动物营养学报2015，Vol.27Issue(12)：3895-3903,9.DOI:10.3969/j.issn.1006-267x.2015.12.031
纳米硒对蛋鸽生产性能、蛋中硒含量及血清抗氧化指标的影响
Effects of Nano-Selenium on Performance, Egg Selenium Content and Serum Antioxidant Indices of Pigeons
摘要
Abstract
This experiment was conducted to study the effects of nano-selenium on performance, egg selenium content and serum antioxidant indices of pigeons. A total of 180 pairs of healthy pigeons ( 180 to 210 days of age) were randomly allotted to 6 groups with 6 replicates in each group, and each replicate contained 5 pairs of pigeons. Pigeons in the control group were fed a basal diet, and pigeons in experimental groups were fed the diets supplemented with 0.1, 0.2, 0.3, 0.4 and 0.5 mg/kg nano-selenium, respectively. The adjustment peri-od lasted for 7 days, and the experimental period lasted for 42 days. The results showed as follows:1) dietary supplemented with nano-selenium had no significant effect on the average egg weight, egg number and feed to egg ratio of pigeons in the 21st and 42nd days ( P>0.05) . 2) Dietary supplemented with nano-selenium had no significant effect on eggshell thickness and egg shape index of pigeons in the 21st and 42nd days (P>0.05). Compared with the control group, the yolk index of 0.2 mg/kg nano-selenium group in the 21st days was sig-nificantly increased (P<0.05), and the yolk color of 0.4 and 0.5 mg/kg nano-selenium groups in the 21st days was significantly increased (P<0.01); the yolk color of 0.5 mg/kg nano-selenium group in the 42nd days was significantly increased ( P<0.01) . 3) Compared with the control group, the content of manganese, zinc and copper in yolk of experimental groups in the 21st and 42nd days was no significant difference ( P>0.05), the yolk selenium content of 0.4 and 0.5 mg/kg nano-selenium groups in the 21st days was significant-ly increased (P<0.01), and that in the 42th days was significantly increased (P<0.05). 4) Compared with the control group, the serum glutathione peroxidase ( GSH-Px) activity of 0.4 and 0.5 mg/kg nano-selenium groups in the 21st days was significantly increased ( P<0.01) , and the serum malonaldehyde ( MDA) content was significantly decreased ( P<0.01) , but the serum total antioxidant capacity ( T-AOC) and total superoxide dismutase (T-SOD) activity had no significant difference (P>0.05); the serum T-AOC and T-SOD activity of 0.4 and 0.5 mg/kg nano-selenium groups in the 42nd days were significantly increased ( P<0.05) , the ser-um GSH-Px activity was significantly increased ( P<0.01) , and the serum MDA content was significantly de-creased ( P<0.01) . In conclusion, the optimum level of nano-selenium is 0.4 mg/kg, and the experiment last for 42 days' effect is more obvious.关键词
蛋鸽/纳米硒/生产性能/蛋黄硒含量/抗氧化Key words
pigeons/nano-selenium/performance/yolk selenium content/antioxidant分类
畜牧业引用本文复制引用
杨清丽,陈继发,曲湘勇,罗玲,徐勋,方全民..纳米硒对蛋鸽生产性能、蛋中硒含量及血清抗氧化指标的影响[J].动物营养学报,2015,27(12):3895-3903,9.基金项目
湖南农业大学产学研合作项目(13099) （13099）
