Effect of nano-selenium on the activities of glutathione peroxidase and type- I deiodinase in liver of avian broiler chicks
Avian broiler chicks, 1 d of age, were used to investigate the effects of nano elemental selenium (nano-Se) or sodium selenite (Na<sub>2</sub>SeO<sub>3</sub>) on the activities of glutathione peroxidase and type-Ⅰdeiodinase in liver. The chicks were allocated to 11 treatments...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2005-09-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2005.05.0633 |
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| Summary: | Avian broiler chicks, 1 d of age, were used to investigate the effects of nano elemental selenium (nano-Se) or sodium selenite (Na<sub>2</sub>SeO<sub>3</sub>) on the activities of glutathione peroxidase and type-Ⅰdeiodinase in liver. The chicks were allocated to 11 treatments, each of which had 3 pens of 45 chicks per pen. The eleven dietary treatments were basal diet only (containing 0.040 mg/kg Se) and basal diet +0.10, 0.20, 0.30, 0.40 or 0.50 mg/kg Se as Na<sub>2</sub>SeO<sub>3</sub> or nano-Se. The results were as follows: (i) When Na<sub>2</sub>SeO<sub>3</sub> was added to the diet, the growth performance and GSH-Px activities in liver of chicks increased with the increase in Se within the Se concentration range of 0-0.20 mg/kg and remained steady at the peak value within the within the range of 0.20-0.40 mg/kg. (ii) Supplement of 0.50 mg/kg Se as Na<sub>2</sub>SeO<sub>3</sub> to the diet reduced (P<0.05) growth performance and GSH-Px activities as compared with the addition of Se at a concentration range of 0.20-0.40 mg/kg. With addition of nano-Se, the growth performance and GSH-Px activities remained steady at the peak value even at a concentration of 0.50 mg/kg Se. (iii) There were no difference in growth performance between the treatments of nano-Se and Na<sub>2</sub>SeO<sub>3</sub> when the added concentration of Se was within 0.10-0.40 mg/kg. The chicks had higher (P<0.05) growth performance and GSH-Px at a concentration of 0.50 mg/kg as nano-Se than Na<sub>2</sub> SeO<sub>3</sub>. (iv) Supplementation with Se increased the activity of type-I deiodinase in liver. The extent of increase was, however, not affected by source of Se and the concentration of Se added. The results implicated that the optimal Se concentration range on the Weinberg curve for nano-Se is wider than that for Na<sub>2</sub> SeO<sub>3</sub>. |
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| ISSN: | 1008-9209 2097-5155 |