Fig. 1

The effect of supplement bile acids on milk yield and fatty acid composition of dairy goats fed starch-rich diets (n = 9). A Average daily milk yield during the test period. B FA composition C Total fatty acid D Different source of milk FAs E Milk FA classification. HS means fed starch-rich diet, HSB means fed starch-rich diet supply 4 g/d bile acids for dairy goats every day. De novo (FAs < 16 C) originates from de novo synthesis in the mammary gland, preformed (FAs > 16 C) originate from plasma, and mixed (FAs = 16 C) originates from both sources. FAs Fatty acids, TFA Total fatty acid, SFA Saturated fatty acids, MUFA Monounsaturated fatty acids, PUFA Polyunsaturated fatty acids. ^*P < 0.05