Journal of Agricultural Science and Technology ›› 2025, Vol. 27 ›› Issue (2): 150-157.DOI: 10.13304/j.nykjdb.2023.0541

• FOOD QUALITY & PROCESSING AND STORAGE • Previous Articles    

Effects of Astragalus Polysaccharides on Production Performance, Carcass Performance and Meat Quality of Stellar-fed Tan Sheep

Guoshun CHEN1(), Bin TIAN2, Yancheng GAO1, Yancui LI1, Wenjin TIAN3, Wenjing YANG4, Wancheng WU5, Lijun HUANG5   

  1. 1.College of Animal Science and Technology,Gansu Agricultural University,Lanzhou 730070,China
    2.Zhuanglang County Agricultural Technology Extension Center,Gansu Pingliang 744000,China
    3.Shoucheng Town Animal Husbandry and Veterinary Station,Minqin County Agriculture and Rural Bureau,Gansu Wuwei 733307,China
    4.Animal Husbandry Technology Extension Station of Anding District,Dingxi City,Gansu Dingxi 743000,China
    5.Yanchi Zhongquan Agriculture and Animal Husbandry Technology Co. Ltd. ,Ningxia Wuzhong 751500,China
  • Received:2023-07-12 Accepted:2024-02-04 Online:2025-02-15 Published:2025-02-14

黄芪多糖对舍饲滩羊生产性能、胴体性能及肉品质的影响

陈国顺1(), 田斌2, 高燕程1, 李延翠1, 田文锦3, 杨文静4, 吴万成5, 黄立军5   

  1. 1.甘肃农业大学动物科学技术学院,兰州 730070
    2.庄浪县农业技术推广中心,甘肃 平凉 744000
    3.民勤县农业农村局收成镇畜牧兽医站,甘肃 武威 733307
    4.定西市安定区畜牧技术推广站,甘肃 定西 743000
    5.盐池县中泉农牧科技有限公司,宁夏 吴忠 751500
  • 作者简介:陈国顺 E-mail:chengs@gsau.edu.cn
  • 基金资助:
    甘肃省重点研发计划项目(23YFNA002);甘肃省科技专员专项(23CXGA0051)

Abstract:

To elucidate the effects of astragalus polysaccharides on the growth, slaughtering performance and meat quality of Tan sheep, 24 healthy, similar-weight (22.17±1.21 kg) 50-days-old Tan lambs were randomly divided into 4 groups for fattening trials, including basal diet group (control group), basal diet+0.05% astragalus polysaccharide group (test group Ⅰ), basal diet+0.10% astragalus polysaccharide group (test group Ⅱ) and basal diet+0.15% astragalus polysaccharide group (test group Ⅲ). The weights were determied on 0, 10 and 70 d of the trial, and the slaughter performance and meat quality were analyzed on at the end of the trial (70 d), respectively. The results showed that, compared with control group, the final body weight (FBW) and average daily gain (ADG) of test group Ⅱ were significantly increased, and the feed conversion rate was significantly decreased. The carcass weight and slaughter rate of test group Ⅱ increased significantly, the cooked meat rate of test group Ⅱ and test group Ⅲ increased significantly. The back fat thickness of test group Ⅰ and test group Ⅱ treatment was significantly reduced, and the L* value of test group Ⅱ was significantly reduced. The contents of glycine, aspartic acid and total amino acids in muscle of Tan sheep treated with test group Ⅱ and test group Ⅲ were significantly increased, and the content of umami amino acids was significantly increased in treatments with astragalus polysaccharides. The contents of monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids in mutton of Tan sheep treated with test group Ⅱ were significantly increased. And the value of MUFA/TFA (total fatty acids) of test group Ⅱ and test group Ⅲ increased significantly. In summary, the addition of 0.10% astragalus polysaccharides to the diet could improve the growth performance, carcass performance and meat quality of Tan sheep.

Key words: Astragalus polysaccharides, Tan sheep, production performance, mutton, fatty acid

摘要:

为阐明黄芪多糖对滩羊生长性能、屠宰性能和肉品质的影响,选择24只健康、体重相近(22.17±1.21 kg)的50日龄滩羊公羔,随机分为4组进行育肥试验,试验日粮分别设置为基础日粮组(对照组)、基础日粮+0.05%黄芪多糖组(试验Ⅰ组)、基础日粮+0.10%黄芪多糖组(试验Ⅱ组)和基础日粮+0.15%黄芪多糖组(试验Ⅲ组)。在试验的第0、10和70天分别称重,在试验期结束时(第70天)屠宰并测定胴体性性能和肉品质。结果显示,与对照组相比,试验Ⅱ组滩羊的末重和平均日增重显著增加,饲料转化率显著降低;试验Ⅱ组的胴体重和屠宰率显著增加;试验Ⅱ组和试验Ⅲ组的熟肉率显著增加;试验Ⅰ组和试验Ⅱ组的背膘厚显著降低,试验Ⅱ组处理的亮度(L*)显著降低;试验Ⅱ组和试验Ⅲ组滩羊肌肉的甘氨酸、天冬氨酸和总氨基酸含量显著增加,鲜味氨基酸含量在添加了黄芪多糖处理中显著增加;试验Ⅱ组的单不饱和脂肪酸(monounsaturated fatty acids,MUFA)和多不饱和脂肪酸含量显著增加;试验Ⅱ组和试验Ⅲ组的MUFA/TFA(总脂肪酸,total fatty acids)显著增加。综上所述,日粮中添加0.10%黄芪多糖可以提高滩羊的生长性能,改善胴体性能及肉品质。

关键词: 黄芪多糖, 滩羊, 生产性能, 羊肉, 脂肪酸

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