{"id":7938,"date":"2025-12-08T15:45:36","date_gmt":"2025-12-08T08:45:36","guid":{"rendered":"https:\/\/apanano.com\/vi\/?p=7938"},"modified":"2025-12-08T15:45:36","modified_gmt":"2025-12-08T08:45:36","slug":"quan-ly-co%e2%82%82-do-am-va-thong-gio-trong-ap-trung-yeu-to-quyet-dinh-thanh-cong","status":"publish","type":"post","link":"https:\/\/apanano.vn\/en\/quan-ly-co%e2%82%82-do-am-va-thong-gio-trong-ap-trung-yeu-to-quyet-dinh-thanh-cong\/","title":{"rendered":"Qu\u1ea3n l\u00fd CO\u2082, \u0111\u1ed9 \u1ea9m v\u00e0 th\u00f4ng gi\u00f3 trong \u1ea5p tr\u1ee9ng \u2013 Y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh th\u00e0nh c\u00f4ng"},"content":{"rendered":"

1. T\u00e1c \u0111\u1ed9ng c\u1ee7a carbon dioxide (CO\u2082) trong m\u00e1y \u1ea5p k\u00edn<\/strong><\/p>\n

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Trong m\u00f4i tr\u01b0\u1eddng m\u00e1y \u1ea5p k\u00edn ho\u00e0n to\u00e0n, n\u1ed3ng \u0111\u1ed9 CO\u2082 c\u00f3 th\u1ec3 t\u0103ng l\u00ean \u0111\u1ebfn 5,000-6,000 ppm ch\u1ec9 sau v\u00e0i ng\u00e0y, do tr\u1ee9ng li\u00ean t\u1ee5c th\u1ea3i kh\u00ed CO\u2082 ra m\u00f4i tr\u01b0\u1eddng xung quanh. S\u1ef1 gia t\u0103ng n\u00e0y kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a tr\u1ee9ng m\u00e0 c\u00f2n t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i. M\u1ed9t trong nh\u1eefng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 pH c\u1ee7a l\u00f2ng tr\u1eafng tr\u1ee9ng, \u0111i\u1ec1u n\u00e0y l\u1ea1i \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 chuy\u00ean gia \u1ea5p n\u1edf coi l\u00e0 c\u00f3 l\u1ee3i. \u1ede giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, n\u1ed3ng \u0111\u1ed9 CO\u2082 cao c\u00f3 th\u1ec3 k\u00edch th\u00edch s\u1ef1 h\u00ecnh th\u00e0nh m\u1ea1ch m\u00e1u trong ph\u00f4i, gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng trao \u0111\u1ed5i ch\u1ea5t. V\u00ec l\u00fd do n\u00e0y, m\u1ed9t s\u1ed1 tr\u1ea1i \u1ea5p c\u00f2n ch\u1ee7 \u0111\u1ed9ng b\u01a1m CO\u2082 v\u00e0o m\u00e1y \u1ea5p \u0111\u1ec3 t\u1eadn d\u1ee5ng hi\u1ec7u \u1ee9ng n\u00e0y.<\/p>\n

\"\"<\/p>\n

L\u1ee3i d\u1ee5ng kh\u1ea3 n\u0103ng th\u00edch nghi c\u1ee7a ph\u00f4i v\u1edbi CO\u2082 cao<\/strong><\/p>\n

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Ph\u00f4i gia c\u1ea7m c\u00f3 kh\u1ea3 n\u0103ng th\u00edch nghi nh\u1ea5t \u0111\u1ecbnh v\u1edbi n\u1ed3ng \u0111\u1ed9 CO\u2082 cao trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n. \u0110\u1ec3 t\u1eadn d\u1ee5ng \u0111i\u1ec1u n\u00e0y, m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nh\u01b0 \u0111\u00f3ng k\u00edn l\u1ed7 th\u00f4ng kh\u00ed v\u00e0 \u0111i\u1ec1u ch\u1ec9nh m\u00f4 h\u00ecnh m\u1ea5t tr\u1ecdng l\u01b0\u1ee3ng tr\u1ee9ng theo h\u01b0\u1edbng kh\u00f4ng tuy\u1ebfn t\u00ednh. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y c\u0169ng \u0111\u1eb7t ra m\u1ed9t s\u1ed1 th\u00e1ch th\u1ee9c. Trong nh\u1eefng ng\u00e0y \u0111\u1ea7u ti\u00ean, tr\u1ee9ng s\u1ebd m\u1ea5t \u00edt \u0111\u1ed9 \u1ea9m h\u01a1n, do \u0111\u00f3 c\u1ea7n c\u00f3 bi\u1ec7n ph\u00e1p b\u00f9 \u0111\u1eafp \u1edf giai \u0111o\u1ea1n sau. Khi ph\u00f4i ph\u00e1t tri\u1ec3n m\u1ea1nh h\u01a1n v\u00e0 b\u1eaft \u0111\u1ea7u s\u1ea3n sinh nhi\u1ec1u nhi\u1ec7t, c\u1ea7n t\u0103ng c\u01b0\u1eddng th\u00f4ng gi\u00f3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00f4i tr\u01b0\u1eddng t\u1ed1i \u01b0u. Tuy nhi\u00ean, th\u00f4ng gi\u00f3 qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 khi\u1ebfn m\u1ed9t s\u1ed1 tr\u1ee9ng b\u1ecb gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 qu\u00e1 nhanh, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1edf.<\/p>\n

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\u0110\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa vi\u1ec7c ki\u1ec3m so\u00e1t CO\u2082 v\u00e0 duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho ph\u00f4i, c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd th\u01b0\u1eddng m\u1edf l\u1ed7 th\u00f4ng kh\u00ed sau 3-4 ng\u00e0y \u0111\u1ea7u ti\u00ean. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 ki\u1ec3m so\u00e1t n\u1ed3ng \u0111\u1ed9 CO\u2082, \u0111\u1ed3ng th\u1eddi tr\u00e1nh vi\u1ec7c ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9t ng\u1ed9t trong giai \u0111o\u1ea1n sau c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p.<\/p>\n

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Thi\u1ebft l\u1eadp ng\u01b0\u1ee1ng CO\u2082 t\u1ed1i \u0111a trong m\u00e1y \u1ea5p<\/strong><\/p>\n

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H\u1ea7u h\u1ebft c\u00e1c m\u00e1y \u1ea5p hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ec3 duy tr\u00ec n\u1ed3ng \u0111\u1ed9 CO\u2082 kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 4,000 ppm. H\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c CO\u2082 trong kh\u00f4ng kh\u00ed. L\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed c\u1ea7n thi\u1ebft cho m\u00e1y \u1ea5p ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 th\u1eddi gian \u1ea5p, gi\u1ed1ng lo\u00e0i, k\u00edch th\u01b0\u1edbc tr\u1ee9ng, ch\u1ea5t l\u01b0\u1ee3ng v\u1ecf tr\u1ee9ng, v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n sinh nhi\u1ec7t c\u1ee7a ph\u00f4i. \u0110\u1ec3 t\u00ednh to\u00e1n hi\u1ec7u qu\u1ea3, c\u1ea7n xem x\u00e9t c\u1ea3 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a kh\u00f4ng kh\u00ed b\u00ean ngo\u00e0i, \u0111\u1eb7c bi\u1ec7t l\u00e0 nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m, v\u00ec s\u1ef1 dao \u0111\u1ed9ng qu\u00e1 l\u1edbn c\u1ee7a c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng trong m\u00e1y \u1ea5p.<\/p>\n

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V\u00ed d\u1ee5, n\u1ebfu nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i dao \u0111\u1ed9ng t\u1eeb 25-27\u00b0C, n\u1ed3ng \u0111\u1ed9 CO\u2082 trong kh\u00f4ng kh\u00ed ngo\u00e0i tr\u1eddi kho\u1ea3ng 300-500 ppm v\u00e0 \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u1edf m\u1ee9c 50-55%, th\u00ec m\u00e1y \u1ea5p c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu t\u1ed1i \u01b0u m\u00e0 kh\u00f4ng c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 nhi\u1ec1u.<\/p>\n

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CO\u2082 trong t\u00fai Kh\u00ed c\u1ee7a tr\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a ph\u00f4i<\/strong><\/p>\n

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Trong qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n, kh\u00f4ng kh\u00ed trong t\u00fai kh\u00ed c\u1ee7a tr\u1ee9ng lu\u00f4n b\u00e3o h\u00f2a \u0111\u1ed9 \u1ea9m v\u00e0 c\u00f3 n\u1ed3ng \u0111\u1ed9 CO\u2082 cao h\u01a1n so v\u1edbi kh\u00f4ng kh\u00ed trong m\u00e1y \u1ea5p. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea3o v\u1ec7 ph\u00f4i v\u00e0 h\u1ed7 tr\u1ee3 s\u1ef1 ph\u00e1t tri\u1ec3n b\u00ecnh th\u01b0\u1eddng c\u1ee7a n\u00f3. \u0110\u1ed1i v\u1edbi ph\u00f4i g\u00e0 th\u1ecbt (broiler), c\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y ch\u00fang c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng n\u1ed3ng \u0111\u1ed9 CO\u2082 l\u00ean \u0111\u1ebfn 1.4% (t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 14,000 ppm) trong 10 ng\u00e0y \u0111\u1ea7u ti\u00ean m\u00e0 kh\u00f4ng g\u1eb7p b\u1ea5t k\u1ef3 \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c n\u00e0o. V\u00ec v\u1eady, trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng h\u01a1n so v\u1edbi ki\u1ec3m so\u00e1t n\u1ed3ng \u0111\u1ed9 CO\u2082.<\/p>\n

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Chi\u1ebfn l\u01b0\u1ee3c th\u00f4ng gi\u00f3 trong qu\u00e1 tr\u00ecnh \u1ea5p<\/strong><\/p>\n

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Giai \u0111o\u1ea1n \u0111\u1ea7u (0-4 ng\u00e0y):<\/strong><\/p>\n

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Trong nh\u1eefng ng\u00e0y \u0111\u1ea7u ti\u00ean, m\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a th\u00f4ng gi\u00f3 l\u00e0 lo\u1ea1i b\u1ecf \u0111\u1ed9 \u1ea9m d\u01b0 th\u1eeba thay v\u00ec gi\u1ea3m CO\u2082. Khi c\u1eeda m\u00e1y \u1ea5p \u0111\u01b0\u1ee3c \u0111\u00f3ng k\u00edn, m\u1ee9c \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 65%, nh\u01b0ng \u0111i\u1ec1u n\u00e0y v\u1eabn n\u1eb1m trong gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ec3 duy tr\u00ec s\u1ef1 ph\u00e1t tri\u1ec3n t\u1ed1i \u01b0u c\u1ee7a ph\u00f4i.<\/p>\n

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Giai \u0111o\u1ea1n sau (t\u1eeb ng\u00e0y 5 tr\u1edf \u0111i):<\/strong><\/p>\n

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Khi qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i ti\u1ebfn tri\u1ec3n, nhu c\u1ea7u \u0111i\u1ec1u ch\u1ec9nh n\u1ed3ng \u0111\u1ed9 CO\u2082 tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n. N\u1ebfu m\u1ee9c CO\u2082 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n mong mu\u1ed1n, h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 s\u1ebd \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u0111\u1ec3 gi\u1ea3m n\u1ed3ng \u0111\u1ed9 kh\u00ed n\u00e0y xu\u1ed1ng m\u1ee9c t\u1ed1i \u01b0u. \u0110\u1ed3ng th\u1eddi, vi\u1ec7c c\u00e2n b\u1eb1ng nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00f4i ph\u00e1t tri\u1ec3n kh\u1ecfe m\u1ea1nh v\u00e0 t\u1ed1i \u0111a h\u00f3a t\u1ef7 l\u1ec7 n\u1edf.<\/p>\n

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2. Vai tr\u00f2 c\u1ee7a \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) trong qu\u00e1 tr\u00ecnh \u1ea5p<\/strong><\/p>\n

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\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u1ea5p tr\u1ee9ng, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i v\u00e0 t\u1ef7 l\u1ec7 n\u1edf. RH \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ph\u1ea7n tr\u0103m, ph\u1ea3n \u00e1nh l\u01b0\u1ee3ng \u1ea9m t\u1ed1i \u0111a m\u00e0 kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 gi\u1eef \u1edf m\u1ed9t nhi\u1ec7t \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh. Khi nhi\u1ec7t \u0111\u1ed9 gi\u1ea3m, kh\u00f4ng kh\u00ed c\u00f3 xu h\u01b0\u1edbng gi\u1eef \u00edt h\u01a1i \u1ea9m h\u01a1n, \u0111i\u1ec1u n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc khi thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng \u1ea5p.<\/p>\n

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C\u00e0i \u0111\u1eb7t ch\u01b0\u01a1ng tr\u00ecnh RH cho t\u1eebng giai \u0111o\u1ea1n \u1ea5p<\/strong><\/p>\n

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Giai \u0111o\u1ea1n l\u01b0u tr\u1eef tr\u1ee9ng:<\/strong>\u00a0\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o tr\u1ee9ng kh\u00f4ng b\u1ecb m\u1ea5t n\u01b0\u1edbc ho\u1eb7c ph\u00f4i ph\u00e1t tri\u1ec3n qu\u00e1 m\u1ee9c trong th\u1eddi gian b\u1ea3o qu\u1ea3n, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i c\u1ea7n \u0111\u01b0\u1ee3c duy tr\u00ec trong kho\u1ea3ng 60-80%, v\u1edbi nhi\u1ec7t \u0111\u1ed9 t\u1eeb 16-18\u00b0C. \u1ede m\u1ee9c nhi\u1ec7t \u0111\u1ed9 n\u00e0y, kh\u00f4ng kh\u00ed c\u00f3 kh\u1ea3 n\u0103ng gi\u1eef \u1ea9m t\u1ed1t v\u00e0 \u00edt c\u00f3 nguy c\u01a1 l\u00e0m kh\u00f4 tr\u1ee9ng. Vi\u1ec7c t\u1ea1o \u1ea9m th\u01b0\u1eddng kh\u00f4ng c\u1ea7n thi\u1ebft trong giai \u0111o\u1ea1n n\u00e0y do nhi\u1ec7t \u0111\u1ed9 th\u1ea5p d\u01b0\u1edbi ng\u01b0\u1ee1ng sinh l\u00fd c\u1ee7a ph\u00f4i (22-25\u00b0C).<\/p>\n

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Giai \u0111o\u1ea1n \u0111\u1eb7t tr\u1ee9ng (Setting):<\/strong>\u00a0Khi tr\u1ee9ng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y \u1ea5p, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf m\u1ee9c 50-55% \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tr\u1ee9ng m\u1ea5t n\u01b0\u1edbc \u1edf m\u1ee9c h\u1ee3p l\u00fd, gi\u00fap ph\u00f4i ph\u00e1t tri\u1ec3n \u1ed5n \u0111\u1ecbnh. \u1ede nhi\u1ec7t \u0111\u1ed9 37.8-38\u00b0C, tr\u1ee9ng th\u01b0\u1eddng m\u1ea5t t\u1eeb 0.6-0.7% tr\u1ecdng l\u01b0\u1ee3ng m\u1ed7i ng\u00e0y. M\u1ee9c RH n\u00e0y c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u00f9y theo ch\u1ea5t l\u01b0\u1ee3ng v\u1ecf tr\u1ee9ng, k\u00edch th\u01b0\u1edbc tr\u1ee9ng, lo\u1ea1i m\u00e1y \u1ea5p v\u00e0 kinh nghi\u1ec7m t\u1eeb nh\u1eefng l\u1ea7n \u1ea5p tr\u01b0\u1edbc.<\/p>\n

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Giai \u0111o\u1ea1n n\u1edf (Hatching):<\/strong>\u00a0Trong 2 ng\u00e0y cu\u1ed1i tr\u01b0\u1edbc khi n\u1edf, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i c\u1ea7n \u0111\u01b0\u1ee3c t\u0103ng l\u00ean 75-80% \u0111\u1ec3 h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng m\u1ea5t n\u01b0\u1edbc c\u1ee7a ph\u00f4i, gi\u00fap v\u1ecf tr\u1ee9ng m\u1ec1m h\u01a1n, h\u1ed7 tr\u1ee3 g\u00e0 con \u0111\u1ee5c v\u1ecf m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. Tuy nhi\u00ean, vi\u1ec7c t\u0103ng RH c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t c\u1ea9n th\u1eadn, v\u00ec phun s\u01b0\u01a1ng ho\u1eb7c t\u1ea1o \u1ea9m qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 trong m\u00e1y. Th\u00f4ng gi\u00f3 trong giai \u0111o\u1ea1n n\u00e0y c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh h\u1ee3p l\u00fd \u0111\u1ec3 duy tr\u00ec m\u1ee9c CO\u2082 kho\u1ea3ng 0.4-0.5%, gi\u00fap t\u1ed1i \u01b0u \u0111i\u1ec1u ki\u1ec7n n\u1edf tr\u1ee9ng m\u00e0 kh\u00f4ng g\u00e2y m\u1ea5t nhi\u1ec7t.<\/p>\n

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Giai \u0111o\u1ea1n gi\u1eef g\u00e0 con (Chick Holding):<\/strong>\u00a0Khi g\u00e0 con \u0111\u00e3 n\u1edf, \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng kho\u1ea3ng 50-60% \u0111\u1ec3 gi\u00fap g\u00e0 kh\u00f4 l\u00f4ng nhanh ch\u00f3ng nh\u01b0ng v\u1eabn gi\u1eef \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 c\u01a1 th\u1ec3 \u1ed5n \u0111\u1ecbnh. Trong giai \u0111o\u1ea1n n\u00e0y, m\u00e1y t\u1ea1o \u0111\u1ed9 \u1ea9m th\u01b0\u1eddng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng, v\u00e0 vi\u1ec7c ki\u1ec3m so\u00e1t th\u00f4ng gi\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh c\u1ea9n th\u1eadn \u0111\u1ec3 tr\u00e1nh t\u1ea1o hi\u1ec7u \u1ee9ng \u201cgi\u00f3 l\u1ea1nh\u201d, khi\u1ebfn g\u00e0 con b\u1ecb m\u1ea5t nhi\u1ec7t. \u0110\u1ed3ng th\u1eddi, nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng gi\u1eef g\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c duy tr\u00ec \u1ed5n \u0111\u1ecbnh, kh\u00f4ng qu\u00e1 n\u00f3ng c\u0169ng kh\u00f4ng qu\u00e1 l\u1ea1nh, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ee9c kh\u1ecfe c\u1ee7a \u0111\u00e0n g\u00e0 tr\u01b0\u1edbc khi \u0111\u01b0a ra tr\u1ea1i.<\/p>\n

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M\u1ea5t tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a tr\u1ee9ng v\u00e0 c\u00e0i \u0111\u1eb7t m\u00e1y \u1ea5p<\/strong><\/p>\n

 <\/p>\n

Trong qu\u00e1 tr\u00ecnh \u1ea5p, tr\u1ee9ng s\u1ebd m\u1ea5t trung b\u00ecnh kho\u1ea3ng 10-12% tr\u1ecdng l\u01b0\u1ee3ng do m\u1ea5t n\u01b0\u1edbc qua v\u1ecf tr\u1ee9ng. Ch\u1eb3ng h\u1ea1n, m\u1ed9t qu\u1ea3 tr\u1ee9ng n\u1eb7ng 60g c\u00f3 th\u1ec3 gi\u1ea3m t\u1eeb 6-7g sau 18 ng\u00e0y n\u1ebfu \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf nhi\u1ec7t \u0111\u1ed9 37.8\u00b0C v\u00e0 \u0111\u1ed9 \u1ea9m RH 55%.<\/p>\n

 <\/p>\n

C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t s\u1ef1 m\u1ea5t \u0111\u1ed9 \u1ea9m n\u00e0y:<\/p>\n

 <\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p tuy\u1ebfn t\u00ednh:<\/strong>\u00a0Gi\u1eef \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u1ed5n \u0111\u1ecbnh trong su\u1ed1t qu\u00e1 tr\u00ecnh \u1ea5p, gi\u00fap ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd t\u1ed1c \u0111\u1ed9 m\u1ea5t n\u01b0\u1edbc c\u1ee7a tr\u1ee9ng.<\/p>\n

 <\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p phi tuy\u1ebfn t\u00ednh:<\/strong>\u00a0\u0110\u00f3ng k\u00edn l\u1ed7 th\u00f4ng kh\u00ed trong nh\u1eefng ng\u00e0y \u0111\u1ea7u \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 \u1ea9m cao, sau \u0111\u00f3 d\u1ea7n t\u0103ng th\u00f4ng gi\u00f3 \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111\u1ed9 \u1ea9m d\u01b0 th\u1eeba. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y gi\u00fap duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u trong giai \u0111o\u1ea1n \u0111\u1ea7u nh\u01b0ng \u0111\u00f2i h\u1ecfi ph\u1ea3i ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng m\u1ea5t n\u01b0\u1edbc qu\u00e1 nhanh v\u00e0o cu\u1ed1i giai \u0111o\u1ea1n \u1ea5p.<\/p>\n

 <\/p>\n

\u0110\u1eb7c bi\u1ec7t, n\u1ebfu tr\u1ee9ng m\u1ea5t qu\u00e1 nhi\u1ec1u \u0111\u1ed9 \u1ea9m trong giai \u0111o\u1ea1n cu\u1ed1i (ng\u00e0y 17-18), ph\u00f4i c\u00f3 nguy c\u01a1 b\u1ecb m\u1ea5t n\u01b0\u1edbc, l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 n\u1edf. Do \u0111\u00f3, t\u1eeb ng\u00e0y 12 tr\u1edf \u0111i, c\u1ea7n t\u0103ng c\u01b0\u1eddng th\u00f4ng gi\u00f3 h\u1ee3p l\u00fd \u0111\u1ec3 ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng n\u00e0y.<\/p>\n

 <\/p>\n

Ki\u1ec3m so\u00e1t th\u00f4ng gi\u00f3 \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m<\/strong><\/p>\n

 <\/p>\n

Th\u00f4ng gi\u00f3 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng gi\u00fap \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m trong m\u00e1y \u1ea5p. B\u1eb1ng c\u00e1ch t\u00ednh to\u00e1n l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed c\u1ea7n thi\u1ebft, nh\u00e0 qu\u1ea3n l\u00fd c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c \u0111\u1ed9 \u1ea9m b\u00ean trong m\u00e1y.<\/p>\n

 <\/p>\n

V\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi m\u1ed9t l\u00f4 57,600 tr\u1ee9ng, c\u1ea7n lo\u1ea1i b\u1ecf kho\u1ea3ng 0.8-1.0 l\u00edt n\u01b0\u1edbc m\u1ed7i gi\u1edd \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 \u1ea9m t\u1ed1i \u01b0u. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i l\u00e0 25\u00b0C v\u00e0 RH 50%, th\u00ec c\u1ea7n duy tr\u00ec l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed th\u00f4ng gi\u00f3 kho\u1ea3ng 800-1,000 m\u00b3\/gi\u1edd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ki\u1ec7n ph\u00f9 h\u1ee3p cho ph\u00f4i ph\u00e1t tri\u1ec3n.<\/p>\n

 <\/p>\n

\u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng m\u00e1y t\u1ea1o \u1ea9m trong giai \u0111o\u1ea1n \u1ea5p, v\u00ec m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt c\u00f3 th\u1ec3 l\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u00fd t\u01b0\u1edfng cho vi khu\u1ea9n ph\u00e1t tri\u1ec3n, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u1edf v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a g\u00e0 con.<\/p>\n

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\u0110o l\u01b0\u1eddng s\u1ef1 m\u1ea5t \u0111\u1ed9 \u1ea9m trong qu\u00e1 tr\u00ecnh \u1ea5p<\/strong><\/p>\n

 <\/p>\n

M\u1ed9t trong nh\u1eefng c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 m\u1ee9c \u0111\u1ed9 m\u1ea5t \u0111\u1ed9 \u1ea9m c\u1ee7a tr\u1ee9ng trong qu\u00e1 tr\u00ecnh \u1ea5p l\u00e0 theo d\u00f5i k\u00edch th\u01b0\u1edbc c\u1ee7a bu\u1ed3ng kh\u00ed. Trong su\u1ed1t qu\u00e1 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i, bu\u1ed3ng kh\u00ed b\u00ean trong tr\u1ee9ng s\u1ebd d\u1ea7n m\u1edf r\u1ed9ng do s\u1ef1 b\u1ed1c h\u01a1i n\u01b0\u1edbc. V\u00e0o ng\u00e0y th\u1ee9 7, bu\u1ed3ng kh\u00ed v\u1eabn c\u00f2n nh\u1ecf, \u0111\u1ebfn ng\u00e0y 14 k\u00edch th\u01b0\u1edbc bu\u1ed3ng kh\u00ed trung b\u00ecnh, v\u00e0 \u0111\u1ebfn ng\u00e0y 18, n\u00f3 \u0111\u1ea1t m\u1ee9c l\u1edbn nh\u1ea5t. Vi\u1ec7c quan s\u00e1t s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a bu\u1ed3ng kh\u00ed gi\u00fap x\u00e1c \u0111\u1ecbnh xem \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) trong m\u00e1y \u1ea5p c\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p hay kh\u00f4ng.<\/p>\n

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M\u1eb7c d\u00f9 m\u1ea5t \u0111\u1ed9 \u1ea9m trung b\u00ecnh l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh \u1ea5p, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3n \u00e1nh ho\u00e0n to\u00e0n ch\u1ea5t l\u01b0\u1ee3ng v\u1ecf tr\u1ee9ng. Khi \u0111\u00e1nh gi\u00e1 m\u1ee9c m\u1ea5t n\u01b0\u1edbc, c\u1ea7n quan s\u00e1t s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c tr\u1ee9ng trong c\u00f9ng m\u1ed9t l\u00f4 thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o gi\u00e1 tr\u1ecb trung b\u00ecnh theo khay \u1ea5p. S\u1ef1 m\u1ea5t n\u01b0\u1edbc kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u00f3 th\u1ec3 l\u00e0 d\u1ea5u hi\u1ec7u c\u1ee7a nh\u1eefng kh\u00e1c bi\u1ec7t v\u1ec1 c\u1ea5u tr\u00fac v\u1ecf tr\u1ee9ng, \u0111\u1ed9 d\u00e0y m\u00e0ng v\u1ecf ho\u1eb7c kh\u1ea3 n\u0103ng tho\u00e1t h\u01a1i n\u01b0\u1edbc c\u1ee7a t\u1eebng tr\u1ee9ng, \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh RH m\u1ed9t c\u00e1ch linh ho\u1ea1t.<\/p>\n

 <\/p>\n

\u0110i\u1ec1u ch\u1ec9nh RH \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u00e1t tri\u1ec3n t\u1ed1t nh\u1ea5t c\u1ee7a ph\u00f4i<\/strong><\/p>\n

 <\/p>\n

Trong nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, duy tr\u00ec \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i cao kh\u00f4ng ch\u1ec9 gi\u00fap ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 m\u1ea5t n\u01b0\u1edbc c\u1ee7a tr\u1ee9ng m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n s\u1ef1 \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 nhi\u1ec7t \u0111\u1ed9 gi\u1eefa c\u00e1c tr\u1ee9ng. \u0110i\u1ec1u n\u00e0y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i v\u00e0 gi\u1ea3m nguy c\u01a1 m\u1ea5t n\u01b0\u1edbc qu\u00e1 m\u1ee9c trong giai \u0111o\u1ea1n s\u1edbm. Tuy nhi\u00ean, \u1edf nh\u1eefng ng\u00e0y cu\u1ed1i c\u1ee7a giai \u0111o\u1ea1n \u1ea5p, RH c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng \u0111\u1ec3 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh n\u1edf, \u0111\u1ed3ng th\u1eddi gi\u00e1m s\u00e1t ch\u1eb7t ch\u1ebd ch\u1ea5t l\u01b0\u1ee3ng g\u00e0 con \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng m\u1ea5t n\u01b0\u1edbc qu\u00e1 m\u1ee9c sau khi n\u1edf.<\/p>\n

 <\/p>\n

Ngo\u00e0i ra, m\u1ee9c m\u1ea5t tr\u1ecdng l\u01b0\u1ee3ng t\u1ed1i \u01b0u c\u1ee7a tr\u1ee9ng c\u00f2n b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi tu\u1ed5i c\u1ee7a \u0111\u00e0n g\u00e0 b\u1ed1 m\u1eb9. C\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y tr\u1ee9ng t\u1eeb nh\u1eefng \u0111\u00e0n g\u00e0 gi\u00e0 h\u01a1n c\u00f3 xu h\u01b0\u1edbng m\u1ea5t n\u01b0\u1edbc nhi\u1ec1u h\u01a1n so v\u1edbi tr\u1ee9ng t\u1eeb \u0111\u00e0n g\u00e0 tr\u1ebb. C\u1ee5 th\u1ec3, tr\u1ee9ng t\u1eeb \u0111\u00e0n g\u00e0 25-40 tu\u1ea7n tu\u1ed5i th\u01b0\u1eddng m\u1ea5t t\u1eeb 10-11% tr\u1ecdng l\u01b0\u1ee3ng trong su\u1ed1t qu\u00e1 tr\u00ecnh \u1ea5p, trong khi tr\u1ee9ng t\u1eeb \u0111\u00e0n g\u00e0 40-50 tu\u1ea7n tu\u1ed5i c\u00f3 m\u1ee9c m\u1ea5t n\u01b0\u1edbc cao h\u01a1n, kho\u1ea3ng 11-12%. \u0110\u1ed1i v\u1edbi \u0111\u00e0n g\u00e0 tr\u00ean 50 tu\u1ea7n tu\u1ed5i, m\u1ee9c m\u1ea5t tr\u1ecdng l\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1eeb 12-13%. V\u00ec v\u1eady, khi \u0111i\u1ec1u ch\u1ec9nh RH trong m\u00e1y \u1ea5p, c\u1ea7n xem x\u00e9t c\u1ea3 y\u1ebfu t\u1ed1 tu\u1ed5i c\u1ee7a \u0111\u00e0n g\u00e0 b\u1ed1 m\u1eb9 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho t\u1eebng l\u00f4 tr\u1ee9ng.<\/p>\n

 <\/p>\n

H\u1ec7 th\u1ed1ng c\u00e2n t\u1ef1 \u0111\u1ed9ng v\u00e0 ki\u1ec3m so\u00e1t m\u1ea5t \u0111\u1ed9 \u1ea9m trong \u1ea5p n\u1edf<\/strong><\/p>\n

 <\/p>\n

Qu\u1ea3n l\u00fd tr\u1ecdng l\u01b0\u1ee3ng tr\u1ee9ng trong qu\u00e1 tr\u00ecnh \u1ea5p \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c theo d\u00f5i m\u1ee9c \u0111\u1ed9 m\u1ea5t n\u01b0\u1edbc v\u00e0 t\u1ed1i \u01b0u h\u00f3a t\u1ef7 l\u1ec7 n\u1edf. H\u1ec7 th\u1ed1ng c\u00e2n t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c tr\u1ea1i \u1ea5p \u0111\u1ec3 \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c tr\u1ecdng l\u01b0\u1ee3ng tr\u1ee9ng v\u00e0 khay \u1ea5p. Hai ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn bao g\u1ed3m c\u00e2n khay \u2013 gi\u00fap t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng trung b\u00ecnh c\u1ee7a tr\u1ee9ng ngay trong m\u00e1y \u1ea5p, v\u00e0 c\u00e2n xe \u0111\u1ea9y \u2013 h\u1ed7 tr\u1ee3 \u0111o tr\u1ecdng l\u01b0\u1ee3ng to\u00e0n b\u1ed9 khay tr\u00ean xe \u0111\u1ea9y.<\/p>\n

 <\/p>\n

\u0110\u1ec3 ki\u1ec3m tra s\u1ef1 m\u1ea5t \u0111\u1ed9 \u1ea9m c\u1ee7a t\u1eebng qu\u1ea3 tr\u1ee9ng, m\u1ed9t s\u1ed1 tr\u1ee9ng (kho\u1ea3ng 4-6 qu\u1ea3) t\u1eeb m\u1ed9t v\u00e0i khay s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 v\u00e0 theo d\u00f5i trong su\u1ed1t qu\u00e1 tr\u00ecnh \u1ea5p. Tr\u1ee9ng \u0111\u01b0\u1ee3c c\u00e2n v\u00e0o ng\u00e0y \u0111\u1ea7u ti\u00ean (khi \u0111\u01b0a v\u00e0o m\u00e1y) v\u00e0 ng\u00e0y 18 (tr\u01b0\u1edbc khi chuy\u1ec3n sang m\u00e1y n\u1edf) v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c 0.1 gram. Vi\u1ec7c n\u00e0y gi\u00fap ph\u00e2n t\u00edch nguy\u00ean nh\u00e2n m\u1ed9t s\u1ed1 tr\u1ee9ng kh\u00f4ng n\u1edf, bao g\u1ed3m m\u1ea5t \u0111\u1ed9 \u1ea9m qu\u00e1 nhi\u1ec1u ho\u1eb7c qu\u00e1 \u00edt, t\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh ph\u1ea1m vi m\u1ea5t \u0111\u1ed9 \u1ea9m l\u00fd t\u01b0\u1edfng \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u1ef7 l\u1ec7 n\u1edf.<\/p>\n

 <\/p>\n

M\u1ee5c \u0111\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 trong \u1ea5p n\u1edf<\/strong><\/p>\n

 <\/p>\n

Th\u00f4ng gi\u00f3 trong m\u00e1y \u1ea5p kh\u00f4ng ch\u1ec9 \u0111\u00f3ng vai tr\u00f2 lo\u1ea1i b\u1ecf \u0111\u1ed9 \u1ea9m d\u01b0 th\u1eeba m\u00e0 c\u00f2n gi\u00fap duy tr\u00ec n\u1ed3ng \u0111\u1ed9 CO\u2082 v\u00e0 cung c\u1ea5p oxy cho ph\u00f4i. Trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, m\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a th\u00f4ng gi\u00f3 l\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i. Khi n\u1ed3ng \u0111\u1ed9 CO\u2082 t\u0103ng l\u00ean, h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 duy tr\u00ec m\u1ee9c kh\u00ed n\u00e0y \u1edf ng\u01b0\u1ee1ng an to\u00e0n, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o ph\u00f4i c\u00f3 \u0111\u1ee7 oxy \u0111\u1ec3 ph\u00e1t tri\u1ec3n kh\u1ecfe m\u1ea1nh.<\/p>\n

 <\/p>\n

V\u00ed d\u1ee5, n\u1ebfu th\u00f4ng gi\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u1edf 37\u00b0C v\u1edbi RH 55%, vi\u1ec7c lo\u1ea1i b\u1ecf qu\u00e1 nhi\u1ec1u \u0111\u1ed9 \u1ea9m c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t n\u01b0\u1edbc nhanh h\u01a1n m\u1ee9c c\u1ea7n thi\u1ebft. Khi \u0111\u00f3, c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh th\u00f4ng gi\u00f3 \u0111\u1ec3 gi\u1ea3m t\u1ed1c \u0111\u1ed9 m\u1ea5t n\u01b0\u1edbc, thay v\u00ec li\u00ean t\u1ee5c lo\u1ea1i b\u1ecf \u0111\u1ed9 \u1ea9m cao ngay t\u1eeb \u0111\u1ea7u. T\u01b0\u01a1ng t\u1ef1, trong giai \u0111o\u1ea1n cu\u1ed1i c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, khi tr\u1ee9ng s\u1ea3n sinh nhi\u1ec1u CO\u2082 h\u01a1n, h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 duy tr\u00ec m\u1ee9c CO\u2082 d\u01b0\u1edbi 4.000 ppm. M\u1ed9t l\u00f4 57.600 tr\u1ee9ng c\u00f3 th\u1ec3 s\u1ea3n sinh kho\u1ea3ng 18,5 mL CO\u2082 m\u1ed7i gi\u1edd v\u00e0o ng\u00e0y 18, \u0111\u00f2i h\u1ecfi l\u01b0u l\u01b0\u1ee3ng th\u00f4ng gi\u00f3 kho\u1ea3ng 296 m\u00b3\/h \u0111\u1ec3 lo\u1ea1i b\u1ecf l\u01b0\u1ee3ng kh\u00ed th\u1ea3i n\u00e0y.<\/p>\n

 <\/p>\n

Nhu c\u1ea7u oxy v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i<\/strong><\/p>\n

 <\/p>\n

Nhu c\u1ea7u oxy c\u1ee7a ph\u00f4i kh\u00e1c nhau t\u00f9y theo gi\u1ed1ng g\u00e0. Ch\u1eb3ng h\u1ea1n, ph\u00f4i g\u00e0 th\u1ecbt nh\u01b0 Ross c\u00f3 nhu c\u1ea7u oxy cao h\u01a1n v\u00e0 ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n so v\u1edbi c\u00e1c gi\u1ed1ng g\u00e0 \u0111\u1ebb ho\u1eb7c gi\u1ed1ng nh\u01b0 Cobb v\u00e0 Hubbard. Khi nhu c\u1ea7u oxy cao h\u01a1n, ph\u00f4i c\u00f3 xu h\u01b0\u1edbng n\u1ee9t v\u1ecf s\u1edbm h\u01a1n. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh th\u00edch h\u1ee3p trong qu\u00e1 tr\u00ecnh th\u00f4ng gi\u00f3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111\u1ee7 oxy v\u00e0 duy tr\u00ec m\u1ee9c CO\u2082 ph\u00f9 h\u1ee3p.<\/p>\n

 <\/p>\n

S\u1ef1 s\u1ea3n sinh nhi\u1ec7t v\u00e0 ph\u00e1t th\u1ea3i CO\u2082 theo ng\u00e0y<\/strong><\/p>\n

 <\/p>\n

Trong qu\u00e1 tr\u00ecnh \u1ea5p, tr\u1ee9ng kh\u00f4ng ch\u1ec9 m\u1ea5t n\u01b0\u1edbc m\u00e0 c\u00f2n s\u1ea3n sinh nhi\u1ec7t v\u00e0 ph\u00e1t th\u1ea3i CO\u2082 theo th\u1eddi gian. Trong nh\u1eefng ng\u00e0y \u0111\u1ea7u ti\u00ean, l\u01b0\u1ee3ng nhi\u1ec7t v\u00e0 CO\u2082 ph\u00e1t th\u1ea3i r\u1ea5t th\u1ea5p. Tuy nhi\u00ean, t\u1eeb ng\u00e0y 10 tr\u1edf \u0111i, qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t c\u1ee7a ph\u00f4i t\u0103ng nhanh, d\u1eabn \u0111\u1ebfn s\u1ef1 gia t\u0103ng \u0111\u00e1ng k\u1ec3 v\u1ec1 nhi\u1ec7t l\u01b0\u1ee3ng v\u00e0 kh\u00ed th\u1ea3i.<\/p>\n

 <\/p>\n

V\u00e0o ng\u00e0y 1-5, l\u01b0\u1ee3ng nhi\u1ec7t sinh ra r\u1ea5t th\u1ea5p (t\u1eeb 0-8 mW\/tr\u1ee9ng) v\u00e0 ph\u00e1t th\u1ea3i CO\u2082 g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3.<\/p>\n

 <\/p>\n

T\u1eeb ng\u00e0y 10, ph\u00f4i b\u1eaft \u0111\u1ea7u sinh nhi\u1ec1u nhi\u1ec7t h\u01a1n (32 mW\/tr\u1ee9ng) v\u00e0 l\u01b0\u1ee3ng CO\u2082 th\u1ea3i ra c\u0169ng t\u0103ng l\u00ean (3.9 mL\/gi\u1edd).<\/p>\n

 <\/p>\n

\u0110\u1ebfn ng\u00e0y 18, m\u1ed7i tr\u1ee9ng c\u00f3 th\u1ec3 s\u1ea3n sinh t\u1edbi 150 mW nhi\u1ec7t v\u00e0 th\u1ea3i ra kho\u1ea3ng 18.5 mL CO\u2082 m\u1ed7i gi\u1edd.<\/p>\n

 <\/p>\n

Nh\u1eefng thay \u0111\u1ed5i n\u00e0y \u0111\u00f2i h\u1ecfi h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh li\u00ean t\u1ee5c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng cao c\u1ee7a ph\u00f4i.<\/p>\n

 <\/p>\n

Y\u00eau c\u1ea7u th\u00f4ng gi\u00f3 theo t\u1eebng giai \u0111o\u1ea1n<\/strong><\/p>\n

 <\/p>\n

H\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 trong qu\u00e1 tr\u00ecnh \u1ea5p \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh d\u1ef1a tr\u00ean nhu c\u1ea7u c\u1ee7a ph\u00f4i theo t\u1eebng giai \u0111o\u1ea1n:<\/p>\n

 <\/p>\n

Giai \u0111o\u1ea1n \u0111\u1ea7u (Ng\u00e0y 1-11):<\/strong>\u00a0Th\u00f4ng gi\u00f3 t\u1eadp trung v\u00e0o vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) \u0111\u1ec3 duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u cho s\u1ef1 ph\u00e1t tri\u1ec3n ban \u0111\u1ea7u c\u1ee7a ph\u00f4i.<\/p>\n

 <\/p>\n

Giai \u0111o\u1ea1n sau (Ng\u00e0y 12-18):<\/strong>\u00a0Khi ph\u00f4i s\u1ea3n sinh nhi\u1ec1u CO\u2082 h\u01a1n, h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 duy tr\u00ec m\u1ee9c CO\u2082 an to\u00e0n, \u0111\u1ed3ng th\u1eddi \u0111\u1ea3m b\u1ea3o cung c\u1ea5p \u0111\u1ee7 oxy \u0111\u1ec3 h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t m\u1ea1nh m\u1ebd c\u1ee7a ph\u00f4i trong nh\u1eefng ng\u00e0y cu\u1ed1i tr\u01b0\u1edbc khi n\u1edf.<\/p>\n

 <\/p>\n

H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng n\u01b0\u1edbc trong m\u00e1y \u1ea5p<\/strong><\/p>\n

 <\/p>\n

Trong qu\u00e1 tr\u00ecnh \u1ea5p tr\u1ee9ng, nhi\u1ec7t \u0111\u1ed9 b\u00ean trong m\u00e1y t\u0103ng cao do ph\u00f4i sinh nhi\u1ec7t li\u00ean t\u1ee5c. M\u1eb7c d\u00f9 h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t m\u1ed9t ph\u1ea7n nhi\u1ec7t \u0111\u1ed9 th\u00f4ng qua \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) v\u00e0 n\u1ed3ng \u0111\u1ed9 CO\u2082, nh\u01b0ng \u0111i\u1ec1u n\u00e0y kh\u00f4ng \u0111\u1ee7 \u0111\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n l\u01b0\u1ee3ng nhi\u1ec7t d\u01b0 th\u1eeba. V\u00ec v\u1eady, c\u00e1c tr\u1ea1i \u1ea5p th\u01b0\u1eddng s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1ed5 sung, ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng n\u01b0\u1edbc.<\/p>\n

 <\/p>\n

Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a h\u1ec7 th\u1ed1ng n\u00e0y d\u1ef1a tr\u00ean vi\u1ec7c n\u01b0\u1edbc l\u1ea1nh ch\u1ea3y qua c\u00e1c \u1ed1ng \u0111\u1ed3ng b\u00ean trong m\u00e1y \u1ea5p, h\u1ea5p th\u1ee5 nhi\u1ec7t do ph\u00f4i v\u00e0 \u0111\u1ed9ng c\u01a1 qu\u1ea1t th\u00f4ng gi\u00f3 t\u1ea1o ra. Khi n\u01b0\u1edbc h\u1ea5p th\u1ee5 nhi\u1ec7t, nhi\u1ec7t \u0111\u1ed9 c\u1ee7a n\u00f3 t\u0103ng l\u00ean tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c d\u1eabn ra ngo\u00e0i. C\u00f4ng su\u1ea5t l\u00e0m m\u00e1t c\u1ee7a h\u1ec7 th\u1ed1ng ph\u1ee5 thu\u1ed9c v\u00e0o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ea3y qua \u1ed1ng \u0111\u1ed3ng v\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra. \u0110\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 l\u00e0m m\u00e1t, c\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t th\u00eam c\u00e1c \u1ed1ng \u0111\u1ed3ng ho\u1eb7c s\u1eed d\u1ee5ng \u1ed1ng c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n \u0111\u1ec3 t\u0103ng l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc m\u1ed7i ph\u00fat.<\/p>\n

 <\/p>\n

L\u01b0u \u00fd khi v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t<\/strong><\/p>\n

 <\/p>\n

M\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 ng\u0103n ng\u1eeba t\u00ecnh tr\u1ea1ng ng\u01b0ng t\u1ee5 n\u01b0\u1edbc tr\u00ean c\u00e1c \u1ed1ng l\u00e0m m\u00e1t. Khi n\u01b0\u1edbc l\u1ea1nh ch\u1ea3y qua h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t, s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa b\u1ec1 m\u1eb7t \u1ed1ng v\u00e0 m\u00f4i tr\u01b0\u1eddng b\u00ean trong m\u00e1y \u1ea5p c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh h\u01a1i n\u01b0\u1edbc, \u0111\u1eb7c bi\u1ec7t trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu m\u00e1y \u1ea5p \u1edf m\u1ee9c 37\u00b0C v\u1edbi RH 55%. N\u1ebfu n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o c\u00f3 nhi\u1ec7t \u0111\u1ed9 qu\u00e1 th\u1ea5p (d\u01b0\u1edbi 27\u00b0C), h\u01a1i n\u01b0\u1edbc c\u00f3 th\u1ec3 nhanh ch\u00f3ng t\u00edch t\u1ee5 tr\u00ean c\u00e1c \u1ed1ng, g\u00e2y ra \u0111\u1ed9 \u1ea9m kh\u00f4ng mong mu\u1ed1n v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u1ea5p n\u1edf, \u0111\u1eb7c bi\u1ec7t trong m\u00e1y n\u1edf.<\/p>\n

 <\/p>\n

\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t l\u00e0m m\u00e1t t\u1ed1i \u01b0u, h\u1ec7 th\u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd. M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn l\u00e0 s\u1eed d\u1ee5ng hai l\u1edbp \u1ed1ng l\u00e0m m\u00e1t, trong \u0111\u00f3 c\u00e1c cu\u1ed9n \u1ed1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t theo ki\u1ec3u song song v\u00e0 n\u01b0\u1edbc ch\u1ea3y theo h\u01b0\u1edbng ng\u01b0\u1ee3c nhau qua t\u1eebng cu\u1ed9n. \u0110i\u1ec1u n\u00e0y gi\u00fap tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng l\u00e0m m\u00e1t kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, khi n\u01b0\u1edbc b\u1ecb n\u00f3ng l\u00ean \u1edf m\u1ed9t ph\u00eda tr\u01b0\u1edbc khi ch\u1ea3y qua to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n

 <\/p>\n

3. T\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed trong m\u00e1y \u1ea5p v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh \u1ea5p<\/strong><\/p>\n

 <\/p>\n

T\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 v\u1ecf tr\u1ee9ng v\u00e0 t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng \u1ea5p \u1ed5n \u0111\u1ecbnh. Trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, khi ph\u00f4i c\u00f2n nh\u1ecf v\u00e0 s\u1ea3n sinh \u00edt nhi\u1ec7t, t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed kh\u00f4ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t. Tuy nhi\u00ean, khi ph\u00f4i ph\u00e1t tri\u1ec3n l\u1edbn h\u01a1n v\u00e0 b\u1eaft \u0111\u1ea7u t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t h\u01a1n, t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 lo\u1ea1i b\u1ecf l\u01b0\u1ee3ng nhi\u1ec7t th\u1eeba, gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 t\u1ed1i \u01b0u b\u00ean trong tr\u1ee9ng.<\/p>\n

 <\/p>\n

C\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed cao c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 gi\u1eefa m\u00e1y \u1ea5p v\u00e0 v\u1ecf tr\u1ee9ng. V\u00ed d\u1ee5, v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed \u0111\u1ea1t 2.0 m\/s, nhi\u1ec7t \u0111\u1ed9 v\u1ecf tr\u1ee9ng \u0111\u01b0\u1ee3c duy tr\u00ec \u1ed5n \u0111\u1ecbnh h\u01a1n so v\u1edbi khi t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed \u1edf m\u1ee9c th\u1ea5p, ch\u1eb3ng h\u1ea1n 0.0 m\/s. N\u1ebfu t\u1ed1c \u0111\u1ed9 kh\u00f4ng kh\u00ed qu\u00e1 th\u1ea5p, c\u1ea7n c\u00f3 s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 l\u1edbn h\u01a1n gi\u1eefa kh\u00f4ng kh\u00ed trong m\u00e1y \u1ea5p v\u00e0 v\u1ecf tr\u1ee9ng \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u qu\u1ea3 l\u00e0m m\u00e1t, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra t\u00ecnh tr\u1ea1ng qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 l\u1ec7 n\u1edf.<\/p>\n

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\u0110i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 qu\u1ea1t trong giai \u0111o\u1ea1n \u0111\u1ea7u<\/strong><\/p>\n

 <\/p>\n

Trong nh\u1eefng ng\u00e0y \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh \u1ea5p, ph\u00f4i ch\u01b0a t\u1ea1o ra nhi\u1ec1u nhi\u1ec7t, v\u00ec v\u1eady c\u00f3 th\u1ec3 gi\u1ea3m t\u1ed1c \u0111\u1ed9 qu\u1ea1t m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng n\u1edf. Vi\u1ec7c \u0111\u1eb7t qu\u1ea1t \u1edf v\u00f2ng tua th\u1ea5p (RPM) gi\u00fap ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng v\u00e0 gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh. \u0110i\u1ec1u ch\u1ec9nh n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho \u0111\u1ebfn kho\u1ea3ng ng\u00e0y th\u1ee9 11, khi ph\u00f4i b\u1eaft \u0111\u1ea7u gia t\u0103ng s\u1ea3n sinh nhi\u1ec7t, l\u00fac n\u00e0y t\u1ed1c \u0111\u1ed9 qu\u1ea1t c\u1ea7n \u0111\u01b0\u1ee3c t\u0103ng l\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o lo\u1ea1i b\u1ecf nhi\u1ec7t th\u1eeba hi\u1ec7u qu\u1ea3.<\/p>\n

 <\/p>\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 cao \u0111\u1ebfn \u1ea5p n\u1edf<\/strong><\/p>\n

 <\/p>\n

M\u00f4i tr\u01b0\u1eddng n\u01a1i tr\u1ee9ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng n\u1edf. Tr\u1ee9ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u1edf v\u00f9ng cao (tr\u00ean 1.500 m\u00e9t so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n) c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u1ea5p n\u1edf \u1edf m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, nh\u01b0ng \u0111i\u1ec1u ng\u01b0\u1ee3c l\u1ea1i th\u00ec kh\u00f3 kh\u0103n h\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0 do tr\u1ee9ng t\u1eeb v\u00f9ng cao th\u01b0\u1eddng c\u00f3 \u00edt l\u1ed7 ch\u00e2n l\u00f4ng h\u01a1n, gi\u00fap h\u1ea1n ch\u1ebf m\u1ea5t n\u01b0\u1edbc trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng kh\u00ed kh\u00f4 v\u00e0 \u00e1p su\u1ea5t oxy th\u1ea5p. Tuy nhi\u00ean, \u1edf v\u00f9ng cao, s\u1ed1 l\u01b0\u1ee3ng ph\u00e2n t\u1eed n\u01b0\u1edbc trong kh\u00f4ng kh\u00ed \u00edt h\u01a1n, l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t, do \u0111\u00f3 nhi\u1ec7t \u0111\u1ed9 v\u1ecf tr\u1ee9ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n \u0111\u1ec3 tr\u00e1nh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i.<\/p>\n

 <\/p>\n

\u0110i\u1ec1u ki\u1ec7n \u1ea5p n\u1edf \u1edf c\u00e1c \u0111\u1ed9 cao kh\u00e1c nhau<\/strong><\/p>\n

 <\/p>\n

Tr\u1ee9ng s\u1ea3n xu\u1ea5t \u1edf v\u00f9ng cao:<\/strong>\u00a0Nh\u1eefng qu\u1ea3 tr\u1ee9ng n\u00e0y c\u00f3 di\u1ec7n t\u00edch l\u1ed7 ch\u00e2n l\u00f4ng nh\u1ecf, gi\u00fap ki\u1ec3m so\u00e1t \u0111\u1ed9 \u1ea9m t\u1ed1t h\u01a1n. Tuy nhi\u00ean, trong qu\u00e1 tr\u00ecnh \u1ea5p, c\u1ea7n gi\u1ea3m \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i (RH) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ee9c m\u1ea5t \u0111\u1ed9 \u1ea9m th\u00edch h\u1ee3p.<\/p>\n

 <\/p>\n

Tr\u1ee9ng s\u1ea3n xu\u1ea5t c\u00f9ng \u0111\u1ed9 cao v\u1edbi m\u00e1y \u1ea5p:<\/strong>\u00a0Nh\u00ecn chung, t\u1ef7 l\u1ec7 n\u1edf c\u1ee7a nh\u1eefng qu\u1ea3 tr\u1ee9ng n\u00e0y t\u1ed1t v\u00ec \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u00e0 ch\u00fang \u0111\u01b0\u1ee3c sinh ra. \u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c duy tr\u00ec \u1edf m\u1ee9c ti\u00eau chu\u1ea9n do s\u1ef1 khu\u1ebfch t\u00e1n h\u01a1i n\u01b0\u1edbc qua v\u1ecf tr\u1ee9ng \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng.<\/p>\n

 <\/p>\n

Tr\u1ee9ng s\u1ea3n xu\u1ea5t \u1edf m\u1ef1c n\u01b0\u1edbc bi\u1ec3n:<\/strong>\u00a0Khi \u1ea5p tr\u1ee9ng t\u1eeb khu v\u1ef1c m\u1ef1c n\u01b0\u1edbc bi\u1ec3n \u1edf \u0111\u1ed9 cao l\u1edbn h\u01a1n, t\u1ef7 l\u1ec7 n\u1edf c\u00f3 th\u1ec3 gi\u1ea3m. Nguy\u00ean nh\u00e2n ch\u00ednh l\u00e0 di\u1ec7n t\u00edch l\u1ed7 ch\u00e2n l\u00f4ng l\u1edbn h\u01a1n, khi\u1ebfn tr\u1ee9ng m\u1ea5t \u0111\u1ed9 \u1ea9m nhi\u1ec1u h\u01a1n trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng kh\u00ed kh\u00f4. \u0110i\u1ec1u n\u00e0y l\u00e0m tr\u1ee9ng d\u1ec5 m\u1ea5t n\u01b0\u1edbc qu\u00e1 nhanh, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ph\u00f4i.<\/p>\n

 <\/p>\n

M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 \u1ea9m v\u00e0 n\u1ed3ng \u0111\u1ed9 oxy \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u1ef7 l\u1ec7 n\u1edf, nh\u01b0ng n\u1ebfu m\u00e1y \u1ea5p \u0111\u1eb7t \u1edf \u0111\u1ed9 cao tr\u00ean 2.000 m\u00e9t so v\u1edbi m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, vi\u1ec7c \u1ea5p tr\u1ee9ng s\u1ebd tr\u1edf n\u00ean r\u1ea5t kh\u00f3 kh\u0103n. Trong \u0111i\u1ec1u ki\u1ec7n n\u00e0y, c\u1ea7n t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 cung c\u1ea5p oxy nh\u00e2n t\u1ea1o \u0111\u1ec3 b\u00f9 \u0111\u1eafp s\u1ef1 thi\u1ebfu h\u1ee5t oxy trong kh\u00f4ng kh\u00ed. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng kh\u1ea3 thi v\u1ec1 m\u1eb7t kinh t\u1ebf, do chi ph\u00ed v\u1eadn h\u00e0nh cao v\u00e0 kh\u00f3 \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 m\u00f4i tr\u01b0\u1eddng.<\/p>\n

 <\/p>\n

VietPoultry<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

1. T\u00e1c \u0111\u1ed9ng c\u1ee7a carbon dioxide (CO\u2082) trong m\u00e1y \u1ea5p k\u00edn   Trong m\u00f4i tr\u01b0\u1eddng m\u00e1y \u1ea5p k\u00edn ho\u00e0n to\u00e0n, n\u1ed3ng \u0111\u1ed9 CO\u2082 c\u00f3 th\u1ec3 t\u0103ng l\u00ean \u0111\u1ebfn 5,000-6,000 ppm ch\u1ec9 sau v\u00e0i ng\u00e0y, do tr\u1ee9ng li\u00ean t\u1ee5c th\u1ea3i kh\u00ed CO\u2082 ra m\u00f4i tr\u01b0\u1eddng xung quanh. S\u1ef1 gia t\u0103ng n\u00e0y kh\u00f4ng ch\u1ec9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn […]\n","protected":false},"author":722,"featured_media":7939,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,89],"tags":[1093,125],"class_list":["post-7938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-industry-news","tag-ap-trung","tag-thuoc-thu-y"],"_links":{"self":[{"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/posts\/7938","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/users\/722"}],"replies":[{"embeddable":true,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/comments?post=7938"}],"version-history":[{"count":1,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/posts\/7938\/revisions"}],"predecessor-version":[{"id":7940,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/posts\/7938\/revisions\/7940"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/media\/7939"}],"wp:attachment":[{"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/media?parent=7938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/categories?post=7938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apanano.vn\/en\/wp-json\/wp\/v2\/tags?post=7938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}