Role of Pregastric Esterase in the Abomasal Hydrolysis of Milk Fat in the Young Calf

摘要: Summary The hydrolysis of milk fat in the abomasum young calf was studied. Whole either nipple-fed (oral feeding) or placed directly into (abomasal feeding). purpose latter system to minimize entrance pregastric esterase. At 1, 2, and 3 hr. after feeding, contents were sampled analyzed for total free fatty acids (FFA). FFA from oral-fed samples also separated three fractions: butyric, valeric, higher acids. mean concentrations (μ M /5g. contents) as follows oral abomasal systems respectively: 1 hr., 86, 19; 2 101, 20; 120, 30. For samples, follows, 34, 7, 53; 19, 4, 77; 11, 3, 119.