Impact of breeding environments on the fatty acid composition of Rana chensinensis ovum from Changbai Mountain based on UPLC-Q/TOF-MS analysis基于uplc-q/tof-ms分析养殖环境对长白山林蛙卵子脂肪酸组成的影响JOURNAL OF FOOD COMPOSITION AND ANALYSISIF4.62023-10-012PRE