@entity742 were fed diets containing 7.5% added @entity3106 , @entity3952 , or @entity21802 for 21 days. In addition, 50 microCi/kg cerium-141 was included for the last 10 days on experimental diets as an unabsorbed reference substance. In the rumen dietary @entity1674 were approximately 50% hydrolyzed, and hydrogenation resulted in saturation of the free @entity844 fraction. Some net synthesis of phospholipids, presumably microbial phospholipids, occurred in the rumen. In the intestine immediately distal to the pylorus, extensive secretion of @entity3645 , @entity165 , phospholipids, @entity1674 , free @entity1718 , and lipase occurred. This resulted in doubling of @entity844 fluxes through the duodenum. These endogenous secretions were reabsorbed rapidly however, with the major site of lipid and @entity6741 absorption in the region .6 to 4 m distal to the pylorus. Additional but less absorption occurred in the more distal segments of the small intestine. Overall absorption of @entity3106 , @entity3952 , and @entity21802 supplements was in the range 60 to 70%, and no differences were apparent between fats. @entity1474 were over 90% absorbed as compared with 55 to 65% for @entity1718 . No significant effect of any of the supplements was observed on ruminal total volatile @entity1718 , ratios of volatile @entity1718 , or on overall cellulose or caloric digestion.

Digestion and absorption of lipids and @entity3645 in @entity742 fed @entity3106 , @entity3952 , or XXXX .

@entity21802 :: ('MESH:C022618', 'Chemical') :: ['tristearin'] @entity3106 :: ('MESH:C031183', 'Chemical') :: ['stearic acid'] @entity3952 :: ('MESH:D019301', 'Chemical') :: ['oleic acid'] @entity742 :: ('9940', 'Species') :: ['Sheep'] @entity844 :: ('CHEBI:35366', 'Chemical') :: ['fatty acid'] @entity1674 :: ('MESH:D014280', 'Chemical') :: ['triglycerides'] @entity1474 :: ('MESH:D005231', 'Chemical') :: ['Unsaturated fatty acids'] @entity6741 :: ('CHEBI:3098', 'Chemical') :: ['bile acid'] @entity3645 :: ('MESH:D001647', 'Chemical') :: ['bile acids'] @entity1718 :: ('MESH:D005227', 'Chemical') :: ['fatty acids', 'saturated fatty acids'] @entity165 :: ('MESH:D002784', 'Chemical') :: ['cholesterol']
@entity21802 :: (MESH:C022618,Chemical) :: ['tristearin']
