Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (9): 3262-3271.doi: 10.11843/j.issn.0366-6964.2022.09.040

• RESEARCH NOTES • Previous Articles     Next Articles

Analysis of Lipidome Difference between High and Low Intramuscular Fat Content Groups in Beijing Black Pigs

ZHANG Run1,2, LIU Hai3, YANG Man2, ZHANG Longchao2*, WANG Yuan1*   

  1. 1. College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China;
    2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. Beijing Black Six Animal Husbandry Technology Company Limited, Beijing 102211, China
  • Received:2022-03-07 Online:2022-09-23 Published:2022-09-23

Abstract: The purpose of this experiment was to reveal the relationship between the intramuscular fat content and lipidomics in Beijing black pig. In this experiment, 11 samples of high intramuscular fat group and 19 samples of low intramuscular fat group were selected from 400 210-day-old Beijing black pigs, and the average intramuscular fat content was 3.89% and 0.81%, respectively. For the selected individuals in high and low groups, 60 mg muscle samples were taken for lipid extraction, and finally non-targeted lipidomics detection was carried out. According to the test results, the two groups were analyzed by diversification, and the markers were screened by T test, difference multiple and partial least squares discriminant analysis. A total of 104 fatty acids, including 3 acylcarnitine (AcCa), 4 diglycerides (DG), 23 triglycerides (TG), 8 ardiolipin (CL), 21 phosphatidylcholine (PC), 29 phosphatidylethanolamine (PE), 3 phosphatidylglycerol (PG), 6 phosphatidylinositol (PI) and 7 phosphatidylserine (PS) were detected. The 33 kinds of lipids were preliminarily screened by T-test (P<0.05), of which TG were 23, AcCa were 2, DG were 4 and PE were 4. Further screening by VIP value (VIP>1) and FC value (FC>2 or FC<0.5),there were 22 kinds of lipids, including 21 TG and 1 DG. The results showed that lipidomics could be used as a method to distinguish the intramuscular fat content of Beijing black pig. The lipid difference substances affecting intramuscular fat content mainly concentrated in TG and DG.

Key words: Beijing black pig, lipidomics, triglyceride, intramuscular fat

CLC Number: