畜牧兽医学报 ›› 2024, Vol. 55 ›› Issue (10): 4428-4442.doi: 10.11843/j.issn.0366-6964.2024.10.016

• 遗传育种 • 上一篇    下一篇

湖羊及其不同杂交组合肌肉氨基酸、脂肪酸和挥发性风味物质比较分析

张丽娃1,2,3(), 岳耀敬1,2, 安雪姣1,2, 李建烨1,2, 杨博辉1,2, 徐振飞4, 张金霞4, 耿智广4, 郭艳丽3, 张瑞1,2,*()   

  1. 1. 中国农业科学院兰州畜牧与兽药研究所, 兰州 730050
    2. 农业农村部青藏高原畜禽遗传育种重点实验室, 兰州, 730050
    3. 甘肃农业大学动物科学技术学院, 兰州 730070
    4. 庆阳市农业科学研究院, 庆阳 745000
  • 收稿日期:2024-01-02 出版日期:2024-10-23 发布日期:2024-11-04
  • 通讯作者: 张瑞 E-mail:1311722352@qq.com;zhangrui03@caas.cn
  • 作者简介:张丽娃(2000-), 女, 甘肃甘谷人, 硕士生, 主要从事反刍动物营养研究, E-mail: 1311722352@qq.com
  • 基金资助:
    中国农业科学院科技创新工程重大科研任务(CAAS-ZDRW202106);中央级公益性科研院所基本科研业务费专项(1610322023014);甘肃省科技厅重大专项(21ZD11NM001);甘肃省科技厅重大专项(22ZD6NA037)

Comparative Analysis of the Contents of Amino Acids, Fatty Acids and Volatile Flavor Compounds in the Muscles of Hu Sheep and Their Different Hybrid Combinations

Liwa ZHANG1,2,3(), Yaojing YUE1,2, Xuejiao AN1,2, Jianye LI1,2, Bohui YANG1,2, Zhenfei XU4, Jinxia ZHANG4, Zhiguang GENG4, Yanli GUO3, Rui ZHANG1,2,*()   

  1. 1. Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
    2. Key Laboratory of Animal Genetics and Breeding on Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Lanzhou 730050, China
    3. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
    4. Qingyang Research Institute of Agricultural Sciences, Qingyang 745000, China
  • Received:2024-01-02 Online:2024-10-23 Published:2024-11-04
  • Contact: Rui ZHANG E-mail:1311722352@qq.com;zhangrui03@caas.cn

摘要:

旨在分析湖羊与其杂交组合绵羊肌肉胆固醇、氨基酸、脂肪酸和挥发性风味物质含量的差异。选取3月龄左右的湖羊(♂湖羊×♀湖羊,HH)、陶湖F1代(♂陶赛特羊×♀湖羊,TH)和南湖F1代(♂南丘羊×♀湖羊,NH)公羔各16只,在相同营养水平及饲养管理条件下单栏饲养,试验共95 d(其中预试期15 d)。饲喂试验结束后,每组选择接近组内平均体重的7只试验羊进行屠宰,采集背最长肌用于测定胆固醇、氨基酸、脂肪酸、挥发性风味物质含量。结果表明:NH组肌肉胆固醇含量显著高于TH组(P < 0.05)。三组羊肌肉中共鉴定出17种氨基酸,必需氨基酸中,TH和NH组苏氨酸、异亮氨酸、苯丙氨酸和赖氨酸含量均极显著高于HH组(P < 0.01);非必需氨基酸中,TH和NH组丝氨酸、组氨酸和脯氨酸含量极显著高于HH组(P < 0.01),而天冬氨酸和精氨酸含量显著高于HH组(P < 0.05);NH组甜味氨基酸和鲜味氨基酸含量显著高于HH组(P < 0.05)。三组羊肌肉中共鉴定出30种脂肪酸,饱和脂肪酸中,HH组硬脂酸和山嵛酸含量显著高于NH组(P < 0.05),在单不饱和脂肪酸中,NH组顺-10-十五烯酸含量显著高于HH组(P < 0.05),在多不饱和脂肪酸中,HH组花生四烯酸含量显著高于TH组,而二十碳五烯酸含量显著高于NH组(P < 0.05)。三组羊肌肉中共鉴定出33种挥发性风味物质,NH组2-庚醇含量显著高于TH和HH组,3-羟基-2-丁酮含量显著高于HH组,噻唑含量显著高于TH组;而2-庚酮含量显著低于HH组(P < 0.05)。综上所述,本地湖羊通过与无角陶赛特和南丘羊杂交,其后代肌肉具有更加理想的胆固醇、氨基酸和脂肪酸含量以及丰富的挥发性风味物质,为当地优质羊肉生产提供了参考。

关键词: 湖羊, 南湖F1代, 陶湖F1代, 氨基酸, 脂肪酸, 胆固醇, 挥发性风味物质

Abstract:

The aim of this study was to analyze the differences in muscle cholesterol, amino acids, fatty acids and volatile flavor compounds between Hu sheep and their hybrid combinations. Sixteen male lambs each of Hu×Hu (HH), Poll Dorset×Hu (TH) and Southdown×Hu (NH) F1. generations were selected at about 3 months of age, and were reared in a single pen under the same nutritional level and feeding management conditions, and the experiment lasted for a total of 95 days (with a pre-test period of 15 days). At the end of the feeding trial, seven test lambs from each group that were close to the average weight of the group were selected for slaughter, and the longissimus dorsi was collected for the determination of cholesterol, amino acids, fatty acids, and volatile flavor substances content. The results were showed as follows: Muscle cholesterol content in NH group was significantly higher than that in TH group (P < 0.05); A total of 17 amino acids were identified in the muscle of the three groups. Among essential amino acids, the contents of threonine, isoleucine, phenylalanine and lysine in TH and NH groups were extremely significantly higher than those in HH group (P < 0.01); Among non-essential amino acids, the contents of serine, histidine and proline in TH and NH groups were extremely significantly higher than those in HH group (P < 0.01), while the contents of aspartic acid and arginine were significantly higher than those in HH group (P < 0.05). The contents of sweet amino acid and umami amino acid in NH group were significantly higher than those in HH group (P < 0.05). Thirty fatty acids were identified in the muscles of all three groups. Among the saturated fatty acids, the contents of stearic acid and behenic acid in group HH were significantly higher than those in group NH (P < 0.05), and among the monounsaturated fatty acids, the cil-10-pentadecanoic acid was significantly higher in the NH group than in the HH group (P < 0.05). Among polyunsaturated fatty acids, the arachidonic acid content was significantly higher (P < 0.05) in the HH group than in the TH group, while C20:5n3 content in HH group was significantly higher than that in NH group; A total of 33 volatile flavor substances were identified in muscle of the three groups. The content of 2-heptanol in NH group was significantly higher than that in TH and HH groups, the content of 3-hydroxy-2-butanone in HH group was significantly higher, and the content of thiazole in TH group was significantly higher. The content of 2-heptanone was significantly lower than that in HH group (P < 0.05). In summary, the progeny muscles of local Hu sheep by crossing breed with Poll Dorset and Southdown have more desirable cholesterol, amino acid and fatty acid contents as well as rich volatile flavor substances, which provide a reference for local high-quality lamb meat production.

Key words: Hu sheep, Southdown×Hu F1 generation, Poll Dorset×Hu F1 generation, amino acid, fatty acid, cholesterol, volatile flavor compounds

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