畜牧兽医学报 ›› 2024, Vol. 55 ›› Issue (1): 110-119.doi: 10.11843/j.issn.0366-6964.2024.01.012

• 遗传育种 • 上一篇    下一篇

湖羊与三元杂交绵羊夏杜湖、夏澳湖肉质特性比较研究

王海波1,2, 占今舜1, 谷志勇1,3, 陈新锋4, 潘月1,3, 贾浩滨1, 钟小军1, 李开嵘4, 赵生国2*, 霍俊宏1*   

  1. 1. 江西省农业科学院畜牧兽医研究所, 南昌 330200;
    2. 甘肃农业大学动物科学技术学院, 兰州 730070;
    3. 天津农学院动物科学与动物医学学院, 天津 300384;
    4. 赣州绿林湾农牧有限公司, 赣州 341103
  • 收稿日期:2023-07-10 出版日期:2024-01-23 发布日期:2024-01-24
  • 通讯作者: 霍俊宏,主要从事反刍动物遗传育种与繁殖研究,E-mail:hjh_0222@126.com;赵生国,主要从事动物遗传资源保护及利用研究,E-mail:zhaosg@gsau.edu.cn
  • 作者简介:王海波(1992-),男,甘肃会宁人,博士生,主要从事动物遗传育种与繁殖研究,E-mail:wanghaibo8815@163.com
  • 基金资助:
    江西现代农业科研协同创新专项(JXXTCX201702-04);江西省现代农业产业技术体系建设专项(JXARS-13-肉羊岗位)

Comparative Study on Meat Quality Characteristics of Three-Way Hybrid Sheep Charolais×Duper×Hu and Charolais×Australian White×Hu and Hu Sheep

WANG Haibo1,2, ZHAN Jinshun1, GU Zhiyong1,3, CHEN Xinfeng4, PAN Yue1,3, JIA Haobin1, ZHONG Xiaojun1, LI Kairong4, ZHAO Shengguo2*, HUO Junhong1*   

  1. 1. Institute of Animal Husbandry and Veterinary, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China;
    2. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    3. College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300384, China;
    4. Ganzhou Lulinwan Agriculture and Animal Husbandry Co. LTD., Ganzhou 341103, China
  • Received:2023-07-10 Online:2024-01-23 Published:2024-01-24

摘要: 旨在探究湖羊与三元杂交绵羊夏杜湖、夏澳湖肉质特性。本研究选择健康且出生体重相近的公羔((3.61±0.65) kg)随母哺乳至45天后集中断奶。断奶后分成3个处理组(湖羊组、夏澳湖组和夏杜湖组),每个处理15只公羔,3个处理的45只羔羊混合饲养至6月龄屠宰,并分析背最长肌组织形态及背最长肌的肉品质及营养成分。试验期饲喂全混合基础日粮。结果表明:1)相对于湖羊,三元杂交绵羊背最长肌亮度(L*)显著降低,熟肉率显著提高(P<0.05),但其对背最长肌pH、剪切力、失水率、红度(a*)和黄度(b*)无显著影响(P>0.05)。2)相对于湖羊,三元杂交绵羊背最长肌纤维直径和平均面积显著提高,但肌纤维数量和密度显著降低(P<0.05)。3)相对于湖羊,三元杂交绵羊背最长肌中粗蛋白、必需和非必需氨基酸的含量显著提高(P<0.05),但对总饱和脂肪酸、不饱和脂肪酸及微量元素(铜、铁、锌和锰)无显著影响(P>0.05)。4)夏杜湖和夏澳湖在背最长肌pH、剪切力、失水率、熟肉率、肉色、肌纤维数量、肌纤维面积、肌纤维密度、常规营养成分(水分、粗蛋白、粗脂肪、粗灰分)、微量元素(铜、铁、锌和锰)、必需和非必需氨基酸的含量、总饱和脂肪酸和不饱和脂肪酸含量均无显著差异(P>0.05)。综上所述,三元杂交绵羊能够显著改善肉品质,增加背最长肌中粗蛋白和氨基酸水平,具有培育生产优质羊肉的潜力,且同一终端父本杂交后代在肉质特性中无明显差异。

关键词: 绵羊, 肌纤维, 微量元素, 氨基酸, 脂肪酸

Abstract: The aim of this experiment was to compare the meat quality characteristics of three-way hybrid sheep Charolais×Duper×Hu (CDH) and Charolais×Australian white×Hu (CAH) and Hu sheep. Healthy male lambs with similar birth weight ((3.61±0.65) kg)were selected and followed by mothers until 45 days, followed by intensive weaning. The weaned lambs were then divided into 3 treatment groups (Hu, CAH and CAH groups) with 15 lambs in each treatment. In addition, a total of 45 lambs from 3 treatments were mixed fed until 6 months of age for slaughter. Subsequently, the tissue morphology, meat quality and nutritional composition of longissimus dorsi were analyzed. During the experiment period, the whole mixed basal diet was fed. The results showed as follows: 1) Compared with Hu sheep, longissimus dorsi muscle L* was significantly decreased, and cooked meat rate was significantly increased (P<0.05), but there was no significant difference in longissimus dorsi muscle pH, shear force, water loss rate, a* and b* in three-way hybrid sheep (P>0.05). 2) Compared with Hu sheep, the muscle fiber diameter and average muscle fiber area of longissimus dorsi muscle of three-way hybrid sheep were significantly increased, while the number and density of muscle fibers were significantly decreased (P<0.05). 3) Compared with Hu sheep, the contents of crude protein, essential and non-essential amino acids in longissimus dorsi muscle of ternary hybrid sheep were significantly increased (P<0.05), but the contents of total saturated fatty acids, unsaturated fatty acids and trace elements (Cu, Fe, Zn and Mn) were not significantly affected (P>0.05). 4) There were no significant differences in pH, shear force, water loss rate, cooked meat rate, meat color, muscle fiber quantity, muscle fiber area, muscle fiber density, conventional nutrients (moisture, crude protein, crude fat, crude ash), trace elements (Cu, Fe, Zn and Mn), essential and non-essential amino acids contents, and total saturated and unsaturated fatty acids contents in longissimus dorsi muscle between CAH and CDH (P>0.05). In conclusion, there was no significant difference in meat quality between the hybrid offspring of the same terminal father. Interestingly, three-way hybrid sheep can significantly improve meat quality, increase crude protein and amino acid levels in longissimus dorsi muscle, and have the potential to breed and produce high-quality mutton.

Key words: sheep, muscle fibers, trace elements, amino acids, fatty acids

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