畜牧与饲料科学 ›› 2023, Vol. 44 ›› Issue (4): 101-108.doi: 10.12160/j.issn.1672-5190.2023.04.014

• 食品科学 • 上一篇    下一篇

内蒙古呼伦贝尔草原短尾羊内脏Se含量检测评价

张利妹1,郭军1,叶乐1,刘雨佳1,刘晓齐1,郭灵芝2   

  1. 1.内蒙古农业大学食品科学与工程学院,内蒙古 呼和浩特 010018
    2.呼伦贝尔市鄂温克族自治旗农牧和科技局,内蒙古 鄂温克族自治旗 021100
  • 收稿日期:2022-02-07 修回日期:2023-03-25 出版日期:2023-07-30 发布日期:2023-08-30
  • 通讯作者: 郭军
  • 作者简介:张利妹(1997—),女,硕士研究生,主要研究方向为食品加工与安全。
  • 基金资助:
    鄂温克族自治旗农牧和科技局项目“草原短尾羊羊肉营养品质特征解析及真实性判别模型建立”(鄂财字〔2022〕42号)

Determination and Evaluation on Visceral Selenium Content in Hulun Buir Grassland Short-tailed Sheep in Inner Mongolia

ZHANG Limei1,GUO Jun1,YE Le1,LIU Yujia1,LIU Xiaoqi1,GUO Lingzhi2   

  1. 1. College of Food Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China
    2. Agriculture,Animal Husbandry and Science and Technology Bureau of Ewenki Autonomous Banner of Hulun Buir City,Ewenki Autonomous Banner 021100,China
  • Received:2022-02-07 Revised:2023-03-25 Online:2023-07-30 Published:2023-08-30
  • Contact: GUO Jun

摘要:

[目的]呼伦贝尔草原短尾羊是2020年底农业农村部公布的蒙古绵羊优良品种。本文较为系统地检测评价了呼伦贝尔草原短尾羊内脏Se含量水平。[方法]从内蒙古呼伦贝尔市鄂温克草原采集23只草原短尾羊的心脏、肺脏、肾脏、肝脏、小肠、瘤胃、网胃和皱胃样品共170份,采用原子荧光光谱法测定Se含量,并进行统计比较。[结果]呼伦贝尔草原短尾羊内脏Se含量(X±SD,μg/100 g)由高到低依次为肾脏(47.26±19.18)、肺脏(6.30±2.94)、小肠(6.16±2.26)、心脏(5.63±3.82)、肝脏(4.49±2.52)、网胃(2.96±2.03)、瘤胃(2.84±1.40)和皱胃(2.44±1.81)。肾脏Se含量是其他内脏Se含量的7.5~19.4倍。实质性器官Se含量均值与胃肠道Se含量均值差异极显著(P<0.01)。内脏Se含量呈年龄相关性,30月龄和18月龄草原短尾羊内脏Se含量整体高于6月龄和42月龄。肾脏、肺脏、小肠、心脏、瘤胃和皱胃Se含量在4个年龄组间具有显著(P<0.05)差异,其中,肾脏Se含量年龄差异最大,30、18、42月龄肾脏Se含量比6月龄高2.1~2.5倍。草原短尾羊内脏Se含量普遍高于肌肉Se含量。[结论]呼伦贝尔草原短尾羊内脏对Se的生物富集效果显著,肾脏为富Se食品,其他内脏也属于富Se或含Se食品。呼伦贝尔市地处我国东北缺Se地区,建议重视草原短尾羊科学补Se或富Se喂养,可使羊肉和内脏更加营养健康。

关键词: 内脏, Se含量, 草原短尾羊, 呼伦贝尔市

Abstract:

[Objective] Hulun Buir grassland short-tailed sheep is an excellent breed of Mongolian sheep announced by the Ministry of Agriculture and Rural Affairs at the end of 2020. This paper performed systematic detection and evaluation of visceral selenium (Se) content in this sheep breed. [Method] A total of 170 visceral samples, including heart, lung, kidney, liver, small intestine, rumen, reticulum, and abomasum, were collected from 23 grassland short-tailed sheep reared in Ewenki grassland in Hulun Buir City, Inner Mongolia. The visceral Se content was determined by atomic fluorescence spectroscopy and the obtained data were subjected to statistical analysis. [Result] The highest visceral Se content (X±SD, μg/100 g) of the grassland short-tailed sheep was observed in kidney (47.26±19.18), followed by lung(6.30±2.94), small intestine (6.16±2.26), heart (5.63±3.82), liver (4.49±2.52), reticulum (2.96±2.03), rumen (2.84±1.40), and abomasum (2.44±1.81). The Se content of kidney was 7.5-19.4 times higher than that of the other visceral organs.The mean value of the Se content in substantive organs was extremely significantly (P<0.01) different from that in gastrointestinal tract. The visceral Se content exhibited a correlation with the age of the grassland short-tailed sheep. In general, higher visceral Se contents were found in 30- and 18-month-old sheep in comparison to 6- and 12-month-old sheep. The Se contents of kidney, lung, small intestine, heart, rumen, and abomasum were significantly (P<0.05) different among the four age groups. The most obvious age-related difference of visceral Se content was observed in kidney, and the Se content in kidney in 30-, 18-, 42-month-old sheep was 2.1-2.5 times higher than that in 6-month-old sheep. The visceral Se content was generally higher than that of muscle. [Conclusion] The viscera of Hulun Buir grassland short-tailed sheep have a significant effect of Se bioaccumulation. Kidney of this sheep breed is Se-rich food, and the other viscera are also Se-rich or Se-containing foods. Hulun Buir City is located in the Se shortage area in Northeast China. It is recommended to attach more importance to Se supplementation or Se-rich feeding of grassland short-tailed sheep in a scientific manner, which can make mutton and viscera more nutritious and healthy.

Key words: viscus, selenium content, grassland short-tailed sheep, Hulun Buir City

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