Stable isotopes verify geographical origin of yak meat from Qinghai-Tibet plateau

Nie, Jing; Shao, Shuai; Wan, Xiongbo; Li, Zhi; Yu, Chongchong; Li, Rui; Wang, Wei; Ji-rong, LI; Yuan, Yuwei; Rogers, Karyne M.

doi:10.1016/j.meatsci.2020.108113

Cited by 28 publications

(7 citation statements)

References 33 publications

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“…Literature showed that the meat samples of yak (B. grunniens) grown at different altitudes of China had a variable fat content [29]. As stated in a previous report, the beef samples of Xinjiang brown cattle obtained from the farm in Xinjiang Province of China had crude fat and crude protein contents of 1.88% and 21.53%, respectively [21].…”

Section: Effect Of Different Selenium Doses On the Proximate Composition Of Beef Samplesmentioning

confidence: 99%

Growth performance and beef quality of Xinjiang brown cattle fed with different dosages of selenized yeast

Li¹,

Sun²,

JiaZhou³

et al. 2021

ScienceAsia

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Section: Effect Of Different Selenium Doses On the Proximate Composition Of Beef Samplesmentioning

confidence: 99%

Growth performance and beef quality of Xinjiang brown cattle fed with different dosages of selenized yeast

Li¹,

Sun²,

JiaZhou³

et al. 2021

ScienceAsia

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“…Currently, in the Tibet region of China, the yak is the main economic animal (57). Ninety percent of the world's yak meat is produced in the Qinghai-Tibet Plateau of China (58). However, the growth of yak is relatively slow and the reproductive cycle is longer than that of cattle, so the yield of yak meat is still not high enough (59).…”

Section: Discussionmentioning

confidence: 99%

House feeding pattern increased male yak fertility by improving gut microbiota and serum metabolites

Zhu

Li²,

Lousang-zhaxi³

et al. 2022

Front. Vet. Sci.

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Yaks usually live in an extremely harsh natural environment resulting in low reproductive performance, so the production of yak cannot meet local demand in China. In order to solve this problem, the experiment aims to explore the effect of different feeding modes on the semen quality of male yaks, so as to provide a theoretical basis for improving the yield of yaks in Tibet. We used the combined analysis of metabolomics and microbial sequencing to explore the underlying mechanisms that affect the differences in semen quality between the house feeding (HF) system and the free range (FR). The results showed that the sperm motility (P < 0.001) and sperm concentration (P < 0.05) in the HF group were significantly higher than the FR group, and the abnormal sperm rate (P < 0.01) in HF was significantly lower compared to FR. House feeding modes increased some beneficial materials in blood and testis especially some antioxidants, unsaturated fatty acids, and amino acids. House feeding group increased some gut microbiota at genus level namely Rikenellaceae, Bacteroides, Prevotellaceae_UCG-004, Bacteroidales_RF16, and Alloprevotella, DgA-11. It was interesting that blood metabolites, testicular metabolites, and fecal microbiota were well-correlated with sperm parameters. Meanwhile, the blood metabolites and testicular metabolites were well-correlated with microbes. The result indicated that the HF model was beneficial for yak semen quality by improving the gut microbiota and blood metabolism to increase yak fertility.

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“…At present, stable isotope ratio analysis is considered a more accurate and quicker method and has become the most commonly used technology for validating the traceability and authenticity of animal-derived foods. Geographical origins of some animal-derived products, such as meat, dairy products, seafood, and honey, were successfully traced using stable isotope ratio analysis ( 16 – 19 ). Meanwhile, research on the transformation law of stable isotopes from raw material to the terminal product during processing has also been carried out ( 20 – 22 ), which can further provide theoretical support for animal-derived product traceability.…”

Section: Introductionmentioning

confidence: 99%

Geographical traceability of gelatin in China using stable isotope ratio analysis

Jiang²,

Li³

et al. 2023

Front. Nutr.

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Geographical traceability is crucial to the quality and safety control of gelatin. However, currently, methods for gelatin traceability have not been established anywhere in the world. This study aimed to investigate the possibility of differentiating the geographical origins of gelatin from different regions in China using stable isotope technology. To achieve this objective, 47 bovine stick bone samples from three different regions (Inner Mongolia, Shandong, and Guangxi, respectively) in China were collected, and gelatin was extracted from these bones using the enzymatic method. The fingerprint characteristics of stable isotopes of δ13C, δ15N, and δ2H of gelatin from different regions in China were studied. Moreover, isotopic changes from the bone to gelatin during the processing were examined to evaluate the effectiveness of these factors as origin indicators. The results of the one-way analysis of variance (ANOVA) showed that the δ13C, δ15N, and δ2H of gelatin from different regions display significant differences, and using the linear discriminant analysis (LDA), the correct differentiation of origin reached 97.9%. Certain differences in stable isotope ratios were observed during the processing of bone to gelatin samples. Nonetheless, the fractionation effect caused by the processing of bone to gelatin samples was not sufficient to influence the identification of gelatin from different origins, which proves that δ13C, δ15N, and δ2H are effective origin indicators of gelatin. In conclusion, the stable isotope ratio analysis combined with the chemometric analysis can be used as a reliable tool for identifying gelatin traceability.

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Stable isotopes verify geographical origin of yak meat from Qinghai-Tibet plateau

Cited by 28 publications

References 33 publications

Growth performance and beef quality of Xinjiang brown cattle fed with different dosages of selenized yeast

Growth performance and beef quality of Xinjiang brown cattle fed with different dosages of selenized yeast

House feeding pattern increased male yak fertility by improving gut microbiota and serum metabolites

Geographical traceability of gelatin in China using stable isotope ratio analysis

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