{"id":1111,"date":"2025-03-20T11:53:35","date_gmt":"2025-03-20T04:53:35","guid":{"rendered":"https:\/\/www.nutrispices.com\/sulfur-an-invisible-threat\/"},"modified":"2025-12-09T18:01:55","modified_gmt":"2025-12-09T11:01:55","slug":"sulfur-moi-de-doa-vo-hinh","status":"publish","type":"post","link":"https:\/\/www.nutrispices.com\/vi\/uncategorized-vi\/sulfur-moi-de-doa-vo-hinh\/","title":{"rendered":"Sulfur, m\u1ed1i \u0111e d\u1ecda v\u00f4 h\u00ecnh"},"content":{"rendered":"\n
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Sulfur l\u00e0 m\u1ed9t nguy\u00ean t\u1ed1 thi\u1ebft y\u1ebfu trong dinh d\u01b0\u1ee1ng v\u1eadt nu\u00f4i, c\u00f3 trong nhi\u1ec1u nguy\u00ean li\u1ec7u th\u1ee9c \u0103n v\u00e0 ph\u1ee5 gia th\u1ee9c \u0103n ch\u0103n nu\u00f4i. \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a c\u00e1c axit amin nh\u01b0 methionine v\u00e0 cysteine \u200b\u200bv\u00e0 c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p protein v\u00e0 ch\u1ee9c n\u0103ng trao \u0111\u1ed5i ch\u1ea5t. Tuy nhi\u00ean, l\u01b0\u1ee3ng sulfur h\u1ea5p th\u1ee5 qu\u00e1 nhi\u1ec1u, d\u00f9 t\u1eeb ngu\u1ed3n h\u1eefu c\u01a1 hay v\u00f4 c\u01a1, \u0111\u1ec1u c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 ng\u1ed9 \u0111\u1ed9c \u0111\u00e1ng k\u1ec3 \u1edf c\u1ea3 heo v\u00e0 gia c\u1ea7m.<\/strong><\/p>\n<\/div><\/div>\n\n\n

Trong ph\u01b0\u01a1ng th\u1ee9c cho \u0103n, m\u1ed9t s\u1ed1 t\u00e1c nh\u00e2n ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0\u1ee3ng sulfur h\u1ea5p th\u1ee5 lu\u00f4n \u0111\u01b0\u1ee3c ch\u00fa \u00fd: DDGS, lysine sulfate, \u0111\u1ed3ng sulfate v\u00e0 c\u00e1c lo\u1ea1i nguy\u00ean li\u1ec7u b\u00e3 cung c\u1ea5p protein c\u00f3 h\u00e0m l\u01b0\u1ee3ng sulfur cao nh\u01b0 b\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u (canola meal) v\u00e0 b\u00e3 \u0111\u1eadu n\u00e0nh c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5ng l\u01b0\u1ee3ng sulfur.<\/p>\n

B\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u, b\u00e3 \u0111\u1eadu n\u00e0nh v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 gi\u00e0u protein kh\u00e1c ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn sulfur h\u1eefu c\u01a1, ch\u1ee7 y\u1ebfu \u1edf d\u1ea1ng c\u00e1c axit amin ch\u1ee9a sulfur nh\u01b0 methionine v\u00e0 cysteine. V\u00ed d\u1ee5, b\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u ch\u1ee9a kho\u1ea3ng 0,6-0,8% t\u1ed5ng sulfur. M\u1eb7c d\u00f9 sulfur n\u00e0y l\u00e0 sulfur h\u1eefu c\u01a1 ch\u1ee9 kh\u00f4ng ph\u1ea3i sunfat v\u00f4 c\u01a1, nh\u01b0ng vi\u1ec7c b\u1ed5 sung qu\u00e1 nhi\u1ec1u c\u00e1c lo\u1ea1i b\u00e3 n\u00e0y v\u1eabn c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5ng l\u01b0\u1ee3ng sulfur trong kh\u1ea9u ph\u1ea7n .<\/p>\n

DDGS (b\u00e3 r\u01b0\u1ee3u kh\u00f4), m\u1ed9t s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ethanol, ch\u1ee9a kho\u1ea3ng 0,5-1% t\u1ed5ng sulfur, bao g\u1ed3m c\u1ea3 sulfur h\u1eefu c\u01a1 t\u1eeb h\u00e0m l\u01b0\u1ee3ng protein v\u00e0 sunfat v\u00f4 c\u01a1. H\u00e0m l\u01b0\u1ee3ng sulfur trong DDGS ch\u1ee7 y\u1ebfu b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng acid sulfuric trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ethanol \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 pH v\u00e0 l\u00e0m s\u1ea1ch thi\u1ebft b\u1ecb. Do h\u00e0m l\u01b0\u1ee3ng protein v\u00e0 n\u0103ng l\u01b0\u1ee3ng cao, DDGS th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o kh\u1ea9u ph\u1ea7n c\u1ee7a \u0111\u1ed9ng v\u1eadt v\u1edbi t\u1ef7 l\u1ec7 5-10%, \u0111\u00f3ng g\u00f3p kho\u1ea3ng 50 \u0111\u1ebfn 100 gam sulfur tr\u00ean m\u1ed9t t\u1ea5n th\u1ee9c \u0103n.<\/p>\n

Lysine Sunfate<\/strong><\/p>\n

Lysine sulfate, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ngu\u1ed3n lysine ti\u1ebft ki\u1ec7m chi ph\u00ed, ch\u1ee9a 20-25% sulfate. Trong kh\u1ea9u ph\u1ea7n \u0111i\u1ec3n h\u00ecnh, lysine sulfate \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o \u1edf m\u1ee9c 0,5-1%. V\u00ec b\u1ea3n th\u00e2n sulfate ch\u1ee9a kho\u1ea3ng 33% sulfur, \u01b0\u1edbc t\u00ednh s\u1ebd c\u00f3 kho\u1ea3ng 330-825 gam sulfur tr\u00ean m\u1ed9t t\u1ea5n th\u1ee9c \u0103n, khi\u1ebfn lysine sulfate tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng ngu\u1ed3n sulfur ch\u00ednh, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong kh\u1ea9u ph\u1ea7n \u0103n c\u1ee7a heo v\u00e0 gia c\u1ea7m.<\/p>\n

\u0110\u1ed3ng sulfate<\/strong><\/p>\n

\u0110\u1ed3ng sulfate (CuSO\u2084\u00b75H\u2082O) ch\u1ee9a kho\u1ea3ng 40% sunfat. Khi \u0111\u1ed3ng sunfate \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t th\u00fac \u0111\u1ea9y t\u0103ng tr\u01b0\u1edfng \u1edf heo v\u00e0 gia c\u1ea7m v\u1edbi t\u1ef7 l\u1ec7 b\u1ed5 sung l\u00e0 1 kg tr\u00ean m\u1ed9t t\u1ea5n (1.000 ppm), n\u00f3 \u0111\u00f3ng g\u00f3p kho\u1ea3ng 132 gam sulfur tr\u00ean m\u1ed9t t\u1ea5n th\u1ee9c \u0103n, t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn t\u1ed5ng l\u01b0\u1ee3ng sulfur khi s\u1eed d\u1ee5ng \u1edf li\u1ec1u cao.<\/p>\n

Nghi\u00ean c\u1ee9u cho th\u1ea5y r\u1eb1ng n\u1ed3ng \u0111\u1ed9 sulfur qu\u00e1 m\u1ee9c s\u1ebd \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u1ea3 l\u1ee3n v\u00e0 gia c\u1ea7m. N\u0103m 2003, trong m\u1ed9t nghi\u00ean c\u1ee9u Spears v\u00e0 c\u1ed9ng s\u1ef1 \u0111\u00e3 ch\u1ee9ng minh r\u1eb1ng t\u1ed5ng n\u1ed3ng \u0111\u1ed9 sulfur v\u01b0\u1ee3t qu\u00e1 4 g\/kg (4.000 mg\/kg) v\u1eadt ch\u1ea5t kh\u00f4 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng th\u1ee9c \u0103n ti\u00eau th\u1ee5 v\u00e0 g\u00e2y ti\u00eau ch\u1ea3y \u1edf heo. Tr\u00ean gia c\u1ea7m, th\u00ec c\u00f3 th\u1ec3 th\u1ea5y gi\u1ea3m t\u0103ng tr\u1ecdng h\u1eb1ng ng\u00e0y t\u1eeb 500 ppm sulfur. NRC (H\u1ed9i \u0111\u1ed3ng Nghi\u00ean c\u1ee9u Qu\u1ed1c gia, Hoa K\u1ef3) \u0111\u1ec1 xu\u1ea5t m\u1ee9c dung n\u1ea1p t\u1ed1i \u0111a l\u00e0 4.000 ppm trong khi d\u1eef li\u1ec7u c\u1ee7a \u0110\u1ea1i h\u1ecdc Guelph khuy\u1ebfn ngh\u1ecb \u0111\u1eb7t gi\u1edbi h\u1ea1n \u1edf m\u1ee9c 3.000 ppm. N\u1ebfu v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng b\u1ea5t \u1ed5n \u0111\u01b0\u1eddng ru\u1ed9t, t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng gi\u1ea3m v\u00e0 m\u1ea5t c\u00e2n b\u1eb1ng kho\u00e1ng ch\u1ea5t.
C\u01a1 ch\u1ebf g\u00e2y \u0111\u1ed9c ch\u00ednh c\u1ee7a sulfur trong dinh d\u01b0\u1ee1ng v\u1eadt nu\u00f4i d\u1ef1a tr\u00ean qu\u00e1 tr\u00ecnh chuy\u1ec3n h\u00f3a sulfur th\u00e0nh hydro sunfur (H\u2082S) b\u1edfi vi khu\u1ea9n kh\u1eed sulfur (SRB) trong \u0111\u01b0\u1eddng ru\u1ed9t. Khi sulfur \u0111\u1ebfn ru\u1ed9t gi\u00e0 ho\u1eb7c manh tr\u00e0ng, vi khu\u1ea9n k\u1ef5 kh\u00ed nh\u01b0 Desulfovibrio chuy\u1ec3n \u0111\u1ed5i sulfur th\u00e0nh H\u2082S, m\u1ed9t lo\u1ea1i kh\u00ed \u0111\u1ed9c c\u00f3 th\u1ec3 l\u00e0m h\u1ea1i qu\u00e1 tr\u00ecnh h\u00f4 h\u1ea5p t\u1ebf b\u00e0o v\u00e0 ni\u00eam m\u1ea1c ru\u1ed9t.<\/p>\n

Hydro sunfur kh\u00f4ng ch\u1ec9 \u0111\u1ed9c h\u1ea1i v\u1edbi bi\u1ec3u m\u00f4 ru\u1ed9t m\u00e0 c\u00f2n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ea5p th\u1ee5 v\u00e0o m\u00e1u, n\u01a1i n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ed9c h\u00f4 h\u1ea5p m\u1ea1nh, \u1ee9c ch\u1ebf cytochrome oxidase v\u00e0 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng thi\u1ebfu oxy t\u1ebf b\u00e0o. Ngo\u00e0i ra, n\u1ed3ng \u0111\u1ed9 sulfur cao l\u00e0m t\u0103ng \u00e1p su\u1ea5t th\u1ea9m th\u1ea5u trong ru\u1ed9t, k\u00e9o n\u01b0\u1edbc v\u00e0o l\u00f2ng ru\u1ed9t v\u00e0 g\u00e2y ti\u00eau ch\u1ea3y th\u1ea9m th\u1ea5u. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t n\u01b0\u1edbc nghi\u00eam tr\u1ecdng v\u00e0 th\u1ea5t tho\u00e1t d\u01b0\u1ee1ng ch\u1ea5t, cu\u1ed1i c\u00f9ng l\u00e0m gi\u1ea3m s\u1ef1 t\u0103ng tr\u01b0\u1edfng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a v\u1eadt nu\u00f4i.<\/p>\n

M\u1ed9t bi\u1ec3u hi\u1ec7n quan tr\u1ecdng kh\u00e1c c\u1ee7a ng\u1ed9 \u0111\u1ed9c sulfur l\u00e0 s\u1ef1 gi\u00e1n \u0111o\u1ea1n h\u1ea5p th\u1ee5 kho\u00e1ng ch\u1ea5t. N\u1ed3ng \u0111\u1ed9 sulfur cao c\u1ea3n tr\u1edf s\u1ef1 h\u1ea5p th\u1ee5 calcium v\u00e0 magnesium, l\u00e0m t\u0103ng nguy c\u01a1 thi\u1ebfu h\u1ee5t kho\u00e1ng ch\u1ea5t v\u00e0 r\u1ed1i lo\u1ea1n qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh x\u01b0\u01a1ng. \u0110\u00e2y s\u1ebd l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 l\u1edbn \u0111\u1ed1i v\u1edbi \u0111\u1ed9ng v\u1eadt l\u1edbn nhanh m\u00e0 \u0111\u1ed1i v\u1edbi ch\u00fang s\u1ef1 c\u00e2n b\u1eb1ng calcium v\u00e0 phosphorus l\u00e0 r\u1ea5t quan tr\u1ecdng<\/p>\n

T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn h\u1ec7 vi sinh v\u1eadt<\/strong><\/p>\n

N\u1ed3ng \u0111\u1ed9 sulfur cao trong ch\u1ebf \u0111\u1ed9 \u0103n c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i h\u1ec7 vi sinh v\u1eadt \u0111\u01b0\u1eddng ru\u1ed9t b\u1eb1ng c\u00e1ch th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi khu\u1ea9n kh\u1eed sulfate (SRB) h\u01a1n l\u00e0 gi\u1ea3m l\u1ee3i khu\u1ea9n. S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng vi sinh n\u00e0y c\u00f3 th\u1ec3 l\u00e0m suy y\u1ebfu qu\u00e1 tr\u00ecnh ti\u00eau h\u00f3a v\u00e0 h\u1ea5p th\u1ee5 ch\u1ea5t dinh d\u01b0\u1ee1ng, l\u00e0m gi\u1ea3m s\u1ee9c kh\u1ecfe \u0111\u01b0\u1eddng ru\u1ed9t v\u00e0 l\u00e0m t\u0103ng nguy c\u01a1 r\u1ed1i lo\u1ea1n ti\u00eau h\u00f3a. H\u01a1n n\u1eefa, vi\u1ec7c s\u1ea3n xu\u1ea5t H\u2082S b\u1edfi SRB c\u00f3 th\u1ec3 \u1ee9c ch\u1ebf c\u00e1c vi khu\u1ea9n c\u00f3 l\u1ee3i, l\u00e0m gi\u00e1n \u0111o\u1ea1n th\u00eam h\u1ec7 sinh th\u00e1i vi sinh.<\/p>\n

G\u00e2y \u0111\u1ed9c \u0111\u01b0\u1eddng h\u00f4 h\u1ea5p<\/strong><\/p>\n

B\u00ean c\u1ea1nh t\u1ed5n th\u01b0\u01a1ng \u0111\u01b0\u1eddng ru\u1ed9t, kh\u00ed H\u2082S tho\u00e1t ra t\u1eeb ph\u00e2n v\u00e0 ch\u1ea5t th\u1ea3i chu\u1ed3ng tr\u1ea1i c\u00f3 th\u1ec3 t\u00edch t\u1ee5 trong chu\u1ed3ng nu\u00f4i nh\u1ed1t. \u1ede n\u1ed3ng \u0111\u1ed9 cao, n\u00f3 g\u00e2y ra m\u1ed1i nguy hi\u1ec3m \u0111\u00e1ng k\u1ec3 v\u1ec1 h\u00f4 h\u1ea5p cho c\u1ea3 \u0111\u1ed9ng v\u1eadt v\u00e0 c\u00f4ng nh\u00e2n trang tr\u1ea1i. Ti\u1ebfp x\u00fac l\u00e2u d\u00e0i c\u00f3 th\u1ec3 g\u00e2y ra suy h\u00f4 h\u1ea5p, ho, k\u00edch \u1ee9ng m\u1eaft v\u00e0 trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, th\u1eadm ch\u00ed t\u1eed vong \u1edf \u0111\u1ed9ng v\u1eadt. Th\u00f4ng gi\u00f3 v\u00e0 qu\u1ea3n l\u00fd ph\u00e2n th\u00edch h\u1ee3p l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u ph\u00e1t th\u1ea3i H\u2082S v\u00e0 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe h\u00f4 h\u1ea5p.<\/p>\n

Heo v\u00e0 gia c\u1ea7m c\u00f3 m\u1ee9c \u0111\u1ed9 nh\u1ea1y c\u1ea3m kh\u00e1c nhau v\u1edbi \u0111\u1ed9c t\u00ednh sulfur. Nh\u00ecn chung, heo d\u1ec5 b\u1ecb nhi\u1ec5m h\u01a1n gia c\u1ea7m do ti\u00eau th\u1ee5 nhi\u1ec1u n\u01b0\u1edbc h\u01a1n v\u00e0 qu\u00e1 tr\u00ecnh l\u00ean men \u0111\u01b0\u1eddng ti\u00eau h\u00f3a nhanh h\u01a1n. \u0110\u1ed1i v\u1edbi heo, th\u00ec heo con d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng h\u01a1n heo tr\u01b0\u1edfng th\u00e0nh v\u00ec h\u1ec7 vi sinh \u0111\u01b0\u1eddng ru\u1ed9t v\u00e0 h\u1ec7 ti\u00eau h\u00f3a c\u1ee7a ch\u00fang ch\u01b0a ph\u00e1t tri\u1ec3n \u0111\u1ea7y \u0111\u1ee7, khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb ti\u00eau ch\u1ea3y v\u00e0 th\u1ea5t tho\u00e1t dinh d\u01b0\u1ee1ng h\u01a1n. \u1ede gia c\u1ea7m, gia c\u1ea7m non c\u0169ng nh\u1ea1y c\u1ea3m h\u01a1n gia c\u1ea7m tr\u01b0\u1edfng th\u00e0nh v\u00ec t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng nhanh l\u00e0m t\u0103ng nhu c\u1ea7u dinh d\u01b0\u1ee1ng v\u00e0 d\u1ec5 b\u1ecb r\u1ed1i lo\u1ea1n ti\u00eau h\u00f3a.<\/p>\n

Nh\u1eefng \u0111i\u1ec1u c\u1ea7n c\u00e2n nh\u1eafc khi l\u1eadp c\u00f4ng th\u1ee9c \u0111\u1ec3 gi\u00fap b\u1ea1n ng\u0103n ng\u1eeba vi\u1ec7c v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng ng\u1ed9 \u0111\u1ed9c sulfur.<\/p>\n

    \n
  1. Theo d\u00f5i th\u00e0nh ph\u1ea7n nguy\u00ean li\u1ec7u:<\/strong> \u0110\u00e1nh gi\u00e1 th\u01b0\u1eddng xuy\u00ean h\u00e0m l\u01b0\u1ee3ng sulfur trong nguy\u00ean li\u1ec7u th\u00f4, \u0111\u1eb7c bi\u1ec7t l\u00e0 DDGS, b\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u v\u00e0 h\u00e0m l\u01b0\u1ee3ng sulfat trong premix<\/li>\n
  2. S\u1eed d\u1ee5ng Lysine Hydrochloride:<\/strong> \u01afu ti\u00ean lysine hydrochloride h\u01a1n lysine sulfate \u0111\u1ec3 gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng sulfur h\u1ea5p th\u1ee5.<\/li>\n
  3. S\u1eed d\u1ee5ng c\u1ea9n th\u1eadn c\u00e1c ch\u1ea5t k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng:<\/strong> khi s\u1eed d\u1ee5ng \u0111\u1ed3ng l\u00e0m ch\u1ea5t k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng trong ch\u1ebf \u0111\u1ed9 \u0103n c\u1ee7a l\u1ee3n th\u1ecbt v\u00e0 g\u00e0 con, h\u00e3y thay th\u1ebf \u0111\u1ed3ng sunfat b\u1eb1ng oxit \u0111\u1ed3ng \u0111\u1ec3 h\u1ea1n ch\u1ebf \u00f4 nhi\u1ec5m sulfur trong khi v\u1eabn duy tr\u00ec hi\u1ec7u qu\u1ea3 th\u00fac \u0111\u1ea9y t\u0103ng tr\u01b0\u1edfng v\u01b0\u1ee3t tr\u1ed9i<\/li>\n
  4. C\u00f4ng th\u1ee9c th\u1ee9c \u0103n c\u00e2n b\u1eb1ng:<\/strong> Tu\u00e2n th\u1ee7 m\u1ee9c sulfur trong matrix c\u00f4ng th\u1ee9c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ed5ng l\u01b0\u1ee3ng sulfur trong ch\u1ebf \u0111\u1ed9 \u0103n kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n khuy\u1ebfn ngh\u1ecb.<\/li>\n<\/ol>\n

    \u0110\u1ed9c t\u00ednh c\u1ee7a sulfur trong dinh d\u01b0\u1ee1ng heo v\u00e0 gia c\u1ea7m l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 \u0111a di\u1ec7n \u0111\u00f2i h\u1ecfi ph\u1ea3i gi\u00e1m s\u00e1t th\u1eadn tr\u1ecdng. B\u1eb1ng c\u00e1ch hi\u1ec3u c\u00e1c ngu\u1ed3n sulfur ch\u00ednh v\u00e0 c\u01a1 ch\u1ebf g\u00e2y \u0111\u1ed9c c\u1ee7a ch\u00fang, c\u00e1c chuy\u00ean gia dinh d\u01b0\u1ee1ng c\u00f3 th\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh c\u00f3 c\u0103n c\u1ee9 r\u00f5 r\u00e0ng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro cho v\u1eadt nu\u00f4i. Vi\u1ec7c theo d\u00f5i th\u01b0\u1eddng xuy\u00ean, c\u00f4ng th\u1ee9c c\u00e2n b\u1eb1ng v\u00e0 s\u1eed d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c c\u00e1c ch\u1ea5t ph\u1ee5 gia thay th\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec n\u0103ng su\u1ea5t v\u00e0 s\u1ee9c kh\u1ecfe t\u1ed1i \u01b0u c\u1ee7a v\u1eadt nu\u00f4i.<\/p>\n

    David Serene<\/strong><\/p>\n

    Gi\u00e1m \u0111\u1ed1c Nutrispices<\/p>","protected":false},"excerpt":{"rendered":"

    Sulfur l\u00e0 m\u1ed9t nguy\u00ean t\u1ed1 thi\u1ebft y\u1ebfu trong dinh d\u01b0\u1ee1ng v\u1eadt nu\u00f4i, c\u00f3 trong nhi\u1ec1u nguy\u00ean li\u1ec7u th\u1ee9c \u0103n v\u00e0 ph\u1ee5 gia th\u1ee9c \u0103n ch\u0103n nu\u00f4i. \u0110\u00e2y l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a c\u00e1c axit amin nh\u01b0 methionine v\u00e0 cysteine \u200b\u200bv\u00e0 c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh t\u1ed5ng h\u1ee3p protein v\u00e0 ch\u1ee9c n\u0103ng trao \u0111\u1ed5i ch\u1ea5t. Tuy nhi\u00ean, l\u01b0\u1ee3ng sulfur h\u1ea5p th\u1ee5 qu\u00e1 nhi\u1ec1u, d\u00f9 t\u1eeb ngu\u1ed3n h\u1eefu c\u01a1 hay v\u00f4 c\u01a1, \u0111\u1ec1u c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 ng\u1ed9 \u0111\u1ed9c \u0111\u00e1ng k\u1ec3 \u1edf c\u1ea3 heo v\u00e0 gia c\u1ea7m. Trong ph\u01b0\u01a1ng th\u1ee9c cho \u0103n, m\u1ed9t s\u1ed1 t\u00e1c nh\u00e2n ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0\u1ee3ng sulfur h\u1ea5p th\u1ee5 lu\u00f4n \u0111\u01b0\u1ee3c ch\u00fa \u00fd: DDGS, lysine sulfate, \u0111\u1ed3ng sulfate v\u00e0 c\u00e1c lo\u1ea1i nguy\u00ean li\u1ec7u b\u00e3 cung c\u1ea5p protein c\u00f3 h\u00e0m l\u01b0\u1ee3ng sulfur cao nh\u01b0 b\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u (canola meal) v\u00e0 b\u00e3 \u0111\u1eadu n\u00e0nh c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5ng l\u01b0\u1ee3ng sulfur. B\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u, b\u00e3 \u0111\u1eadu n\u00e0nh v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m ph\u1ee5 gi\u00e0u protein kh\u00e1c ch\u1ee9a m\u1ed9t l\u01b0\u1ee3ng l\u1edbn sulfur h\u1eefu c\u01a1, ch\u1ee7 y\u1ebfu \u1edf d\u1ea1ng c\u00e1c axit amin ch\u1ee9a sulfur nh\u01b0 methionine v\u00e0 cysteine. V\u00ed d\u1ee5, b\u00e3 h\u1ea1t c\u1ea3i d\u1ea7u ch\u1ee9a kho\u1ea3ng 0,6-0,8% t\u1ed5ng sulfur. M\u1eb7c d\u00f9 sulfur n\u00e0y l\u00e0 sulfur h\u1eefu c\u01a1 ch\u1ee9 kh\u00f4ng ph\u1ea3i sunfat v\u00f4 c\u01a1, nh\u01b0ng vi\u1ec7c b\u1ed5 sung qu\u00e1 nhi\u1ec1u c\u00e1c lo\u1ea1i b\u00e3 n\u00e0y v\u1eabn c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5ng l\u01b0\u1ee3ng sulfur trong kh\u1ea9u ph\u1ea7n . DDGS (b\u00e3 r\u01b0\u1ee3u kh\u00f4), m\u1ed9t s\u1ea3n ph\u1ea9m ph\u1ee5 c\u1ee7a qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ethanol, ch\u1ee9a kho\u1ea3ng 0,5-1% t\u1ed5ng sulfur, bao g\u1ed3m c\u1ea3 sulfur h\u1eefu c\u01a1 t\u1eeb h\u00e0m l\u01b0\u1ee3ng protein v\u00e0 sunfat v\u00f4 c\u01a1. H\u00e0m l\u01b0\u1ee3ng sulfur trong DDGS ch\u1ee7 y\u1ebfu b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng acid sulfuric trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ethanol \u0111\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 pH v\u00e0 l\u00e0m s\u1ea1ch thi\u1ebft b\u1ecb. Do h\u00e0m l\u01b0\u1ee3ng protein v\u00e0 n\u0103ng l\u01b0\u1ee3ng cao,<\/p>\n","protected":false},"author":1,"featured_media":889,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36],"tags":[136,137,79,74,69],"class_list":["post-1111","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutricles-vi","tag-david-serene-vi","tag-nutricle-vi","tag-sulfur","tag-nutricle","tag-david-serene"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/posts\/1111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/comments?post=1111"}],"version-history":[{"count":6,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/posts\/1111\/revisions"}],"predecessor-version":[{"id":2231,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/posts\/1111\/revisions\/2231"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/media\/889"}],"wp:attachment":[{"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/media?parent=1111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/categories?post=1111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nutrispices.com\/vi\/wp-json\/wp\/v2\/tags?post=1111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}