| 摘要: |
| [目的]研究外源5'-尿苷酸对断奶仔猪生长性能和抗氧化能力的影响.[方法]将90头28日龄断奶的"杜×长×大"三元杂交断奶仔猪,随机分成3组,每组3个重复,对照组饲喂基础日粮,试验Ⅰ和Ⅱ组在基础日粮中分别添加质量分数0.15%,0.25% 5'-尿苷酸日粮,试验期为28 d.测定断奶仔猪生长性能、腹泻频率,以及试验开始后第7,14和28天断奶仔猪血清中超氧化物歧化酶(SOD)活性、总抗氧化能力(T-AOC)、过氧化氢酶(CAT)活性和MDA含量.[结果]与对照组相比,Ⅱ组断奶仔猪平均日增质量、日采食量均呈上升趋势,料重比、腹泻频率均呈下降趋势,但差异不显著(P>0.05),第7和14天,Ⅱ组断奶仔猪血清SOD活性分别较对照组提高20.89%和25.35%(P<0.05);第14天T-AOC和第28天CAT活性均显著高于对照组(P<0.05),第14天MDA含量显著低于对照组(P<0.05).[结论]日粮中添加质量分数0.25% 5'-尿苷酸,可以提高断奶仔猪的生长性能和抗氧化能力. |
| 关键词: 外源5'-尿苷酸 断奶仔猪 生长性能 抗氧化能力 |
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| 基金项目:福建省自然科学基金，福建省科技厅资助省属高校项目 |
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| Effects of urine 5′-monophosphate on the Growth Performance and Antioxidant Capability in Weaned Piglets |
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| Abstract: |
| 【Objective】 The study investigated the effects of urine 5′-monophosphate on growth performance and antioxidant capability in weaned piglets. 【Method】 90 piglets (Duroc×Landrace×Large white) weaned at 28th day were randomly divided into 3 groups of 3 replicates.The control group was fed basal diet,test groupⅠandⅡwere supplemented with 0.15% and 0.25% urine 5′-monophosphate respectively.The experiment lasted for 28 days.Growth performance,diarrhea frequency and activity of SOD,CAT,T-AOC and content of MDA at 7th ,14th and 28th day were determined. 【Result】 Compared to the control group,there was a tendency to increase average daily gain,daily feed intake and decrease feed/gain,diarrhea frequency for weaned piglets in group Ⅱ(P>0.05).The SOD activity increased by 20.89% and 25.35% on 7th and 14th day(P<0.05),T-AOC on 14th day and activity of CAT on 28th day increased (P<0.05),content of MDA on 14th day decreased in group Ⅱ(P<0.05).【Conclusion】 0.25% urine 5′-monophosphate addition in basal diet could increase performance and antioxidant capability in weaned piglets. |
| Key words: urine 5′-monophosphate weaned piglet growth performance antioxidant capability |
