›› 2018, Vol. 45 ›› Issue (6): 1556-1563.doi: 10.16431/j.cnki.1671-7236.2018.06.017

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Study on Seasonal Variation of Milk Fatty Acid of Buffalo in Guangxi

GUO Yanxia, LIANG Xianwei, LIANG Xin, PENG Kaiping, TANG Qingfeng, LI Mengwei, LI Lili, YANG Chengjian   

  1. Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China
  • Received:2017-12-05 Online:2018-06-20 Published:2018-06-15

Abstract:

In order to study the effect of different seasons on the composition of milk fatty acids in buffalo,720 buffalo milk samples in Guangxi all the year round were selected,the composition and content of milk fatty acids in buffalo were determined by gas chromatography to analyze the seasonal changes of milk fatty acids in buffalo.The results showed that 38 kinds of fatty acids were detected in buffalo milk,except for C13:0,C15:0,C16:0 and C20:4n6,the seasons had significant influence on other fatty acids content (P<0.05).The total content of polyunsaturated fatty acids (PUFA) had no significant difference in the four seasons(P>0.05),the total content of short chain fatty acids (SCFA) in winter was significantly higher than other seasons (P<0.05),and the total content of long chain fatty acids (LCFA) and single unsaturated fatty acids (SUFA) in summer were significantly higher than other seasons (P<0.05),while the total content of medium chain fatty acid (MCFA) and saturated fatty acids (SFA) in summer were significantly lower than other seasons (P<0.05).The total content of omega-6 series fatty acids in summer were significantly higher than other seasons (P<0.05),the total content of omega-3 series fatty acids in spring and autumn were significantly higher than that of in summer and winter (P<0.05).The ratio of omega-6/omega-3 fatty acids was the lowest in spring (4.43),followed by autumn and winter,and the ratio of omega-6/omega-3 fatty acids was the highest in summer (6.32).Therefore,it could be seen that the effect of different seasons on the composition of milk fatty acids in buffalo was significant,the farm manager should improve the diet structure and raise the level of raising and management to optimize the composition of fatty acids.

Key words: season; buffalo milk; fatty acid

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