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английский) 3:
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Linoleic acid was digested throughout the intestinal tract, whereas the digestion of palmitic, stearic, and oleic acids started only in the jejunum. Measurements at the lower ileal level showed that the unsaturated fa (linoleic and oleic acids).well digested (0.90 to 0.94), the work of the source of fat. in contrast, the digestibility of saturated fa (palmiticand stearic acids) was (p < 0.05) influenced by the fat source. Digestibility coefficients of palmitic andstearic acids at lower ileum were markedly higher (p < 0.05) in the diet containing soybean oil (0.77 to 0.85)compared with that containing tallow (0.58 to 0.68). in experiment 2, ileal endogenous fat loss was determinedto be 1714 mg / kg of dm intake. Endogenous fat was composed mainly of palmitic (75 g / kg), stearic (131 g /kg), oleic (73 g / kg), linoleic (133 (g / kg), and arachidonic (60 g / kg) acids. Fatty acid profile of endogenous fatremarkably was found to be similar to that of the bile, suggesting that the reabsorption of fat and fa from thebile was incomplete in growing broiler chickens.
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