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日粮中添加丁香和龙牙草或香蜂花混合物对肉鸡生产性能、血脂代谢和抗氧化状态的影响 被引量:1
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作者 甘利平 庄雪芹 张桂国(译) 《中国饲料添加剂》 2013年第1期37-41,共5页
本文研究了肉鸡日粮中添加1%的丁香花蕾粉与0.2%香蜂花或0.2%的龙牙草提取物的混合物(后两种提取物都通过饮水供给)对42日龄肉鸡体重、采食量、饲料转化率、胴体产量、血液中过氧化物歧化酶(SOD)和谷胱甘肽过氧化酶(GSH—Px... 本文研究了肉鸡日粮中添加1%的丁香花蕾粉与0.2%香蜂花或0.2%的龙牙草提取物的混合物(后两种提取物都通过饮水供给)对42日龄肉鸡体重、采食量、饲料转化率、胴体产量、血液中过氧化物歧化酶(SOD)和谷胱甘肽过氧化酶(GSH—Px)活性,巯基群的浓度、血浆丙二醛(MDA)、维生素A、维生素E、低密度脂蛋白、血清胆固醇、总脂量、甘油三酯及高密度脂蛋白的影响。试验选用1日龄120只雌雄混养的Cobb500肉仔鸡随机分成3组。试验对照组(第一组)肉仔鸡供给无添加剂的基础日粮(BD)。其它两个作为试验组的肉仔鸡则饲喂添加丁香(SyzygiumaromaticumL.)粉(10g/kgDM)的试验日粮,持续42天。并且,两个试验组肉仔鸡分别饲喂用水稀释的香蜂花(MellisaofficinalisL.)提取物或龙牙草(AgrimoniaeupatoriaL.)提取物(稀释比例为1000:2)。结果表明,本试验条件下肉仔鸡日粮中添加不同植物性提取物对42日龄肉仔鸡的生长性能无显著影响。此外,这些添加剂对SOD、GSH—Px活性、维生素A的浓度以及脂质代谢相关指标都没有影响。另一方面,与对照组相比,两个试验组肉仔鸡的血液抗氧化指标均表现出有益效应(巯基群、维生素E浓度的增加,MDA浓度降低)(P〈0.05)。进一步分析表明丁香与香蜂花的混合物比丁香与龙牙草的混合物在肉仔鸡的血液中有更好的抗氧化能力(维生素E含量分别是11.26±0.73和9.73±0.64Ixmol/L,P〈0.05)。由此可以推断,在肉鸡日粮中添加丁香花粉末搭配溶解于饮水中的香蜂花或龙牙草提取物对42日龄的肉仔鸡具有提高其抗氧化状态的潜力,但对其生长性能或脂类代谢指标无显著影响。 展开更多
关键词 家禽 草本物质 体重 饲料转化率 血液化学 脂质代谢
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Identification and quality evaluation of Lepidium meyenii. (Maca) based on gas chromatographic analysis of its essential oils from roots 被引量:5
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作者 金文闻 熊悦 余龙江 《Agricultural Science & Technology》 CAS 2006年第3期2-9,共8页
Lepidium meyeniiWalp. (Maca), a perennial herbaceous plant with narrow distdbution in the Andean region, was cultivated by local residents as early as 1600 B.C. It has high nutritional values and multiple medicinal ... Lepidium meyeniiWalp. (Maca), a perennial herbaceous plant with narrow distdbution in the Andean region, was cultivated by local residents as early as 1600 B.C. It has high nutritional values and multiple medicinal effects. In recent years the plant source of Maca has been greatly scarce since Maca products are increasingly becoming popular in the world. This makes the study urgent on the identification and quality evaluation of Maca materials. In present work, four Mace samples of different origins or handlings and three other natural plants, including radish, odental ginseng and American ginseng, were investigated. Their essential oils (steam distillates) of the hypogeal parts were weighed and analyzed by GC/MS. Through comparison of the characteristics of their chromatograms, it was found that the essential oil of Maca had unique GC/MS behaviors, and the characteristic peaks produced by the major essential oil components (Phenylacetonitrile, Benzaldehyde, 3-Methoxyphenylacetonitrile, etc) were distinct. Furthermore, the chromatograms of several Maca samples showed a similar qualitative pattern except for some differences in the quantitative composition, and the percentage of total essential oils in the samples varied from 0.88 % to 1.59 %. These behaviors and technologies can be applied to the identification of Maca materials in the markets and be a supplement to assess the quality of Maca matedals. 展开更多
关键词 Lepidium meyenii IDENTIFICATION essential oil GC/MS
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