| 富含DHA微藻对柴达木福牛生长性能和血清抗氧化指标的影响 |
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| 引用本文： | 徐晨晨,李慧,张寿,张松山,呼日,马玉林,孙宝忠,谢鹏,卢福山.富含DHA微藻对柴达木福牛生长性能和血清抗氧化指标的影响[J].中国畜牧兽医,2021,48(6):2074-2081. |
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| 作者姓名： | 徐晨晨 李慧 张寿 张松山 呼日 马玉林 孙宝忠 谢鹏 卢福山 |
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| 作者单位： | 1. 中国农业科学院北京畜牧兽医研究所, 北京 100193;2. 青海大学农牧学院, 西宁 810016;3. 青海省海西州农牧局, 德令哈 817099 |
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| 基金项目： | 柴达木肉牛产业发展关键技术研究与示范（2018-NK-107）；国家现代农业（肉牛/牦牛）产业技术体系（CARS-37）；"十三五"国家重点研发计划重点专项"青藏高原传统肉制品品质提升技术示范"（2018YFD0502404-3） |
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| 摘 要： | 本试验旨在研究富含二十二碳六烯酸（C22∶6n-3，DHA）的微藻对柴达木福牛生长性能、体尺指标、屠宰性能和血清抗氧化指标的影响。选用24头健康的24月龄柴达木福牛公牛，随机分为3组，每组8头。试验Ⅰ组（对照组）饲喂基础饲粮，试验Ⅱ和Ⅲ组在基础饲粮中分别添加100和200 g/d的微藻粉。预试期10 d，正试期42 d。测定生长性能、体尺指标、屠宰性能相关指标以及血清中总抗氧化能力（T-AOC）、超氧化物歧化酶（SOD）、谷胱甘肽过氧化物酶（GSH-Px）活性和丙二醛（MDA）含量。试验结果表明：①试验Ⅱ组平均日增重（ADG）显著高于对照组（P<0.05）；与对照组相比，试验Ⅱ和Ⅲ组的料重比（A/G）显著降低（P<0.05），饲粮添加富含DHA微藻对福牛的体尺指标和屠宰性能无显著影响（P>0.05）。②与对照组相比，饲粮中添加微藻可显著提高血清SOD活性和T-AOC （P<0.05），显著降低MDA含量（P<0.05）；试验Ⅲ组的GSH-Px活性显著提高（P<0.05）。综上，在本试验条件下，添加100 g/d富含DHA微藻可显著提高柴达木福牛的饲料转化率和血清抗氧化能力。
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| 关 键 词： | 柴达木福牛 富含DHA微藻 生长性能 血清抗氧化指标 |
| 收稿时间： | 2020-11-30 |
Effect of Dietary DHA-rich Microalgae on Growth Performance and Serum Antioxidant Indices of Qaidamford Cattle |
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| XU Chenchen,LI Hui,ZHANG Shou,ZHANG Songshan,HU Ri,MA Yulin,SUN Baozhong,XIE Peng,LU Fushan.Effect of Dietary DHA-rich Microalgae on Growth Performance and Serum Antioxidant Indices of Qaidamford Cattle[J].China Animal Husbandry & Veterinary Medicine,2021,48(6):2074-2081. |
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| Authors: | XU Chenchen LI Hui ZHANG Shou ZHANG Songshan HU Ri MA Yulin SUN Baozhong XIE Peng LU Fushan |
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| Institution: | 1. Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;2. College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China;3. Agriculture and Animal Husbandry Bureau of Haixi Prefecture, Delingha 817099, China |
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| Abstract: | The purpose of this study was to investigate the effects of adding different levels of DHA-rich microalgae to the diet on the growth performance,body measurement index,slaughter performance,and serum antioxidant indices of Qaidamford cattle.A total of 24 healthy 24-month-old Qaidamford bulls were randomly assigned to three groups with 8 cattle per group.GroupⅠ was taken as a control group and fed with basal diets.Groups Ⅱ and Ⅲ were supplemented with 100 and 200 g/d DHA-rich microalgae powder in the basic diet,respectively.The pre-experimental period lasted for 10 days,and the experimental period lasted for 42 days.Growth performance,body size indicators,slaughter performance related indicators,and total antioxidant capacity (T-AOC), superoxide dismutase (SOD),glutathione peroxidase (GSH-Px) activities and malondialdehyde (MDA) content in serum were determined.The results showed that,①Compared with the control group,the average daily gain of groupⅡ was significantly higher (P<0.05),the feed-to-weight ratio were significantly lower of groups Ⅱ and Ⅲ (P<0.05).The body size and slaughter performance had no significantly change among three groups (P>0.05) ②Serum T-AOC and SOD activitie were significantly increased (P<0.05),and the content of MDA (P<0.05) was significantly reduced by adding DHA-rich microalgae to the diet.The GSH-Px activity of group Ⅲ was significantly higher than that of the control group (P<0.05).In conclusion,adding 100 g/d of DHA-rich microalgae to the diet significantly improved the feed conversion rate and serum antioxidant capacity of Qaidamford cattle under the experimental conditions. |
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| Keywords: | Qaidamford cattle DHA-rich microalgae growth performance serum antioxidant index |
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