{"id":2132,"date":"2025-07-30T16:11:00","date_gmt":"2025-07-30T09:11:00","guid":{"rendered":"https:\/\/www.nutrispices.com\/?p=2132"},"modified":"2025-12-09T17:51:54","modified_gmt":"2025-12-09T10:51:54","slug":"su-oxi-hoa-khu-co-gay-ra-van-de-cho-vat-nuoi-khong","status":"publish","type":"post","link":"https:\/\/www.nutrispices.com\/vi\/nutrinews\/nutricles\/su-oxi-hoa-khu-co-gay-ra-van-de-cho-vat-nuoi-khong\/","title":{"rendered":"S\u1ef1 oxi-h\u00f3a kh\u1eed c\u00f3 g\u00e2y ra v\u1ea5n \u0111\u1ec1 cho v\u1eadt nu\u00f4i kh\u00f4ng?"},"content":{"rendered":"\n
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Trong dinh d\u01b0\u1ee1ng \u0111\u1ed9ng v\u1eadt, kh\u00f4ng c\u00f3 \u0111i\u1ec1u g\u00ec l\u00e0 ng\u1eabu nhi\u00ean, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c vi kho\u00e1ng. Ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed3ng (Cu), so v\u1edbi nh\u1eefng d\u01b0\u1ee1ng ch\u1ea5t thi\u1ebft y\u1ebfu kh\u00e1c, ch\u1ec9 c\u1ea7n m\u1ed9t li\u1ec1u l\u01b0\u1ee3ng nh\u1ecf t\u1eeb 10 ppm \u0111\u1ebfn 20 ppm l\u00e0 \u0111\u1ee7 trong kh\u1ea9u ph\u1ea7n c\u1ee7a heo v\u00e0 gia c\u1ea7m. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t ra m\u1ed9t nghi v\u1ea5n quan tr\u1ecdng: n\u1ebfu nhu c\u1ea7u t\u1ef1 nhi\u00ean c\u1ee7a \u0111\u1ed3ng \u1edf m\u1ee9c th\u1ea5p nh\u01b0 v\u1eady, li\u1ec7u c\u00f3 l\u00fd do s\u00e2u xa n\u00e0o kh\u00f4ng? V\u00e0 \u0111i\u1ec1u g\u00ec s\u1ebd x\u1ea3y ra n\u1ebfu ch\u00fang ta t\u0103ng li\u1ec1u l\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u00e2n nh\u1eafc h\u1eadu qu\u1ea3?<\/strong><\/p>\n<\/div><\/div>\n\n\n\n

Trong v\u00e0i th\u1eadp ni\u00ean qua, c\u00e1c chuy\u00ean gia dinh d\u01b0\u1ee1ng \u0111\u00e3 ch\u1ee9ng minh vi\u1ec7c t\u0103ng li\u1ec1u d\u01b0\u1ee3c l\u00fd c\u1ee7a \u0111\u1ed3ng l\u00ean (150\u2013250 ppm), \u0111\u1eb7c bi\u1ec7t \u1edf heo cai s\u1eefa ho\u1eb7c g\u00e0 th\u1ecbt gi\u00fap c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t r\u00f5 r\u1ec7t. S\u1eed d\u1ee5ng trong th\u1eddi gian ng\u1eafn gi\u00fap c\u1ea3i thi\u1ec7n t\u0103ng tr\u1ecdng trung b\u00ecnh h\u1eb1ng ng\u00e0y (ADG), h\u1ec7 s\u1ed1 chuy\u1ec3n h\u00f3a th\u1ee9c \u0103n (FCR) v\u00e0 s\u1ee9c kh\u1ecfe \u0111\u01b0\u1eddng ru\u1ed9t. Tuy nhi\u00ean, n\u1ebfu s\u1eed d\u1ee5ng li\u00ean t\u1ee5c \u1edf giai \u0111o\u1ea1n sau cai ho\u1eb7c v\u1ed7 b\u00e9o th\u00ec c\u00f3 th\u1ec3 g\u00e2y ph\u1ea3n t\u00e1c d\u1ee5ng. N\u0103ng su\u1ea5t c\u00f3 th\u1ec3 gi\u1ea3m ho\u1eb7c kh\u00f4ng c\u1ea3i thi\u1ec7n, nguy c\u01a1 ng\u1ed9 \u0111\u1ed9c t\u0103ng l\u00ean, c\u00f3 c\u00e1c d\u1ea5u hi\u1ec7u t\u00edch t\u1ee5 \u1edf gan v\u00e0 t\u1ed5n th\u01b0\u01a1ng t\u1ebf b\u00e0o.<\/p>\n\n\n

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Ngh\u1ecbch l\u00fd n\u00e0y \u0111\u1eb7t ra m\u1ed9t c\u00e2u h\u1ecfi r\u1ed9ng h\u01a1n: Li\u1ec7u kh\u1ea3 n\u0103ng g\u00e2y \u0111\u1ed9c c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t r\u1ee7i ro c\u1ee7a ch\u00ednh th\u1ebf oxi h\u00f3a-kh\u1eed c\u1ee7a kho\u00e1ng vi l\u01b0\u1ee3ng kh\u00f4ng?<\/p>\n\n\n\n

V\u1eady oxi h\u00f3a-kh\u1eed l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

Tr\u1ea1ng th\u00e1i oxi h\u00f3a-kh\u1eed (hay c\u00f2n g\u1ecdi l\u00e0 th\u1ebf oxy h\u00f3a-kh\u1eed) l\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a m\u1ed9t ch\u1ea5t nh\u1eadn ho\u1eb7c cho electron trong m\u1ed9t ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc. N\u00f3 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng \u0111\u01a1n v\u1ecb volt (V) v\u00e0 ph\u1ea3n \u00e1nh m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng truy\u1ec1n electron c\u1ee7a nguy\u00ean t\u1ed1 \u0111\u00f3. Trong c\u01a1 th\u1ec3 sinh h\u1ecdc, \u0111\u1eb7c t\u00ednh n\u00e0y r\u1ea5t quan tr\u1ecdng, nhi\u1ec1u enzyme ph\u1ee5 thu\u1ed9c v\u00e0o kho\u00e1ng vi l\u01b0\u1ee3ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ph\u1ea3n \u1ee9ng trao \u0111\u1ed5i \u0111i\u1ec7n t\u1eed trong chuy\u1ec3n h\u00f3a v\u00e0 gi\u1ea3i \u0111\u1ed9c.<\/p>\n\n\n\n

M\u1ed7i kho\u00e1ng ch\u1ea5t c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m th\u1ebf oxi h\u00f3a-kh\u1eed ri\u00eang, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng kho\u00e1ng c\u00f3 kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c tr\u1ea1ng th\u00e1i ion. Nh\u1eefng kho\u00e1ng c\u00f3 th\u1ebf oxi h\u00f3a-kh\u1eed cao s\u1ebd d\u1ec5 nh\u1eadn electron, do \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng m\u1ea1nh h\u01a1n. N\u1ebfu t\u1ed3n t\u1ea1i t\u1ef1 do trong t\u1ebf b\u00e0o, c\u00e1c kho\u00e1ng ch\u1ea5t n\u00e0y c\u00f3 th\u1ec3 ph\u1ea3n \u1ee9ng tr\u1ef1c ti\u1ebfp v\u1edbi DNA, protein, lipid v\u00e0 m\u00e0ng t\u1ebf b\u00e0o, c\u01b0\u1edbp electron v\u00e0 l\u00e0m thay \u0111\u1ed5i c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n n\u1ed9i b\u00e0o n\u00e0y. Qu\u00e1 tr\u00ecnh oxy h\u00f3a th\u1ea7m l\u1eb7ng n\u00e0y l\u00e0m y\u1ebfu \u0111i t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u1ebf b\u00e0o c\u01a1, l\u00e0m bi\u1ebfn t\u00ednh protein v\u00e0 b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh peroxy h\u00f3a lipid.<\/p>\n\n\n\n

H\u1eadu qu\u1ea3 tuy kh\u00f4ng th\u1ec3 hi\u1ec7n trong qu\u00e1 tr\u00ecnh nu\u00f4i, nh\u01b0ng l\u1ea1i r\u00f5 r\u00e0ng sau khi gi\u1ebft m\u1ed5: th\u1ecbt c\u00f3 th\u1ec3 m\u1ea5t n\u01b0\u1edbc, kh\u00f4 h\u01a1n v\u00e0 r\u1ec9 n\u01b0\u1edbc nhi\u1ec1u h\u01a1n; ch\u1ea5t b\u00e9o b\u1ecb oxy h\u00f3a g\u00e2y m\u00f9i l\u1ea1, v\u1ecb kh\u00e9t v\u00e0 s\u1eafc t\u1ed1 b\u1ecb ph\u00e1 h\u1ee7y l\u00e0m th\u1ecbt c\u00f3 m\u00e0u x\u00e1m n\u00e2u thay v\u00ec \u0111\u1ecf t\u01b0\u01a1i nh\u01b0 mong \u0111\u1ee3i. Trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng, \u0111i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m \u0111\u1ed9 m\u1ec1m, \u0111\u1ed9 m\u1ecdng v\u00e0 th\u1eddi gian s\u1eed d\u1ee5ng c\u1ee7a th\u1ecbt, nh\u1eefng t\u1ed5n th\u1ea5t ch\u1ea5t l\u01b0\u1ee3ng \u00e2m th\u1ea7m b\u1eaft ngu\u1ed3n t\u1eeb ph\u1ea3n \u1ee9ng oxy h\u00f3a kh\u00f4ng ki\u1ec3m so\u00e1t c\u1ee7a \u0111\u1ed3ng.<\/p>\n\n\n\n

B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda m\u1ee9c \u0111\u1ed9 c\u1ee7a th\u1ebf oxy h\u00f3a-kh\u1eed kh\u00e1c nhau gi\u1eefa c\u00e1c kho\u00e1ng ph\u1ed5 bi\u1ebfn trong dinh d\u01b0\u1ee1ng \u0111\u1ed9ng v\u1eadt.<\/p>\n\n\n\n

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