Abstract
The aim of the present study was to investigate the potential use of re-esterified oils, differing in their degree of saturation and molecular structure, in comparison with their corresponding acid and native oils in broiler chicken diets. For this purpose, 144 one-d-old female broiler chickens were randomly distributed in 48 cages. Birds were fed a basal diet supplemented with 6% of native palm oil ( PN: ), acid palm oil ( PA: ), re-esterified palm oil low in mono- ( MAG: ) and diacylglycerols ( DAG: ) ( PEL: ), re-esterified palm oil high in MAG and DAG ( PEH: ), native soybean oil ( SN: ), acid soybean oil ( SA: ), re-esterified soybean oil low in MAG and DAG ( SEL: ), or re-esterified soybean oil high in MAG and DAG ( SEH: ), which resulted in a 2 × 4 factorial arrangement. Digestibility balances showed that the degree of saturation of fat generally exerted a greater impact than did the fat molecular structure. The dietary utilization of S sources was higher than that of P sources. However, the increased sn-2 saturated fatty acid ( SFA: ) content of EL oils in the starter period and the increased MAG and DAG content of EH oils in the grower-finisher period yielded favorable effects on the SFA apparent absorption, especially...Continue Reading
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