec7 s\u1ed1 chuy\u1ec3n \u0111\u1ed5i th\u1ee9c \u0103n &#8211; cho bi\u1ebft l\u01b0\u1ee3ng th\u1ee9c \u0103n c\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra m\u1ed9t \u0111\u01a1n v\u1ecb t\u0103ng tr\u1ecdng. C\u1ea3i thi\u1ec7n FCR gi\u00fap gi\u1ea3m l\u01b0\u1ee3ng th\u1ee9c \u0103n c\u1ea7n thi\u1ebft cho c\u00f9ng m\u1ee9c t\u0103ng tr\u1ecdng, qua \u0111\u00f3 g\u00f3p ph\u1ea7n ki\u1ec3m so\u00e1t chi ph\u00ed s\u1ea3n xu\u1ea5t. Tuy nhi\u00ean, k\u1ebft qu\u1ea3 n\u00e0y kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o th\u1ee9c \u0103n m\u00e0 c\u00f2n ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 c\u00e1ch v\u1eadn h\u00e0nh ao nu\u00f4i.<sup>[1, 2]<\/sup><\/p>\n<p>V\u00ec v\u1eady, khi FCR ch\u01b0a \u0111\u1ea1t k\u1ef3 v\u1ecdng, c\u00e2u h\u1ecfi c\u1ea7n \u0111\u1eb7t ra kh\u00f4ng ch\u1ec9 l\u00e0 <strong>\u201cTh\u1ee9c \u0103n \u0111ang s\u1eed d\u1ee5ng c\u00f3 ph\u00f9 h\u1ee3p kh\u00f4ng?\u201d<\/strong>, m\u00e0 c\u00f2n l\u00e0 <strong>\u201cThu\u1ef7 s\u1ea3n nu\u00f4i c\u00f3 \u0111ang \u0111\u01b0\u1ee3c t\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 s\u1eed d\u1ee5ng th\u1ee9c \u0103n hi\u1ec7u qu\u1ea3 kh\u00f4ng?\u201d<\/strong><\/p>\n<p>H\u01b0\u1edbng c\u1ea3i thi\u1ec7n c\u1ea7n b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c xem x\u00e9t \u0111\u1ed3ng th\u1eddi th\u1ee9c \u0103n, m\u00f4i tr\u01b0\u1eddng, s\u1ee9c kh\u1ecfe v\u1eadt nu\u00f4i thu\u1ef7 s\u1ea3n, c\u00e1ch cho \u0103n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ed1 li\u1ec7u theo d\u00f5i.<\/p>\n<h2 id=\"1-fcr-phan-anh-ket-qua-cua-ca-qua-trinh-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">1. FCR ph\u1ea3n \u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a c\u1ea3 qu\u00e1 tr\u00ecnh nu\u00f4i<\/span><\/h2>\n<p>C\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n:<\/p>\n<div style=\"background:#0b4028;color:#fff;border-radius:8px;padding:18px;margin:18px 0;text-align:center;font-weight:700;line-height:1.6\">FCR = T\u1ed5ng l\u01b0\u1ee3ng th\u1ee9c \u0103n \u0111\u00e3 s\u1eed d\u1ee5ng<br \/>\u00f7 T\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt nu\u00f4i t\u0103ng th\u00eam<\/div>\n<p>Ch\u1eb3ng h\u1ea1n, s\u1eed d\u1ee5ng 1.500 kg th\u1ee9c \u0103n \u0111\u1ec3 t\u1ea1o ra 1.000 kg t\u0103ng tr\u1ecdng th\u00ec FCR b\u1eb1ng 1,5. C\u00f4ng th\u1ee9c \u0111\u01a1n gi\u1ea3n, nh\u01b0ng qu\u00e1 tr\u00ecnh t\u1ea1o ra k\u1ebft qu\u1ea3 \u0111\u00f3 l\u1ea1i g\u1ed3m nhi\u1ec1u kh\u00e2u: v\u1eadt nu\u00f4i ph\u1ea3i b\u1eaft m\u1ed3i, ti\u00eau h\u00f3a, h\u1ea5p thu dinh d\u01b0\u1ee1ng v\u00e0 chuy\u1ec3n h\u00f3a \u0111\u1ec3 t\u0103ng tr\u01b0\u1edfng.<sup>[1]<\/sup><\/p>\n<p>Trong t\u1ed5ng quan tr\u00ean c\u00e1 r\u00f4 phi, Mengistu v\u00e0 c\u1ed9ng s\u1ef1 (2020) ph\u00e2n t\u00edch d\u1eef li\u1ec7u t\u1eeb <strong>32 c\u00f4ng tr\u00ecnh<\/strong>, ghi nh\u1eadn vai tr\u00f2 c\u1ee7a nhi\u1ec7t \u0111\u1ed9, oxy h\u00f2a tan, pH v\u00e0 h\u00e0m l\u01b0\u1ee3ng \u0111\u1ea1m trong th\u1ee9c \u0103n \u0111\u1ed1i v\u1edbi FCR. K\u1ebft qu\u1ea3 n\u00e0y cho th\u1ea5y c\u1ea7n xem x\u00e9t \u0111\u1ed3ng th\u1eddi dinh d\u01b0\u1ee1ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n nu\u00f4i, thay v\u00ec quy FCR cho m\u1ed9t nguy\u00ean nh\u00e2n duy nh\u1ea5t.<sup>[3]<\/sup><\/p>\n<p><strong>Th\u1ee9c \u0103n l\u00e0 \u0111\u1ea7u v\u00e0o quan tr\u1ecdng; \u0111i\u1ec1u ki\u1ec7n ao nu\u00f4i v\u00e0 c\u00e1ch qu\u1ea3n l\u00fd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ea7u v\u00e0o \u0111\u00f3 th\u00e0nh t\u0103ng tr\u1ecdng.<\/strong><\/p>\n<h2 id=\"2-nam-nhom-yeu-to-can-quan-ly-dong-bo\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">2. N\u0103m nh\u00f3m y\u1ebfu t\u1ed1 c\u1ea7n qu\u1ea3n l\u00fd \u0111\u1ed3ng b\u1ed9<\/span><\/h2>\n<h3 id=\"2-1-thuc-an-kiem-tra-chat-luong-va-viec-bao-quan\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.1. Th\u1ee9c \u0103n: Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 vi\u1ec7c b\u1ea3o qu\u1ea3n<\/span><\/h3>\n<p>Th\u1ee9c \u0103n v\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 nghi\u00eam t\u00fac khi t\u00ecm nguy\u00ean nh\u00e2n khi\u1ebfn FCR thay \u0111\u1ed5i. Ng\u01b0\u1eddi nu\u00f4i c\u1ea7n theo d\u00f5i s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c l\u00f4, t\u00ecnh tr\u1ea1ng vi\u00ean th\u1ee9c \u0103n, \u0111\u1ed9 b\u1ec1n trong n\u01b0\u1edbc, d\u1ea5u hi\u1ec7u \u1ea9m m\u1ed1c v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n.<sup>[1]<\/sup><\/p>\n<p>N\u1ebfu s\u1ee9c \u0103n ho\u1eb7c t\u0103ng tr\u01b0\u1edfng thay \u0111\u1ed5i sau khi chuy\u1ec3n l\u00f4 th\u1ee9c \u0103n, c\u1ea7n ghi nh\u1eadn r\u00f5 th\u1eddi \u0111i\u1ec3m, th\u00f4ng tin l\u00f4 h\u00e0ng v\u00e0 di\u1ec5n bi\u1ebfn t\u1ea1i ao \u0111\u1ec3 trao \u0111\u1ed5i v\u1edbi b\u1ed9 ph\u1eadn k\u1ef9 thu\u1eadt. Kh\u00f4ng n\u00ean m\u1eb7c \u0111\u1ecbnh th\u1ee9c \u0103n l\u00e0 nguy\u00ean nh\u00e2n, nh\u01b0ng c\u0169ng kh\u00f4ng n\u00ean b\u1ecf qua kh\u1ea3 n\u0103ng n\u00e0y.<\/p>\n<div style=\"background:#e9f5e3;border-left:5px solid #0b6b34;border-radius:6px;padding:14px 18px;margin:18px 0;line-height:1.6\"><strong>Vi\u1ec7c c\u1ea7n l\u00e0m:<\/strong> Theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng th\u1ee9c \u0103n song song v\u1edbi di\u1ec5n bi\u1ebfn m\u00f4i tr\u01b0\u1eddng v\u00e0 s\u1ee9c kh\u1ecfe v\u1eadt nu\u00f4i, thay v\u00ec \u0111\u00e1nh gi\u00e1 t\u1eebng y\u1ebfu t\u1ed1 m\u1ed9t c\u00e1ch t\u00e1ch r\u1eddi.<\/div>\n<h3 id=\"2-2-moi-truong-nuoc-tao-dieu-kien-de-vat-nuoi-an-va-su-dung-dinh-duong-hieu-qua\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.2. M\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc: T\u1ea1o \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 v\u1eadt nu\u00f4i \u0103n v\u00e0 s\u1eed d\u1ee5ng dinh d\u01b0\u1ee1ng hi\u1ec7u qu\u1ea3<\/span><\/h3>\n<p>Oxy h\u00f2a tan l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 c\u1ea7n ch\u00fa tr\u1ecdng. Trong th\u00ed nghi\u1ec7m k\u00e9o d\u00e0i t\u00e1m tu\u1ea7n tr\u00ean <strong>c\u00e1 tr\u1eafm c\u1ecf<\/strong>, Gan v\u00e0 c\u1ed9ng s\u1ef1 (2013) ghi nh\u1eadn \u1edf m\u1ee9c oxy kho\u1ea3ng <strong>3,5 mg\/L<\/strong>, s\u1ee9c \u0103n v\u00e0 kh\u1ea3 n\u0103ng ti\u00eau h\u00f3a \u0111\u1ea1m, n\u0103ng l\u01b0\u1ee3ng, v\u1eadt ch\u1ea5t kh\u00f4 th\u1ea5p h\u01a1n so v\u1edbi m\u1ee9c kho\u1ea3ng <strong>6 mg\/L<\/strong>. Nghi\u00ean c\u1ee9u c\u0169ng ghi nh\u1eadn t\u01b0\u01a1ng t\u00e1c gi\u1eefa oxy v\u00e0 h\u00e0m l\u01b0\u1ee3ng lysine trong kh\u1ea9u ph\u1ea7n \u0111\u1ed1i v\u1edbi FCR. \u0110\u00e2y l\u00e0 b\u1eb1ng ch\u1ee9ng tr\u00ean m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m c\u1ee5 th\u1ec3, kh\u00f4ng ph\u1ea3i ng\u01b0\u1ee1ng oxy chung cho m\u1ecdi lo\u00e0i nu\u00f4i.<sup>[4]<\/sup><\/p>\n<p>B\u00ean c\u1ea1nh oxy, c\u1ea7n l\u01b0u \u00fd t\u00e1c \u0111\u1ed9ng c\u1ee7a NH<sub>3<\/sub> v\u00e0 NO<sub>2<\/sub><sup>\u2212<\/sup> \u0111\u1ebfn s\u1ee9c kh\u1ecfe, chuy\u1ec3n h\u00f3a v\u00e0 t\u0103ng tr\u01b0\u1edfng. M\u1ed9t ao nu\u00f4i ch\u01b0a xu\u1ea5t hi\u1ec7n ch\u1ebft h\u00e0ng lo\u1ea1t v\u1eabn c\u00f3 th\u1ec3 \u0111ang g\u1eb7p v\u1ea5n \u0111\u1ec1: v\u1eadt nu\u00f4i ti\u1ebfp t\u1ee5c \u0103n nh\u01b0ng kh\u00f4ng l\u1edbn t\u01b0\u01a1ng x\u1ee9ng v\u1edbi l\u01b0\u1ee3ng th\u1ee9c \u0103n s\u1eed d\u1ee5ng.<sup>[1]<\/sup><\/p>\n<div style=\"background:#e9f5e3;border-left:5px solid #0b6b34;border-radius:6px;padding:14px 18px;margin:18px 0;line-height:1.6\"><strong>Vi\u1ec7c c\u1ea7n l\u00e0m:<\/strong> Theo d\u00f5i di\u1ec5n bi\u1ebfn oxy, \u0111\u1eb7c bi\u1ec7t v\u00e0o th\u1eddi \u0111i\u1ec3m th\u1ea5p trong ng\u00e0y; ki\u1ec3m tra c\u00e1c ch\u1ec9 ti\u00eau n\u01b0\u1edbc khi s\u1ee9c \u0103n ho\u1eb7c t\u0103ng tr\u01b0\u1edfng thay \u0111\u1ed5i. Kh\u00f4ng ch\u1ec9 \u0111\u00e1nh gi\u00e1 m\u00f4i tr\u01b0\u1eddng b\u1eb1ng m\u00e0u n\u01b0\u1edbc ho\u1eb7c bi\u1ec3u hi\u1ec7n b\u00ean ngo\u00e0i c\u1ee7a v\u1eadt nu\u00f4i.<sup>[1]<\/sup><\/div>\n<h3 id=\"2-3-suc-khoe-va-ty-le-song-bao-ve-phan-sinh-khoi-da-dau-tu\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.3. S\u1ee9c kh\u1ecfe v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng: B\u1ea3o v\u1ec7 ph\u1ea7n sinh kh\u1ed1i \u0111\u00e3 \u0111\u1ea7u t\u01b0<\/span><\/h3>\n<p>Th\u1ee9c \u0103n \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nh\u1eefng c\u00e1 th\u1ec3 b\u1ecb hao h\u1ee5t v\u1eabn l\u00e0 m\u1ed9t ph\u1ea7n chi ph\u00ed c\u1ee7a v\u1ee5 nu\u00f4i, nh\u01b0ng ph\u1ea7n sinh kh\u1ed1i \u0111\u00f3 kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c thu ho\u1ea1ch. Do v\u1eady, qu\u1ea3n l\u00fd s\u1ee9c kh\u1ecfe v\u00e0 t\u1ef7 l\u1ec7 s\u1ed1ng c\u0169ng l\u00e0 qu\u1ea3n l\u00fd hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng th\u1ee9c \u0103n. Nghi\u00ean c\u1ee9u t\u1ed5ng quan c\u1ee7a Mengistu v\u00e0 c\u1ed9ng s\u1ef1 nh\u1ea5n m\u1ea1nh vai tr\u00f2 c\u1ee7a hao h\u1ee5t \u0111\u1ed1i v\u1edbi FCR, \u0111\u1eb7c bi\u1ec7t khi hao h\u1ee5t x\u1ea3y ra \u1edf giai \u0111o\u1ea1n mu\u1ed9n.<sup>[3]<\/sup><\/p>\n<div style=\"background:#e9f5e3;border-left:5px solid #0b6b34;border-radius:6px;padding:14px 18px;margin:18px 0;line-height:1.6\"><strong>Vi\u1ec7c c\u1ea7n l\u00e0m:<\/strong> Ghi nh\u1eadn hao h\u1ee5t h\u1eb1ng ng\u00e0y, theo d\u00f5i d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng v\u00e0 ki\u1ec3m tra t\u0103ng tr\u01b0\u1edfng \u0111\u1ecbnh k\u1ef3. Kh\u00f4ng ch\u1ec9 ch\u00fa \u00fd nh\u1eefng \u0111\u1ee3t ch\u1ebft l\u1edbn m\u00e0 b\u1ecf qua hao h\u1ee5t r\u1ea3i r\u00e1c ho\u1eb7c t\u00ecnh tr\u1ea1ng ch\u1eadm l\u1edbn k\u00e9o d\u00e0i.<sup>[1]<\/sup><\/div>\n<h3 id=\"2-4-cach-cho-an-dieu-chinh-theo-suc-an-thuc-te\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.4. C\u00e1ch cho \u0103n: \u0110i\u1ec1u ch\u1ec9nh theo s\u1ee9c \u0103n th\u1ef1c t\u1ebf<\/span><\/h3>\n<p>B\u1ea3ng cho \u0103n l\u00e0 c\u01a1 s\u1edf tham kh\u1ea3o, nh\u01b0ng l\u01b0\u1ee3ng th\u1ee9c \u0103n \u0111\u01b0a xu\u1ed1ng ao c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ed1i chi\u1ebfu v\u1edbi kh\u1ea3 n\u0103ng b\u1eaft m\u1ed3i th\u1ef1c t\u1ebf.<\/p>\n<p>Trong b\u00e0i t\u1ed5ng h\u1ee3p c\u1ee7a Boyd v\u00e0 Hanson, c\u00e1c th\u00ed nghi\u1ec7m tr\u00ean c\u00e1 nheo M\u1ef9 cho th\u1ea5y vi\u1ec7c ti\u1ebfp t\u1ee5c cho \u0103n theo b\u1ea3ng c\u1ed1 \u0111\u1ecbnh khi oxy th\u1ea5p, s\u1ee9c \u0103n gi\u1ea3m ho\u1eb7c c\u00f3 hao h\u1ee5t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn cho \u0103n d\u01b0 v\u00e0 l\u00e0m FCR x\u1ea5u \u0111i. T\u00e1c gi\u1ea3 nh\u1ea5n m\u1ea1nh vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng cho \u0103n theo s\u1ee9c \u0103n v\u00e0 t\u00ecnh tr\u1ea1ng \u0111\u00e0n c\u00e1.<sup>[5]<\/sup><\/p>\n<div style=\"background:#e9f5e3;border-left:5px solid #0b6b34;border-radius:6px;padding:14px 18px;margin:18px 0;line-height:1.6\"><strong>Vi\u1ec7c c\u1ea7n l\u00e0m:<\/strong> Quan s\u00e1t ph\u1ea3n \u1ee9ng b\u1eaft m\u1ed3i, ki\u1ec3m tra kh\u1ea3 n\u0103ng xu\u1ea5t hi\u1ec7n th\u1ee9c \u0103n d\u01b0 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh c\u00e1ch cho \u0103n theo t\u00ecnh tr\u1ea1ng ao. C\u1ea7n xem x\u00e9t c\u1ea3 l\u01b0\u1ee3ng cho \u0103n, t\u1ed1c \u0111\u1ed9 r\u1ea3i, v\u1ecb tr\u00ed v\u00e0 th\u1eddi \u0111i\u1ec3m cho \u0103n.<sup>[1]<\/sup><\/div>\n<p>M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i cho \u0103n nhi\u1ec1u nh\u1ea5t ho\u1eb7c \u00edt nh\u1ea5t, m\u00e0 l\u00e0 <strong>cho \u0103n ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u v\u00e0 kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng th\u1ee9c \u0103n c\u1ee7a v\u1eadt nu\u00f4i<\/strong>.<\/p>\n<h3 id=\"2-5-sinh-khoi-va-so-lieu-do-dung-de-dieu-chinh-dung\"><span style=\"display:block;color:#0b6b34;padding-left:12px;border-left:5px solid #4a9d3f\">2.5. Sinh kh\u1ed1i v\u00e0 s\u1ed1 li\u1ec7u: \u0110o \u0111\u00fang \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang<\/span><\/h3>\n<p>Kh\u1ea9u ph\u1ea7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh t\u1eeb sinh kh\u1ed1i \u01b0\u1edbc l\u01b0\u1ee3ng. N\u1ebfu \u01b0\u1edbc l\u01b0\u1ee3ng \u0111\u00e0n c\u00e1 cao h\u01a1n th\u1ef1c t\u1ebf, ng\u01b0\u1eddi nu\u00f4i c\u00f3 th\u1ec3 cho \u0103n d\u01b0; n\u1ebfu \u01b0\u1edbc l\u01b0\u1ee3ng th\u1ea5p h\u01a1n th\u1ef1c t\u1ebf, v\u1eadt nu\u00f4i c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c cung c\u1ea5p \u0111\u1ee7 th\u1ee9c \u0103n cho t\u0103ng tr\u01b0\u1edfng. V\u00ec v\u1eady, c\u00e2n m\u1eabu v\u00e0 c\u1eadp nh\u1eadt t\u00ecnh tr\u1ea1ng \u0111\u00e0n c\u00e1 l\u00e0 c\u01a1 s\u1edf quan tr\u1ecdng \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh kh\u1ea9u ph\u1ea7n.<sup>[1, 3]<\/sup><\/p>\n<div style=\"background:#e9f5e3;border-left:5px solid #0b6b34;border-radius:6px;padding:14px 18px;margin:18px 0;line-height:1.6\"><strong>Vi\u1ec7c c\u1ea7n l\u00e0m:<\/strong> Ghi \u0111\u1ea7y \u0111\u1ee7 th\u1ee9c \u0103n \u0111\u00e3 s\u1eed d\u1ee5ng, k\u1ebft qu\u1ea3 c\u00e2n m\u1eabu, hao h\u1ee5t v\u00e0 s\u1ea3n l\u01b0\u1ee3ng thu ho\u1ea1ch; tr\u00e1nh \u0111i\u1ec1u ch\u1ec9nh kh\u1ea9u ph\u1ea7n ho\u1eb7c k\u1ebft lu\u1eadn v\u1ec1 hi\u1ec7u qu\u1ea3 th\u1ee9c \u0103n ch\u1ec9 t\u1eeb nh\u1eefng con s\u1ed1 \u01b0\u1edbc \u0111o\u00e1n.<\/div>\n<h2 id=\"3-khi-fcr-thay-doi-hay-kiem-tra-bang-du-lieu\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">3. Khi FCR thay \u0111\u1ed5i, h\u00e3y ki\u1ec3m tra b\u1eb1ng d\u1eef li\u1ec7u<\/span><\/h2>\n<p>Thay v\u00ec t\u00ecm m\u1ed9t nguy\u00ean nh\u00e2n duy nh\u1ea5t ngay t\u1eeb \u0111\u1ea7u, ng\u01b0\u1eddi nu\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u1ea3ng ki\u1ec3m tra sau.<sup>[1]<\/sup><\/p>\n<div class=\"gf-tablewrap\" style=\"overflow-x:auto;margin:14px 0 20px\">\n<table style=\"width:100%;border-collapse:collapse;line-height:1.5;min-width:520px\">\n<tr>\n<th style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#4a9d3f;color:#fff;text-align:center\"><strong>Nh\u00f3m ki\u1ec3m tra<\/strong><\/th>\n<th style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#4a9d3f;color:#fff;text-align:center\"><strong>C\u00e2u h\u1ecfi c\u1ea7n tr\u1ea3 l\u1eddi<\/strong><\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\"><strong>Th\u1ee9c \u0103n<\/strong><\/td>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\">C\u00f3 thay \u0111\u1ed5i l\u00f4 h\u00e0ng kh\u00f4ng? Vi\u00ean th\u1ee9c \u0103n, \u0111\u1ed9 b\u1ec1n trong n\u01b0\u1edbc v\u00e0 \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n c\u00f3 b\u1ea5t th\u01b0\u1eddng kh\u00f4ng?<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\"><strong>M\u00f4i tr\u01b0\u1eddng<\/strong><\/td>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\">Oxy c\u00f3 gi\u1ea3m ho\u1eb7c dao \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng kh\u00f4ng? NH<sub>3<\/sub> v\u00e0 NO<sub>2<\/sub><sup>\u2212<\/sup> \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra ch\u01b0a?<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\"><strong>S\u1ee9c kh\u1ecfe, t\u0103ng tr\u01b0\u1edfng<\/strong><\/td>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\">S\u1ee9c \u0103n v\u00e0 t\u1ed1c \u0111\u1ed9 l\u1edbn c\u00f3 thay \u0111\u1ed5i kh\u00f4ng? C\u00f3 d\u1ea5u hi\u1ec7u stress, b\u1ec7nh ho\u1eb7c hao h\u1ee5t r\u1ea3i r\u00e1c kh\u00f4ng?<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\"><strong>Cho \u0103n<\/strong><\/td>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\">L\u01b0\u1ee3ng cho \u0103n c\u00f3 c\u00f2n ph\u00f9 h\u1ee3p v\u1edbi s\u1ee9c \u0103n th\u1ef1c t\u1ebf kh\u00f4ng? C\u00f3 th\u1ea5t tho\u00e1t do c\u00e1ch r\u1ea3i, v\u1ecb tr\u00ed ho\u1eb7c th\u1eddi \u0111i\u1ec3m cho \u0103n kh\u00f4ng?<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\"><strong>Sinh kh\u1ed1i, s\u1ed1 li\u1ec7u<\/strong><\/td>\n<td style=\"border:1px solid #cfe3c6;padding:8px 10px;vertical-align:top;background:#e9f5e3\">L\u1ea7n c\u00e2n m\u1eabu g\u1ea7n nh\u1ea5t khi n\u00e0o? M\u1eabu c\u00f3 \u0111\u1ea1i di\u1ec7n kh\u00f4ng? Th\u1ee9c \u0103n s\u1eed d\u1ee5ng v\u00e0 hao h\u1ee5t \u0111\u00e3 \u0111\u01b0\u1ee3c ghi \u0111\u1ea7y \u0111\u1ee7 ch\u01b0a?<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<p>B\u1ea3ng ki\u1ec3m tra gi\u00fap xem x\u00e9t c\u1ea3 th\u1ee9c \u0103n l\u1eabn \u0111i\u1ec1u ki\u1ec7n nu\u00f4i, tr\u00e1nh k\u1ebft lu\u1eadn ch\u1ec9 t\u1eeb m\u1ed9t ch\u1ec9 s\u1ed1 ri\u00eang l\u1ebb.<\/p>\n<p>Khi trao \u0111\u1ed5i v\u1edbi c\u00e1n b\u1ed9 k\u1ef9 thu\u1eadt ho\u1eb7c \u0111\u01a1n v\u1ecb cung c\u1ea5p th\u1ee9c \u0103n, n\u00ean s\u1eed d\u1ee5ng nh\u1eefng th\u00f4ng tin n\u00e0y l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 c\u00f9ng x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n v\u00e0 l\u1ef1a ch\u1ecdn h\u01b0\u1edbng \u0111i\u1ec1u ch\u1ec9nh.<\/p>\n<h2 id=\"4-danh-gia-fcr-cung-hieu-qua-ca-vu-nuoi\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">4. \u0110\u00e1nh gi\u00e1 FCR c\u00f9ng hi\u1ec7u qu\u1ea3 c\u1ea3 v\u1ee5 nu\u00f4i<\/span><\/h2>\n<p>FCR c\u1ea7n \u0111\u01b0\u1ee3c xem c\u00f9ng <strong>t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng, c\u1ee1 thu ho\u1ea1ch, t\u1ef7 l\u1ec7 s\u1ed1ng, th\u1eddi gian nu\u00f4i, s\u1ea3n l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<\/strong>, thay v\u00ec \u0111\u1ee9ng ri\u00eang tr\u00ean b\u1ea3ng k\u1ebft qu\u1ea3.<sup>[1]<\/sup><\/p>\n<p>Nghi\u00ean c\u1ee9u c\u1ee7a Dela Cruz v\u00e0 c\u1ed9ng s\u1ef1 (2025) v\u1ec1 nu\u00f4i gh\u00e9p c\u00e1 r\u00f4 phi &#8211; t\u00f4m c\u00e0ng xanh cho th\u1ea5y nh\u00f3m \u0103n \u1edf m\u1ee9c <strong>50\u201375% m\u1ee9c no<\/strong> c\u00f3 FCR c\u00e1 r\u00f4 phi th\u1ea5p h\u01a1n; nh\u00f3m \u0103n no c\u00f3 n\u0103ng su\u1ea5t cao h\u01a1n. Tuy nhi\u00ean, ph\u00e2n t\u00edch kinh t\u1ebf l\u1ea1i ghi nh\u1eadn l\u1ee3i nhu\u1eadn t\u1ed1t h\u01a1n v\u1edbi h\u1ec7 th\u1ed1ng ao truy\u1ec1n th\u1ed1ng v\u00e0 m\u1ee9c \u0103n h\u1ea1n ch\u1ebf, nh\u1edd chi ph\u00ed th\u1ea5p h\u01a1n. V\u00ec v\u1eady, kh\u00f4ng th\u1ec3 d\u00f9ng nghi\u00ean c\u1ee9u n\u00e0y \u0111\u1ec3 k\u1ebft lu\u1eadn gi\u1ea3m kh\u1ea9u ph\u1ea7n lu\u00f4n l\u00e0m gi\u1ea3m l\u1ee3i nhu\u1eadn, c\u0169ng kh\u00f4ng n\u00ean bi\u1ebfn m\u1ee9c \u0103n \u0111\u00f3 th\u00e0nh khuy\u1ebfn ngh\u1ecb chung.<sup>[6]<\/sup><\/p>\n<p><strong>M\u1ee5c ti\u00eau c\u1ea7n h\u01b0\u1edbng \u0111\u1ebfn l\u00e0 ph\u01b0\u01a1ng \u00e1n nu\u00f4i c\u00f3 hi\u1ec7u qu\u1ea3 t\u1ed5ng th\u1ec3 t\u1ed1t h\u01a1n, kh\u00f4ng ch\u1ec9 m\u1ed9t con s\u1ed1 FCR th\u1ea5p h\u01a1n.<\/strong><\/p>\n<h2 id=\"5-cai-thien-fcr-bang-nhung-thay-doi-thuc-chat-tai-ao\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">5. C\u1ea3i thi\u1ec7n FCR b\u1eb1ng nh\u1eefng thay \u0111\u1ed5i th\u1ef1c ch\u1ea5t t\u1ea1i ao<\/span><\/h2>\n<p>Th\u1ee9c \u0103n ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u ki\u1ec7n ph\u00f9 h\u1ee3p. M\u00f4i tr\u01b0\u1eddng \u1ed5n \u0111\u1ecbnh, v\u1eadt nu\u00f4i kh\u1ecfe, h\u1ea1n ch\u1ebf hao h\u1ee5t, cho \u0103n s\u00e1t nhu c\u1ea7u v\u00e0 ghi nh\u1eadn s\u1ed1 li\u1ec7u ch\u00ednh x\u00e1c l\u00e0 nh\u1eefng n\u1ed9i dung ng\u01b0\u1eddi nu\u00f4i c\u1ea7n ch\u00fa tr\u1ecdng c\u00f9ng v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn th\u1ee9c \u0103n.<sup>[1]<\/sup><\/p>\n<p>V\u00ec v\u1eady, h\u00e3y ti\u1ebfp t\u1ee5c theo d\u00f5i FCR, nh\u01b0ng \u0111\u1ed3ng th\u1eddi t\u00ecm hi\u1ec3u nh\u1eefng y\u1ebfu t\u1ed1 t\u1ea1o ra ch\u1ec9 s\u1ed1 \u0111\u00f3. M\u1ed7i l\u1ea7n \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 ao nu\u00f4i n\u00ean l\u00e0 c\u01a1 h\u1ed9i nh\u1eadn di\u1ec7n \u0111i\u1ec1u c\u00f3 th\u1ec3 l\u00e0m t\u1ed1t h\u01a1n, thay v\u00ec ch\u1ec9 so s\u00e1nh FCR gi\u1eefa c\u00e1c ao.<\/p>\n<div style=\"background:#0b4028;color:#fff;border-radius:8px;padding:18px;margin:18px 0;text-align:center;font-weight:700;line-height:1.6\">Mu\u1ed1n c\u1ea3i thi\u1ec7n FCR, h\u00e3y qu\u1ea3n l\u00fd t\u1ed1t nh\u1eefng y\u1ebfu t\u1ed1 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn FCR. Mu\u1ed1n n\u00e2ng hi\u1ec7u qu\u1ea3 v\u1ee5 nu\u00f4i, h\u00e3y \u0111\u00e1nh gi\u00e1 c\u1ea3 t\u0103ng tr\u01b0\u1edfng, t\u1ef7 l\u1ec7 s\u1ed1ng, th\u1eddi gian v\u00e0 chi ph\u00ed.<\/div>\n<h2 id=\"tai-lieu-tham-khao\"><span style=\"display:block;color:#0b6b34;padding-bottom:8px;border-bottom:3px solid #4a9d3f\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/span><\/h2>\n<p style=\"margin:0 0 8px;line-height:1.6\">[1] FCR th\u1ea5p kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 do nu\u00f4i t\u1ed1t. B\u1ea3n th\u1ea3o, 6 trang.<\/p>\n<p style=\"margin:0 0 8px;line-height:1.6\">[2] Boyd, C. E. (2021). A low feed conversion ratio is the primary indicator of efficient aquaculture. Responsible Seafood Advocate, Global Seafood Alliance. <a style=\"color:#0b6b34;text-decoration:underline\" href=\"https:\/\/www.globalseafood.org\/advocate\/a-low-feed-conversion-ratio-is-the-primary-indicator-of-efficient-aquaculture\/\" target=\"_blank\" rel=\"noopener\">B\u00e0i vi\u1ebft g\u1ed1c<\/a><\/p>\n<p style=\"margin:0 0 8px;line-height:1.6\">[3] Mengistu, S. B., Mulder, H. A., Benzie, J. A. H., &amp; Komen, H. (2020). A systematic literature review of the major factors causing yield gap by affecting growth, feed conversion ratio and survival in Nile tilapia (Oreochromis niloticus). Reviews in Aquaculture, 12(2), 524\u2013541. <a style=\"color:#0b6b34;text-decoration:underline\" href=\"https:\/\/doi.org\/10.1111\/raq.12331\" target=\"_blank\" rel=\"noopener\">DOI: 10.1111\/raq.12331<\/a><\/p>\n<p style=\"margin:0 0 8px;line-height:1.6\">[4] Gan, L., Liu, Y. J., Tian, L. X., Yang, H. J., Liu, F. J., Chen, Y. J., &amp; Liang, G. Y. (2013). Effects of dissolved oxygen and dietary lysine levels on growth performance, feed conversion ratio and body composition of grass carp, Ctenopharyngodon idella. Aquaculture Nutrition, 19(6), 860\u2013869. <a style=\"color:#0b6b34;text-decoration:underline\" href=\"https:\/\/doi.org\/10.1111\/anu.12030\" target=\"_blank\" rel=\"noopener\">DOI: 10.1111\/anu.12030<\/a><\/p>\n<p style=\"margin:0 0 8px;line-height:1.6\">[5] Boyd, C. E., &amp; Hanson, T. (2010). Dissolved oxygen concentrations in pond aquaculture. Responsible Seafood Advocate, Global Seafood Alliance. <a style=\"color:#0b6b34;text-decoration:underline\" href=\"https:\/\/www.globalseafood.org\/advocate\/dissolved-oxygen-concentrations-pond-aquaculture\/\" target=\"_blank\" rel=\"noopener\">B\u00e0i vi\u1ebft g\u1ed1c<\/a><\/p>\n<p style=\"margin:0 0 8px;line-height:1.6\">[6] Dela Cruz v\u00e0 c\u1ed9ng s\u1ef1 (2025). Effects of restricted feeding rates on growth, production, and economics of Nile tilapia and giant freshwater prawn polyculture in pond-based biofloc and traditional grow-out system. Aquaculture International. <a style=\"color:#0b6b34;text-decoration:underline\" href=\"https:\/\/doi.org\/10.1007\/s10499-025-01833-z\" target=\"_blank\" rel=\"noopener\">DOI: 10.1007\/s10499-025-01833-z<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ch\u00fa tr\u1ecdng m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc, s\u1ee9c kh\u1ecfe v\u1eadt nu\u00f4i, c\u00e1ch cho \u0103n v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a s\u1ed1 li\u1ec7u \u0111\u1ec3 n\u00e2ng hi\u1ec7u qu\u1ea3 c\u1ea3 v\u1ee5 nu\u00f4i.<\/p>\n","protected":false},"author":1,"featured_media":3449,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-3635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tu-lieu-ky-thuat"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/3635","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=3635"}],"version-history":[{"count":2,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/3635\/revisions"}],"predecessor-version":[{"id":3637,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/posts\/3635\/revisions\/3637"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/media\/3449"}],"wp:attachment":[{"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/media?parent=3635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/categories?post=3635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.greenfeed.com.vn\/thuy-san\/wp-json\/wp\/v2\/tags?post=3635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}