Abstract: This study was carried out to characterize the effects of different oils on fatty acid profiles in both culture medium and ruminal microbes in vitro by 4 goats. Four treatments were peanut oil, rapeseed oil, corn oil and soybean oil, respectively. The results showed that significant differences were found in all kinds of fatty acids identified between treatment oils (p<0.05). The percentage of stearic acid (average of 57.46%), palmitic acid (average of 16.50%) and oleic acid (average of 10.77%) was comparatively higher in 24 h culture medium regardless of treatments and there were profound effects of oils on the fatty acid composition of 24 h culture medium and most kinds of fatty acids in culture medium were related to these in substrate oils (2-tailed <0.05). Additionally, regardless of treatments stearic acid (average of 36.09%), palmitic acid (average of 27.37%) and oleic acid (average of 18.05%) were most abundant in microbes. However, significant relationships were only found in few kinds of fatty acids between microbes and substrate oils (2-tailed <0.05). Taken together, fatty acid profiles of oils had significant effects on that of 24 h culture medium while no remarkable effects on that of ruminal microorganisms in vitro.
M.Z. Wang, H.R. Wang, L.H. Yu, D.P. Bu and J.Q. Wang, 2012. Effects of Different Oils on the Fatty Acid Profiles of Culture Medium and Ruminal Microorganisms in vitro. Journal of Animal and Veterinary Advances, 11: 3251-3257.