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达乌里胡枝子提取物对肉仔鸡生产性能及抗氧化指标的影响
吴洪新1, 单昌辉2, 阿拉木斯1, 呼天明2, 王育青1
1.中国农业科学院 草原研究所,内蒙古 呼和浩特010010;2.西北农林科技大学 动物科技学院,陕西 杨凌712100
摘要:
【目的】 研究饲粮中添加达乌里胡枝子提取物(Extractive of Lespedeza davurica,LDE)对肉仔鸡生产性能及抗氧化能力的影响。【方法】 将350 只健康1 日龄商品代Avian肉仔鸡随机分为7 组,每组5个重复,对照组(CK)饲喂基础日粮,1~3 组饲喂基础日粮添加达乌里胡枝子乙酸乙酯萃取物 20,30,40 mg/kg;4~6 组饲喂基础日粮添加达乌里胡枝子正丁醇萃取物40,50,60 mg/kg。试验期42 d,42日龄时每组取5只鸡采血并取组织器官,测定血清及组织器官的超氧化物歧化酶(T-SOD)、谷胱甘肽还原酶(GR)活性及丙二醛(MDA)含量,并测定日增质量及料肉比。【结果】 达乌里胡枝子提取物对肉仔鸡的生长性能有改善作用,可以提高肉仔鸡的日增质量,降低料肉比;可增强肉仔鸡血清与心脏中T-SOD 活性,显著增强肝脏和肾脏的T-SOD活性(P<0.05);可增强肉仔鸡血清及肝脏、肾脏中GR活性,除试验1组外,均能显著增强心脏中GR活性(P<0.05);可显著降低肉仔鸡血清、心脏、肝脏和肾脏的MDA含量(P<0.05)。【结论】 达乌里胡枝子提取物对肉仔鸡生产性能有促进作用,可提高肉仔鸡的抗氧化能力。
关键词:  达乌里胡枝子  肉仔鸡  生产性能  抗氧化指标
DOI:
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基金项目:中央级公益性科研院所基本科研业务费专项资金项目
Effects of extractive of Lespedeza davurica on reproductive performance and antioxidant indices of broiler chickens
WU Hong-xin,SHAN Chang-hui,Alamus,HU Tian-ming,WANG Yu-qing
Abstract:
【Objective】 The effects of Lespedeza davurica extractive (LDE) on growth performance and antioxidant indices of broiler chickens were discussed.【Method】 A total of 350 1-day healthy Avian broilers of commercial strains were randomly assigned to seven treatments with five replicates.The experimental stage was forty-two days.The control group (CK) was fed basal diet,group 1 to 3 fed basal diet supplemented with 20,30,40 mg/kg of ethyl acetate extractive of LDE,group 4 to 6 fed basal diet supplemented with 40,50,60 mg/kg of n-butanol extractive of LDE.42-day-old broilers were slaughtered for blood,heart,liver and kidney.The antioxidant enzymes and Malondialdehyde (MDA) were measured in serum,heart,liver and kidney.The enzymes included superoxide dismutase(T-SOD),glutathione peroxidase (GR).Daily weight gain and feed conversion ratio were measured,too.【Result】 (1) Supplementing different levels of LDE can improve performance of broilers,elevate daily weight gain and improve feed conversion ratio;(2)Supplementing different levels of LDE can enhance T-SOD activity in serum and heart,significantly enhance T-SOD activity in liver and kidney(P<0.05);(3)Supplementing different levels of LDE enhances GR activity in serum,liver and kidney,and significantly enhance GR activity in heart(P<0.05) except for treatment 1;(4)Supplementing different levels of LDE significantly degrades MDA content in serum,heart,liver and kidney (P<0.05). 【Conclusion】 The LDE has auxoaction in broilers’ performance,and it can elevate antioxidant function of broiler chickens.
Key words:  Lespedeza davurica  broiler chicken  reproductive performance  antioxidant index

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